Home

TABLE OF CONTENTS - DodgeIntrepid.Net

1. 360 HIGH SPEED RADIATOR FAN RELAY CONNECTOR PINOUTS FUSES CAV CIRCUIT FUNCTION R G A1 12RD FUSED K 10 12RD DG FUSED B ABS L 12PK WT FUSED B 14RD WT FUSED 0 15 18PK FUSED 16 12GY FUSED B 17 14RD BR FUSED B J A2 12PK BK FUSED H 20 12RD DB FUSED B ABS 14RD TN FUSED B Q 18RD LB FUSED D 1218 80 FUSED 7 16WT DB FUSED 4 FUSED B A5 12RD OR FUSED B 14RD BK FUSED 1142 160R DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT F42 160010 AUTOMATIC SHUT DOWN RELAY OUTPUT A C COMPRESSOR CLUTCH RELAY CAV CIRCUIT FUNCTION E
2. CAV CIRCUIT FUNCTION 1 1 20LG BK TRS T1 SENSE 2 3 20VT TRS T3 SENSE 4 5 5 2016 80 AUTOSTICK UPSHIFT SWITCH SENSE 6 K71 20WT RD EATX RPM SIGNAL 7 D21 20PK TN SCI TRANSMIT 8 41 14YL FUSED IGNITION SWITCH OUTPUT ST 9 9 16 OVERDRIVE PRESSURE SWITCH SENSE 10 T10 20YL DG TORQUE MANAGEMENT REQUEST SENSE 11 F11 20RD WT FUSED IGNITION SWITCH OUTPUT ST RUN OFF 12 K22 200R DB THROTTLE POSITION SENSOR SIGNAL 13 13 20DB BK SPEED SENSOR GROUND 14 T14 20LG WT OUTPUT SPEED SENSOR SIGNAL 21 1 15 15 2016 TRANSMISSION CONTROL RELAY CONTROL 16 716 16RD TRANSMISSION CONTROL RELAY OUTPUT 17 716 16RD TRANSMISSION CONTROL RELAY OUTPUT 18 19 T19 16WT 2 4 SOLENOID CONTROL 20 T20 16LB LOW REVERSE SOLENOID CONTROL aly 21 T 22 L 23 24 25 9 T N 27 N 28 29 sid 30 31 32 z o T 34 35 P 36 37 I 38 N 80 40 2 39 40 U TRANSMISSION 41 141 20BR YL TRS T41 SENSE T CONTROL 42 T42 20VT WT TRS T42 SENSE 6 MODULE 43 D25 20VT YL PCI BUS 44 T44 20YL LB AUTOSTICK DOWNSHIFT SWITCH SENSE 45 46 06 20PK LB SCI RECEIVE 47 T47 16YL BK 2 4 PRESSURE SWITCH SENSE 48 49 z 50 T50
3. 362 TRANSMISSION CONTROL 2 2 362 WIPER HIGH LOW 2 2 22222222 2 2 362 WIPER ON OFF 362 POWER STEERING PRESSURE SWITCH GRAY 2 WAY 363 POWERTRAIN CONTROL MODULE C1 40 363 vi 10 0 TABLE OF CONTENTS Continued POWERTRAIN CONTROL MODULE C2 GRAY 40 364 RADIATOR FAN MOTOR ASSEMBLY 4 WAY 364 SENTRY KEY IMMOBILIZER MODULE BLACK 6 WAY 365 SHORT RUNNER VALVE SOLENOID 3 2L 3 5L DK BLUE 2 WAY 365 THROTTLE POSITION SENSOR 2 7L BLACK 3 365 THROTTLE POSITION SENSOR 3 2L 3 5L NATURAL 365 TRANSMISSION CONTROL MODULE BLACK 60 366 TRANSMISSION RANGE SENSOR LT GREEN 10 367 TRANSMISSION SOLENOID PRESSURE SWITCH ASSEMBLY BLACK 8 WAY 367 VEHICLE SPEED CONTROL SERVO BLACK 4 367 SCHEMATIC DIAGRAMS 369 10 1 ENGINE CONTROLS 2000 369 vii NOTES viii 1 0 INTRODUCTION The procedures contained this manual include specifications instructions and graphics
4. CAV CIRCUIT FUNCTION 1 24 20GY BK 2 7L CRANKSHAFT POSITION SENSOR SIGNAL 1 7 2008 3 2L 3 5L 8V SUPPLY 2 K4 20BK LB SENSOR GROUND K24 20GY BK 3 2L 3 5L CRANKSHAFT POSITION SENSOR SIGNAL 3 K7 2008 2 7L 8V SUPPLY CRANKSHAFT POSITION SENSOR 3 2L 3 5L 3 WAY CAV CIRCUIT FUNCTION 1 24 20GY BK 2 7L CRANKSHAFT POSITION SENSOR SIGNAL 1 7 2008 3 2L 3 5L 8V SUPPLY 2 K4 20BK LB SENSOR GROUND 3 K24 20GY BK 3 2L 3 5L CRANKSHAFT POSITION SENSOR SIGNAL 3 K7 2008 2 71 8V SUPPLY DATA LINK CONNECTOR BLACK 16 WAY CAV CIRCUIT FUNCTION 1 2 025 20VT YL PCI BUS 3 4 21 20BK GROUND 5 Z2 20BK LG GROUND 6 1020 2010 SCI RECEIVE PCM 7 021 20PK TN SCI TRANSMIT 8 Fit 20RD WT FUSED IGNITION SWITCH OUTPUT ST RUN OFF 9 10 11 12 13 14 106 2 SCI RECEIVE TCM 15 16 M1 20PK FUSED B 348 CONNECTOR PINOUTS EGR SOLENOID BLACK 6 WAY A mA CAV CIRCUIT FUNCTION 1 235 20LG PK EGR SENSOR SIGNAL 3 1 2 6 20VT WT 5V SUPPLY i 3 18BK LB SENSOR GROUND 4 35 20GY YL EGR SOLENOID CONTROL EGR 5 SOLENOID 6 142 180806 FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT aa LT GREEN 3 ENGINE OIL PRESSURE SWITCH GREEN 2 WAY CAV CIRCUIT FUNCTION 1 G6 20GY OIL
5. OF THESE CONDITIONS COULD RESULT IN A RICH OR LEAN CONDITION CAUSING AN OXYGEN SENSOR TROUBLE CODE TO BE STORED IN THE PCM OR THE VEHICLE MAY EXHIBIT ONE OR MORE THE DRIVEABILITY SYMPTOMS LISTED IN THE TABLE OF CONTENTS 3 2 6 SKIS OVERVIEW The Sentry Key Immobilizer System SKIS is an immobilizer system design to prevent unauthorized vehicle operation The system consists of a Sentry Key Immobilizer Module SKIM ignition key s equipped with a transponder chip and engine con troller When the ignition switch is turned on the SKIM interrogates the ignition key If the ignition key is Valid the SKIM sends a PCI Bus message to the engine controller indicating the presence of a valid igntion key Upon receiving a Valid key signal the PCM will allow the engine to continue to operate 3 2 7 SKIM ON BOARD DIAGNOSTICS TheSKIM has been programmed to transmit and monitor many different coded messages as well as PCI Bus messages This monitoring is called On Board Diagnosis GENERAL INFORMATION Certain criteria must be met for a diagnostic trouble code to be entered into the SKIM memeory The criteria may be a range of Input voltage Bus message or coded messages to the SKIM If all of the criteria for monitoring a circuit or function are met and a fault is sensed a diagnostic trouble code will be stored in the SKIM memory 3 2 8 SKIS OPERATION When ignition power is suppli
6. 40 SIGNAL PCM Continued ACTION APPLICABILITY If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 GoTo 21 Yes Replace the Crankshaft Position Sensor Perform the Powertrain Verification Test Ver 5 No GoTo 22 Turn ignition off Connect the DRBIII lab scope to the CMP signal circuit For best results backprobe at the PCM using Miller special tool 6801 Warning Keep clear of the engine s moving parts Start the engine Observe the lab scope screen while wiggling the wiring harness and connectors Were there any irregularities in the lab scope pattern Yes Check harness and connectors carefully If OK replace the Camshaft Position Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off All Connect the lab scope to the CKP signal circuit For best results
7. APPLICABILITY Ignition On Engine Not Running All With the DRBIII read the A C Pressure Sensor voltage 15 the A C Pressure Sensor voltage below 0 2 volt Yes gt GoTo 2 gt GoTo 7 Disconnect the A C Pressure Sensor harness connector Turn the ignition on With the read the A C Pressure Sensor voltage 15 the voltage above 1 0 volt Yes Replace the A C Pressure Sensor Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Turn the ignition off Disconnect the A C Pressure Sensor harness connector Turn the ignition on Measure the voltage of the A C Signal circuit in the A C Pressure Sensor connector 15 the voltage below 4 9 volts Yes Repair the open 5 Volt Supply Circuit Perform the Powertrain Verification Test Ver 2 No gt GoTo 4 274 amp 1599 PRESSURE SENSOR VOLTS TOO LOW Continued ACTION APPLICABILITY Turn the ignition off Disconnect the A C Pressure Sensor harness connector Disconnect the PCM harness connector Measure the voltage between A C Pressure Sensor Signal circuit and ground 15 the resistance below 5 0 ohms Yes Repair the A C Pressure Sensor Signal Circuit for a short to ground Perform the Powertrain Verification Test Ver 2 GoTo 5 Turn the ignition off All Disconnect the A C Pressure Sensor harness connector Disconnect the PCM harness connector Measure the resistance between th
8. Cees 4 PL 53 AA ENGINE COOLANT gt q DA TEMPERATURE SENSOR 7 8 889 a 335 2 L 5 5 8 2 CONTROLS amp SOLENOIDS Continued 2 7L GENERATOR 2 7L 7 IGNITION COILS Q IG gt 3 2L AND 3 5L m1 nm KS 55 7 2 80ad62a4 oE POSITION a SENSOR IDLE AIR 21 CONTROL 2 MOTOR lt 80ad629f 5 3 2L AND 3 5L Koy Lo WA 9 M P RUNNER VALVE i Oy Pod INTAKE AIR 2 AS RS gt TENSOR PROPORTIONAL SA SOLENOID 1 5 LE ANL c THR T 7575 RA 2 SENSOR CAMSHAFT y MANIFOLD 5 POSITION SENSOR 9 TUNING VALVE 80 46295 80 9 6 OQ Z p4 te Sl A 77 CONTROL SERVO 80ad6381 8 3 DATA LINK CONN
9. 15 CHARGING P0622 GENERATOR FIELD NOT SWITCHING 2 16 P1478 BATTERY TEMP SENSOR VOLTS OUT OF LIMIT 18 1492 TEMP SEN VOLTS TOO 19 P1493 AMBIENT BATT TEMP SEN VOLTS 19 P1594 CHARGING SYSTEM VOLTAGE TOO HIGH 22 P1682 CHARGING SYSTEM VOLTAGE TOO LOW G64 vee 24 CHECKING CHARGING SYSTEM OPERATION WITH NO DTC S PRESENT 27 CHECKING THE AMBIENT BATTERY TEMPERATURE SENSOR 30 COMMUNICATION 0600 FAILURE 31 PO601 PCM INTERNAL CONTROLLER FAILURE os 559 6 des 31 P1685 INVALID SKIM 32 P1686 NO SKIM BUS MESSAGE RECEIVED 2 34 P1687 NO CLUSTER 5 55528 56 5 Pes audeades 36 1695 CCD J1850 MESSAGE FROM BODY CONTROL MODULE 38 1696 FAILURE EEPROM WRITE 41 1697 FAILURE SRI MILE NOT 8 555 4 5 55 5 9 8 9 426 6 42 P1698 NO BUS MESSAGE FROM TRANS CONTROL MODULE 44 BUS SIGNAL OPEN FROM SKIM oy end oe eee 47 RESPONSE FROM POM PCI BUS 13660 ive eben 49 NO RESPONSE FROM SGIONL
10. 92 0138 1 2 O2 SENSOR SHORTED VOLTAGE 92 P0152 2 1 O2 SENSOR SHORTED VOLTAGE 92 158 2 2 O2 SENSOR SHORTED VOLTAGE 92 0133 1 1 O2 SENSOR SLOW RESPONSE o22 ecacteeesteranteneinaprreazad 95 P0134 1 1 O2 SENSOR STAYS 95 P0139 1 2 O2 SENSOR SLOW RESPONSE 95 140 1 2 O2 SENSOR STAYS Al 95 TABLE CONTENTS Continued 153 2 2 SENSOR SLOW RESPONSE oid been devas 95 0154 2 1 02 SENSOR STAYS CENTER 95 P0160 2 2 O2 SENSOR STAYS AT CENTER 4285 P0135 1 1 O2 SENSOR HEATER FAILURE 97 P0141 1 2 02 SENSOR HEATER FAILURE 25866 97 155 21 O2 SENSOR HEATER FAILURE 97 P0161 2 2 O2 SENSOR HEATER FAILURE 52 5 irina 97 171 1 1 FUEL SYSTEM LEAN 2 8 wes 100 P0174 2 1 FUEL SYS TEM LEAN oo cecen 100 P0172 1 1 FUEL SYSTEM RICH 106 P0175 2 1 FUEL SYSTEM RICH perap ERRER 106 P0201 INJECTOR 1 CONTROL 25 255 112 P0202 INJECTOR 2 CONTROL CIRCUIT caused
11. 364 CONNECTOR PINOUTS BLACK P SENTRY KEY IMMOBILIZER MODULE BLACK 6 WAY CIRCUIT FUNCTION 1 2 1025 20VT YL PCI BUS 3 SENTRY KEY 4 165 200 FUSED IGNITION SWITCH OUTPUT ST RUN IMMOBILIZER 5 22 20BK LG GROUND 1 20PK FUSED B MODULE SSE Bu DK BLUE AG SHORT RUNNER VALVE SOLENOID 3 2L 3 5L DK BLUE 2 WAY AWE 1 CAV CIRCUIT FUNCTION 1 K236 18GY PK SHORT RUNNER VALVE SOLENOID CONTROL SHORT RUNNER 2 F142 180R DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT VALVE SOLENOID 3 23 51 9 THROTTLE POSITION SENSOR 2 71 BLACK 3 WAY P CAV CIRCUIT FUNCTION 1 20 5V SUPPLY N 3 1 2 20R DB THROTTLE POSITION SENSOR SIGNAL 3 20 SENSOR GROUND THROTTLE POSITION U SENSOR T 2 7L S NATURAL THROTTLE POSITION SENSOR 3 2L 3 5L NATURAL 3 WAY CAV CIRCUIT FUNCTION 1 20VT WT 5V SUPPLY 2 22 THROTTLE POSITION SENSOR SIGNAL 3 20 SENSOR GROUND THROTTLE POSITION SENSOR 3 2L 3 5L 365 CONNECTOR PINOUTS TRANSMISSION CONTROL MODULE BLACK 60 WAY
12. APPLICABILITY Note For this test to be valid the thermostat must be operating correctly All Note This test works best if performed on a cold engine cold soak Turn Ignition On With the in sensors read the Eng Coolant Tmp Deg value If the engine was allowed to sit overnight cold soak the temperature value should be a sensible value that is somewhere close to the surrounding temperature ambient temperature Note If engine coolant temperature is above 82 180 F allow the engine to cool until 65 150 is reached Start the Engine During engine warm up monitor the Eng Coolant Tmp Deg value The temp deg value change should be a smooth transition from start up to normal operating temp 82 C 180 F The value should reach at least 82 180 F Was the Eng Coolant Tmp Deg value increase a smooth transition and did it reach at least 180 Yes gt GoTo 16 No Replace the Engine Coolant Temperature Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Disconnect the fuel supply line at the fuel rail Connect fuel line adapter 6539 5 16 or 6631 3 8 to the disconnected fuel supply line Insert the other end of the adapter into a graduated container Cautio
13. gt GoTo 6 If there are no possible causes remaining replace the Fuel Pump Module View repair options Repair Replace the Fuel Pump Module 256 CHECKING FUEL DELIVERY Continued APPLICABILITY Turn ignition off All Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Disconnect the fuel supply line at the fuel rail Connect fuel line adapter 6539 5 16 or 6631 3 8 to the disconnected fuel supply line Insert the other end of the adapter into a graduated container Caution Do not operate the fuel pump for more than 7 seconds in the next step Fuel pump module reservoir may run empty and damage to the fuel pump will result Note Specification A good fuel pump will deliver at least 1 4 liter 1 2 pint of fuel in 7 seconds With the DRB actuate the ASD Fuel System test for 7 seconds 15 the fuel pump capacity within specification Yes gt Test Complete Check for a kinked damaged fuel supply line between the fuel tank and fuel rail If OK replace the fuel pump module Caution Stop All Actuations 257 DRIVEABILITY Symptom CHECKING IAC MOTOR OPERATION WITH NO DTC S POSSIBLE CAUSES IAC 1 DRIVER CIRCUIT OPEN IAC 2 DRIVER CIRCUIT OPEN IAC DRIVER CIRCUIT OPEN IAC 4 DRIVER CIRCUIT OPEN POWERTRAI
14. 206 TABLE CONTENTS Continued P1195 1 1 O2 SENSOR SLOW DURING CATALYST MONITOR 208 P1196 2 1 2 SENSOR SLOW DURING CATALYST MONITOR 208 P1282 FUEL PUMP RELAY CONTROL CIRCUIT ound 210 P1288 SHORT RUNNER SOLENOID CIRCUIT 212 P1289 MANIFOLD TUNE VALVE 2555 2 54 5 54 44 5 214 P1294 TARGET IDLE NOT REACHED cc ccs 216 P1297 NO CHANGE MAP FROM START TO 218 P1299 VACUUM LEAK FOUND IAC FULLY 5 223 P1388 AUTO SHUTDOWN RELAY CONTROL 225 1389 ASD RELAY OUTPUT VOLTAGE 227 P1391 INTERMITTENT LOSS GMP 230 P1398 MIS FIRE ADAPTIVE NUMERATOR 234 P1486 EVAP LEAK MONITOR PINCHED HOSE 236 P1489 HIGH SPEED FAN CONTROL RELAY CIRCUIT 239 P1490 LOW SPEED FAN CONTROL RELAY CIRCUIT 241 P1494 LEAK DETECT PUMP SW OR MECHANICAL 243 P1495 LEAK DETECTION PUMP SOLENOID CIRCUIT 245 P1496 5 VOLT SUPPLY OUTPUT TOO 247 BRAKE SWITCH OPERATION WITH NO 250 CHECKING ENGINE MECHAN
15. 291 SPEED CONTROL CHECKING SPEED CONTROL OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Ignition on with engine not running SPEED CONTROL With the DRB monitor the P N Switch inputs While observing the display move the Gear Selector to DRIVE Does the show P N switch Yes gt GoTo 20 No Refer tosymptom CHECKING PARK NETURAL SWITCH OP ERATION in the TRANSMISSION category Turn ignition off SPEED CONTROL Disconnect both Speed Control Switches Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the Speed Control Switch Signal Circuit and Sensor Ground Circuit from the On Off Switch connector to the Resume Accel connector 15 resistance below 5 0 ohms for both circuits Yes gt GoTo 21 No Replace the Clockspring Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the Speed Control On Off Switch 2 Way Connector Disconnect the clockspring connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the S C Switch Sensor Ground Circuit from the On Off Switch 2 Way Connector to the clockspring connector Is the resistance below 5 0 ohms Yes gt GoTo 22 No Replace the Clockspring Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the clockspring connector instrument pane
16. read the 15 the Global Good Trip Counter displayed and equal to zero for P 0204 Yes gt GoTo 2 gt GoTo 8 Turn ignition off Disconnect the fuel injector no 4 electrical connector Turn ignition on With the DRB actuate fuel injector no 4 Using 12 volt test light connected to ground check the ASD relay output circuit at the injector connector Does the test light illuminate brightly Yes gt GoTo 3 the open high resistance the ASD relay output circuit Note Check fuse in the PDC Perform the Powertrain Verification Test Ver 5 Stop All Actuations 121 DRIVEABILITY 0204 1 ECTOR 4 CONTROL CIRCUIT Continued ACTION APPLICABILITY Turn ignition off All Disconnect the fuel injector no 4 electrical connector Note The next test step requires the use of an analog voltmeter Note Pay careful attention to the voltmeter needle in order to have valid test results Connect the positive lead of the voltmeter to a known good 12 volt source B Connect the negative lead of the voltmeter to the fuel injector no 4 driver circuit at the fuel injector no 4 electrical connector Turn ignition on With the DRB actuate fuel injector no 4 and observe the voltmeter needle Does the needle fluctuate Yes gt GoTo 4 No GoTo 5 Stop All Actuations If there no possible causes remaining replace the fuel injector View repair options Repair R
17. 237 DRIVEABILITY P1486 E VAP LEAK MONITOR PINCHED HOSE FOUND Continued ACTION APPLICABILITY Note All previously disconnected hose s reconnected All Repressurize the EVAP System On Miller Tool 6872A set the old switch to Open and set the Vent switch to Closed Turn the pump timer On and watch the gauge When the gauge pressure reaches 14 H 20 turn the Pressure Hold Valve to Closed Turn the pump timer off Disconnect the EVAP hoses at the Purge Solenoid Did the pressure drop when the hose was disconnected Yes gt GoTo 5 No Repair or replace hose tube as necessary Perform Powertrain Verification Test VER 6 Disconnect and remove the LDP pressure hose The LDP pressure hose is the hose that connects the EVAP Canister to the Leak Detection Pump Inspect the LDP pressure hose for any obstructions or physical damage 15 the LDP pressure hose free from defects Yes Replace the Leak Detection Pump Perform Powertrain Verification Test VER 6 Repair replace hose as necessary Perform the Powertrain Verification Test Ver 6 At this time the conditions required to set the DTC are not present Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note A thorough visual inspection of the Evap system hoses tubes and connections may save time in your dia
18. 7 3 3 2 INTERMITTENT CODE 8 3 3 3 RESET COUNTER 8 3 3 4 HANDLING NO TROUBLE CODE PROBLEMS 8 34 USING THE DAB 11 3 5 DRB ERROR MESSAGES AND BLANK 11 3 5 1 DRE DOES NOT POWER UP 4 620 ee eee kes 11 3 5 2 DISPLAY IS NOT VISIBLE 11 DISCLAIMERS SAFETY 11 DISCLAIMERS ese 11 SAPS ts Hebe 11 4 21 TECHNICIAN SAFETY 11 42 2 VEHICLE PREPARATION FOR 5 12 42 3 SERVICING SUB ASSEMBUES 12 424 SAFETY 1 12 43 WARNINGS AND CAUTIONS deed 12 431 ROAD TEST WARNINGS 12 4 3 2 VEHICLE DAMAGE CAUTIONS 12 4 3 3 ELECTRONIC PINION FACTOR 13 REQUIRED TOOLS AND EQUIPMENT 13 GLOSSARY OF 13 7 0 TABLE OF CONTENTS Continued DIAGNOSTIC INFORMATION AND
19. APPLICABILITY Turn Ignition On With the DRB read the 5 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 No gt GoTo 6 Turn Ignition Off Disconnect the 025 connector Turn Ignition On With the DRB actuate the O2 HEATER TEST Using a Voltmeter measure the voltage at the O2S connector ASD Relay Output circuit 15 the voltage above 11 0 volts Yes gt GoTo 3 No Repair the open circuit Perform Powertrain Verification Test VER 5A Turn Ignition Off Disconnect the O2S connector Measurement is taken at the component side of connector Using Ohmmeter measure the resistance between the 025 Heater Feed circuit and the 025 Heater Ground circuit 15 the resistance between 3 0 and 7 0 ohms Yes gt GoTo 5 No Replace the 025 Perform Powertrain Verification Test VER 5A If there are no possible causes remaining replace the PCM View repair options Repair Replace the PCM Perform Powertrain Verification Test VER 5A Turn Ignition Off All Disconnect the O2S connector Using an Ohmmeter measure the resistance of the O2S Heater Ground circuit to ground Is the resistance below 5 0 ohms Yes gt GoTo 4 Repair the open ground circuit Perform Powertrain Verification Test VER 5A 98 DRIVEABILITY 0135 1 1 O2 SENSOR HEATER FAILURE Continued APPLICABILITY Turn the ignition off All Note Visually inspect the related
20. SC SWITCH ASD RELAY SENSOR GROUND SC POWER TO SERVO OUTPUT TO EATX TO EATX MGT AIR FROM EATX VSS CONTROL TOTRS SWITCH PROPORTIONAL 2 7L ONLY PONS kocsma 1 ONLY PURAR SOLENOID MANIFOLD SOLENOID TO POWER STEERING SW 3 5L ONLY FUSED 5 IGNITION SCI RX SHORT RUNNER SOLENOID OUTPUT DATA LINK CONNECTOR SCITX H TO BRAKE 5 SWITCH SPEED BATTERY RELAY SPEED M 55 gt RELAY 2 CLUTCH 69 RELAY T PCI BUS J1850 gt 7 RADIATOR FAN MOTORS 80b4fadc 369 NOTES 370
21. Yes Check for the CKP Sensor Signal ckt shorted to the CMP Sensor Signal ckt OR Check for valve timing out of specs Perform the Powertrain Verification Test Ver 5 GoTo 9 Turn ignition on With the actuate the ASD Fuel System test Note It may be necessary to use a mechanics stethoscope in the next step Listen for fuel pump operation at the fuel tank Can the fuel pump operation be heard Yes gt GoTo 10 No GoTo 18 Caution Stop All Actuations 299 STARTING ENGINE CRANKS DOES NOT START Continued ACTION APPLICABILITY Turn ignition off All Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Remove the pressure test port cap at the fuel rail test port Connect a fuel pressure gauge to the test port pressure fitting on the fuel rail Ignition on With the DRB actuate the ASD Fuel System test and observe the fuel pressure gauge Note Fuel pressure specification is 406 KPa 34 KPa 59 psi 5 psi Choose a conclusion that best matches your fuel pressure reading Below Specification GoTo 14 Within Specification GoTo 11 Above Specification Replace the fuel filter pressure regulator Caution Stop All Actuations Turn ignition off Warning The fuel system is under a constant pressure even with the engine off Before testing or servici
22. Yes Check harness and connectors carefully If OK replace the Crankshaft Position Sensor Perform the Powertrain Verification Test Ver 5 Test Complete 233 DRIVEABILITY Symptom P1398 MIS FIRE ADAPTIVE NUMERATOR AT LIMIT When Monitored and Set Condition P1398 MIS FIRE ADAPTIVE NUMERATOR AT LIMIT When Monitored Under closed throttle decel with A C off ECT above 75 and more than 50 seconds after engine start Set Condition One of the CKP sensor target windows has more than 2 86 variance from the reference window POSSIBLE CAUSES DAMAGED TONE WHEEL FLEX PLATE CRANKSHAFT CKP SENSOR CONNECTOR WIRING CRANKSHAFT POSITION SENSOR IMPROPERLY INSTALLED LOOSE CRANKSHAFT POSITION SENSOR ACTION APPLICABILITY Turn ignition on All With the DRB read the DTC s 15 the Global Good Trip Counter displayed and equal to zero for P1398 Yes gt GoTo 4 gt GoTo 2 Note Check for any TSB s that may apply to this symptom Read and record the Freeze Frame Data Use this information to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Turn ignition on engine off With the DRB in the miscellaneous menu choose Clear PCM battery disconnect to reset the PCM With the DRB choose the Mis Fire Pre test screen Road test the vehicle and relearn the adaptive numerator The adaptive numerator is learned when the
23. se beeact 345 C308 NATURAL BODY SIDE 345 C308 NATURAL FUEL TANK JUMPER 345 CAMSHAFT POSITION SENSOR BLACK 345 CLOCKSPRING 1 NATURAL WAY 346 CLOCKSPRING NO 2 YELLOW 2 WAY 346 COIL ON PLUG NO 1 BLACK 2 WAY sees 346 COIL ON PLUG 2 BLACK 2 346 ON PLUG NO 3 BLACK 347 COIL ON PLUG NO 4 BLACK 2 WAY 347 COIL ON PLUG NO 5 BLACK 2 WAY nana 347 COIL ON PLUG NO 6 BLACK 2 347 CRANKSHAFT POSITION SENSOR 2 7L BLACK WAY 348 CRANKSHAFT POSITION SENSOR 3 2L 3 5L 3 348 DATA LINK CONNECTOR BLACK 16 WAY 252252 gt 55 255 5 52555 5556 348 TABLE OF CONTENTS Continued EGR SOLENOID BLACK 6 349 ENGINE OIL PRESSURE SWITCH GREEN 2 WAY 349 EVAP PURGE SOLENOID BLACK 2 349 FUEL INJECTOR NO 1 BLACK 2 349 FUEL INJECTOR NO 2 BLACK 2 350 FUEL INJECTOR NO
24. 258 DRIVEABILITY CHECKING IAC MOTOR OPERATION WITH NO 5 Continued APPLICABILITY Ignition Off All Disconnect the Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the 2 Driver Circuit from the IAC Motor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open IAC Driver Circuit Perform the Powertrain Verification Test Ver 5 Ignition Off Disconnect the IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using Ohmmeter measure the resistance of the IAC 8 Driver Circuit from the IAC Motor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 7 Repair the open IAC Driver Circuit Perform the Powertrain Verification Test Ver 5 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 259 DRIVEABILITY Symptom CHECKING MAP SENSOR OPERATION WITH NO DTC S POSSIBLE CAUSES MAP SENSOR OUT OF CALIBRATION ACTION APPLICABILITY Turn ignition off All Connect a Vacuum Gauge to a Manifold Vacuum source Start the engine Allow the engine
25. 34 KPa 59 psi 5 psi Choose a conclusion that best matches your fuel pressure reading Below Specification GoTo 5 Within Specification GoTo 14 Above Specification Replace the fuel filter pressure regulator Caution Stop All Actuations 107 DRIVEABILITY 0172 1 1 FUEL SYSTEM RICH Continued ACTION APPLICABILITY Ignition On Engine Not Running All With the DRB read TP Sensor voltage Throttle must be against stop Is the voltage 0 92 or less with the Throttle closed Yes gt GoTo 6 Check for a binding throttle condition If OK replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Note For this test to be valid the thermostat must be operating correctly Note This test works best if performed on a cold engine cold soak Turn Ignition On With the DRB in sensors read the Eng Coolant Tmp Deg value If the engine was allowed to sit overnight cold soak the temperature value should be a sensible value that is somewhere close to the surrounding temperature ambient temperature Note If engine coolant temperature is above 82 C 180 F allow the engine to cool until 65 C 150 is reached Start the Engine During engine warm up monitor the Eng Coolant Tmp Deg value The temp deg value change should be a smooth transition from start up to normal operating temp 82 180 The value should reach at least 82 C 180 F Was the Eng Coolan
26. 5 If this verification procedure is being performed after a TROUBLE CODE repair perform steps 6 through 11 6 Connect the DRB to the data link connector Using the DRB erase any diagnostic trouble codes and reset all values 7 Perform steps 8 through 10 if the PCM has been replaced Then proceed with the verification If the PCM has not been replaced skip those steps and continue verification 8 If PCM has been changed and correct VIN and mileage have not been programmed DTC will be set in ABS and Air bag modules In addition if vehicle is equipped with a Sentry Key Immobilizer Module SKIM Secret Key data must be updated to enable start 9 For ABS and Air Bag systems Enter correct VIN and Mileage PCM Erase codes in ABS and Air Bag modules 10 For SKIM theft alarm Connect to data link conn Goto Theft Alarm SKIM Misc and place SKIM in secured access mode by using the appropriate PIN code for this vehicle Select Update the Secret Key data Data will be transferred from SKIM to PCM 11 Road test vehicle If the test is for an A C DTC ensure it is operating during the following test Drive vehicle for at least 5 minutes 12 For some of time go at least 40 mph At some point stop the vehicle turn off the engine for at least 10 seconds Ensure the trans shifts through all gears When finished read DTCs with the DRB If a DTC has set return to Symptom Lists and follow path 13 the original DTC did not return a
27. Attempt to start the vehicle Does the vehicle start and continue to run Yes gt GoTo 4 gt GoTo 6 56 COMMUNICATION PCI BUS COMMUNICATION FAILURE Continued ACTION APPLICABILITY Turn the ignition off Disconnect the BCM 1 harness connector Measure the resistance of the PCI Bus DLC circuit between the DLC connector the BCM C1 connector cavity 14 Is the resistance below 5 0 ohms Yes gt GoTo 5 No Repair the PCI Bus DLC circuit for an open Perform the Body Verification Test Ver 1 If there are no possible causes remaining replace the BCM View repair options Repair Replace the BCM Perform the Body Verification Test Ver 1 Note Reconnect any previously disconnected components or connectors Turn the ignition on Measure the voltage of the PCI Bus circuit DLC in the Data Link connector Is the voltage steadily above 7 0 volts Yes gt GoTo 7 No gt GoTo 9 Is the voltage steadily above 7 0 volts for any measurement Yes gt GoTo 8 Replace the Body Control Module Perform the Body Verification Test Ver 1 Turn the ignition off Disconnect the module that corresponds to the PCI Bus circuit that measured steadily above 7 0 volts Turn the ignition on Note If the PCI Bus circuit for the Occupant Restraint Controller was above 7 0 volts and is equipped with side airbags disconnect each module one at a time Measure the voltage of the
28. Disconnect the coil on plug no 4 connector Disconnect the Powertrain Control Module connectors Using ohmmeter measure the resistance between the coil driver no 4 circuit and ground B Is the resistance below 5 0 ohms Yes Repair the driver no 4 circuit shorted to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the coil on plug no 4 connector 160 P0354 IGNITION COIL 4 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Note The conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform a wiggle test of the coil on plug wiring while the engine is running Listen for the engine to miss or stall Also watch for the Good Trip Counter to change to 0
29. With the DRB actuate fuel injector no 6 and observe the voltmeter needle Does the needle fluctuate Yes gt GoTo 4 No GoTo 5 Stop All Actuations If there no possible causes remaining replace the fuel injector View repair options Repair Replace the fuel injector Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 6 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the fuel injector no 6 driver circuit from the fuel injector no 6 electrical connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open fuel injector no 6 driver circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 6 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the fuel injector no 6 driver circuit and ground B Is the resistance below 5 0 ohms Yes Repair the injector driver circuit for a short to ground Note shorted injector driver circuit may have ruined the injector also Injector resistance should be between 10 and 16 ohms Perform the Powertrain Verification Test Ver 5 No gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain C
30. Yes gt GoTo 6 No Repair the open TPS 5 Volt Supply Circuit Perform Powertrain Verification Test VER 5A Turn the ignition off Disconnect the Throttle Position Sensor harness connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary With an Ohmmeter measure the TP Sensor Signal Circuit to ground at the PCM connector 15 the resistance below 5 0 ohms Yes Repair the Throttle Position Sensor Signal Circuit for a short to ground Perform Powertrain Verification Test VER 5 GoTo 7 Turn the ignition off Disconnect the Trans Control Module harness connector Turn the ignition on Using a DRB monitor the TP sensor voltage 15 the voltage above 4 0 volts Yes Replace the Transmission Control Module Perform Powertrain Verification Test VER 5 No GoTo 8 82 0122 POSITION SENSOR VOLTAGE LOW Continued APPLICABILITY Turn the ignition off All Disconnect the Throttle Position Sensor harness connector Disconnect the Powertrain Control Module connector harness Note Check connectors Clean repair as necessary Measure the resistance between the Sensor Signal Circuit and the Sensor Ground Circuit at the PCM connector 15 the resistance below 5 0 ohms Yes Repair the Sensor Signal Circuit shorted to Sensor Ground Circuit Perform Powertrain Verification Test VER 5
31. evs 323 TRANSPONDER RESPONSE MISMATCH s baud acdc desu peed 323 VIN 522 5 AEE 325 VERIFICATION TESTS VERIFICATION TESS ese 327 SYSTEM COMPONENT 8 335 81 Powertrain Body and Trans Control 335 82 CONTROLS amp SOLENOIDS 335 83 DATA LING CONNECTOR ne ac debe hou oe 337 BM SONS eee 338 85 9 341 8 7 341 CONNECTOR gt 55 gt 88855 55854 343 A C COMPRESSOR CLUTCH BLACK 2 343 A C PRESSURE TRANSDUCER GRAY 4 343 AMBIENT TEMPERATURE SENSOR 2 343 BODY CONTROL MODULE GRAY 14 343 BODY CONTROL MODULE C2 BLACK 24 344 BODY CONTROL MODULE WHITE 12 344 BODY CONTROL MODULE C4 BLUE 16 344 BRAKE LAMP SWITCH GRAY 6 WAY
32. 3 NOTE When entering PIN care should be taken because 3 attempts will only be allowed The SKIM module will then lock out the III for 1 hour which will cause the 111 to display Bus Signals Open to SKIM To exit lock out mode the ignition key needs to remain in the On position continually for one hour Turn off all accessories and connect a battery charger if necessary 5 With the DRB III select Theft Alarm Skim Miscellaneous then select desired procedure and follow the steps displayed 6 If the SKIM was replaced ensure all of the vehicles keys are programmed into the new SKIM Replace the SKIM if the problem is corrected otherwise return to the Symptom List Repair is not complete refer to appropriate symptom 7 Note Prior to returning vehicle to the customer perform a module scan to be sure all are erased Erase that are found 334 APPLICABILITY All 5 CONTROL CONTROL MODULE MODULE RKE ANTENNA CONNECTOR 8 0 SYSTEM COMPONENT LOCATIONS 8 1 POWERTRAIN BODY AND TRANS CONTROL MODULES CONNECTORS POWERTRAIN TRANSMISSION 2 1 L 5 805099 STEERING COLUMN MOUNTING SCREW 8007619 8 2 CONTROLS amp SOLENOIDS 2 7L 3 2L AND 3 5L oy
33. Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary Measure resistance between the MAP Sensor Signal Circuit and the MAP Sensor Ground Circuit Is the resistance below 5 0 ohms Yes Repair MAP Sensor Signal Circuit shorted to MAP Sensor Ground Circuit Perform Powertrain Test Verification VER 5A GoTo 7 Turn the ignition off Disconnect the MAP Sensor harness Connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure resistance of MAP Sensor Signal circuit to ground Is the resistance below 5 0 ohms Yes Repair the MAP Sensor Signal Circuit for a short to ground Perform Powertrain Test Verification VER 5A No gt GoTo 8 219 DRIVEABILITY P1297 NO CHANGE IN MAP FROM START TO RUN Continued ACTION APPLICABILITY If there are no possible causes remaining replace the PCM All View repair options Repair Replace the Powertrain Control Module Perform Powertrain Test Verification VER 5A Turn the ignition off Disconnect the MAP Sensor harness connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary Measure the resistance of the MAP Sensor 5 Volt Supply Circuit from the MAP Sensor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 10 No Repair t
34. Disconnect the generator field connector Note Check Connectors Clean repair as necessary Using an Ohmmeter measure the ASD Relay Output Circuit from ASD Relay Connector to ground 15 the resistance below 5 0 ohms Yes Repair the ASD Relay Output Circuit shorted to ground Perform the Powertrain Verification Test Ver 3 No gt GoTo 10 Turn ignition off Disconnect the PCM harness connectors Disconnect the Generator Field harness connector Note Check Connectors Clean repair as necessary Using an Ohmmeter measure the Generator Field Driver Circuit from PCM to Generator 15 the resistance below 5 0 ohms Yes gt GoTo 11 No Repair the open Generator Field Driver Circuit Perform the Powertrain Verification Test Ver 3 If there are possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 3 26 CHARGING Symptom CHECKING CHARGING SYSTEM OPERATION WITH NO DTC S PRESENT POSSIBLE CAUSES CIRCUIT HIGH RESISTANCE GENERATOR GROUND HIGH RESISTANCE B CIRCUIT HIGH RESISTANCE 1 0 VOLT GENERATOR BELT OBSERVABLE PROBLEM GENERATOR FIELD TERMINAL INTERMITTENT PROBLEM TROUBLE CODES PRESENT TROUBLE CODES PRESENT 2000 RPM PCM CHARGING SYSTEM NO CODE ACTION APPLICABILITY Turn ignition off All Note Battery condition must be verified prior to this test Inspect t
35. Note Make sure the Camshaft Position Sensor and or the Crankshaft Position Sensor is tight Note Refer to any technical service bulletins that may apply Were any problems found Yes gt Repair as necessary Perform the Powertrain Verification Test Ver 5 No gt GoTo 11 Turn ignition off With the DRB lab scope backprobe the CMP signal circuit at the PCM connector using Miller special tool 6801 Warning Keep clear of the engine s moving parts Start the engine Observe the lab scope screen while wiggling the wiring harness and connectors related to the CMP sensor Were there any irregularities in the lab scope pattern when the wiggle test was conducted Yes Notewhere wiggling caused a missing CMP sensor signal Repair CMP sensor wiring as necessary Perform the Powertrain Verification Test Ver 5 GoTo 12 232 P1391 INTERMITTENT LOSS OF Continued ACTION APPLICABILITY Turn ignition off With the DRB lab scope backprobe the CKP signal circuit at the PCM connector using Miller special tool 6801 Warning Keep clear of the engine s moving parts Start the engine Observe the lab scope screen while wiggling the wiring harness and connectors related to the CKP sensor Were there any irregularities in the lab scope pattern when the wiggle test was conducted Yes Notewhere wiggling caused a missing CKP sensor signal Repair CKP sensor wiring as neces
36. Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 5A No Test Complete 91 DRIVEABILITY Symptom List 132 1 1 02 SENSOR SHORTED TO VOLTAGE 0138 1 2 02 SENSOR SHORTED TO VOLTAGE 0152 2 1 2 SENSOR SHORTED TO VOLTAGE 0158 2 2 O2 SENSOR SHORTED TO VOLTAGE Test Note symptoms listed above diagnosed using same tests The title for the tests will be 132 1 1 02 SENSOR SHORTED TO VOLTAGE When Monitored and Set Condition 0132 1 1 O2 SENSOR SHORTED TO VOLTAGE When Monitored With battery voltage greater than 10 4 volts engine running for more than 4 minutes and coolant temperature above 180 F Set Condition The oxygen sensor voltage is above 1 5 volts 0138 1 2 O2 SENSOR SHORTED TO VOLTAGE When Monitored With battery voltage greater than 10 4 volts engine running for more than 4 minutes and coolant temperature above 180 F Set Condition The oxygen sensor voltage is above 1 5 volts 0152 2 1 O2 SENSOR SHORTED TO VOLTAGE When Monitored With battery voltage greater than 10 4 volts engine running for more than 4 minutes and coolant temperature above
37. Repair the open or high resistance in the EGR sensor signal circuit Perform the Powertrain Verification Test Ver 2 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the EGR solenoid assembly Perform the Powertrain Verification Test Ver 2 Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 176 Symptom P0405 EGR POSITION SENSOR VOLTAGE TOO LOW When Monitored and Set Condition P0405 EGR POSITION SENSOR VOLTAGE TOO LOW When Monitored With the ignition on and battery voltage above 10 0 volts Set Condition EGR position sensor signal is less than 0 157 volts POSSIBLE CAUSES WIRING HARNESS INTERMITTENT 5 VOLT SUPPLY CKT OPEN EGR SENSOR SIGNAL CKT SHORT TO GND EGR SENSOR SIGNAL CKT SHORTED TO SENSOR GND EGR SENSOR EGR SENSOR POTENTIOMETER PCM ACTION APPLICABILITY Turn the ignition on All With the read DTC s 15 the Global Good Trip displayed and equal to 0 Yes gt GoTo 2 gt G
38. S 288 STARTING ENGINE CRANKS DOES 297 NO CRANK CONDITION naa a Aa 304 RESPONSE FROM WITH NO START CONDITION 307 START AND STALL CONDITION 311 TRANSMISSION 1899 SWITCH STUCK IN PARK OR IN 316 CHECKING PARK NETURAL SWITCH 318 8 0 9 0 TABLE CONTENTS Continued VEHICLE THEFT SECURITY ANTENNA FAILURE heeded ow odes weyee 320 COP FAILURE 320 EEPROM FAILURE 320 E Tea a 320 FAILURE 320 SERIAL LINK INTERNAL cxscechewkeeren s be iria bee 320 STACK OVERFLOW FAILURE 320 POM SIALUS FAILURE 64 6050464 321 ROLLING CODE BE 321 SERIAL LINK Hen ex we bee 321 TRANSPONDER CYCLIC REDUNDANCY CHECK CRC FAILURE 323 TRANSPONDER COMMUNICATION 323 TRANSPONDER ID MISMATCH
39. Symptom CHECKING SPEED CONTROL OPERATION WITH NO DTC S PRESENT POSSIBLE CAUSES GROUND CIRCUIT AT S C SERVO CONNECTOR OPEN GROUND CIRCUIT TO S C RESUME ACCEL SWITCH CONNECTOR OPEN S C SW SIGNAL CKT TO CLOCKSPRING CONN OPEN SPEED CONTROL SWITCH GROUND CIRCUIT OPEN CLOCKSPRING TO S C SWITCH SPEED CONTROL SWITCH GROUND CIRCUIT OPEN PCM TO CLOCKSPRING CLOCKSPRING SHORTED TO GROUND DOES NOT SHOW SET SWITCH PRESSED OR RELEASED S C WIRING HARNESS OBSERVABLE PROBLEM CANCEL SWITCH COAST SWITCH THROTTLE CABLE OBSERVABLE PROBLEM THROTTLE OPENS AND CLOSES S C SWITCH ON OFF S C SWITCH RESUME ACCEL S C SIGNAL CIRCUIT SHORTED TO SENSOR GROUND S C SWITCH SIGNAL CIRCUIT SHORTED TO GROUND SPEED CONTROL ON OFF SWITCH SPEED CONTROL ON OFF SWITCH STUCK SPEED CONTROL RESUME ACCEL SWITCH SPEED CONTROL RESUME ACCEL SWITCH STUCK SPEED CONTROL SW SIG CKT OPEN PCM TO CLOCK SPRING SPEED CONTROL SW SIG CKT OPEN CLOCKSPRING TO S C SWITCH SPEED CONTROL SWITCH SIGNAL CKT SHORTED TO VOLTAGE PCM POWERTRAIN CONTROL MODULE APPLICABILITY Ignition on with engine not running SPEED CONTROL With the DRB monitor the Speed Control Switch inputs While observing the display press the Brake Pedal several times Does the show Brake Switch pressed and released Yes gt GoTo 2 No Refer to symptom BRAKE SWITCH SENSE STATUS DOES NOT CHANGE ON DRB in the SPEED CONTROL category 288 SPEED CONTROL CHECKING SPEED C
40. Ver 1 Turn the ignition off Disconnect the negative battery cable Disconnect the module that corresponds to the Bus circuit that resistance measured below 100 0 ohms Note If the PCI Bus circuit for the Occupant Restraint Controller was below 100 0 ohm and is equipped with side airbags disconnect each module one at a time Measure the resistance between ground and the PCI Bus circuit that previously measured below 100 0 ohms Is the resistance below 100 0 ohms with the module disconnected Yes Repair the PCI Bus circuit that resistance measured below 100 0 ohms for a short to ground Perform the Body Verification Test Ver 1 Replace the module that caused the short to ground on the Bus circuit Perform the Body Verification Test Ver 1 58 Symptom P0106 BAROMETRIC PRESSURE OUT OF RANGE When Monitored and Set Condition P0106 BAROMETRIC PRESSURE OUT OF RANGE When Monitored With theignition key on at less than 350 milliseconds and engine speed at less than 255 RPM Set Condition PCM senses the voltage from the MAP sensor to be less than 2 196 volts but above 0 019 volts for 300 milliseconds POSSIBLE CAUSES MAP SENSOR WIRING HARNESS INTERMITTENT MAP SENSOR WIRING HARNESS OBSERVABLE PROBLEM MAP SENSOR 5 VOLT SUPPLY CIRCUIT OPEN MAP SENSOR 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND MAP SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT MAP SENSOR SIGNAL CIRCUIT
41. Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 Test Complete 161 Symptom P0355 IGNITION COIL 5 PRIMARY CIRCUIT When Monitored and Set Condition 55 COIL 5 PRIMARY CIRCUIT When Monitored With battery voltage greater than 8 volts during engine cranking or greater than 12 volts with engine running engine rpm less than 2016 of the coils in dwell when checked Set Condition Peak current is not achieved with battery based dwell plus 1 5 msec of diagnostic offset It takes less than 3 seconds during cranking or up to 6 seconds while running to set POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT COIL DRIVER NO 5 CIRCUIT OPEN WIRING HARNESS INTERMITTENT COIL DRIVER NO 5 CIRCUIT SHORTED TO GROUND COIL ON PLUG NO 5 POWERTRAIN CONTROL MODULE COIL DRIVER NO 5 ACTION APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for P 0355 Yes gt GoTo 2 gt GoTo 8 Turn ignition off Disconnect the coil on plug no 5 connector Note The following resistance measurement should be taken at 70 80 degrees F Using an ohmmeter measure the primary resistance of the coil on plug Is the resistance between 0 6 and 0 9 ohms Yes gt GoTo 3 No Replace the c
42. When Monitored and Set Condition 0107 SENSOR VOLTAGE TOO LOW When Monitored With the engine RPM above 416 but less than 1500 the TPS voltage less than 1 13 volts and battery voltage greater than 10 4 volts Set Condition The MAP sensor signal voltage is below 0 1 volt for 2 0 seconds with the engine running POSSIBLE CAUSES MAP SENSOR WIRING HARNESS INTERMITTENT MAP SENSOR WIRING HARNESS OBSERVABLE PROBLEM MAP SENSOR 5 VOLT SUPPLY CIRCUIT OPEN MAP SENSOR 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND MAP SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT MAP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND MAP SENSOR PCM 5 VOLT SUPPLY PCM SIGNAL CIRCUIT ACTION APPLICABILITY Start engine All Let engine idle With the DRB read the MAP Sensor voltage Is the MAP Sensor voltage below 0 6 volts Yes gt GoTo 3 gt GoTo 2 Ignition On Engine Not Running With the DRB read the MAP Sensor voltage Is the MAP Sensor voltage below 3 19 volts Yes GoTo 3 gt GoTo 11 63 0107 SENSOR VOLTAGE LOW Continued ACTION APPLICABILITY Turn ignition off Disconnect the MAP Sensor Electrical Connector Note Check connectors Clean repair as necessary Ignition on engine not running Use a Voltmeter in the following step Measure the MAP Sensor 5 Volt Supply Circuit Is the voltage above 4 5 volts Yes gt GoTo 4 GoTo 8 Turn ignition off
43. Yes Repair vacuum harness connections as necessary Perform Powertrain Verification Test VER 5A No Test Complete 187 Symptom List P0442 EVAP LEAK MONITOR MEDIUM 040 LEAK DETECTED P0455 E VAP LEAK MONITOR LARGE LEAK DETECTED Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be 442 LEAK MONITOR MEDIUM 040 LEAK DETECTED When Monitored and Set Condition P0442 E VAP LEAK MONITOR MEDIUM 040 LEAK DETECTED When Monitored Immediately after a cold start with battery ambient temperature between 4 C 40 F and 32 C 90 F and coolant temperature within 12 C 10 F of battery ambient Set Condition If there is a leak larger than 0 040 and smaller than 0 080 in the evaporative system P0455 E VAP LEAK MONITOR LARGE LEAK DETECTED When Monitored Immediately after a cold start with battery ambient temperature between 4 C 40 F and 32 C 90 F and coolant temperature within 12 C 10 F of battery ambient Set Condition There is leak larger than 0 080 the evaporative system POSSIBLE CAUSES CONFIRMED LEAK IN THE EVAP SYSTEM INTERMITTENT LDP MONITOR FAILURE APPLICABILITY Note A loose gas cap could have caused this DTC to set Make sure gas cap All is tight and in good condition Turn ignition on With the DRB read the 5 15 the Global Good Trip Counter
44. 1 circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the coil on plug no 1 connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the coil driver no 1 circuit and ground B Is the resistance below 5 0 ohms Yes Repair the driver 1 circuit shorted to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the coil on plug no 1 connector 151 DRIVEABILITY P0O351 IGNITION COIL 1 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Note The conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform a wiggle test of the coil on plug wiring while the engine is running Listen for the
45. 17 14RD BR FUSED D C2 14DB BK A C COMPRESSOR CLUTCH RELAY OUTPUT C28 20DB 0R COMPRESSOR CLUTCH RELAY CONTROL F18 20LG BK FUSED IGNITION SWITCH OUTPUT ST RUN AUTOMATIC SHUT DOWN RELAY CAV CIRCUIT FUNCTION E 14 FUSED B 14RD WT FUSED B D A142 14DG 0R AUTOMATIC SHUT DOWN RELAY OUTPUT C 20DB YL AUTOMATIC SHUT DOWN RELAY CONTROL ENGINE STARTER MOTOR RELAY CAV CIRCUIT FUNCTION E 2 1280 FUSED B AM 14YL FUSED IGNITION SWITCH OUTPUT START C 9020 STARTER RELAY CONTROL D 140 12BR STARTER RELAY OUTPUT FUEL PUMP RELAY CAV CIRCUIT FUNCTION E 1280 FUSED B D 141 12DG WT FUEL PUMP RELAY OUTPUT F12 20DB WT FUSED IGNITION SWITCH OUTPUT ST RUN C K31 20BR FUEL PUMP RELAY CONTROL HEADLAMP WASHER RELAY BUILT UP EXPORT CAV CIRCUIT FUNCTION V58 20BR YL HEADLAMP WASHER RELAY CONTROL 53 14RD YL FUSED B 53 14RD YL FUSED B D 53 14RD OR WASHER RELAY OUTPUT E A 361 R 4 2 R 4 2 CONNECTOR PINOUTS HIGH SPEED RADIATOR FAN RELAY CAV CIRCUIT FUNCTION E 17 14RD BR FUSED B D 25 14YL HIGH SPEED RADIATOR RELAY OUTPUT 027200816
46. Adaptive Numerator Done Learning line on the Mis fire Pretest screen changes to Yes Also the 200 Rev Cntr line will start to count Did the adaptive numerator relearn Yes gt GoTo 3 gt GoTo 4 234 DRIVEABILITY 1398 5 ADAPTIVE NUMERATOR AT LIMIT Continued ACTION APPLICABILITY Turn ignition off Note Visually inspect the Crankshaft Position Sensor and related wire harness connectors Look for broken bent pushed out or corroded termi nals Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Make sure the sensor mounting bolt s are tight Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 5 Test Complete Turn ignition off Note Visually inspect the Crankshaft Position Sensor and related wire harness connectors Look for broken bent pushed out or corroded termi nals Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Make sure the sensor mounting bolt s are tight Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 5 No gt GoTo 5 Disconnect the Crankshaft Position Sensor connector Note Visually inspect the related wiring harness connectors Look for broken bent pushed out or corroded terminals Inspect t
47. Continued ACTION APPLICABILITY Ignition On Engine Not Running Record all DTC s and freeze frame data now erase Codes Carefully inspect all Connectors for corrosion or spread Terminals before continuing With the DRB actuate the Generator Field Driver Circuit Backprobe the ASD Relay Output Circuit at back of Generator Is the voltage above 10 0 volts Yes gt GoTo 5 No Repair the open ASD Relay Output Circuit Perform the Powertrain Verification Test Ver 3 Turn ignition off Disconnect the PCM Connectors Disconnect the Generator Field harness connector Using an Ohmmeter measure the Generator Field Driver Circuit from PCM Connector to ground Is the resistance below 5 0 ohms Yes Repair the Generator Field Driver Circuit shorted to ground Perform the Powertrain Verification Test Ver 3 gt GoTo 6 Turn ignition off Disconnect the Generator Field harness connector at back of the Generator Note Check connectors Clean repair as necessary Use Ohmmeter in the following steps Measure resistance across the Generator Field Terminals at the Generator 15 the resistance below 5 0 ohms Yes Repair the Generator as necessary Perform the Powertrain Verification Test Ver 3 No gt GoTo 8 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test
48. Disconnect the MAP Sensor Electrical Connector Note Check connectors Clean repair as necessary Ignition on engine not running Use the DRB to read MAP Sensor voltage Is the MAP Sensor voltage above 4 5 volts Yes Replace the MAP Sensor Perform Powertrain Verification Test VER 5A No gt GoTo 5 GoTo 6 Turn the ignition off Disconnect the MAP Sensor harness Connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure resistance of MAP Sensor Signal circuit to ground 15 the resistance below 5 0 ohms Yes Repair the MAP Sensor Signal Circuit for a short to ground Perform Powertrain Test Verification VER 5A gt GoTo 7 If there are possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform Powertrain Test Verification VER 5A Turn the ignition off All Disconnect the MAP Sensor harness connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary Measure resistance between the MAP Sensor Signal Circuit and the MAP Sensor Ground Circuit 15 the resistance below 5 0 ohms Yes gt Repair MAP Sensor Signal Circuit shorted to MAP Sensor Ground Circuit Perform Powertrain Test Verification VER 5A 64 0107 SENSOR VOLTAGE LOW Continued AC
49. Disconnect the Powertrain Control Module Disconnect DRB from the Data Link Connector DLC Using an Ohmmeter measure the resistance of the SCI Transmit Circuit from the PCM to the DLC 15 the resistance below 5 0 ohms Yes gt GoTo 7 No Repair the open SCI Transmit Circuit Perform the Powertrain Verification Test Ver 1 Yes Repair the SCI Transmit Circuit for a short to ground Perform the Powertrain Verification Test Ver 1 No GoTo 8 Connect the to a functional Data Link on another vehicle Turn ignition on With the DRB attempt to read trouble codes Did the DRB display Response Yes gt GoTo 9 No Replace the initial vehicle s Powertrain Control Module Perform Powertrain Verification Test VER 1A If there are no potential causes remaining repair or replace the View repair options Repair Have the DRB repaired or replaced Perform Powertrain Verification Test VER 1A Turn ignition off All Disconnect the Powertrain Control Module Disconnect DRB from the Data Link Connector DLC Using an Ohmmeter measure the resistance between the SCI Transmit Circuit and ground 15 the resistance below 5 0 ohms 52 COMMUNICATION Symptom NO RESPONSE FROM TCM POSSIBLE CAUSES FUSED IGNITION SWITCH OUTPUT RUN ST CIRCUIT OPEN FUSED IGNITION SWITCH OUTPUT START CIRCUIT OPEN GROUND CIRCUIT OPEN FUSED B CIRCUIT TO TCM OPEN OTHER BUS PROBLEMS PRESENT PCI B
50. Engine Timing The PCM cannot detect an incorrectly indexed timing chain camshaft sprocket or crankshaft sprocket The PCM also cannot detect an incorrectly indexed distributor Fuel Pressure Fuel pressure is controlled by the fuel pressure regulator The PCM cannot detect GENERAL INFORMATION a clogged fuel pump inlet filter clogged in line filter or a pinched fuel supply Fuel Injectors The PCM cannot detect if a fuel injector is clogged the pintle is sticking or the wrong injectors are installed Fuel Requirements Poor quality gasoline can cause problems such as hard starting stalling and stumble Use of methanol gasoline blends may re sult in starting and driveability problems See indi vidual symptoms and their definitions in Section 6 0 Glossary of Terms PCM Grounds The PCM cannot detect a poor system ground However a diagnostic trouble code may be stored in the PCM as a result of this condition Throttle Body Air Flow The PCM cannot detect a clogged or restricted air cleaner inlet or filter element Exhaust System The PCM cannot detect a plugged restricted or leaking exhaust system Cylinder Compression The PCM cannot de tect uneven low or high engine cylinder compres sion Excessive Oil Consumption Although the PCM monitors the exhaust stream oxygen content through the oxygen sensor when the system is in a closed loop it cannot determine excessive oil con sumption
51. GoTo 9 If there no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Engine Running Warning KEEP CLEAR OF THE ENGINE S MOVING PARTS Wiggle the Throttle Position Sensor Connectors and Harness Monitor engine RPM Was there any change engine RPM when wiggled Yes Repair the Harness or Connector that caused the engine RPM to change Perform Powertrain Verification Test VER 5 GoTo 11 Ignition On Engine Not Running With the DRBIII read the TPS voltage While monitoring the DRBIII slowly open and close the Throttle 15 the voltage change smooth Yes gt GoTo 12 Replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Ignition On Engine Not Running With the DRB read TP Sensor voltage Wiggle the Throttle Position Sensor Connectors and Harness Monitor the DRB display Was there any change Throttle Position Sensor voltage when wiggled Yes Repair the Harness or Connector that caused the voltage change Perform Powertrain Verification Test VER 5 GoTo 13 Ignition Off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes Repair as necessary Perform Powertrain Verification Test VER 5 No Test Complete 83 DRIVEABILITY Symptom 123 POSITIO
52. Has the Downstream O2 Sensor been replaced without replacing the Upstream O2 Sensor Yes Replace the appropriate Upstream Oxygen Sensor Perform Powertrain Verification Test VER 5A No GoTo 6 If there are no possible causes remaining replace the Catalytic Converter View repair options Repair Replace the Catalytic Converter 183 DRIVEABILITY Symptom P0432 2 1 CATALYTIC CONVERTER EFFICIENCY When Monitored and Set Condition P0432 2 1 CATALYTIC CONVERTER EFFICIENCY When Monitored After engine warm up to 147 deg F 180 seconds of open throttle operation at a speed greater than 20 mph with the engine at 1200 1700 rpm and MAP vacuum between 15 0 21 0 inches of mercury Set Condition As catalyst efficiency deteriorates the switch rate of the downstream O2 sensor approaches that of the upstream O2 sensor If at any point during the test the switch ratio reaches a predetermined value a counter is incremented by one POSSIBLE CAUSES CATALYST 2 1 EFFICIENCY DTC DOES NOT REOCCUR ENGINE MECHANICAL PROBLEM EXHAUST LEAK ENGINE MECHANICAL PROBLEM EXHAUST LEAK CATALYTIC CONVERTER 2 1 DEFECTIVE UPSTREAM 02 SENSOR OLDER THAN DOWNSTREAM 02 SENSOR ACTION APPLICABILITY With the DRB read the DTCs All Is the GLOBAL GOOD TRIP counter displayed and equal to zero Yes gt GoTo 3 gt GoTo 2 At this time the Catalyst Efficiency Failure does not exist or is an intermittent problem With the
53. MAP SENSOR MAP SENSOR NO PRESS CHANGE MAP SENSOR PRESS CHANGE MAP SENSOR RESTRICTED PCM 5 VOLT SUPPLY PCM SIGNAL CIRCUIT ACTION APPLICABILITY Ignition On Engine Not Running All With the DRB read DTC s 15 the MAP sensor voltage too low DTC set Yes gt GoTo 2 gt GoTo 14 Start engine Let engine idle With the DRB read the MAP Sensor voltage 15 the MAP Sensor voltage below 0 6 volts Yes gt GoTo 4 No gt GoTo 3 218 P1297 NO CHANGE MAP FROM START RUN Continued ACTION APPLICABILITY Ignition On Engine Not Running With the DRB read the MAP Sensor voltage Is the MAP Sensor voltage below 3 19 volts Yes gt GoTo 4 gt GoTo 12 Turn ignition off Disconnect the MAP Sensor Electrical Connector Note Check connectors Clean repair as necessary Ignition on engine not running Use a Voltmeter in the following step Measure the MAP Sensor 5 Volt Supply Circuit Is the voltage above 4 5 volts Yes gt GoTo 5 No GoTo 9 Turn ignition off All Disconnect the MAP Sensor Electrical Connector Note Check connectors Clean repair as necessary Ignition on engine not running Use the to read MAP Sensor voltage Is the MAP Sensor voltage above 4 5 volts Yes Replace the MAP Sensor Perform Powertrain Verification Test VER 5A gt GoTo 6 Turn the ignition off Disconnect the MAP Sensor harness connector
54. Ver 5 gt GoTo 17 200 DRIVEABILITY P0505 IDLE AIR CONTROL MOTOR CIRCUITS Continued ACTION APPLICABILITY Ignition Off Disconnect the IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using Ohmmeter measure the resistance of the IAC 2 Driver Circuit from the IAC Motor Connector to the PCM Connector Is the resistance below 5 0 ohms Yes gt GoTo 18 Repair the open IAC Driver Circuit Perform the Powertrain Verification Test Ver 5 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Ignition Off All Disconnect IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using Ohmmeter measure the resistance between IAC 1 Driver circuit and ground B Is the resistance below 5 0 ohms Yes Repair the IAC 1 Driver Circuit shorted to ground Perform the Powertrain Verification Test Ver 5 No GoTo 20 Ignition Off Disconnect the IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using Ohmmeter measure the resistance of the IAC 1 Driver Circuit from the IAC Motor Connector to the PCM Connector I
55. a certain percentage is exceeded for two trips a freeze frame 15 stored the MIL illuminates and a trouble code is stored POSSIBLE CAUSES ENGINE MECHANICAL PROBLEM FUEL FILTER PRESSURE REGULATOR HIGH FUEL PUMP CAPACITY VOLUME OUT OF SPECS HIGH RESISTANCE IN THE FUEL PUMP RELAY OUTPUT CIRCUIT FUEL PUMP INLET STRAINER PLUGGED TPS VOLTAGE CHANGE NOT SMOOTH TPS VOLTAGE GREATER THAN 0 92 VOLTS WITH THROTTLE CLOSED HIGH RESISTANCE IN THE FUEL PUMP GROUND CIRCUIT FUEL PUMP MODULE KINKED RESTRICTED FUEL SUPPLY LINE ECT SENSOR OUT OF CALIBRATION MAP SENSOR OUT OF CALIBRATION 100 0171 1 1 FUEL SYSTEM LEAN Continued APPLICABILITY Turn ignition on With the DRB read the 5 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 GoTo 19 Turn ignition off All Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Note 2 7L engines require the use of Miller Tool 6539 adapter installed in line to the fuel supply line Disconnect the fuel supply line at the fuel rail connection install tool 6539 then connect a fuel pressure gauge to tool 6539 Note 3 2L 3 5L engines have a pressure test port the fuel rail Remove the pressure test port cap at the fuel rail test port Connect a fuel pressure gauge t
56. and against it s stop Is the throttle plate and linkage free from defects Yes gt GoTo 3 No as necessary Perform the Powertrain Verification Test Ver 5 Inspect the Intake Manifold for vacuum leaks Inspect the Power Brake Booster for any vacuum leaks Inspect the PCV system for proper operation or any vacuum leaks Were any problems found Yes Repair vacuum leak as necessary Perform the Powertrain Verification Test Ver 5 No gt GoTo 4 216 P1294 TARGET IDLE REACHED Continued ACTION APPLICABILITY Turn ignition off All Disconnect the hose from the PCV valve and cap the nipple on the PCV valve Disconnect purge hose from the nipple on the throttle body Start the engine Ensure that all accessories are off Allow the engine to reach operating temperature above 82 C 180 F With the DRB in System Tests perform the Minimum Air Flow function 15 the engine RPM between 550 1300 Yes gt Test Complete No GoTo 5 Caution Stop all actuations Turn engine off Turn ignition off Remove the Throttle Body Warning Clean throttle body in a well ventilated area Wear rubber or butyl gloves Do not let cleaner come in contact with eyes or skin Avoid injesting cleaner Wash thoroughly after using cleaner While holding the throttle open spray the entire throttle body bore and the manifold side of the throttle plate with Mopar Parts C
57. backprobe at the PCM using Miller special tool 6801 While observing the lab scope screen turn ignition on do not start engine Look for any pulses generated by the crank sensor Did the Crankshaft Position Sensor generate any pulses Test Complete 149 Symptom 51 COIL 1 PRIMARY CIRCUIT When Monitored and Set Condition P0351 IGNITION COIL 1 PRIMARY CIRCUIT When Monitored With battery voltage greater than 8 volts during engine cranking or greater than 12 volts with engine running engine rpm less than 2016 none of the coils in dwell when checked Set Condition Peak current is not achieved with battery based dwell plus 1 5 msec of diagnostic offset It takes less than 3 seconds during cranking or up to 6 seconds while running to set POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT COIL DRIVER NO 1 CIRCUIT OPEN COIL DRIVER NO 1 CIRCUIT SHORTED TO GROUND WIRING HARNESS INTERMITTENT COIL ON PLUG NO 1 POWERTRAIN CONTROL MODULE COIL DRIVER NO 1 ACTION APPLICABILITY Turn ignition on All With the DRB read the Is the Global Good Trip Counter displayed and equal to zero for P 0351 Yes gt GoTo 2 GoTo 8 Turn ignition off Disconnect the coil on plug no 1 connector Note The following resistance measurement should be taken at 70 80 degrees F Using an ohmmeter measure the primary resistance of the coil o
58. occur at all vehicle speeds If it is se vere enough the engine may stall intake air temperature sensor idle air control valve Combined engine and transmission control module The engine has less than expected power with little or no increase in vehi cle speed when the throttle is opened Leak Detection Pump manifold absolute pressure sensor malfunction indicator lamp manifold tuning valve oxygen sensor Programmable Communication terface powertrain control module powertrain control module positive crankcase ventilation Peripheral Expansion Port There is significantly less fuel mile age than other vehicles of the same design and configuration GENERAL INFORMATION rough unstable or er ratic idle stalling SKIM SKIS start and stall The engine runs unevenly at idle and causes the engine to shake if it is severe enough The engine idle rpm may vary called hunting This condition may cause stalling if it is severe enough Sentry Key Immobilizer Sentry Key Immobilizer System The engine starts but immediately dies 14 surge TPS TRS vss engine rpm fluctuation without cor responding change in throttle posi tion sensor throttle position sensor transmission range sensor vehicle speed sensor signal 7 0 DIAGNOSTIC INFORMATION AND PROCEDURES CHARGING Symptom P0622 GENERATOR FIELD NOT SWITCHING PROPERLY When Monitored and Set Condition P0622 GENERATOR FIE
59. 0 6 and 0 9 ohms Yes gt GoTo 3 No Replace the coil on plug no 2 Perform the Powertrain Verification Test Ver 5 153 DRIVEABILITY 52 COIL 2 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Turn ignition off Disconnect the on plug 2 connector Turn ignition on With the DRB actuate the generator field Usinga 12 volt test light connected to ground check the ASD relay output circuit at the coil on plug no 2 electrical connector Does the test light illuminate brightly Yes gt GoTo 4 No Repair the open high resistance in the ASD relay output circuit Perform the Powertrain Verification Test Ver 5 Stop All Actuations Turn ignition off Note The following test is done at the coil on plug no 2 connector with the coil on plug connected Back probe the coil driver no 2 circuit with Miller tool 6801 and a test light connected to Warning Keep clear of the engine s moving parts Start the engine and observe the test light Does the test light blink flicker Yes gt Test Complete gt GoTo 5 Caution Turn the Engine Off Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the coil driver no 2 circuit from the coil on plug no 2 connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open coil driver no 2 circuit Perform the Powertra
60. 0 ohms Yes Repair the fuel pump relay control circuit for a short to ground Perform the Powertrain Verification Test Ver 2 GoTo 8 If there possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 2 Turn ignition off All Remove the fuel pump relay from the PDC Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the fuel pump relay control circuit from the fuel pump relay connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 7 211 DRIVEABILITY Symptom P1288 SHORT RUNNER SOLENOID CIRCUIT POSSIBLE CAUSES PCM SRV SOLENOID SRV SOLENOID CONTROL CKT OPEN SRV SOLENOID SHORTED TO GND ASD RELAY OUTPUT CKT WIRING HARNESS INTERMITTENT APPLICABILITY Turn the ignition on With the read 15 the global good trip counter equal to 0 Yes gt GoTo 2 gt GoTo 7 Turn the ignition on Disconnect the SRV solenoid harness connector Using a 12 volt Test Light connect a end to theASD relay output ckt and the other end to the SRV solenoid control ckt at the SRV solenoid harness connector With the DRB actuate the SRV solenoid Does the 12 volt test light flash on and off Yes gt Replace the Short Runner Valve Solenoid No gt Go
61. 1806 LOW REVERSE PRESSURE SWITCH SENSE 51 K4 20BK LB SENSOR GROUND 52 52 20RD BK INPUT SPEED SENSOR SIGNAL 53 714 16BK YL GROUND 54 54 20VT PK TRANSMISSION TEMPERATURE SENSOR SIGNAL 55 56 0 18RD LB FUSED 57 713 16BK RD GROUND 58 G7 20WT OR VEHICLE SPEED SENSOR SIGNAL 59 T59 16PK UNDERDRIVE SOLENOID CONTROL 60 T60 16BR OVERDRIVE SOLENOID CONTROL 366 CONNECTOR PINOUTS TRANSMISSION RANGE SENSOR LT GREEN 10 WAY CIRCUIT FUNCTION 1 F20 20WT FUSED IGNITION SWITCH OUTPUT RUN 2 5 lle O 1 3 113 20DB BK SPEED SENSOR GROUND 4 154 20VT PK TRANSMISSION TEMPERATURE 10 5 6 5 141 20BK WT PARK NEUTRAL POSITION SWITCH SENSE 6 11 20VT BK BACK UP LAMP SENSE 7 20LG BK TRS 1 SENSE TRANSMISSION 8 20vT TRS T3 SENSE RANGE SENSOR 9 142 20VT WT TRS T42 SENSE 10 1741 20BR YL TRS 141 SENSE BLACK 56 7 8 TRANSMISSION SOLENOID PRESSURE SWITCH ASSEMBLY BLACK 8 WAY CAV CIRCUIT FUNCTION OO 1 150 1606 LOW REVERSE PRESSURE SWITCH SENSE 2 79 160R BK OVERDRIVE PRESSURE SWITCH SENSE 3 1759 16PK UNDERDRIVE SOLENOID CONTROL 4 T60 16BR OVERDRIVE SOLENOID CONTROL 102 5 147 16YL BK 2 4 PRESSURE SWITCH SENSE 6 116 16RD TRANSM
62. 20BK DG OXYGEN SENSOR 1 1 SIGNAL 31 K90 20 2 7L STARTER RELAY CONTROL 31 90 20TN WT 3 2L 3 5L STARTER RELAY CONTROL 32 20GY BK CRANKSHAFT POSITION SENSOR SIGNAL 33 20TN YL CAMSHAFT POSITION SENSOR SIGNAL 34 K235 20LGIPK EGR SENSOR SIGNAL 35 22 200R DB THROTTLE POSITION SENSOR SIGNAL 36 2006 80 MAP SENSOR SIGNAL 37 K21 20BK RD INTAKE AIR TEMPERATURE SIGNAL 38 39 36 18VT RD MANIFOLD SOLENOID CONTROL 40 5 20GY YL EGR SOLENOID CONTROL 363 CONNECTOR PINOUTS GRAY 5 0000000000 8 1 POWERTRAIN CONTROL MODULE 62 R 2 RADIATOR FAN MOTOR ASSEMBLY POWERTRAIN CONTROL MODULE C2 GRAY 40 WAY CAV CIRCUIT FUNCTION 41 V37 20RD LG SPEED CONTROL SWITCH SIGNAL 42 C18 20DB A C PRESSURE SIGNAL 43 18BK LB SENSOR GROUND 44 K7 200R 8V SUPPLY 45 K10 18DB LG POWER STE
63. 3 BLACK 2 350 FUEL INJECTOR NO 4 BLACK 2 350 FUEL INJECTOR NO 5 BLACK 2 350 FUEL INJECTOR NO 6 BLACK 2 351 FUEL PUMP MODULE GRAY 4 351 GENERATOR 2 7L 2 351 GENERATOR 3 2L 3 5L BLACK 2 351 IDLE AIR CONTROL MOTOR BLACK 4 WAY 352 INTAKE AIR TEMPERATURE SENSOR 2 71 GRAY 2 352 INTAKE AIR TEMPERATURE MANIFOLD ABSOLUTE PRESSURE SENSOR E ree Be vaca E 352 FUSES onnaa 24 4 2 22 2 2422 22 354 CIRCUIT BREAKERS cis 55 552 5567 354 DAYTIME RUNNING LAMP 2 22 354 DOOR LOCK RELAY 2 2 354 DOOR UNLOCK 2 2 22222222222222 22 2 354 DRIVER DOOR UNLOCK RELAY 2 2 2 355 FOG LAMP RELAY 355 HIGH BEAM HEADLAMP RELAY 355 HORN 22 355 LOW BEAM HEADLAMP 2 355 PARK LAMP RELAY Sous
64. 355 SPARE RELAY aa 355 JUNCTION BLOCK BODY CONTROL MODULE 357 KNOCK SENSOR 2 7L GRAY 2 357 KNOCK SENSOR 3 2L 3 5L BLACK 2 357 LEAK DETECTION PUMP BLACK 4 357 MANIFOLD ABSOLUTE PRESSURE SENSOR 2 71 BLACK 3 WAY 358 MANIFOLD TUNING VALVE BLACK 2 358 OUTPUT SPEED SENSOR DK BLUE 2 WAY 358 OXYGEN SENSOR 1 1 RIGHT BANK UP BLACK 4 358 OXYGEN SENSOR 1 2 RIGHT BANK DOWN BLACK 4 WAY 359 OXYGEN SENSOR 2 1 LEFT BANK UP BLACK 4 359 OXYGEN SENSOR 2 2 LEFT BANK DOWN BLACK 4 WAY 359 361 A C COMPRESSOR CLUTCH 361 AUTOMATIC SHUT DOWN 2 2 2 361 ENGINE STARTER MOTOR RELAY 361 FUEL PUMP 2 22 2 2 361 HEADLAMP WASHER RELAY 361 HIGH SPEED RADIATOR FAN 362 LOW SPEED RADIATOR FAN RELAY 362 REAR FOG LAMP RELAY
65. 4 No GoTo 5 Stop All Actuations If there no possible causes remaining replace the fuel injector View repair options Repair Replace the fuel injector Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 5 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the fuel injector no 5 driver circuit from the fuel injector no 5 electrical connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open fuel injector no 5 driver circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 5 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the fuel injector no 5 driver circuit and ground B 15 the resistance below 5 0 ohms Yes Repair the injector driver circuit for a short to ground Note shorted injector driver circuit may have ruined the injector also Injector resistance should be between 10 and 16 ohms Perform the Powertrain Verification Test Ver 5 No gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 125 DRIVEABILITY 0205 1 CONTR
66. Are there any signals missing Yes gt GoTo 3 No GoTo 6 230 P1391 INTERMITTENT LOSS OF Continued APPLICABILITY Turn ignition off Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Make sure the Camshaft Position Sensor and or the Crankshaft Position Sensor is tight Note Refer to any technical service bulletins that may apply Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 5 gt GoTo 4 Turn ignition off Disconnect and remove the camshaft position sensor Inspect the tone wheel pulse ring for looseness and or physical damage 15 the tone wheel pulse ring free from defects Yes gt GoTo 5 No Repair replace tone wheel pulse ring as necessary If there are possible causes remaining replace the Camshaft Position Sensor All View repair options Repair Replace the Camshaft Position Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off With the DRB lab scope backprobe the CKP signal circuit at the CKP sensor connector using Miller special tool 6801 Werning Keep clear of the engine s moving parts Start the engine Observe the CKP sensor voltage pattern on the lab scope s
67. CIRCUIT SHORTED TO GROUND LDP VACUUM SUPPLY LEAK DETECTION PUMP POWERTRAIN CONTROL MODULE ACTION APPLICABILITY Turn ignition on All With the DRB read the Is the Global Good Trip Counter displayed and equal to zero for P 1494 Yes gt GoTo 2 gt GoTo 7 Turn ignition off Disconnect the vacuum supply hose at the Leak Detection Pump Connect a vacuum gauge to the disconnected vacuum supply hose at the Leak Detection Pump Start the engine and read the vacuum gauge Does the vacuum gauge read at least 13 in H 9 Yes gt GoTo 3 Repair leak or obstruction in vacuum hose as necessary Perform Powertrain Verification Test VER 5 243 DRIVEABILITY P1494 LEAK DETECT PUMP SW OR MECHANICAL FAULT Continued APPLICABILITY Turn ignition off All Disconnect the Leak Detection Pump electrical connector Turn ignition on With the DRB I nputs Outputs read the Leak Detect Pump Sw state While observing the Leak Detect Pump Sw state connect jumper wire between the Fused Switch Output circuit the LDP Switch Sense circuit Did the Leak Detect Pump Sw state change when the jumper was connected Yes Replace the Leak Detection Pump Perform Powertrain Verification Test VER 5A gt GoTo 4 Turn ignition off Disconnect the Leak Detection Pump electrical connector Disconnect the Powertrain Control Module connectors Using an Oh
68. CONTROL NO 2 DRIVER 3 K40 20BR WT IDLE AIR CONTROL NO 3 DRIVER 4 K59 20VT BK IDLE AIR CONTROL NO 4 DRIVER INTAKE AIR TEMPERATURE SENSOR 2 7L GRAY 2 WAY CAV CIRCUIT FUNCTION 1 21 20BK RD INTAKE AIR TEMPERATURE SIGNAL 2 K4 20BK LB SENSOR GROUND INTAKE AIR TEMPERATURE MANIFOLD ABSOLUTE PRESSURE SENSOR 3 2L 3 5L CAV CIRCUIT FUNCTION D K1 20DG RD MAP SENSOR SIGNAL B 21 20BK RD INTAKE AIR TEMPERATURE SIGNAL A K4 18BK LB SENSOR GROUND 20VT WT SUPPLY 352 CONNECTOR PINOUTS JUNCTION BLOCK FRONT DRIVER DOOR UNLOCK RELAY LAMP RELAY LOW DOOR BEAM LOCK HEADLAMP RELAY RELAY R DOOR UNLOCK RELAY HIGH BEAM HEADLAMP RELAY in PARK LAMP RELAY 353 R le i CONNECTOR PINOUTS FUSES CAV CIRCUIT FUNCTION 1 INTERNAL IGNITION SWITCH OUTPUT ST RUN OFF 2 INTERNAL INTERNAL 3 133 20RD FUSED B 4 X12 20RD FUSED IGNITION SWITCH OUTPUT RUN ACC 5 2008 FUSED
69. Close Throttle several times Did the Vacuum drop below 1 0 Yes Test Complete No GoTo 20 221 DRIVEABILITY P1297 NO CHANGE IN MAP FROM START TO RUN Continued APPLICABILITY Turn ignition off All Remove the MAP Sensor and inspect condition of Vacuum Port Inspect condition of Intake Manifold or Throttle Body Vacuum Port Is there restriction or defect in the Vacuum Ports Yes Repair the restricted or defective Vacuum Ports Perform Powertrain Test Verification VER 5A GoTo 21 If there are no potential causes remaining the replace MAP Sensor View repair options Repair Replace the MAP Sensor Perform Powertrain Verification Test VER 5A 222 Symptom P1299 VACUUM LEAK FOUND IAC FULLY SEATED When Monitored and Set Condition P1299 VACUUM LEAK FOUND IAC FULLY SEATED When Monitored With the engine running Set Condition The MAP sensor signal does not correlate to the TPS signal POSSIBLE CAUSES VACUUM LEAK MAP SENSOR DEFECTIVE OUT OF CALIBRATION TPS DEFECTIVE VOLTAGE GREATER THAN 1 5AT REST TPS DEFECTIVE VOLTAGE LESS THAN 3 4AT WIDE OPEN THROTTLE ACTION APPLICABILITY Note A large vacuum leak is the most likely cause of this DTC Inspect the Intake Manifold for vacuum leaks Inspect the Power Brake Booster for any vacuum leaks Inspect the PCV system for proper operation or any vacuum leaks Were any problems found
70. Connector Is the voltage above 6 0 volts Yes Repair the Speed Control Switch Signal Circuit for a short to voltage Perform the Powertrain Verification Test Ver 4 GoTo 26 Turn ignition off SPEED CONTROL Disconnect the Clockspring connector instrument panel harness side Disconnect the PCM Note Check connectors Clean repair as necessary Using Ohmmeter measure the resistance of the S C Switch Signal Circuit from the PCM to the Clockspring Connector Is the resistance below 5 0 ohms Yes gt GoTo 27 No open Speed Control Switch Signal Circuit PCM to Clock spring Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the Clockspring Connector Disconnect the On Off switch 2 way connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the S C Switch Signal Circuit from the clockspring to the On Off switch connector Is the resistance below 5 0 ohms Yes gt GoTo 28 No Replace the Clockspring Perform the Powertrain Verification Test Ver 4 If there no possible causes remaining replace the Powertrain Control Module SPEED CONTROL View repair options Repair Replace Powertrain Control Module Perform the Powertrain Verification Test Ver 4 293 SPEED CONTROL CHECKING SPEED CONTROL OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Ign
71. Control Switch and Servo functions appear to operate SPEED CONTROL properly Using the DRB monitor the Speed Control OUTPUT status Road test the Vehicle at speeds over 35 MPH 55kmh and attempt to set the Speed Control The following items will not allow the Speed Control to set The last or most recent cause for Speed Control not to set is indicated by the DENIED status If ON OFF Denied messageis indicated the Powertrain Control M odule does not see an ON signal from the Switch If SPEED Denied message 15 indicated the Vehicle Speed as seen the Powertrain Control Module is not greater than 36 MPH If RPM Denied message is indicated the Engine RPM is excessively high If BRAKE Denied message is indicated the Brake Switch Sense Circuit is open indicating to the PCM that the Brakes are applied The Sense Circuit is grounded through the Brake Pedal Switch when the brakes are released If P N Denied message is indicated Park Neutral Switch Sense Circuit is grounded indicating to PCM that Transmission is not in gear The Sense Circuit is grounded through the P N Switch when Transmission is in Park or Neutral If RPM SPD Denied message is indicated the PCM senses excessive Engine RPM for a given Vehicle speed If SOL FLT Denied message is indicated the Powertrain Control Module senses a Servo Solenoid Circuit trouble code that is maturing or set in memory Continue if the previous instructions have been completed Repair Tes
72. DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 3 K127 18BK OR OXYGEN SENSOR GROUND 4 K41 20BK DG OXYGEN SENSOR 1 1 SIGNAL 358 CONNECTOR PINOUTS 9 OXYGEN SENSOR 1 2 RIGHT BANK DOWN BLACK 4 WAY m CAV CIRCUIT FUNCTION 3 _ 4 1 71 18 GROUND 2 F142 180R DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT OXYGEN SENSOR 3 4 18BK LB SENSOR GROUND 4 2 RIGHT BANK 4 K141 20TN WT OXYGEN SENSOR 1 2 SIGNAL DOWN OXYGEN SENSOR 2 1 LEFT BANK UP BLACK 4 WAY CAV CIRCUIT FUNCTION 1 Z1 18BK GROUND 2 F142 180R DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 3 K127 18BK OR OXYGEN SENSOR GROUND OXYGEN SENSOR 4 K241 20LG RD OXYGEN SENSOR 2 1 SIGNAL 2 LEFT BANK UP N N 3 R OXYGEN SENSOR 2 2 LEFT BANK DOWN BLACK 4 WAY P CAV CIRCUIT FUNCTION l 1 71 18 GROUND N 2 F142 180R DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 3 4 18BK LB SENSOR GROUND OXYGEN SENSOR 4 K341 20PK WT OXYGEN SENSOR 2 2 SIGNAL U 2 2 LEFT T BANK DOWN S 359 CONNECTOR PINOUTS AUTOMATIC SHUT DOWN RELAY LOW SPEED RADIATOR FAN RELAY WIPER HIGH LOW RELAY R COMPRESSOR CLUTCH RELAY ENGINE STARTER MOTOR RELAY 4 2 TRANSMISSION CONTROL RELAY WIPER ON OFF RELAY FUEL PUMP RELAY POWER DISTRIBUTION CENTER
73. Disconnect the SKIM connector All Turn Ignition on Using a voltmeter measure the Fused Ignition Switch output voltage at the SKIM connector 15 the Fused Switch voltage above 10 0 volts Yes gt GoTo 4 No Repair the open Fused Ignition Switch Output circuit 47 COMMUNICATION BUS SIGNAL OPEN FROM SKIM Continued ACTION APPLICABILITY Disconnect the Sentry Key Immobilizer Module All Connect the DRB III to the Data Link connector Use Scope input cable CH 7058 Cable to Probe adapter CH 7062 and the red and black test probes Connect the scope input cable to the channel one connector the 111 Attach the red and black leads and the cable to probe adapter to the scope input cable Select DRB Standalone Select lab scope Select Live Select 12 volt square wave Press F2 for Scope Press F2 and use the down arrow to set voltage range to 20 volts Press F2 again when complete Connect the Black lead to the SKIM ground Connect the Red lead to the SKIM Bus circuit Turn the ignition on Observe the voltage displayed on the III Lab Scope What is the voltage displayed on the scope Pulse from 0 to approximately 7 5 volts Replace the Sentry Key Immobilizer Module Perform the SKIS Verification Test Steady 0 0 volt Repair the Open PCI BUS circuit to the SKIM Perform the SKIS Verification Test 48 COMMUNICATION Symptom NO RESPONSE FROM PCM PCI BUS POSSIBL
74. Driver Circuit at the Generator to Ground 15 the resistance below 5 0 ohms Yes Repair or replace the shorted Generator as necessary Perform the Powertrain Verification Test Ver 3 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 3 23 CHARGING Symptom P1682 CHARGING SYSTEM VOLTAGE TOO LOW When Monitored and Set Condition P1682 CHARGING SYSTEM VOLTAGE TOO LOW When Monitored With the ignition key the engine running over 1152 RPM With no other charging system codes set Set Condition The battery sensed voltage is 1 volt below the charging goal for 25 seconds The PCM senses the battery Voltage turns off the field driver and senses the battery voltage again If the voltages are the same the code is set POSSIBLE CAUSES CIRCUIT HIGH RESISTANCE GENERATOR GROUND HIGH RESISTANCE ASD RELAY OUTPUT CIRCUIT OPEN ASD RELAY OUTPUT CIRCUIT SHORTED TO GROUND GENERATOR FIELD DRIVER CIRCUIT OPEN GENERATOR FIELD DRIVER CIRCUIT SHORTED TO GROUND PCM PCM DEF CHARGING SYSTEM VOLTAGE LOW APPLICABILITY Turn Ignition Off All Note Battery must be fully charged Note Generator Belt tension and condition must be checked before con tinuing Start Engine With the DRB read the target charging voltage 15 the target char
75. HIGH RESISTANCE TO GROUND MAP SENSOR SIGNAL CIRCUIT OPEN MAP SENSOR PCM PCM DEFECTIVE ACTION APPLICABILITY Turn Ignition On All With the read the DTC s 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 GoTo 12 Turn ignition on With the DRB read the MAP Sensor Voltage Is the voltage below 2 2 volts Yes gt GoTo 3 GoTo 12 59 DRIVEABILITY 0106 PRESSURE OUT OF RANGE Continued APPLICABILITY Turn the ignition off All Disconnect the MAP Sensor Connector Turn ignition on With the DRB monitor the MAP Sensor Voltage Cycle the ignition switch from off to on 15 the voltage above 4 9 volts Yes gt GoTo 4 No GoTo 8 Turn ignition on Disconnect the MAP Sensor Connector With a voltmeter measure the 5 Volt Supply at the MAP Sensor Connector Is the voltage above 4 0 volts Yes Replace the MAP Sensor Perform Powertrain Verification Test VER 5A No gt GoTo 5 Turn the ignition off Disconnect the MAP Sensor harness connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary Measure the resistance of the MAP Sensor 5 Volt Supply Circuit from the MAP Sensor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open 5 Volt Supply Circuit Perform the Powertrain Verification Test V
76. HIGH SPEED RADIATOR RELAY CONTROL Fi8 20LG BK FUSED IGNITION SWITCH OUTPUT ST RUN LOW SPEED RADIATOR FAN RELAY CAV CIRCUIT FUNCTION E 6 12GY FUSED D C23 1206 LOW SPEED RADIATOR FAN RELAY OUTPUT 24 20DB PK LOW SPEED RADIATOR RELAY CONTROL Fi8 20LG BK FUSED IGNITION SWITCH OUTPUT ST RUN REAR FOG LAMP RELAY BUILT UP EXPORT CAV CIRCUIT FUNCTION A35 1808 FUSED B 5 18DB FUSED B 196 18LG RD REAR FOG LAMP SWITCH GROUND D 195 18DG YL FOG LAMP RELAY OUTPUT E TRANSMISSION CONTROL RELAY CAV CIRCUIT FUNCTION E a 18RD LB FUSED B 115 20LG TRANSMISSION RELAY CONTROL D 16 16RD TRANSMISSION CONTROL RELAY OUTPUT Zt 20BK GROUND WIPER HIGH LOW RELAY CAV CIRCUIT FUNCTION A 14RD OR FUSED 16 20VT WIPER HIGH LOW RELAY CONTROL V3 14BR WT D 4 14RD YL WIPER HIGH LOW RELAY HIGH SPEED OUTPUT B 1206 WIPER RELAY COMMON WIPER ON OFF RELAY CAV CIRCUIT FUNCTION D A5 12RD OR FUSED 14RD OR FUSED B C 14 20RD VT WIPER ON OFF RELAY CONTROL 1206 WIPER RELAY COMMON 7114 GROUND 362 CONNECTOR PINOUTS POWER STEERING PRESSURE SWITCH GRAY 2 WAY CAV CIRCUIT FUNCTION 2 K10 18DB LG POWER STEERING PRESSURE SWITCH PSPS SIGNAL POWER STEERING PRESSURE SWITCH POW
77. IGNITION SWITCH OUTPUT RUN ACC 6 F30 18RD FUSED B NITION POSI TION 6 F30 18RD FUSED BAT TERY POSI TION 7 INTERNAL INTERNAL 8 F23 18DB YL FUSED IGNITION SWITCH OUTPUT RUN 9 15 22BK YL FUSED IGNITION SWITCH OUTPUT RUN ACC 10 144 20VT RD FUSED RIGHT LOW BEAM OUTPUT 11 140 20BR WT FUSED LOW BEAM RELAY OUTPUT 12 INTERNAL NTERNAL 13 Fi2 20DB WT FUSED IGNITION SWITCH OUTPUT ST RUN 14 INTERNAL NTERNAL 15 INTERNAL NTERNAL 16 INTERNAL NTERNAL 17 INTERNAL NTERNAL 18 INTERNAL NTERNAL 19 INTERNAL NTERNAL 20 2 16PK DB FUSED B 21 INTERNAL NTERNAL 22 214 18LG YL FUSED IGNITION SWITCH OUTPUT ST RUN 23 Ct 12DG FUSED IGNITION SWITCH OUTPUT RUN CIRCUIT BREAKERS CAV CIRCUIT FUNCTION 1 14 INTERNAL 2 INTERNAL INTERNAL DAYTIME RUNNING LAMP MODULE CAV CIRCUIT FUNCTION 1 71 GROUND 2 INTERNAL FUSED B 3 INTERNAL LOW BEAM RELAY OUTPUT 4 INTERNAL FUSED IGNITION SWITCH OUTPUT RUN 5 09 20GY BK PARK BRAKE SENSE 6 INTERNAL FUSED HIGH BEAM RELAY OUTPUT DOOR LOCK RELAY CAV CIRCUIT FUNCTION 81 INTERNAL LOCK RELAY OUTPUT 82 INTERNAL FUSED B 83 INTERNAL FUSED B 84 INTERNAL GROUND 85 INTERNAL DOOR LOCK RELAY CONTROL DOOR UNLOCK RELAY CAV CIRCUIT FUNCTION 76 INTERNAL UNLOCK RELAY OUTPUT 77 INTERNAL FUSED B 78 INTERNAL FUSED B 79 INTERNAL GROUND 80 INTERNAL DOOR UNLOCK RELAY CONTROL 354 DRIVER DOOR
78. Ignition On All With the DRB read the 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 gt GoTo 9 Turn ignition off Disconnect the Throttle Position Sensor Connector Turn ignition on With a Voltmeter measure the 5 Volt Supply Circuit at the Throttle Positon Sensor Connector Is the Voltage below 4 5 Volts Yes gt GoTo 3 No gt GoTo 8 247 1496 5 VOLT SUPPLY OUTPUT TOO LOW Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the TPS harness connector Turn the ignition on Connect a Voltmeter to the 5 Volt Supply Circuit at the Throttle Position Sensor Connector Record Voltage Reading Turn the ignition off Disconnect the EGR Solenoid harness connector Turn the ignition on Read and record the 5 Volt Supply Circuit voltage at the Throttle Position Sensor Connector Did the 5 Volt Supply go from below 4 5 volts to above 4 5 volts when the EGR was disconnected Yes Replace the EGR Solenoid Perform the Powertrain Verification Test Ver 5 No gt GoTo 4 Turn the ignition off Disconnect the TPS harness connector Turn the ignition on Connect a Voltmeter to the 5 Volt Supply Circuit at the Throttle Position Sensor Connector Record Voltage Reading Turn the ignition off Disconnect the A C Pressure Sensor harness connector Turn the ignition on Read and record the 5 Volt Supply Circuit
79. Keep clear of the engine s moving parts Start the engine Observe the lab scope screen while wiggling the wiring harness and connectors Were there any irregularities in the lab scope pattern Yes Check harness and connectors carefully If OK replace the Crankshaft Position Sensor Perform the Powertrain Verification Test Ver 5 GoTo 25 139 20 CRANK REFERENCE SIGNAL Continued APPLICABILITY Turn ignition off All Connect the DRBIII lab scope to the CMP signal circuit For best results backprobe at the PCM using Miller special tool 6801 While observing the lab scope screen turn ignition on do not start engine Look for any pulses generated by the cam sensor Did the Camshaft Position Sensor generate any pulses Yes Replace the Camshaft Position Sensor Perform the Powertrain Verification Test Ver 5 No Test Complete 140 Symptom 0325 SENSOR 1 CIRCUIT When Monitored and Set Condition 25 SENSOR 1 CIRCUIT When Monitored With the ignition on and the engine running Set Condition The knock sensor circuit voltage falls below a minimum value at idle or deceleration The minimum value is from a look up table internal to the PCM and is based on engine rpm DTC also sets if sensor output goes above 5 0 volts POSSIBLE CAUSES WIRING HARNESS INTERMITTENT KNOCK SENSOR RETURN OP
80. L WHITE cor BODY CONTROL MODULE 3 BLUE 256525052585 BODY CONTROL MODULE 4 BODY CONTROL MODULE C2 BLACK 24 WAY CAV CIRCUIT FUNCTION 1 C36 22RD WT BLEND DOOR FEEDBACK SIGNAL 2 052 20YL HEADLAMP SWITCH MUX 3 4 5 C9 22YL DG ASPIRATOR MOTOR DRIVER 6 C56 22RD LG BLOWER MOTOR CONTROL 7 V10 20BR FRONT WASHER PUMP MOTOR CONTROL 8 V52 20DG RD FRONT WIPER MUX SWITCH SIGNAL 9 C37 22YL WT MODE DOOR FEEDBACK SIGNAL 10 C38 20DB SUN SENSOR SIGNAL 11 12 C82 20YL OR TEMPERATURE SELECT SIGNAL 13 E17 20YL BK DAY BRIGHTNESS SENSE MTC 14 C48 20VT PK A C LED INDICATOR SIGNAL 15 C26 22PK DB 5V SUPPLY 16 17 18 19 L80 20WT HEADLAMP SWITCH RETURN 20 C12 22LG BK EVAPORATOR TEMPERATURE SENSOR SIGNAL 21 E19 20RD PANEL LAMPS DIMMER SIGNAL 22 10 22RD TN IN CAR TEMPERATURE SENSOR SIGNAL ATC 22 58 22RD TN A C MODE SWITCH MUX MTC 23 G69 22BK OR VTSS INDICATOR DRIVER 24 026 22LB KEY IN IGNITION SWITCH SENSE BODY CONTROL MODULE C3 WHITE 12 WAY CAV CIRCUIT FUNCTION 1 025 20VT YL PCI BUS MHS MM 2 D25 20 VT YL BUS CAB 3 V55 20TN RD WIPER PARK SWITCH
81. Monitored At ignition key on and the engine running Set Condition Not powering down not in limp in and time since last solenoid activation is greater than 72 micro seconds The PCM will set a trouble code if the actual state of the solenoid does not match the intended state POSSIBLE CAUSES WIRING HARNESS INTERMITTENT PWM PURGE SENSE CKT OPEN PROPORTIONAL PURGE SOLENOID CONTROL CKT OPEN PCM PROPORTIONAL PURGE SOLENOID CONTROL CKT SHORTED TO GROUND PWM PURGE SENSE CKT SHORTED TO GROUND PROPORTIONAL PURGE SOLENOID ACTION APPLICABILITY Turn ignition on All With the DRB read the DTC s 15 the Global Good Trip Counter displayed and equal to zero for P 0443 Yes gt GoTo 2 No GoTo 8 Turn ignition off Disconnect the Proportional Purge Solenoid electrical connector Disconnect the Powertrain Control Module harness connector Using an Ohmmeter measure the resistance of the PWM Purge Sense circuit from the Proportional Purge Solenoid connector to the PCM connector Is the resistance below 5 0 Ohms Yes gt GoTo 3 No Repair the open PWM Purge Sense circuit Perform Powertrain Verification Test VER 5A Turn ignition off Disconnect the Proportional Purge Solenoid electrical connector Using an Ohmmeter measure the resistance of the Proportional Purge Solenoid 15 the resistance between 13 0 15 0 Ohms Yes gt GoTo 4 No Replace the Proportional Purge Solenoid Perform Powertrain Verification Test V
82. Note 2 7L engines require the use of Miller Tool 6539 adapter installed in line to the fuel supply line Disconnect the fuel supply line at the fuel rail connection install tool 6539 then connect a fuel pressure gauge to tool 6539 Note 3 2L 3 5L engines have a pressure test port on the fuel rail Remove the pressure test port cap at the fuel rail test port Connect a fuel pressure gauge to the test port pressure fitting on the fuel rail Ignition on With the DRB actuate the ASD Fuel System test and observe the fuel pressure gauge Note Fuel pressure specification is 406 KPa 34 KPa 59 psi 5 psi Choose a conclusion that best matches your fuel pressure reading Below Specification GoTo 2 Within Specification GoTo 7 Above Specification Replace the fuel filter pressure regulator Caution Stop All Actuations 255 DRIVEABILITY CHECKING FUEL DELIVERY Continued ACTION APPLICABILITY Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Turn ignition on With the DRB actuate the ASD Fuel System test Using a 12 volt test light connected to ground check the fuel pump relay output circuit A141 at connector C308 Does the test light illuminate brightly Yes gt GoT
83. POSSIBLE CAUSES FOR START amp STALL HIGH RESISTANCE IN THE FUEL PUMP RELAY OUTPUT CIRCUIT FUEL PUMP INLET STRAINER PLUGGED TPS VOLTAGE CHANGE NOT SMOOTH TPS VOLTAGE GREATER THAN 0 92 VOLTS WITH THROTTLE CLOSED HIGH RESISTANCE IN THE FUEL PUMP GROUND CIRCUIT FUEL PUMP MODULE KINKED RESTRICTED FUEL SUPPLY LINE ECT SENSOR OUT OF CALIBRATION ACTION APPLICABILITY Turn ignition off All Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Note 2 7L engines require the use of Miller Tool 6539 adapter installed in line to the fuel supply line Disconnect the fuel supply line at the fuel rail connection install tool 6539 then connect a fuel pressure gauge to tool 6539 Note 3 2L 3 5L engines have a pressure test port on the fuel rail Remove the pressure test port cap at the fuel rail test port Connect a fuel pressure gauge to the test port pressure fitting on the fuel rail Ignition on With the DRB actuate the ASD Fuel System test and observe the fuel pressure gauge Note Fuel pressure specification is 406 KPa 34 KPa 59 psi 5 psi Choose a conclusion that best matches your fuel pressure reading Below Specification GoTo 2 Within Specification GoTo 12 Above Specification Replace the fuel filter pressure regulator Caution Stop All Actuations 311 STARTING START A
84. POWER SUPPLY 4 V30 20DB RD SPEED CONTROL BRAKE SWITCH OUTPUT 5 150 16WT TN BRAKE LAMP SWITCH OUTPUT 6 F32 16PK DB FUSED B C308 NATURAL BODY SIDE CAV CIRCUIT 1 2 G4 14DB 3 K106 18 WT DG 4 5 6 107 200R RD 7 141 12DG WT 8 71 12 9 F18 20LG BK 10 C308 NATURAL FUEL TANK JUMPER SIDE CAV CIRCUIT 1 2 G4 20DB 3 K106 18WT DG 4 5 6 107 200R RD 7 141 12DG WT 8 71 12 9 F18 20LG BK 10 CAMSHAFT POSITION SENSOR BLACK 3 WAY CAV CIRCUIT FUNCTION 1 K7 200R 8V SUPPLY 2 K4 20BK LB SENSOR GROUND K44 20TN YL CAMSHAFT POSITION SENSOR 345 R in 2 CONNECTOR PINOUTS NATURAL CLOCKSPRING NO 1 gt 4 CLOCKSPRING NO 2 R COIL ON PLUG NO 1 le 2 COIL ON PLUG NO 2 CLOCKSPRING 1 NATURAL 5 WAY CAV CIRCUIT FUNCTION 1 V37 20RD LG SPEED CONTROL SWITCH SIGNAL 2 K4 20BK LB SENSOR GROUND 3 16 HORN RELAY CONTROL 4 5 CLOCKSPRING NO 2 YELLOW 2 WAY CAV CIRCUIT FUNCTION 1 R43 18BK LB DRIVER SQUIB NO 1 LINE 2 2 R45 18DG LB DRIVER SQUIB NO 1 LINE 1 COIL ON PLUG NO 1 BLACK 2 WAY CAV CIRCUIT FUNCTION 1 F42 16DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 2 91 16TN RD COIL D
85. PRESSURE SWITCH SENSE 2 ENGINE OIL PRESSURE SWITCH R EVAP PURGE SOLENOID BLACK 2 WAY CAV CIRCUIT FUNCTION 1 K52 18PK BK EVAPORATIVE EMISSION SOLENOID CONTROL 2 K108 18DG LG EVAPORATIVE SOLENOID SENSE EVAP PURGE SOLENOID ia E 2 FUEL INJECTOR NO 1 BLACK 2 WAY CAV CIRCUIT FUNCTION 1 K11 18WT DB FUEL INJECTOR NO 1 DRIVER 2 F42 18DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT FUEL INJECTOR N 1 349 R ie i CONNECTOR PINOUTS FUEL INJECTOR NO 2 FUEL INJECTOR NO 3 FUEL INJECTOR NO 4 FUEL INJECTOR NO 5 FUEL INJECTOR NO 2 BLACK 2 WAY CAV CIRCUIT FUNCTION 1 K12 18TN WT FUEL INJECTOR NO 2 DRIVER 2 F42 18DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT FUEL INJECTOR NO 3 BLACK 2 WAY CAV CIRCUIT FUNCTION 1 K13 18YL WT FUEL INJECTOR NO 3 DRIVER 2 F42 18DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT FUEL INJECTOR NO 4 BLACK 2 WAY CAV CIRCUIT FUNCTION 1 K14 18LB BR FUEL INJECTOR NO 4 DRIVER 2 F42 18DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT FUEL INJECTOR NO 5 BLACK 2 WAY CAV CIRCUIT FUNCTION 1 K38 18GY FUEL INJECTOR NO 5 DRIVER F42 18DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 350
86. Powertrain Control Module connectors Note Check connectors Clean repair as necessary Note The following steps are checking for a short between the IAC Driver Circuits Using an Ohmmeter measure the resistance between the 1 Driver circuit and 2 8 4 Driver circuits 15 the resistance below 5 0 ohms on any of the Drivers Yes Repair Driver Circuits shorted together Perform the Powertrain Verification Test Ver 5 No gt GoTo 7 198 P0505 IDLE AIR CONTROL MOTOR CIRCUITS Continued ACTION APPLICABILITY Ignition Off All Disconnect the IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Note The following steps are checking for a short between the IAC Driver Circuits Using Ohmmeter measure the resistance between the IAC 2 Driver circuit 8 4 Driver circuits 15 the resistance below 5 0 ohms on any of the Drivers Yes Repair the IAC Driver Circuits shorted together Perform the Powertrain Verification Test Ver 5 No GoTo 8 Ignition Off Disconnect Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Note The following steps are checking for a short between the Driver Circuits Using an Ohmmeter measure the resistance between the IAC 8 Driver circuit and 4 Driver circuit Is the re
87. Powertrain Verification Test Ver 5 No gt GoTo 7 If there no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition on With a Voltmeter measure the 5 Volt Supply Circuit at the MAP Sensor Connector 15 the Voltage below 4 5 Volts Yes Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 No gt GoTo 9 Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete Note The Throttle Position Sensor Connector must be connected during All this test Disconnect the MAP Sensor Connector 249 DRIVEABILITY Symptom CHECKING BRAKE SWITCH OPERATION WITH NO DTC S POSSIBLE CAUSES DRB DOES NOT SHOW BRAKE SW PRESSED OR RELEASED BRAKE LAMP SWITCH OUTPUT LESS THAN 10 0 VOLTS FUSED B CIRCUIT OPEN S C BR SW OUTPUT LESS THAN 10V AT BRAKE SWITCH TEST ACTION APPLICABILITY Ignition on with engine not running All With
88. SENSE 4 V14 20RD VT WIPER ON OFF RELAY CONTROL 5 631 20VT LG AMBIENT TEMPERATURE SENSOR SIGNAL 6 z 7 D25 20VT YL PCI BUS TCM 8 9 V58 14BR YL HEADLAMP WASHER RELAY CONTROL 10 C57 20DB GY SENSOR GROUND 11 12 V16 20 WIPER HIGH LOW RELAY CONTROL BODY CONTROL MODULE C4 BLUE 16 WAY CAV CIRCUIT FUNCTION 1 G74 20TN RD DOOR AJAR SWITCH SENSE LR 2 G74 20TN RD DOOR AJAR SWITCH SENSE PASS 3 G72 20DG OR PASSENGER DOOR KEY CYLINDER SWITCH SENSE 4 G75 20 DRIVER DOOR AJAR SWITCH SENSE 5 P97 20WT DG DRIVER DOOR MUX SWITCH 6 7 G4 2008 FUEL LEVEL SENSOR SIGNAL 8 671 18VT WT DECKLID SECURITY SWITCH SENSE 9 D25 20VT YL PCI BUS PCM 10 G74 20TN RD DOOR AJAR SWITCH SENSE RR 11 12 P96 20WT LG PASSENGER DOOR MUX SWITCH 13 G73 20LG OR DRIVER DOOR KEY CYLINDER SWITCH SENSE 14 C80 20DB WT REAR WINDOW DEFOGGER RELAY CONTROL 15 G10 20LG RD SEAT BELT SWITCH SENSE 16 344 s GRAY BRAKE LAMP SWITCH NATURAL 2509 96 26 24 26 10 C308 s NATURAL CAMSHAFT POSITION SENSOR CONNECTOR PINOUTS BRAKE LAMP SWITCH GRAY 6 WAY CAV CIRCUIT FUNCTION 1 K29 29WT PK BRAKE SWITCH SENSE 2 Z2 18BK LG GROUND 3 V32 20YL RD SPEED CONTROL
89. SENSOR 3 21 3 51 BLACK 2 WAY T CAV CIRCUIT FUNCTION 6 1 45 20BK VT KNOCK SENSOR RETURN KNOCK SENSOR 2 K42 20DB LG KNOCK SENSOR SIGNAL 3 2L 3 5L BLACK ra LEAK DETECTION PUMP BLACK 4 WAY CAV CIRCUIT FUNCTION 1 2 F18 20LG BK FUSED IGNITION SWITCH OUTPUT ST RUN 4 1 3 106 18WT DG LEAK DETECTION PUMP SOLENOID CONTROL 4 K107 200R RD LEAK DETECTION PUMP SWITCH SENSE LEAK DETECTION PUMP 357 CONNECTOR PINOUTS s BLACK MANIFOLD ABSOLUTE PRESSURE SENSOR 2 7L y BLACK 5 MANIFOLD TUNING VALVE R 2 1 SPEED SENSOR 4 2 OXYGEN SENSOR RIGHT BANK UP MANIFOLD ABSOLUTE PRESSURE SENSOR 2 7L BLACK 3 WAY CAV CIRCUIT FUNCTION K1 20DG RD MAP SENSOR SIGNAL A K4 18BK LB SENSOR GROUND B K6 20VT WT 5V SUPPLY MANIFOLD TUNING VALVE BLACK 2 WAY CAV CIRCUIT FUNCTION 1 K36 18VT RD MANIFOLD SOLENOID CONTROL 2 F42 18DG LG AUTOMATIC SHUT DOWN RELAY OUTPUT OUTPUT SPEED SENSOR DK BLUE 2 WAY CAV CIRCUIT FUNCTION 1 13 20DB BK SPEED SENSOR GROUND 2 T14 20LG WT OUTPUT SPEED SENSOR SIGNAL OXYGEN SENSOR 1 1 RIGHT BANK UP BLACK 4 WAY CAV CIRCUIT FUNCTION 1 71 18BK GROUND 2 F142 180R
90. System Two Trip Faults Turns On The MIL and Sets DTC After Two Consecutive Failures Priority 2 or 4 Fuel Control Monitor Monitors Fuel Control System For Fuel System Lean Fuel System Rich Requires 3 Consecutive Fuel System Good Trips To Extinguish The MIL Misfire Monitor Monitors For Engine Misfire at 1000 RPM Counter Type B 200 RPM Counter Type A Requires 3 Consecutive Misfire Good Trips To Extinguish the MIL Type A misfire is a one trip failure The MIL will illuminate and blink at the first failure GENERAL INFORMATION 3 2 3 OTHER CONTROLS CHARGING SYSTEM The charging system is turned on when the engine is started and ASD relay energized When theASD relay is on ASD output voltage is supplied totheASD sense circuit at the PCM This voltage 15 connected in some cases through the PCM and supplied to one of the generator field terminals Gen Source All others the Gen field is con nected directly to the ASD output voltage The amount of current produced by the generator is controlled by the Electronic Voltage Regulator EVR circuitry in the PCM battery temperature sensor located either in the battery tray using the ambient sensor or in the PCM itself is used to sense battery temperature This temperature along with sensed line voltage is used by the PCM to vary the battery charging rate This is done by cycling the ground path to the other generator field termi nal Gen fiel
91. TEMPERATURE SENSOR 2 GRAY eS timi eS BODY CONTROL MODULE 1 CONNECTOR PINOUTS A C COMPRESSOR CLUTCH BLACK 2 WAY CAV CIRCUIT FUNCTION 1 C2 14DB BK A C COMPRESSOR CLUTCH RELAY OUTPUT 2 21 14BK GROUND A C PRESSURE TRANSDUCER GRAY 4 WAY CAV CIRCUIT FUNCTION 1 K4 20BK LB SENSOR GROUND 2 K6 20VT WT 5V SUPPLY 3 C18 20DB A C PRESSURE SIGNAL 4 AMBIENT TEMPERATURE SENSOR 2 WAY CAV CIRCUIT FUNCTION 1 631 20VT LG AMBIENT TEMPERATURE SENSOR SIGNAL 2 C57 20DB GY SENSOR GROUND BODY CONTROL MODULE C1 GRAY 14 WAY CAV CIRCUIT FUNCTION 1 P1 20BK WT DECKLID RELEASE SWITCH OUTPUT 2 C32 22GY DB RECIRCULATION DOOR DRIVER 3 C33 22DB RD BLEND AIR DOOR DRIVER 4 D25 20VT YL PCI BUS ATC 5 D25 20VT YL PCI BUS RADIO 6 7 025 18VT YL PCI BUS ORC 8 C57 20DB GY SENSOR GROUND 9 C35 22DG YL MODE DOOR DRIVER 10 C34 22BR WT COMMON DOOR DRIVER 11 C59 20VT LG FAN OFF SWITCH SIGNAL 12 D25 20VT YL PCI BUS SKIM 13 D25 20VT YL PCI BUS MIC 14 D25 20VT YL PCI BUS DLC 343 R 4 2 CONNECTOR PINOUTS BLACK 8 R ie BODY CONTROL MODULE 2
92. TPS HARNESS CONNECTORS OBSERVABLE E TPS VOLTAGE GREATER THAN 0 92 VOLTS WITH THROTTLE CLOSED ACTION APPLICABILITY Engine Running Warning KEEP CLEAR OF THE ENGINE S MOVING PARTS Wiggle the Throttle Position Sensor Connectors and Harness Monitor engine RPM Was there any change engine RPM when wiggled Yes gt Repair the Harness or Connector that caused the engine RPM to change Perform Powertrain Verification Test VER 5 GoTo 2 Ignition On Engine Not Running With the DRB read TP Sensor voltage Wiggle the Throttle Position Sensor Connectors and Harness Monitor the DRB display Was there any change in Throttle Position Sensor voltage when wiggled Yes the Harness or Connector that caused the voltage change Perform Powertrain Verification Test VER 5 No gt GoTo 4 Ignition Off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes Repair as necessary Perform Powertrain Verification Test VER 5 No gt GoTo 5 Ignition On Engine Not Running All With the DRBIII read the TPS voltage While monitoring the DRBIII slowly open and close the Throttle 15 the voltage change smooth Yes gt GoTo 3 No Replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 268 DRIVEABILITY CHECKING THROTTLE POSITION SENSOR OPERATION WITH NO DTC S Continued ACTION APPLICABILITY Ignition On Engine Not Run
93. Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform wiggletest of the injector wiring whilethe engineis running Listen for the engine to miss or stall Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 123 DRIVEABILITY Symptom 0205 1 5 CONTROL CIRCUIT When Monitored and Set Condition P0205 I NJ 5 CONTROL CIRCUIT When Monitored With battery voltage greater than 10 4 volts the auto shutdown relay energized injector pulse width less than 10ms and engine speed less than 3000 rpm Set Condition This trouble code takes 64 to 10 0 seconds to set when no inductive kick is sensed 18ms after injector turn off and with no other injectors on POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT FUEL INJ ECTOR WIRING HARNESS INTERMITTENT FUEL INJ ECTOR NO 5 DRIVER CIRCUIT OPEN FUEL INJ ECTOR NO 5 DRIVER CIRCUIT S
94. Ver 3 Turn ignition off All Disconnect the PCM harness connectors Disconnect the Generator Field harness connector Note Check Connectors Clean repair as necessary Using an Ohmmeter measure the Generator Field Driver Circuit from PCM to Generator 15 the resistance below 5 0 ohms Yes gt GoTo 7 No the open Generator Field Driver Circuit Perform the Powertrain Verification Test Ver 3 17 CHARGING Symptom P1478 BATTERY TEMP SENSOR VOLTS OUT OF LIMIT EEE When Monitored and Set Condition P1478 BATTERY TEMP SENSOR VOLTS OUT OF LIMIT When Monitored Ignition on Set Condition The Battery Temperature Sensor internal to the PCM goes above 4 9 volts or below 0 1 volt for more than 3 2 seconds POSSIBLE CAUSES PCM DEFECTIVE ACTION APPLICABILITY The Powertrain Control Module is reporting an internal trouble code and must be All replaced View repair options Repair Replace the Powertrain Control Module CHARGING Symptom List P1492 AMBIENT BATT TEMP SEN VOLTS TOO HIGH 1493 TEMP SEN VOLTS TOO LOW Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be P1492 AMBIENT BATT TEMP SEN VOLTS TOO HIGH When Monitored and Set Condition P1492 AMBIENT BATT TEMP SEN VOLTS TOO HIGH When Monitored With the ignition key on the Body Control Module BCM transmits temperature data to the PCM th
95. and the speed control switched on Set Condition Thespeed control power supply circuit is either open or shorted to ground POSSIBLE CAUSES GROUND CIRCUIT AT S C SERVO CONNECTOR OPEN S C WIRING HARNESS INTERMITTENT PROBLEM S C VAC SOL AC S C VACUUM SOLENOID CONTROL CIRCUIT OPEN S C VACUUM SOLENOID CONTROL CKT SHORT TO GROUND S C VENT SOLENOID CONTROL CIRCUIT OPEN S C VENT SOLENOID CONTROL CKT SHORT TO GROUND S C WIRING HARNESS INTERMITTENT PROBLEM S C VENT SOL AC S C WIRING HARNESS OBSERVABLE PROBLEM S C POWER SUPPLY CIRCUIT OPEN S C POWER SUPPLY CIRCUIT SHORTED TO GROUND S C SERVO 12V DRIVER CIRCUIT S C SERVO 12V DRIVER CIRCUIT BRAKE SWITCH BRAKE SWITCH OUT OF ADJ USTMENT S C BRAKE SWITCH OUTPUT CIRCUIT OPEN S C BRAKE SWITCH OUTPUT CIRCUIT SHORTED TO GROUND PCM DEFECTIVE 278 SPEED CONTROL P1595 SPEED CONTROL SOLENOID CIRCUITS Continued POSSIBLE CAUSES PCM DEFECTIVE 12V DRIVER CIRCUIT PCM DEFEFECTIVE ACTION APPLICABILITY Ignition On Engine Not Running SPEED CONTROL With the DRB actuate the S C Vent Solenoid Does the Speed Control Servo click Yes gt GoTo 2 No GoTo 13 Ignition On Engine Not Running SPEED CONTROL With the DRB actuate the S C Vacuum Solenoid Does the Speed Control Servo click Yes gt GoTo 3 No GoTo 6 Turn ignition off SPEED CONTROL Using the Schematics as a guide inspect the Wiring and Connectors Were any problems found Yes Repair as necessary Perform the Pow
96. causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the Camshaft Position Sensor connector Using ohmmeter measure the resistance between the Sensor Ground circuit in the Camshaft Position Sensor connector and ground 15 the resistance below 5 0 ohms Yes GoTo 16 No GoTo 18 Turn ignition off Disconnect and remove the camshaft position sensor Inspect the tone wheel pulse ring for physical damage Make sure that it turns when the engine is cranked 15 the tone wheel pulse ring free from defects Yes gt GoTo 17 No tone wheel pulse ring as necessary Turn ignition off If there are no possible causes remaining replace the Camshaft Position Sensor View repair options Repair Replace the Camshaft Position Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Camshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the sensor ground circuit from the Camshaft Position Sensor connector to the PCM connector 15 the resistance below 5 0 ohms Yes gt GoTo 19 No gt Repair the open sensor ground circuit Perform the Powertrain Verification Test Ver 5 148
97. channel one connector on the DRB Attach the red and black leads and the cable to probe adapter to the scope input cable Select DRB Standalone Select lab scope Select Live Select 12 volt square wave Press F2 for Scope Press F2 and use the down arrow to Set voltage range to 20 volts Press F2 again when complete Connect the Black lead to the PCM ground Connect the Red lead to the PCM Bus circuit Turn the ignition on Observe the the voltage displayed on the DRB Lab Scope What is the voltage displayed on the scope Pulse from 0 to approximately 7 5 volts GoTo 6 Steady 0 volts Repair the open Bus circuit to PCM Perform Powertrain Verification Test VER 1A The Powertrain Control Module has internal open PCI Bus and must be replaced View repair options Repair Replace the Powertrain Control Module Perform Powertrain Verification Test VER 1A 50 COMMUNICATION Symptom NO RESPONSE FROM PCM SCI ONLY POSSIBLE CAUSES GROUND CIRCUIT S OPEN TO DATA LINK CONNECTOR NO RESPONSE DISPLAYED FROM DRB SCI ONLY DRB DRB ADAPTER CABLE SCI RECEIVE CIRCUIT OPEN SCI RECEIVE CIRCUIT SHORTED TO GROUND SCI TRANSMIT CIRCUIT OPEN SCI TRANSMIT CIRCUIT SHORTED TO GROUND PCM NO RESPONSE START ACTION APPLICABILITY Turn ignition off Disconnect the DRB from the Data Link Connector Measurethe resistance of each of the ground circuits between the data link connector and a good ground Is the r
98. code Most intermittent codes are caused by wiring or connector problems Defects that come and go like this are the most difficult to diagnose they must be looked for under specific conditions that cause them The following checks may assist you in identifying a possible intermittent problem e Visually inspect related wire harness connectors Look for broken bent pushed out or corroded terminals e Visually inspect the related harnesses Look for chafed pierced or partially broken wire e Refer to any Hotline Newsletters or technical service bulletins that may apply e Use the DRBIII data recorder or co pilot e Use the DRBIII PEP module lab scope 3 3 3 RESET COUNTER The reset counter counts the number of times the vehicle has been started since codes were last set erased or the battery was disconnected The reset counter will count up to 255 start counts The number of starts helps determine when the trouble code actually happened This is recorded by the PCM and can be viewed the DRBIII as STARTS since set When there are no trouble codes stored in mem ory the DRBII1 will display NO DTC S Detected and the reset counter will show STARTS since clear 3 3 4 HANDLING NO TROUBLE CODE PROBLEMS Symptom checks cannot be used properly unless the driveability problem characteristic actually happens while the vehicle is being tested Select the symptom that most accurately de scribes
99. connector Turn the ignition on With the DRB actuate the ASD Relay Using a 12 volt Test Light connected to ground probe the ASD relay output circuit at the EGR solenoid harness connector Does the 12 volt test light illuminate Yes gt GoTo 4 No Repair the open the ASD Realy output circuit Perform the Powertrain Verification Test Ver 2 Turn the ignition off Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Measure the resistance of the EGR solenoid control circuit to engine ground at the EGR solenoid connector 15 the resistance below 5 0 ohms Yes Repair the short to ground the EGR solenoid control circuirt Perform the Powertrain Verification Test Ver 2 No gt GoTo 5 Turn the ignition off Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Measure the resistance of the EGR solenoid control circuit to sensor ground circuit at the EGR solenoid connector Is the resistance below 5 0 ohms Yes Repair the EGR solenoid control circuit for a short to the sensor ground circuit Perform the Powertrain Verification Test Ver 2 GoTo 7 If there are possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 2 Turn the ignition off All Disconnect the PCM harness connector Disconnect the EGR solenoid harness con
100. end of the adapter into a graduated container Caution Do not operate the fuel pump for more than 7 seconds in the next step Fuel pump module reservoir may run empty and damage to the fuel pump will result Note Specification A good fuel pump will deliver at least 1 4 liter 1 2 pint of fuel in 7 seconds With the DRB actuate the ASD Fuel System test for 7 seconds 15 the fuel pump capacity within specification Yes gt Test Complete No Check for a kinked damaged fuel supply line between the fuel tank and fuel rail If OK replace the fuel pump module Caution Stop All Actuations The conditions required to set the DTC are no longer present With the read and record the Freeze Frame data and the Fuel System Similar Conditions Window data Utilize the data and try to duplicate the operating conditions at which the DTC was set Pay particular attention to the ECT and RPM for added diagnostics Note Refer to any TSB s that may apply to the symptom Test Complete Repair Test Complete 105 APPLICABILITY All DRIVEABILITY Symptom List 0172 1 1 FUEL SYSTEM RICH 175 2 1 FUEL SYSTEM RICH Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be PO172 1 1 FUEL SYSTEM RICH aa M When Monitored and Set Condition 0172 1 1 FUEL SYSTEM RICH When Monitored With the engine running in closed loop mode the ambient battery tem
101. engine to miss or stall Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 Test Complete 152 Symptom P0352 IGNITION COIL 2 PRIMARY CIRCUIT MMMM When Monitored and Set Condition P0352 IGNITION COIL 2 PRIMARY CIRCUIT When Monitored With battery voltage greater than 8 volts during engine cranking or greater than 12 volts with engine running engine rpm less than 2016 and none of the coils in dwell when checked Set Condition Peak current is not achieved with battery based dwell plus 1 5 msec of diagnostic offset It takes less than 3 seconds during cranking or up to 6 seconds while running to set POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT COIL DRIVER NO 2 CIRCUIT OPEN COIL DRIVER NO 2 CIRCUIT SHORTED TO GROUND WIRING HARNESS INTERMITTENT COIL ON PLUG NO 2 POWERTRAIN CONTROL MODULE COIL DRIVER NO 2 ACTION APPLICABILITY Turn ignition on All With the DRB read the Is the Global Good Trip Counter displayed and equal to zero for P 0352 Yes gt GoTo 2 GoTo 8 Turn ignition off Disconnect the coil on plug no 2 connector Note The following resistance measurement should be taken at 70 80 degrees F Using an ohmmeter measure the primary resistance of the coil on plug Is the resistance between
102. equal to 0 Yes gt GoTo 2 GoTo 6 Turn the ignition off Disconnect the EGR solenoid harness connector Turn the ignition on With the DRB monitor the EGR sense voltage while connecting a jumper wire between the EGR sensor signal and ground Does the voltage go from 5 0 volts to below 1 0 volts Yes Replace the EGR solenoid assembly Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Turn the ignition off Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Using jumper wire connected to engine ground probe the sensor ground circuit at the PCM connector Using a 12 volt test light connected to battery voltage probe the sensor ground ckt at the EGR solenoid harness connector Does the test light illuminate Yes gt GoTo 4 No Repair the open or high resistance the sensor ground circuit Perform the Powertrain Verification Test Ver 2 175 DRIVEABILITY P0404 EGR POSITION SENSOR RATIONALITY Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Using a jumper wire connected to engine ground probe the EGR sensor signal circuit at the PCM connector Using a 12 volt test light connected to battery voltage probe the EGR sensor signal ckt at the EGR solenoid harness connector Does the test light illuminate bright Yes gt GoTo 5 No
103. ese os 115 PO203 INJECTOR 3 CONTROL 5 gt 5 5584555 5556 55566 118 PO204 INJEC TOR 4 CONTROL CIRCUIT oc is ce ecto ee ey oe nk debs 121 PO205 INJECTOR 5 CONTROL CIRCUIT ew Ss owe 124 P0206 INJECTOR 6 CONTROL CIRCUIT he 127 PO300 MULTIPLE CYLINDER MIS FIRE de 130 P0301 CYLINDER 1 255 08 5 130 2 2 MISFIRE 55825555566 130 P0303 CYLINDER 3 MISHR E se peresid iniisip a tg R nE DEE 130 P0304 CYLINDER 4 MISFIRE 130 PO305 CYLINDER 5 exes 130 P0306 CYLINDER 6 130 0320 CRANK REFERENCE SIGNAL 134 P0325 KNOCK SENSOR 1 CIRCUIT 141 40 CAM SIGNAL AT 144 P0351 IGNITION COIL 1 PRIMARY CIRCUIT 150 P0352 IGNITION COIL 2 PRIMARY CIRCUIT 4 gt 153 P0353 IGNITION COIL 3 PRIMARY CIRCUIT 156 P0354 IGNITION COIL 4 PRIMARY CIRCUIT 159 P0355 IGNITION COIL 5 PRIMARY CIRCUIT 162 P0356 IGNITION COIL 6 PRIMARY CIRCUIT 165 P0
104. for high resistance between the PCM the Battery Perform the Powertrain Verification Test Ver 3 28 CHARGING CHECKING CHARGING SYSTEM OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY If there no possible causes remaining replace the Powertrain Control Module All View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 3 29 CHARGING Symptom CHECKING THE AMBIENT BATTERY TEMPERATURE SENSOR POSSIBLE CAUSES WIRING HARNESS INTERMITTENT BTS DEFECTIVE OUT OF CALIBRATION APPLICABILITY Turn ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No GoTo 2 Turn ignition on With the DRB in sensors read the Ambient Bat Tmp Deg value and record the reading Using a temp probe measure the air temperature near the BTS 15 the recorded BTS temperature value within 10 of the temperature probe reading Yes gt Test Complete No Replace the BTS Perform the Powertrain Verification Test Ver 5 30 COMMUNIC
105. free from defects Yes gt GoTo 9 No Repair replace tone wheel flex plate as necessary If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the Crankshaft Position Sensor connector Using an ohmmeter measure the resistance between the Sensor Ground circuit in the CKP Sensor connector and Ground 15 the resistance below 5 0 ohms Yes gt GoTo 8 gt GoTo 20 136 20 CRANK REFERENCE SIGNAL AT Continued ACTION APPLICABILITY Turn ignition off Disconnect the Crankshaft Position Sensor connector Turn ignition on Using a voltmeter measure the CKP signal circuit at the CKP Sensor connector Select a conclusion that best matches your voltage measurement Less than 4 5 volts GoTo 11 Between 4 5 and 5 5 volts GoTo 17 Between 7 5 and 8 5 volts Repair the CKP signal circuit for a short to the 8 volt supply circuit Perform the Powertrain Verification Test Ver 5 Greater than 8 5 volts Repair the CKP signal circuit shorted to voltage Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the Crankshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Using ohmmeter measure the resistance of the CKP signal circuit from t
106. is a random number that is generated by the PCM at each ignition key cycle The VIN and seed are plugged into a rolling code algorithm that encrypts the valid invalid key mes sage The PCM uses the rolling code algorithm to receive decode and respond to the valid invalid key message sent by the SKIM After sending the valid invalid key massage the SKIM waits 3 5 seconds for a PCM status message from the PCM If the PCM does not respond with a valid key message to the SKIM a fault is detected and a trouble code is stored The SKIS incorporates a warning lamp located on the instrument panel upper cover The lamp re ceives switched ignition voltage and is hardwired to the body control module The lamp is actuated when the SKIM sends a PCI Bus message to the body controller requesting the lamp on The body control ler then provides the ground for the lamp The SKIM will request lamp operation for the following bulb checks at ignition on to alert the vehicle operator to SKIS malfunc tion For all faults except transponder faults and VIN mismatch the lamp remains on steady the event of a tranponder fault the light flashes at a rate of 1 Hz once per If a fault is present the lamp will remain on or flashing for the complete ignition cycle If a fault is stored in SKIM memory which prevents the system form operating properly the PCM will allow the engine to start and run for 2 seconds up tosix times A
107. met a trouble code will be stored in the PCM memory The On Board Diagnostics have evolved to a new Generation of Diagnostics referred to as Euro Stage 3 On Board Diagnostics The following table summarizes the various OBDII monitors operation GENERAL INFORMATION Euro Stage OBD MONITOR INFORMATION Comprehensive Components Monitor Major Monitors Non Fuel Control amp Non Misfire Major Monitors Fuel Control amp Misfire Run constantly Includes All Engine Hardware Sensors Switches Solenoids etc One Trip Faults Turns On The MIL and Sets DTC After One Failure except for most ra tionality tests which are two trip Priority 3 All Checked For Continuity Open Short To Ground Short To Voltage Inputs Checked For Rationality Outputs Checked For Functionality Requires 3 Consecutive Global Alternate Good Trips to Extinguish the MIL Run Once Per Trip Monitors Entire Emission System Two Trip Faults Turns On The MIL and Sets DTC After Two Consecutive Failures Priority 1 or 3 Done Stop Testing Yes Oxygen Sensor Heater Oxygen Sensor Response Catalytic Converter Efficiency Except EWMA up to 6 tests per trip and a one trip fault EGR System Evaporative Emission System Requires 3 Consecutive Global Good Trips to Extinguish the MIL 40 Warm Up Cycles are required to erase DTC s after the MIL has been extinguished Run Constantly Monitors Entire
108. more than 100 miles POSSIBLE CAUSES PHYSICALLY DAMAGED DEFORMED OBSTRUCTED FUEL TANK FUEL LEVEL SENSOR APPLICABILITY Note Diagnose P0462 or P0463 first if set along with P0460 All Release fuel pressure using the following test steps Remove the fuel pump relay from the PDC Start and run the engine until it stalls Attempt to restart the engine until it will no longer run Turn ignition off Remove the fuel tank Remove the fuel pump module from the fuel tank Inspect the inside of the fuel tank for any obstructions or deformities Is the fuel tank free from defects Yes gt GoTo 2 No Repair or replace the fuel tank as necessary Perform Powertrain Verification Test VER 2A A fuel pump relay control circuit DTC may have been stored in the PCM memory due to the removal of the fuel pump relay The DRB scan tool must be used to erase a DTC If there are no possible causes remaining replace the Fuel Level Sensor View repair options Repair Replace the fuel level sensor Perform Powertrain Verification Test VER 2A 193 Symptom List 462 LEVEL SENDING UNIT VOLTS LOW P0463 F UEL LEVEL SENDING UNIT VOLTS TOO HIGH Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will PO0462 FUEL LEVEL SENDING UNIT VOLTS TOO LOW When Monitored and Set Condition P0462 FUEL LEVEL SENDING UNIT VOLTS TOO LOW When
109. off Disconnect the A C Pressure Sensor harness connector Disconnect the PCM harness connector Measure the resistance of the sensor ground circuit from the PCM harness connector to the A C Pressure Sensor harness connector 15 the resistance below 5 0 ohms Yes gt GoTo 3 No the open TP Sensor Ground Circuit Perform the Powertrain Verification Test Ver 2 Turn the ignition off Disconnect the A C Pressure Sensor harness connector Turn the ignition on Measure the voltage of the A C Pressure Sensor Signal circuit Is the voltage above 5 5 volts Yes Repair theA C Pressure Sensor Signal Circuit shorted to voltage Perform the Powertrain Verification Test Ver 2 gt GoTo 4 272 amp 1598 PRESSURE SENSOR VOLTS HIGH Continued ACTION APPLICABILITY Turn the ignition off Disconnect the A C Pressure Sensor harness connector Turn the ignition on With the DRBIII read the A C Pressure Sensor voltage Connect a jumper wire between the A C Sensor Signal circuit and Sensor Ground circuit 15 the voltage below 1 0 volt Yes gt Replace theA C Pressure Sensor Perform the Powertrain Verification Test Ver 2 No gt GoTo 5 Turn the ignition off All Disconnect the A C Pressure Sensor harness connector Disconnect the PCM harness connector Measure the resistance of the A C Pressure Signal circuit between the Sensor connector and the PCM co
110. or stall Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 Test Complete 155 Symptom P0353 IGNITION 3 PRIMARY CIRCUIT When Monitored and Set Condition P0353 IGNITION COIL 3 PRIMARY CIRCUIT When Monitored With battery voltage greater than 8 volts during engine cranking or greater than 12 volts with engine running engine rpm less than 2016 and of the coils in dwell when checked Set Condition Peak current is not achieved with battery based dwell plus 1 5 msec of diagnostic offset It takes less than 3 seconds during cranking or up to 6 seconds while running to set POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT COIL ON PLUG NO 3 WIRING HARNESS INTERMITTENT COIL DRIVER NO 3 CIRCUIT OPEN COIL DRIVER NO 3 CIRCUIT SHORTED TO GROUND POWERTRAIN CONTROL MODULE COIL DRIVER NO 3 ACTION APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for P 0353 Yes gt GoTo 2 gt GoTo 8 Turn ignition off Disconnect the coil on plug no 3 connector Note The following resistance measurement should be taken at 70 80 degrees F Using an ohmmeter measure the primary resistance of the coil on plug Is the resistance between 0 6 and
111. problems It is not necessary to perform all of the tests in this book to diagnose an individual code Always begin by reading the diagnostic trouble codes using the DRBIII 3 3 1 HARD CODE A diagnostic trouble code that comes back within one cycle of the ignition key is a hard code This means that the defect is there every time the powertrain control module checks that circuit or function Procedures in this manual verify if the trouble code is a hard code at a the beginning of each test When it is not a hard code an intermit tent test must be performed Codes that are for Euro Stage OBD monitors will not set with just the ignition key on Comparing these GENERAL INFORMATION to non emission codes they will seem like an intermit tent These codes require a set of parameters to be performed DRBIII pre test screens will help with this for MONITOR codes this is called TRIP All DTCs will be set after one or in some cases twotrip failures and the MIL will beturned on These codes require three successful no failures TRIPS to extinguish the MIL followed by 40 warm up cycles to erase the code For further explanation of TRIPS Pretest screens Warm up cycles and the use of a the DRBIII refer to the On Board Diagnostic training booklet 81 699 97094 3 3 2 INTERMITTENT CODE A diagnostic trouble code that is not there every timethePCM checks the circuit is an intermittent
112. pulses determined by a crank time strategy Cold engine operation is deter mined via an open loop strategy until the 2 sensors have reached operating temperature At this point the strategy enters a closed loop mode where fuel requirements are based upon the state of the O2 sensors engine speed MAP throttle posi tion air temperature battery voltage and coolant temperature 3 2 2 ON BOARD DIAGNOSTICS ThePCM has been programmed to monitor many different circuits of the fuel injection system This monitoring is called on board diagnosis GENERAL INFORMATION Certain criteria or arming conditions must be met for a trouble code to be entered into the PCM memory The criteria may bea range of enginerpm engine temperature and or input voltage to the PCM If a problem is sensed with a monitored circuit and all of the criteria or arming conditions are met then a trouble code will be stored in the PCM It is possible that a trouble code for a monitored circuit may not be entered into the PCM memory even though a malfunction has occurred This may happen because one of the trouble code criteria arming conditions have not been met The PCM compares input signal voltages from each input device with specifications the estab lished high and low limits of the range that are programmed into it for that device If the input voltage is not within specifications and other trou ble code criteria arming conditions are
113. seconds of transmitting what the SKIM believes to be code message to the PCM The key code sent by the SKIM may or may not be valid this case SERIAL LINK EXTERNAL FAULT When Monitored At ignition ON after ignition ON during any rolling code handshake that occurs with the PCM due to a SKIM reset PCM reset or during Secret Key transfers to the PCM Set Condition This condition is set when the SKIM does not receive an expected bus message transmission acknowledgment from the PCM after 3 transmit attempts POSSIBLE CAUSES INTERMITTENT WIRING HARNESS PROBLEM WIRING HARNESS INSPECTION SKIM PCM DEFECTIVE 321 VEHICLE THEFT SECURITY PCM STATUS FAILURE Continued ACTION APPLICABILITY Note E nsure the PCM has proper powers and grounds before continuing Using the DRB erase the codes Turn ignition off Wait 10 seconds Turn ignition on Using the DRB read the codes Does the DRB display the code that was previously erased Yes gt GoTo 2 No gt GoTo 4 Turn ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair as necessary Perform the SKIS Verification Test No G
114. sensed at the PCM when theASD relay is energized POSSIBLE CAUSES WIRING HARNESS INTERMITTENT PROBLEM ASD RELAY OUTPUT CIRCUIT OPEN FUSED B CIRCUIT OPEN ASD RELAY PCM PCM DEFECTIVE ACTION APPLICABILITY Turn ignition on All With the read the DTC s Is DTC P1388 set Yes Refer tosymptom P1388 AUTO SHUTDOWN RELAY CONTROL CIRCUIT in the DRIVEABILITY category gt GoTo 2 With the DRB erase the trouble codes Attempt to start the engine If the engine will not start crank the engine for at least 15 seconds Does the trouble code reset necessary crank the engine several times Yes gt GoTo 3 gt GoTo 10 Attempt to start the engine If the engine will not start crank the engine for at least 15 seconds Did the engine start Yes gt GoTo 4 No gt GoTo 6 227 DRIVEABILITY P1389 NO ASD RELAY OUTPUT VOLTAGE AT PCM Continued APPLICABILITY Turn ignition off All Remove the ASD relay from the PDC Disconnect the Powertrain Control Module Using an ohmmeter measure the resistance of the ASD relay output circuit from the ASD Relay connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 5 No Repair the open ASD Relay output circuit Perform the Powertrain Verification Test Ver 2 If there no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Mo
115. set when an error occurs during programming the SKIM s EEPROM The other condition that causes this code to matureis an EEPROM 2 link failure POSSIBLE CAUSES SKIM INTERNAL DTC FAILURE ACTION APPLICABILITY Note This trouble code indicates an internal SKIM fault All With the the DRBIII read and record SKIM and then erase SKIM 5 Perform several key cycles leaving the key for a minimum of 30 seconds per cycle With the DRB 1119 read SKIM trouble codes Did the SKIM Internal DTC return Yes Replace the Sentry Key Immobilizer Module Perform the SKIS Verification Test No Test Complete 320 VEHICLE THEFT SECURITY Symptom List PCM STATUS FAILURE ROLLING CODE FAILURE SERIAL LINK EXTERNAL FAULT Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be PCM STATUS FAILURE When Monitored and Set Condition PCM STATUS FAILURE When Monitored This condition is monitored at ignition ON and continuously during an ignition ON cycle Set Condition This condition exists when a PCM STATUS bus message was not received from the PCM Note Failure maturity time is 20 seconds ROLLING CODE FAILURE When Monitored At ignition ON after ignition ON during any rolling code handshake that occurs with the PCM due to SKIM or a PCM reset Set Condition This condition exists when a PCM STATUS message is not received by the SKIM within 3 5
116. supply line Were any problems found with the fuel supply line Yes gt Repair replace fuel supply line as necessary No GoTo 12 109 DRIVEABILITY 0172 1 1 FUEL SYSTEM RICH Continued APPLICABILITY Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer 15 the Fuel Inlet Strainer plugged Yes Replace the Fuel Pump Inlet Strainer gt GoTo 13 If there no possible causes remaining replace the Fuel Pump Module View repair options Repair Replace the Fuel Pump Module Ignition On Engine Not Running With the DRB read TP Sensor voltage Throttle must be against stop Is the voltage 0 92 or less with the Throttle closed Yes gt GoTo 15 No Check for a binding throttle condition If OK replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Note For this test to be valid the thermostat must be operating correctly All Note This test works best if performed on a cold engine cold soak Turn Ignition On With the DRB in sensors read the Eng Coolant Tmp Deg value If the engine was allowed to sit overnight cold soak the temperature value should be a sensible value that is somewhere close to the surrounding temperature ambient temperatur
117. that pertain to speed control problem and then if necessary return to Symptom List 16 Depress and release the CANCEL switch If the speed control did not disengage the repair is not complete Check for TSBs that pertain to speed control problem and then if necessary return to Symptom List 17 Bring the vehicle speed back up above 35 mph and engage speed control 18 Depress the OFF switch to turn OFF Cruise light will be off If the speed control did not disengage the repair is not complete Check for TSBs that pertain to speed control problem and then if necessary return to Symptom List 19 If the vehicle successfully passed all of the previous tests the speed control system is now functioning as designed The repair is now complete Repair is not complete refer to appropriate symptom 331 VERIFICATION TESTS Verification Tests Continued POWERTRAIN VERIFICATION TEST VER 5 1 Inspect the vehicle to ensure that all engine components are properly installed and connected Reassemble and reconnect components as necessary 2 If any existing diagnostic trouble codes have not been repaired go to Symptom List and follow path specified 3 Connect the DRBIII to the data link connector 4 Ensure the fuel tank has at least a quarter tank of fuel Turn off all accessories 5 Perform steps 6 through 8 if the PCM has been replaced Then proceed with the verification If the PCM has not been replaced skip those steps
118. the DRB Listen for the LDP to quit actuating Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 244 DRIVEABILITY Symptom P1495 LEAK DETECTION PUMP SOLENOID CIRCUIT When Monitored and Set Condition P1495 LEAK DETECTION PUMP SOLENOID CIRCUIT When Monitored Immediately after a cold start with battery ambient temperature between 40 deg F and 90 deg F and coolant temperature within 10 deg F of battery ambient Set Condition state of the solenoid circuit does not match the 5 desired state POSSIBLE CAUSES WIRING HARNESS INTERMITTENT FUSED IGNITION SWITCH OUPUT CIRCUIT OPEN LDP SOLENOID CONTROL CIRCUIT OPEN LDP SOLENOID CONTROL CIRCUIT SHORTED TO GROUND LEAK DETECTION PUMP FUNCTION POWERTRAIN CONTROL MODULE APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for P 1495 Yes gt GoTo 2 gt GoTo 7 Turn the ignition off Disconnect the Leak Detection Pump harness connector Turn the ignition on With a test light connect one end to the fused ignition switch output circuit and the other end to the LDP solenoid control circuit at the LDP harness connector With the DRB actuate the Leak Detection Pump Does the test light flash on and of
119. the DRB 1119 monitor the Similar Conditions to attempt to duplicate the conditions that the vehicle was operating at when the DTC was set If the conditions can be duplicated the Good Trip counter will change to one or more 12 If the conditions cannot be duplicated erase trouble codes and disconnect the 13 If the repaired DTC has reset the OBD II monitor failed after running the repair is not complete Check for any technical service bulletins or flash updates and return to Symptom List 14 If anew DTC has set return to Symptom List and perform the tests specified for that code 15 If the monitor ran and the Good Trip counter changed to one or more the repair was successful 16 Erase DTC s 17 Disconnect the DRBIII Test complete Repair Repair is not complete refer to appropriate symptom POWERTRAIN VERIFICATION TEST VER 1 APPLICABILITY 1 Inspect the vehicle to ensure that all engine components are properly installed and All connected Reassemble and reconnect components as necessary 2 Inspect the engine oil for contamination If it is contaminated change the oil and filter 3 Perform the steps 1 through 6 if the PCM has been replaced Then proceed with the verification If the PCM has not been replaced skip those steps and continue verification 4 PCM has been changed and correct VIN and mileage have not been programmed will be set in ABS and Air Bag modules In addition if vehicle is
120. the Powertrain Verification Test Ver 2 GoTo 6 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 2 Note The engine will run rough and possibly stall in the following test Feather the accelerator panel to keep the engine from stalling Start the engine With the DRB enter Engine System Test and then EGR System Test Push the 4 VARIABLE function Monitor the EGR voltage while slowly pushing the up arrow Is the voltage change smooth Yes gt GoTo 8 No Replace the EGR solenoid assembly Perform the Powertrain Verification Test Ver 2 Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 178 Symptom P0406 EGR POSITION SENSOR VOLTS TOO HIGH When Monitored and Set Condition P0406 EGR POSITION SENSOR VOLTS TOO HIGH When Monitored With the ignition on the battery voltage above 10 0 volts Set Condition EGR position sensor signal is g
121. the S C Vacuum Solenoid Control Circuit from the Servo Connector to a good ground 15 the resistance below 5 0 ohms Yes gt Repair the short to ground the S C Vacuum Solenoid Control Circuit Perform the Powertrain Verification Test Ver 4 GoTo 11 Turn ignition off SPEED CONTROL Disconnect the S C Servo Using the DRB actuate the S C Vacuum solenoid Using a 12 Volt Test Light connected to probe the S C Vacuum Solenoid Control Circuit Does the test light blink on and off Yes Replace the S C Servo Perform the Powertrain Verification Test Ver 4 No GoTo 12 If there are no possible causes remaining replace the PCM SPEED CONTROL View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo 4 Way Connector Note Check connectors Clean repair as necessary Note Ensure the Brake Pedal is not depressed during the following steps Key on Engine off Turn S C Switch on With the DRB actuate the S C Vacuum Solenoid Using 12 Volt Test Light check the S C Brake Switch Output Circuit at the Servo connector Is the light illuminated and bright Yes gt GoTo 14 GoTo 19 Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo Connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the Grou
122. the Throttle open a few times Observe the vacuum gauge readings and compare to sample graphic Are the vacuum gauge readings normal Yes gt Test Complete No GoTo 2 It is suggested to perform the following mechanical checks after all engine electrical systems and DTC s have been repaired or confirmed to be operating properly Warning The following tests may be performed with the engine running avoid contact with rotating components ENGINE VACUUM must be at least 13 inches in neutral ENGINE VALVE TIMING must be within specifications ENGINE COMPRESSION must be within specifications ENGINE EXHAUST SYSTEM must be free of any restrictions ENGINE PCV SYSTEM must flow freely ENGINE DRIVE SPROCKET must be properly positioned TORQUE CONVERTER STALL SPEED must be within specifications auto only POWER BRAKE BOOSTER no internal vacuum leaks FUEL must be free of contamination FUEL INJECTOR plugged or restricted injector control wire not connected to correct injector Were any problems found Yes gt Repair as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 252 Symptom CHECKING EVAPORATIVE EMISSION SYSTEM POSSIBLE CAUSES EVAP CANISTER EVAP PURGE HOSE CANISTER TO FUEL TANK EVAP PURGE HOSE SOLENOID TO CANISTER EVAP PURGE SOLENOID VACUUM SUPPLY PROPORTIONAL PURGE SOLENOID STUCK CLOSED PROPORTIONAL PURGE SOLENOID DEFECTIVE ACTION
123. the vehicle s driveability problem and then perform the test routine that pertains to this symp tom Perform each routine test in sequence until the problem is found For definitions see Section 6 0 Glossary of Terms SYMPTOM HARD START DIAGNOSTIC TEST CHECKING SECONDARY IGNITION SYSTEM CHECKING ENGINE VAC UUM CHECKING THE FUEL PRESSURE CHECKING COOLANT SEN SOR CALIBRATION CHECKING THROTTLE PO SITION SENSOR CALIBRA TION CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW CHECKING IDLE AIR CON TROL MOTOR OPERATION CHECKING ENGINE ME CHANICAL SYSTEMS CHECKING EVAP EMISSION SYSTEM CHECKING EGR SYSTEM CHECKING IAT SENSOR START AND STALL CHECKING SECONDARY IGNITION SYSTEM CHECKING PCM POWER AND GND CKT CHECKING THE FUEL PRESSURE CHECKING COOLANT SEN SOR CALIBRATION CHECKING THROTTLE PO SITION SENSOR CALIBRA TION CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW CHECKING IDLE AIR CON TROL MOTOR OPERATION HESITATION SAG STUMBLE SURGE CHECKING SECONDARY IGNITION SYSTEM CHECKING PCM POWER AND GND CKT CHECKING ENGINE VAC UUM CHECKING THE FUEL PRESSURE CHECKING COOLANT SEN SOR CALIBRATION CHECKING THROTTLE PO SITION SENSOR CALIBRA TION CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW CHECKING FOR OXYGEN SENSOR SWITCHING CHECKING O2S HEATER CHECKING IDLE AIR CON TROL MOTOR O
124. turns on the MIL indicator 4 With the DRBIII display transmission temperature Start and run the engine until the transmission temperature is HOT above 110 deg F 5 Check the transmission fluid and adjust if necessary Add oil slowly 1 pint at a time to avoid overfilling especially when cold Once oil is visible on the dipstick do not add oil until transmission oil temp is 180 degrees 6 Note If the transmission control module or torque converter has been replaced if the transmission has been repaired or replaced it is necessary to perform the DRBIII quick learn procedure 7 Road test the vehicle With the DRBIII monitor the engine RPM 15 to 20 1 2 2 3 3 4 upshifts Perform these shifts from a standing start to 45 MPH with a constant throttle opening of 20 to 25 degrees 8 Below 25 MPH make 5 to 8 wide open throttle kickdowns to 1st gear Allow at least 5 seconds each in 2nd and 3rd gear between each kickdown 9 For specific DTC drive the vehicle to the Symptom s When Monitored When Set conditions to verify the DTC repair 10 Check for Diagnostic Trouble Codes DTC s during the road test If a DTC sets during the road test return to the Symptom list and follow the path Were any Trouble Codes set during the road test Yes Refer tothe Symptom List for appropriate diagnostic tests Perform the 42LE Transmission Verification Test Ver 1 No Repair is complete 327 VERIFICATIO
125. vacuum nipple free from defects Yes gt GoTo 6 No Repair the vacuum supply hose tube as necessary Perform Powertrain Verification Test VER 5 Turn ignition off All Disconnect the vacuum hoses at the Proportional Purge Solenoid Using a hand vacuum pump apply 10 inches of vacuum to the Proportional Purge Solenoid vacuum source port component side Does the Proportional Purge Solenoid hold vacuum Yes gt GoTo 7 No Replace the Proportional Purge Solenoid Perform Powertrain Verification Test VER 5A Turn ignition off Disconnect the vacuum hoses at the Proportional Purge Solenoid Using a hand vacuum pump apply 10 inches of vacuum to the Proportional Purge Solenoid vacuum source port component side With the DRB actuate the EVAP Purge Solenoid and observe the vacuum gauge Does the vacuum drop when the solenoid is actuated Yes Test Complete No Replace the Proportional Purge Solenoid Perform Powertrain Verification Test VER 5A At this time the conditions required to set the DTC are not present Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the Proportional Purge Solenoid and vacuum har ness Look for any chafed pierced pinched or partially broken hoses Note Refer to any technical service bulletins that may apply Were any problems found
126. voltage Compare the Target Voltage to the Battery Voltage reading Monitor voltage for 5 minutes if necessary Look for a 1 0 volt difference or more Was there more than a 1 0 volt difference Yes Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 3 No Test Complete 22 CHARGING P1594 CHARGING SYSTEM VOLTAGE TOO HIGH Continued APPLICABILITY Turn ignition off All Note Battery must be fully charged Note Generator Belt tension and condition must be checked before con tinuing Start engine and allow it to reach operating temperature With the DRB read the BTS temperature Using a Thermometer measure under hood temperature 15 the temperature within 10 F degrees of Battery temperature Yes gt Test Complete No Replace Powertrain Control Module Perform the Powertrain Verification Test Ver 3 Turn ignition off Disconnect the PCM Connectors Disconnect the Generator Field harness connector Using an Ohmmeter measure the Generator Field Driver Circuit from PCM Connector to ground 15 the resistance below 5 0 ohms Yes Repair the Generator Field Driver Circuit shorted to ground Perform the Powertrain Verification Test Ver 3 No gt GoTo 6 Turn ignition off Disconnect the Field Harness Connector at back of the Generator Note Check connectors Clean repair as necessary Measure resistance of the Generator Field
127. voltage at the Throttle Position Sensor Connector Did the 5 Volt Supply go from below 4 5 volts to above 4 5 volts when the sensor was disconnected Yes gt Replace theA C Pressure Sensor Perform the Powertrain Verification Test Ver 5 No gt GoTo 5 Turn ignition off Disconnect the Throttle Position Sensor Connector Turn ignition on Connect a Voltmeter to the 5 Volt Supply Circuit at the Throttle Position Sensor Connector Record Voltage Reading Turn ignition off Disconnect the MAP Sensor Connector Turn ignition on Read and record the 5 Volt Supply Circuit voltage at the Throttle Position Sensor Connector Did the 5 Volt Supply go from below 4 5 volts to above 4 5 volts when the MAP was disconnected Yes Replace the MAP Sensor Perform the Powertrain Verification Test Ver 5 No gt GoTo 6 248 1496 5 VOLT SUPPLY OUTPUT TOO LOW Continued ACTION APPLICABILITY Turn the ignition off Disconnect the Throttle Position Sensor harness connector Disconnect the MAP Sensor harness connector Disconnect the PCM harness connectors Disconnect the A C Pressure Sensor harness connector Disconnect the EGR Solenoid harness connector Using an ohmmeter measure the resistance of the 5 Volt Supply Cirucit from the Throttle Position Sensor Connector to ground 15 the resistance below 5 0 ohms Yes Repair the 5 Volt Supply Circuit for a short to ground Perform the
128. 0 4 volts Set Condition ThelntakeAir Temperature IAT sensor circuit voltage at the PCM goes below 0 8 volt POSSIBLE CAUSES IAT SENSOR SIGNAL CIRCUIT SHORTED TO GROUND IAT SENSOR SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT IAT SENSOR POWERTRAIN CONTROL MODULE WIRING HARNESS INTERMITTENT APPLICABILITY Turn ignition on All With the read the 5 15 the Global Good Trip Counter displayed and equal to zero for P0112 Yes gt GoTo 2 No gt GoTo 6 Turn Ignition On With the DRB read the Intake Air Tmp Volt value Turn the ignition off Disconnect the harness connector Turn the ignition on With the DRB in sensors read the Intake Air Tmp Volt value Did the Intake Air Tmp Volt value change from below 1 0 volt to above 4 5 volts No gt GoTo 3 Yes Replace the Sensor Perform the Powertrain Verification Test Ver 5 Turn the ignition off Disconnect the IAT Sensor harness connector Disconnect the PCM harness connectors Using an Ohmmeter measure the resistance between the Sensor Signal circuit and ground B Is the resistance below 5 0 ohms Yes gt Repair the short to ground Perform the Powertrain Verification Test Ver 5 No gt GoTo 4 69 DRIVEABILITY 0112 AIR TEMP SENSOR VOLTAGE LOW Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the IAT Sensor harness connector Disc
129. 0 9 ohms Yes gt GoTo 3 No Replace the coil on plug no 3 Perform the Powertrain Verification Test Ver 5 156 P0353 IGNITION COIL 3 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Turn ignition off Disconnect the plug 3 connector Turn ignition on With the DRB actuate the generator field Usinga 12 test light connected to ground check the ASD relay output circuit at the coil on plug no 3 electrical connector Does the test light illuminate brightly Yes gt GoTo 4 No Repair the open high resistance in the ASD relay output circuit Perform the Powertrain Verification Test Ver 5 Stop All Actuations Turn ignition off Note The following test is done at the coil on plug no 2 connector with the coil on plug connected Back probe the coil driver no 3 circuit with Miller tool 6801 and a test light connected to Warning Keep clear of the engine s moving parts Start the engine and observe the test light Does the test light blink flicker Yes gt Test Complete gt GoTo 5 Caution Turn the Engine Off Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the coil driver no 3 circuit from the coil on plug no 3 connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open coil driver circuit Perform the Powertrain Ver
130. 0 MULTIPLE CYLINDER MIS FIRE When Monitored Any time the engine is running and the adaptive numerator has been successfully updated Set Condition When more than a 2 misfire rate is measured during two trips or with a 10 to 30 misfire rate during one trip P0301 CYLINDER 1 MISFIRE When Monitored Any time the engine 15 running and the adaptive numerator has been successfully updated Set Condition When more than a 2 misfire rate is measured during two trips or with a 10 to 30 misfire rate during one trip P0302 CYLINDER 2 MISFIRE When Monitored Any time the engine is running and the adaptive numerator has been successfully updated Set Condition When more than a 2 misfire rate is measured during two trips or with a 10 to 30 misfire rate during one trip P0303 CYLINDER 3 MISFIRE When Monitored Any time the engine 15 running and the adaptive numerator has been successfully updated Set Condition When more a 2 misfire rate is measured during two trips or with a 10 to 30 misfire rate during one trip P0304 CYLINDER 4 MISFIRE When Monitored Any time the engine is running and the adaptive numerator has been successfully updated Set Condition When more than a 2 misfire rate is measured during two trips or with a 10 to 30 misfire rate during one trip 130 DRIVEABILITY CYLINDER MIS FIRE Continued E P0305 CYLINDER 5 MISFIRE When Monitored Any ti
131. 0135 1 1 O2 SENSOR HEATER FAILURE When Monitored With battery voltage greater than 9 volts at a cold start ECT less than 147 F battery temperature sensor equal to or less than 27 F and engine at idle for at least 12 seconds Set Condition O2 sensor voltage greater than 3 volts for 30 to 90 seconds 0141 1 2 O2 SENSOR HEATER FAILURE When Monitored With battery voltage greater than 9 volts at a cold start ECT less than 147 F battery temperature sensor equal to or less than 27 F and engineat idle for at least 12 seconds Set Condition O2 sensor voltage greater than 3 volts for 30 to 90 seconds 0155 2 1 O2 SENSOR HEATER FAILURE When Monitored With battery voltage greater than 9 volts at a cold start ECT less than 147 F battery temperature sensor equal to or less than 27 F and engine at idle for at least 12 seconds Set Condition O2 sensor voltage greater than 3 volts for 30 to 90 seconds 0161 2 2 O2 SENSOR HEATER FAILURE When Monitored With battery voltage greater than 9 volts at a cold start ECT less than 147 F battery temperature sensor equal to or less than 27 F and engine at idle for at least 12 seconds Set Condition O2 sensor voltage greater than 3 volts for 30 to 90 seconds POSSIBLE CAUSES OPEN ASD RELAY OUTPUT CIRCUIT 025 HEATER GROUND CIRCUIT OPEN WIRING HARNESS INTERMITTENT 97 DRIVEABILITY 0135 1 1 2 SENSOR HEATER FAILURE Continued POSSIBLE CAUSES
132. 1 at connector C308 Does the test light illuminate brightly Yes gt GoTo 6 No Repair the high resistance in the fuel pump relay ouput circuit Check wire from PDC to fuel pump module connector Also check for bad relay Perform Powertrain Verification Test VER 1A Caution Stop All Actuations 312 STARTING START AND STALL CONDITION Continued ACTION APPLICABILITY Note For this test to be valid the thermostat must be operating correctly All Note This test works best if performed on a cold engine cold soak Turn Ignition With the DRB in sensors read the Eng Coolant Tmp Deg value If the engine was allowed to sit overnight cold soak the temperature value should be a sensible value that is somewhere close to the surrounding temperature ambient temperature Note If engine coolant temperature is above 82 C 180 F allow the engine to cool until 65 150 is reached Start the Engine During engine warm up monitor the Eng Coolant Tmp Deg value The temp deg value change should be a smooth transition from start up to normal operating temp 82 C 180 F The value should reach at least 82 180 F Was the Eng Coolant Tmp Deg value increase a smooth transition and did it reach at least 180 Yes gt GoTo 7 No Replace the Engine Coolant Temperature Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect connector C308 that is
133. 1 0 2 0 3 0 4 0 5 0 6 0 TABLE CONTENTS aa bee ese eal ee ee are 1 11 SYSTEM COVERAGE 1 12 SIX STEP TROUBLESHOOTING PROCEDURE 1 IDENTIFICATION OF 5 5 2 2 lt 5 2 1 SYSTEM DESCRIPTION AND FUNCTIONAL 1 3 1 GENERAL DESCRIPTION 1 22 FUNCTON OPERATION 1 32 1 PUBL CONTROL needs 1 322 ON BOARD 1 323 OTHER CONTROLS ds 4 324 OPERATING MODES beh ted 4 3 25 5 326 SKIS OVERVIEW t 6590894 5 3 2 7 SKIM ON BOARD 2 gt 5 25 gt 5 55 5556 56555555 5 3 2 8 SKIS OPERATION 55 6 3 2 9 PROGRAMMING THE POWERTRAIN CONTROL MODULE 6 3 2 10 PROGRAMMING THE SENTRY KEY IMMOBILIZER MODULE 7 3 2 11 PROGRAMMING THE IGNITION KEYS TO THE SENTRY KEY IMMOBILIZER MODULE oo ce 7 33 DIAGNOSTIC TROUBLE CODES 3 5555855 7 3 3 1 HARD CODE
134. 1 SYSTEM COVERAGE This diagnostic procedures manual covers the following 2000 Chrysler 300M equipped with a 2 7L or 3 5L engine 1 2 SIX STEP TROUBLESHOOTING PROCEDURE Diagnosis of the powertrain control PCM is done six basic steps e verification of complaint e verification of any related symptoms e symptom analysis e problem isolation module GENERAL INFORMATION e repair of isolated problem e verification of proper operation 2 0 IDENTIFICATION OF SYSTEM The Powertrain Control Module PCM monitors and controls e Fuel system e Ignition system e charging system e speed control system e cooling system 3 0 SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION 3 1 GENERAL DESCRIPTION These Sequential Fuel Injection SFI engine sys tems have the latest in technical advances The Euro Stage 3 On Board Diagnostics incorporated with the powertrain control module are intended to assist the field technician in repairing vehicle problems by the quickest means 3 2 FUNCTION OPERATION 3 2 1 FUEL CONTROL The PCM controls the air fuel ratio of the engine by varying fuel injector on time Mass air flow is calculated using the speed density method using engine speed manifold absolute pressure and air temperature change Different fuel calculation strategies are used de pendent on the operational state of the engine During crank mode a prime shot fuel pulse is delivered followed by fuel
135. 180 F Set Condition The oxygen sensor voltage is above 1 5 volts 0158 2 2 O2 SENSOR SHORTED TO VOLTAGE When Monitored With battery voltage greater than 10 4 volts engine running for more than 4 minutes and coolant temperature above 180 F Set Condition The oxygen sensor voltage is above 1 5 volts POSSIBLE CAUSES 025 SENSOR GROUND CIRCUIT OPEN 025 SIGNAL CIRCUIT OPEN 025 SIGNAL CIRCUIT SHORT TO VOLTAGE WIRING HARNESS INTERMITTENT 02 SENSOR PCM 92 DRIVEABILITY 0132 1 1 02 SENSOR SHORTED TO VOLTAGE Continued APPLICABILITY Turn Ignition On With the DRB read the 5 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 gt GoTo 7 Turn the igntion off Disconnect the O2 sensor harness connector Start engine Allow the engine to idle Monitior the 02 sensor voltage on the Is the O2 voltage above 1 2 volts Yes gt GoTo 3 Replace the Oxygen Sensor Perform Powertrain Verification Test VER 5A Turn Ignition Off Disconnect the O2S connector Using Ohmmeter measure the resistance between the 025 Sensor Ground circuit and Engine Ground 15 the resistance below 5 0 ohms No Repair the open circuit Perform the Powertrain Verification Test Ver 5 Yes gt GoTo 4 Using a Voltmeter measure the voltage of the 025 Signal circuit at the 02 Sensor connector 15 the voltage above 9 volts Yes gt Repair
136. 2 263 DRIVEABILITY CHECKING RADIATOR FAN OPERATION WITH NO DTC S Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Radiator Fan Motor harness connector Remove Radiator Fan Relays Measure the Radiator F an Relay Output circuit from both Relays tothe Radiator Fan Motor harness connector 15 the resistance below 5 0 ohms for both High and Low Speed Relay Output circuits Yes gt GoTo 7 No the open Radiator Fan Relay Output Circuit s Perform the Powertrain Verification Test Ver 2 If there are no possible causes remaining replace the Radiator Fan Relay View repair options Repair Replace the Radiator Fan Relay Perform the Powertrain Verification Test Ver 2 264 Symptom CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR POSSIBLE CAUSES ECT WIRING HARNESS INTERMITTENT ECT SENSOR OUT OF CALIBRATION ACTION APPLICABILITY Turn ignition off All Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessa
137. 4 9 volts POSSIBLE CAUSES SENSOR GROUND CIRCUIT OPEN IAT SENSOR SIGNAL CIRCUIT OPEN IAT SENSOR IAT SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE POWERTRAIN CONTROL MODULE WIRING HARNESS INTERMITTENT APPLICABILITY Turn ignition on All With the read the 5 15 the Global Good Trip Counter displayed and equal to zero for P0113 Yes GoTo 2 No gt GoTo 7 Turn the ignition off Disconnect the Sensor harness connector Start the engine and allow it to idle Using Voltmeter measure the Sensor Signal circuit voltage at the Sensor connector Is the voltage above 5 5 volts Yes Repair the short to voltage Perform the Powertrain Verification Test Ver 5 No gt GoTo 3 71 DRIVEABILITY 0113 AIR TEMP SENSOR VOLTAGE HIGH Continued ACTION APPLICABILITY Turn the ignition off Disconnect the IAT Sensor harness connector Turn the ignition on With the DRB in sensors read the Intake Air Tmp Volt value Connect a jumper wire between the Sensor Signal Circuit and the Sensor Ground Circuit at the AT Sensor connector Voltage should change from greater than 4 5 volts to less than 1 0 volt Did the Intake Air Tmp Volt value change from greater than 4 5 volts to less than 1 0 volt Yes Replace the IAT Sensor Perform the Powertrain Verification Test Ver 5 No gt GoTo 4 Turn the ignition off Disconnect the IAT Sen
138. 401 EGR SYSTEM FAILURE 3525 168 P0403 EGR SOLENOID CIRCUIT tavern ceed ee ewes 172 P0404 EGR POSITION SENSOR 175 P0405 EGR POSITION SENSOR VOLTAGE TOO 1 177 P0406 EGR POSITION SENSOR VOLTS TOO 179 0420 1 1 CATALYTIC CONVERTER 182 P0432 2 1 CATALYTIC CONVERTER EFFICIENCY 184 P0441 EVAP PURGE FLOW MONITOR of Cloned nt badd deed 186 P0442 EVAP LEAK MONITOR MEDIUM 040 LEAK DETECTED 188 P0455 EVAP LEAK MONITOR LARGE LEAK DETECTED 188 P0443 EVAP PURGE SOLENOID CIRCUIT ee ek ee ees 191 P0460 FUEL LEVEL UNIT NO CHANGE OVER 193 P0462 FUEL LEVEL SENDING UNIT VOLTS 194 P0463 FUEL LEVEL SENDING UNIT VOLTS 194 VEHICLE SPEED SIGNAL 195 P0505 IDLE AIR CONTROL MOTOR 197 P0551 POWER STEERING SWITCH FAILURE 6 20 26 203 P0700 EATX CONTROLLER DIG PRESENT 525555555 205 P0703 BRAKE SWITCH SENSE CIRCUIT ook bie 206 SWITCH SENSE STATUS DOES NOT CHANGE ON
139. 5 0 ohms Yes Repair the ASD Relay control circuit for a short to ground Perform the Powertrain Verification Test Ver 2 No gt GoTo 5 Turn ignition off All Remove the ASD relay from the PDC Using an ohmmeter measure the resistance between terminals 1 85 and 2 86 of the ASD relay Is the resistance between 50 0 and 90 0 ohms Yes gt GoTo 6 No Replace theASD Relay Perform the Powertrain Verification Test Ver 2 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform Powertrain Verification Test VER 2A At this time the conditions required to set the DTC are not present Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 2A No Test Complete 226 DRIVEABILITY Symptom P1389 NO ASD RELAY OUTPUT VOLTAGE AT PCM E When Monitored and Set Condition P1389 NO ASD RELAY OUTPUT VOLTAGE AT PCM When Monitored With ignition key on battery voltage above 10 4 volts and engine RPM greater than 400 Set Condition voltage
140. 8 Turn ignition off Disconnect the fuel injector no 3 electrical connector Turn ignition on With the DRB actuate fuel injector no 3 Using 12 volt test light connected to ground check the ASD relay output circuit at the injector connector Does the test light illuminate brightly Yes gt GoTo 3 the open high resistance the ASD relay output circuit Note Check fuse in the PDC Perform the Powertrain Verification Test Ver 5 Stop All Actuations 118 0203 3 CONTROL CIRCUIT Continued APPLICABILITY Turn ignition off All Disconnect the fuel injector no 3 electrical connector Note The next test step requires the use of an analog voltmeter Note Pay careful attention to the voltmeter needle in order to have valid test results Connect the positive lead of the voltmeter to a known good 12 volt source B Connect the negative lead of the voltmeter to the fuel injector no 3 driver circuit at the fuel injector no 3 electrical connector Turn ignition on With the DRB actuate fuel injector no 3 and observe the voltmeter needle Does the needle fluctuate Yes gt GoTo 4 No GoTo 5 Stop All Actuations If there no possible causes remaining replace the fuel injector View repair options Repair Replace the fuel injector Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the f
141. A No Test Complete Does the display SRI Mileage Invalid Yes Update the mileage and retest the SRI Memory Perform Powertrain Verification Test VER 1A gt GoTo 4 Compare the SRI Mileage stored with the Instrument Panel Odometer Is the mileage within the specified range displayed on the DRB Yes Test Complete No Update the mileage and retest the SRI Memory Perform Powertrain Verification Test VER 1A With the DRB perform the SRI Memory Test 41 COMMUNICATION Symptom P1697 PCM FAILURE SRI MILE NOT STORED lt When Monitored and Set Condition P1697 PCM FAILURE SRI MILE NOT STORED When Monitored Ignition key on Continuous Set Condition An attempt to program write to the internal EEPROM failed Also checks at powerdown POSSIBLE CAUSES DRB DISPLAYS WRITE FAILURE COMPARE SRI MILEAGE WITH ODOMETER DRB DISPLAYS SRI MILEAGE INVALID DRB DISPLAYS WRITE REFUSED 2ND TIME APPLICABILITY With the DRB perform the SRI Memory Test Does the DRB display Write Failure Yes Replace the Powertrain Control Module Perform Powertrain Verification Test VER 1A No gt GoTo 2 With the DRB perform the SRI Memory Test Does the DRB display Write Refused Yes gt GoTo 3 No gt GoTo 4 Does the DRB display Write Refused again Yes Replace the Powertrain Control Module Perform Powertrain Verificatio
142. APPLICABILITY Turn the ignition on All With the DRB actuate the Low Speed Radiator Fan relay Does the Radiator Fan Relay Cycle on and off Yes gt GoTo 2 gt GoTo 4 Turn the ignition on With the DRB actuate the Radiator Fan relay Wiggle the Wiring Harness from the Relay s to the Powertrain Control Module Did the wiggling interrupt the Radiator Fan Motor cycling Yes Repair as necessary where wiggling caused the cycling to be interrupted Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Turn the ignition off Using the Schematic as a guide inspect the Wiring and Connectors Were any problems found Yes gt Repair as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 241 DRIVEABILITY P1490 LOW SPEED FAN CONTROL RELAY CIRCUIT Continued ACTION APPLICABILITY Turn the ignition off Remove the Radiator Fan Relay Measure the voltage of the Fused Ignition Switch Output circuit at the relay connector Is the voltage above 10 0 volts Yes gt GoTo 5 Repair the open Fused Ignition Switch Output circuit Turn the ignition off Disconnect the PCM harness connector Remove the Radiator Fan Relay Measure the resistance of the Radiator Fan Relay Control Circuit from the Relay to the PCM Is the resistance below 5 0 ohms Yes gt GoTo 6 gt Repair the open Radiator Fan Relay Control Circuit Perform the Powertrain Verifica
143. APPLICABILITY Visually inspect the canister Look for any physical damage any signs of fuel that has entered the canister Any signs of fuel may indicate a bad rollover valve Were any problems found Yes Replace as necessary Perform the Powertrain Verification Test Ver 5 No gt GoTo 2 Visually inspect the Evap purge hose that goes between the Evap canister and the fuel tank Look for any physical damage such as a pinched pugged ripped or dry rotted hose Were any problems found Yes Repair or replace hose as necessary Perform Powertrain Verification Test VER 5 No gt GoTo 3 Canister Look for any physical damage such as a pinched ripped or dry rotted hose Were any problems found Yes Repair or replace hose as necessary Perform Powertrain Verification Test VER 5 gt GoTo 4 Turn ignition off Carefully inspect the Evap Purge Solenoid vacuum supply hose for proper routing Also check for a pinched or plugged hose from the throttle body to the Purge Solenoid Inspect the vacuum nipple at the throttle body for any damage or plugging 15 the vacuum supply hose and throttle body vacuum nipple free from defects Yes gt GoTo 5 No the vacuum supply hose tube as necessary Perform Powertrain Verification Test VER 5 Visually inspect the Evap purge hose that goes from the Purge Solenoid to the Evap 253 DRIVEABILITY CHECKING EVAPORATIVE EMISSION SYSTEM Con
144. ATION Symptom List 600 FAILURE SPI COMMUNICATIONS 601 INTERNAL CONTROLLER FAILURE Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be PO600 PCM FAILURE SPI COMMUNICATIONS When Monitored and Set Condition 0600 FAILURE SPI COMMUNICATIONS When Monitored Ignition key on Set Condition Internal Bus communication failure between processors 0601 INTERNAL CONTROLLER FAILURE When Monitored Ignition key on Set Condition Internal checksum for software failed does not match calculated value POSSIBLE CAUSES PCM INTERNAL OR SPI APPLICABILITY The Powertrain Control Module is reporting internal errors and must be replaced All View repair options Repair Replace the Powertrain Control Module Perform Powertrain Verification Test VER 1A 31 COMMUNICATION Symptom P1685 INVALID SKIM KEY When Monitored and Set Condition P1685 INVALID SKIM KEY When Monitored At ignition key on Set Condition This condition exists when the transponder ID KEY read the SKIM does not match any of the transponder D s stored in the SKIM s memory The following could be new or does not match PCM SKIM or KEY POSSIBLE CAUSES INCORRECT VIN IN PCM INVALID SKIM KEY NOT PRESENT NO VIN PROGRAMMED IN THE PCM PCM DEFECTIVE SKIM TROUBLE CODES SET ACTION APPLICABILITY With the DRB read trouble codes LOOK FOR P1685 Is th
145. BLE CAUSES PCI BUS CIRCUIT SHORTED TO GROUND PCI BUS CIRCUIT SHORTED TO VOLTAGE HIGH VOLTAGE ON THE BUS CIRCUITS AT THE BCM CONNECTORS LOW RESISTANCE TO GROUND ON THE BUS CIRCUITS AT THE BCM CONNECTORS MODULE PCI BUS SHORT TO GROUND MODULE PCI BUS SHORT TO VOLTAGE BODY CONTROL MODULE OPEN PCI BUS CIRCUIT BETWEEN THE DLC AND THE BCM WIRING HARNESS INTERMITTENT APPLICABILITY Note When attempting to communicate with any of the modules on this All vehicle the DRB will display 1 of 2 different communication errors response message BUS Signal Open message Turn the ignition on With the DRB attempt to communicate with the following modules Body Control Module BCM Instrument Cluster MIC Controller Anti lock Brake and the Occupant Restraint Controller ORC Was the DRB able to communicate with any of the modules listed Yes gt GoTo 2 No gt GoTo 3 Turn the ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note If the DRB can not communicate with a single module refer to the category list for the related symptom Were any problems found Yes Repair wiring harness connectors as necessary Perform the Body Verification Test Ver 1 No Test Complete
146. CM Diagnostic Trouble Codes This is to ensure power and All grounds to the PCM are operational Note If the DRB will not read follow the NO RESPONSE PCM SCI only symptom path if vehicle will start For NO START Condi tions follow symptom RESPONSE in Starting catagory Turn ignition off Disconnect the Powertrain Control Module Connect the DRBIII to the Data Link connector Use Scope input cable CH 7058 Cable to Probe adapter CH 7062 and the red and black test probes Connect the scope input cable to the channel one connector on the Attach the red and black leads and the cable to probe adapter to the scope input cable Select DRB Standalone Select lab scope Select Live Select 12 volt square wave Press F2 for Scope Press F2 and use the down arrow to Set voltage range to 20 volts Press F2 again when complete Connect the Black lead to the PCM ground Connect the Red lead to the PCM Bus circuit Turn the ignition on Observe the the voltage displayed on the DRB Lab Scope What is the voltage displayed on the scope Pulse from 0 to approximately 7 5 volts GoTo 8 Steady 0 volts Repair the open PCI Bus circuit to PCM Perform Powertrain Verification Test VER 1A The Powertrain Control Module has an internal open PCI Bus and must be replaced View repair options Repair Replace the Powertrain Control Module Perform Powertrain Verification Test VER 1A Turn ignitio
147. Conditions Window data Utilize the data and try to duplicate the operating conditions at which the DTC was set Pay particular attention to the ECT and RPM for added diagnostics Note Refer to any TSB s that may apply to the symptom Test Complete Repair Test Complete 111 APPLICABILITY All DRIVEABILITY Symptom 201 1 ECTOR 1 CONTROL CIRCUIT When Monitored and Set Condition P0201 I NJ ECTOR 1 CONTROL CIRCUIT When Monitored With battery voltage greater than 10 4 volts the auto shutdown relay energized injector pulse width less than 10ms and engine speed less than 3000 rpm Set Condition This trouble code takes 64 to 10 0 seconds to set when no inductive kick is sensed 18ms after injector turn off and with no other injectors on POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT FUEL INJ ECTOR WIRING HARNESS INTERMITTENT FUEL INJ ECTOR NO 1 DRIVER CIRCUIT OPEN FUEL INJ ECTOR NO 1 DRIVER CIRCUIT SHORTED TO GROUND POWERTRAIN CONTROL MODULE INJ ECTOR DRIVER APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for P 0201 Yes gt GoTo 2 gt GoTo 8 Turn ignition off Disconnect the fuel injector no 1 electrical connector Turn ignition on With the DRB actuate fuel injector no 1 Using 12 volt test light connected to ground check the ASD relay output circuit
148. D CONTROL With the DRB monitor the Speed Control Switch inputs While observing the display press the Coast Switch several times Does the DRBIII show the Coast Switch status change appropriately from Pressed to Released Yes gt GoTo 41 No Replace the Right S C Switch Perform the Powertrain Verification Test Ver 4 Ignition on with engine not running SPEED CONTROL With the read Are any Vehicle Speed Signal codes set Yes Refer to symptom 500 VEHICLE SPEED SIGNAL DRIVEABILITY category GoTo 13 Turn ignition off SPEED CONTROL Disconnect the Speed Control Resume Accel Switch Note Check connectors Clean repair as necessary Using Ohmmeter measure the resistance of the Sensor Ground Circuit from the S C Resume Accel Connector to a good Ground 15 the resistance below 5 0 ohms Yes gt GoTo 14 No Repair the open sensor ground circuit right S C switch connector to the clockspring connector Perform the Powertrain Verification Test Ver 4 290 SPEED CONTROL CHECKING SPEED CONTROL OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Turn ignition off SPEED CONTROL Disconnect both Speed Control Switches Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the Speed Control Switch Signal Circuit and Sensor Ground Circuit from the On Off Switch connector to the Resume Accel c
149. DRB read the Is the Global Good Trip Counter displayed and equal to zero for P 0441 Yes gt GoTo 2 GoTo 8 Visually inspect the vap canister Look for any physical damage any signs of fuel that has entered the canister Any signs of fuel may indicate a bad rollover valve Were any problems found Yes Replace as necessary Perform the Powertrain Verification Test Ver 5 gt GoTo 3 Visually inspect the Evap purge hose that goes between the Evap canister and the fuel tank Look for any physical damage such as a pinched pugged ripped or dry rotted hose Were any problems found Yes Repair or replace hose as necessary Perform Powertrain Verification Test VER 5 No gt GoTo 4 186 441 PURGE FLOW MONITOR Continued ACTION APPLICABILITY Visually inspect the purge hose that goes from the Purge Solenoid to the Canister Look for any physical damage such as a pinched ripped or dry rotted hose Were any problems found Yes Repair or replace hose as necessary Perform Powertrain Verification Test VER 5 No gt GoTo 5 Turn ignition off Carefully inspect the Purge Solenoid vacuum supply hose for proper routing Also check for a pinched or plugged hose from the throttle body to the Purge Solenoid Inspect the vacuum nipple at the throttle body for any damage or plugging 15 the vacuum supply hose and throttle body
150. DRB read the FREEZE FRAME data With this screen attempt to duplicate the condition that has set this fault While using FREEZE FRAME pay particular attention to the fault setting condi tions such as speed temp load and map vacuum Does the Catalyst Efficiency Failure Reoccur Yes gt GoTo 3 Catalytic Conveter Efficiency DTC no longer exists Check the exhaust for excessive smoke from internal oil or coolant leaks Is there an oil or coolant consumption condition present Yes Repair engine mechanical condition as necessary and replace Catalytic Converter Perform the Powertrain Verification Test Ver 2 GoTo 4 184 DRIVEABILITY P0432 2 1 CATALYTIC CONVERTER EFFICIENCY Continued ACTION APPLICABILITY Start Engine and let idle All Check for exhaust leaks between the Engine and the appropriate Downstream 2 Sensor Are there any exhaust leaks Yes Repair or replace leaking exhaust parts as necessary Perform the Powertrain Verification Test Ver 2 No gt GoTo 5 Check the exhaust for excessive smoke from internal oil or coolant leaks Is there an oil or coolant consumption condition present Yes Repair engine mechanical condition as necessary and replace Catalytic Converter Perform the Powertrain Verification Test Ver 2 GoTo 6 Start Engine and let idle Check for exhaust leaks between the Engine and the appropriate Downstream 02 Sensor Are there any exhaust le
151. DRIVE Set Condition The oxygen sensor signal voltage is switching from below 0 27 volts to above 0 62 volts and back fewer times than required POSSIBLE CAUSES EXHAUST LEAK 025 SENSOR GROUND CIRCUIT VOLTAGE DROP 025 SIGNAL CIRCUIT VOLTAGE DROP WIRING HARNESS INTERMITTENT 025 95 DRIVEABILITY 0133 1 1 02 SENSOR SLOW RESPONSE Continued APPLICABILITY Turn Ignition On With the read the DTC s 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 No gt GoTo 6 Start engine Allow engine to idle Check for any exhaust leaks between the Engine and the appropriate O2S Are there any exhaust leaks Yes Repair or replace leaking exhaust parts as necessary Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Turn ignition off Usinga Voltmeter backprobe the O2S Ground ckt using one of the meter leads using the other meter lead backprobe the O2S Ground circuit at the PCM connector Ensure the voltmeter leads are connected for positive polarity Start engine Allow the engine to reach normal operating temperature 15 the voltage below 0 10 volt Yes gt GoTo 4 No Repair high resistance on 025 Sensor Ground circuit Perform the Powertrain Verification Test Ver 5 15 the voltage below 0 10 volt Yes gt GoTo 5 No Repair high resistance on O2S Signal circuit Perform Powertrain Verification Test VER 5A If there no potentia
152. E 340 2 1 lt gt gt 7 6 7 2 J 1 ee PROPORTIONAL PURGE SOLENOID 2 5 i 57 02 SENSOR A AVM 80 9 TRANSMISSION S SENSOR CONN 2 Cia wrw 3 2L AND 3 5L THROTTLE POSITION ae NSOR 5 TRANSMISSION 4 CONN A ANS 2 eS Oe a gt OUTPUT SPEED SENSOR CA INPUT Sarid _ SENSOR 80277319 8 5 FUEL SYSTEM FUEL PUMP MODULE FILTER CANISTER 80b573fe 8 7 SWITCHES BRAKE SWITCH A lt gt lt i eongo lt N lt S 2 5 80627414 80627405 341 2 L 5 5 9 8 7 SWITCHES Continued ee 2 7L Z 3 2L AND 3 5L N T 2 L G Gre gt SWF Ly A 2 BOWER STEERING N gt PRESSUR 5 SENSOR SUPPORT 342 9 0 CONNECTOR PINOUTS BLACK 1 AIC COMPRESSOR CLUTCH PRESSURE TRANSDUCER om ai AMBIENT
153. E CAUSES FUSED B CIRCUIT LESS THAN 10 0 VOLTS FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN PCM GROUND CIRCUIT S OPEN PCM INTERNAL PCI BUS OPEN PCM PCI BUS CIRCUIT OPEN APPLICABILITY Turn Ignition On All Note As soon as one or more module communicates with the DRBIII answer the question With the DRBIII Select THEFT ALARM then select SKIM With the DRBIII Select THEFT ALARM Then select VTSS With the DRBIII Select ANTI LOCK BRAKES With the DRBIII Select BODY Then Select ELECTRO MECHANICAL CLUSTER MIC With the DRBIII Select PASSIVE RESTRAINTS Then select AIRBAG Were you able to establish communication with any of the modules Yes gt GoTo 2 No Refer to symptom BUS COMMUNICATION FAILURE in the COMMUNICATION category Turn ignition off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Turn the ignition key on Use 12 volt test light in the following step With the 12V test light connected to ground probe the Fused Ignition in the PCM Connector Is the test light illuminated and bright Yes gt GoTo 3 No Repair the open or high resistance used Ignition Switch Output Circuit between PCM amp Ignition Switch Perform the Powertrain Verification Test Ver 1 Turn the Ignition Off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Use 12 volt test lig
154. EAR OF THE ENGINE S MOVING PARTS Start engine With the DRB read the MAP Sensor voltage Wiggle MAP Sensor Connector amp Harness Monitor the DRB display Was there any MAP Sensor voltage change Yes Repair the Harness or Connector that caused the voltage change Perform Powertrain Test Verification VER 5A No Test Complete Turn ignition off All Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes gt Repair as necessary Perform Powertrain Test Verification VER 5A No GoTo 17 80 DRIVEABILITY Symptom 122 POSITION SENSOR VOLTAGE LOW eT When Monitored and Set Condition P0122 THROTTLE POSITION SENSOR VOLTAGE LOW When Monitored With the ignition on and battery voltage above 10 4 volts Set Condition Throttle Position Sensor voltage at the PCM is 0 1 volt for 1 3 seconds POSSIBLE CAUSES TRANS CONTROL MODULE TPS VOLTAGE CHANGE NOT SMOOTH TPS CONNECTORS HARNESS INTERMITTENT D TPS HARNESS CONNECTORS INTERMITTENT C TPS HARNESS CONNECTORS OBSERVABLE E TPS 5 VOLT SUPPLY CIRCUIT OPEN TPS 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND TPS SIGNAL CIRCUIT SHORTED TO GROUND TPS SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT THROTTLE POSITION SENSOR VOLTAGE gt 1 0 VOLT POWERTRAIN CONTROL MODULE ACTION APPLICABILITY Ignition On Engine Not Running All With the DRB read the Throttle Position Sensor TP Sensor voltage Is the Throttle
155. ECTOR 337 COMPONENT LOCATIONS 8 4 SENSORS 27 pressure sensor is located in the high pressure line near the A C compressor The connector is a gray connector 2 nO L T 5 80207548 CAMSHAFT SENSOR LBS SS ENGINE COOLANT TEMPERATURE SENSOR 80ad62ad 338 3 2L AND 3 5L A C pressure sensor is located in the high pressure line near the A C compressor The connector is a gray connector oe gt RN lt 1 1 CATALYTIC 80557441 2 7L ENGINE COOLANT 227 CAM SENSOR SENSOR 80b1b46b 5 2 7L 3 2L AND 3 5L MAP AIR TEMPERATURE SENSOR Por DA E 554 aoa s Vi 4 3 2L AND 3 5L 2 7L 2 7 OVE BLOCK 0 2 STARTER Saa EUS 9514 146 339 COMPONENT LOCATIONS 8 4 SENSORS Continued on LO SENSOR J a DA JA PA L 0 5 1 2 AND 2 2 N 2 7 4 7 7 80ad629e PCV VALV
156. EN KNOCK SENSOR SIGNAL OPEN KNOCK SENSOR SIGNAL SHORTED TO GROUND KNOCK SENSOR SIGNAL SHORTED TO SENSOR GROUND KNOCK SENSOR SIGNAL SHORTED TO VOLTAGE PCM ACTION APPLICABILITY Turn the ignition on All With the DRBIII read 5 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 GoTo 8 Turn the ignition off Disconnect the Knock Sensor harness connector Disconnect the PCM harness connector Measure the resistance between ground and the Knock Sensor Signal circuit 15 the resistance below 5 0 ohms Yes Repair the Knock Sensor Signal circuit for a short to ground Perform the Powertrain Verification Test Ver 2 No GoTo 3 141 DRIVEABILITY 25 SENSOR 1 CIRCUIT Continued APPLICABILITY Turn the ignition off Disconnect the Knock Sensor harness connector Disconnect the PCM harness connector Measure the resistance between the Sensor Ground and the Knock Sensor Signal circuit at the Knock Sensor harness connector 15 the resistance below 5 0 ohms Yes Repair the Knock Sensor Signal circuit for a short to sensor ground Perform the Powertrain Verification Test Ver 2 GoTo 4 Turn the ignition off Disconnect the Knock Sensor harness connector Measure the resistance between the Knock Sensor Return Ground circuit and ground 15 the resistance below 5 0 ohms Yes gt GoTo 5 No the open Knock Sensor
157. ER 5A 191 DRIVEABILITY P0443 EVAP PURGE SOLENOID CIRCUIT Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Proportional Purge Solenoid electrical connector Disconnect the Powertrain Control Module harness connector Using Ohmmeter measure the Proportional Purge Solenoid Control circuit from the Proportional Purge Solenoid connector to the PCM connector Is the resistance below 5 0 Ohms Yes gt GoTo 5 No Repair the open Proportional Purge Solenoid Control circuit Perform Powertrain Verification Test VER 5A Turn ignition off Disconnect the Proportional Purge Solenoid electrical connector Disconnect the Powertrain Control Module harness connector Using an Ohmmeter measure the resistance between the Proportional Purge Solenoid Control circuit and ground 15 the resistance below 5 0 Ohms Yes gt Repair the short to ground in the Proportional Purge Solenoid Control circuit Perform Powertrain Verification Test VER 5A GoTo 6 Turn ignition off Disconnect the Proportional Purge Solenoid electrical connector Disconnect the Powertrain Control Module harness connector Using an Ohmmeter measure the resistance between the PWM Purge Sense circuit and ground Is the resistance below 5 0 Ohms Yes Repair the short to ground the PWM Purge Sense circuit Perform Powertrain Verification Test VER 5A gt GoTo 7 If there are no possible causes remaining rep
158. ERING PRESSURE SWITCH SENSE 46 A14 14RD WT FUSED B 47 2711 14BK WT GROUND 48 K40 20BR WT IDLE AIR CONTROL NO 3 DRIVER 49 K60 20YL BK IDLE AIR CONTROL NO 2 DRIVER 50 2712 14BK TN GROUND 51 K141 20TN WT OXYGEN 1 2 SIGNAL 52 53 K341 20PK WT OXYGEN SENSOR 2 2 SIGNAL 54 55 C24 20DB PK LOW SPEED RADIATOR RELAY CONTROL 56 V36 20TN RD SPEED CONTROL VACUUM SOLENOID CONTROL 57 9 20GY RD IDLE AIR CONTROL NO 1 DRIVER 58 K59 20VT BK IDLE AIR CONTROL NO 4 DRIVER 59 D25 20VT YL PCI BUS 60 61 K6 20VT WT 5V SUPPLY 62 29 20WT PK BRAKE SWITCH SENSE 63 110 20YL DG TORQUE MANAGEMENT REQUEST SENSE 64 C28 20DB OR A C COMPRESSOR CLUTCH RELAY CONTROL 65 D21 20PK TN SCI TRANSMIT 66 G7 20WT OR VEHICLE SPEED SENSOR SIGNAL 67 51 20DB YL AUTOMATIC SHUT DOWN RELAY CONTROL 68 52 18PK BK EVAPORATIVE EMISSION SOLENOID CONTROL 69 C27 20DB LG HIGH SPEED RADIATOR FAN RELAY CONTROL 70 K108 18DG LG EVAPORATIVE EMISSION SOLENOID SENSE 71 71 20WT RD EATX RPM SIGNAL 72 107 180R RD LEAK DETECTION PUMP SWITCH SENSE 73 74 K31 20BR FUEL PUMP RELAY CONTROL 75 D20 20LG SCI RECEIVE 76 41 20BR YL TRS T41 SENSE 77 106 18WT DG LEAK DETECTION PUMP SOLENOID CONTROL 78 79 80 V35 20LG RD SPEED CONTROL VENT SOLENOID CONTROL RADIATOR FAN MOTOR ASSEMBLY 4 WAY CAV CIRCUIT FUNCTION 1 71 12BK GROUND 2 71 12BK GROUND 3 C23 12DG LOW SPEED RADIATOR FAN RELAY OUTPUT 4 C25 14YL HIGH SPEED RADIATOR FAN RELAY OUTPUT
159. ERTRAIN CONTROL MODULE C1 40 WAY CAV CIRCUIT FUNCTION 1 94 16TN LG COIL DRIVER 4 2 16TN OR COIL DRIVER NO 3 3 K92 16 COIL DRIVER NO 2 4 K96 16TN LB COIL DRIVER 6 5 82 20YL RD SPEED CONTROL POWER SUPPLY 6 142 1406 08 AUTOMATIC SHUT DOWN RELAY OUTPUT SENSE 7 FUEL INJECTOR 3 DRIVER 8 201806 GENERATOR FIELD DRIVER 9 10 2712 14 GROUND N 11 91 16TN RD COIL DRIVER NO 1 N 12 13 FUEL INJECTOR NO 1 DRIVER 14 58 18BR DB FUEL INJECTOR 6 DRIVER S 15 38 18GY FUEL INJECTOR 5 DRIVER T a IE 5202 16 18LB BR FUEL INJECTOR NO 4 DRIVER 898915 17 2 18 3 21 3 51 FUEL INJECTOR 2 DRIVER R 9 9 89 17 2 18TN WT 2 71 FUEL INJECTOR NO 2 DRIVER in Bo 89 18 K236 18GY PK 3 21 3 51 SHORT RUNNER VALVE SOLENOID CONTROL 9969 19 8 555 20 12 200 FUSED IGNITION SWITCH OUTPUT ST RUN 21 K95 16TN DG COIL DRIVER 5 22 0 23 U POWERTRAIN 24 20DBILG 3 2L 3 5L KNOCK SENSOR SIGNAL T CONTROL 25 K45 18BK VT 2 7L KNOCK SENSOR SIGNAL 5 25 45 20 3 23 51 KNOCK SENSOR RETURN MODULE C1 26 20 ENGINE COOLANT TEMPERATURE SENSOR SIGNAL 27 Ki27 18BK OR OXYGEN SENSOR GROUND 28 29 241 20LG RD OXYGEN SENSOR 2 1 SIGNAL 30
160. ES FUSED B CIRCUIT OPEN RADIATOR FAN GROUND CIRCUIT OPEN RADIATOR FAN MOTOR DEFECTIVE RADIATOR FAN RELAY OUTPUT CIRCUIT OPEN RADIATOR FAN RELAY ACTION APPLICABILITY Turn the ignition on With the DRB actuate the High and Low Speed Radiator Fan relays Did the Radiator Fan Motor Cycle on and off during both actuations Yes Test Complete No GoTo 2 Turn the ignition on With the DRB actuate both Radiator Fan relays one at a time Using a 12 Volt Test Light backprobe the appropriate Radiator Fan Relay Output Circuit at the Fan Connector Does the light blink on and off Yes gt GoTo 3 No gt GoTo 5 If there are no possible causes remaining replace the Radiator Fan Motor View repair options Repair Replace the Radiator Fan M otor Perform the Powertrain Verification Test Ver 2 Turn the ignition off Remove the Radiator Fan Relays Using a 12 Volt Test Light check the Fused B Circuit at both Relay Connectors Is the light illuminated and bright at both relay connectors Yes gt GoTo 6 gt Repair the open Fused Circuit s Perform the Powertrain Verification Test Ver 2 Turn the ignition off All Disconnect the Radiator Fan Motor Connector Measure the resistance of both Radiator Fan Ground Circuits to ground Is the resistance below 5 0 ohms for both grounds Yes gt GoTo 4 gt Repair the open Radiator Fan Ground Circuit s Perform the Powertrain Verification Test Ver
161. FUEL INJECTOR NO 6 FUEL PUMP MODULE GENERATOR 2 7L GENERATOR 3 2L 3 5L BLACK CONNECTOR PINOUTS FUEL INJECTOR NO 6 BLACK 2 WAY CAV CIRCUIT FUNCTION 1 58 18BR DB FUEL INJECTOR NO 6 DRIVER 2 F42 18DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT FUEL PUMP MODULE GRAY 4 WAY CAV CIRCUIT FUNCTION 1 71 12BK GROUND 2 71 12BK GROUND 3 G4 12BK FUEL LEVEL SENSOR 4 A141 12DG WT FUEL PUMP RELAY OUTPUT GENERATOR 2 7L 2 WAY CAV CIRCUIT FUNCTION 1 K20 18DG GENERATOR FIELD DRIVER 2 F142 180R DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT GENERATOR 3 2L 3 5L BLACK 2 WAY CAV CIRCUIT FUNCTION 1 K20 18DG GENERATOR FIELD DRIVER F142 180R DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 351 R le i CONNECTOR PINOUTS IDLE AIR CONTROL MOTOR INTAKE AIR TEM PERATURE SENSOR X 2 71 N R s BLACK 0 INTAKE AIR MANIFOLD ABSOLUTE PRESSURE SENSOR 220351 IDLE CONTROL MOTOR BLACK 4 WAY CAV CIRCUIT FUNCTION 1 9 20GY RD IDLE AIR CONTROL NO 1 DRIVER 2 K60 20YL BK IDLE AIR
162. GoTo 5 No Repair the open in the sensor ground circuit Perform the Powertrain Verification Test Ver 2 Turn the ignition off Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Measure the resistance of the EGR sensor signal circuit between the PCM connector and the EGR solenoid connector Is the resistance below 5 0 ohms Yes gt GoTo 6 gt Repair the open in the EGR sensor signal circuit Perform the Powertrain Verification Test Ver 2 Turn the ignition on Disconnect the EGR solenoid harness connector Disconnect the PCM harness connector Measure the resistance from the EGR sensor signal ckt tothe 5 volt supply ckt at the EGR solenoid harness connector 15 the resistance below 5 0 ohms Yes Repair the EGR sensor signal ckt shorted tothe 5 volt supply ckt Perform the Powertrain Verification Test Ver 2 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 2 Note The engine will run rough and possibly stall in the following test Feather the accelerator panel to keep the engine from stalling Start the engine With the DRB enter Engine System Test and then EGR System Test Push the 4 VARIABLE function Monitor the EGR voltage while slowly pushing the up arrow Is the voltage change smooth Yes gt GoTo 9 No R
163. H GROUND CIRCUIT OPEN BRAKE SWITCH SENSE CIRCUIT OPEN PCM BRAKE SENSE BRAKE SWITCH SENSE CIRCUIT BRAKE SWITCH SENSE CIRCUIT SHORT TO GROUND ACTION APPLICABILITY Turn ignition off All Disconnect the Brake Switch Connector Using ohmmeter measure the resistance of the Brake Switch Ground Circuit to a good ground Is the resistance below 5 0 ohms Yes gt GoTo 2 Repair the open Brake Switch Ground Circuit Perform the Powertrain Verification Test Ver 4 Turn ignition off Disconnect the Brake Switch Connector Disconnect the PCM connector Using ohmmeter measure the resistance of the Brake Switch Sense Circuit between the Brake Switch and the PCM Is the resistance below 5 0 ohms Yes gt GoTo 3 Repair the open Brake Switch Sense Circuit Perform the Powertrain Verification Test Ver 4 206 703 SWITCH SENSE CIRCUIT Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Brake Switch Connector Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between the Brake Switch Sense terminal and the Ground terminal measurement taken across switch Apply and release the Brake Pedal while monitoring the onmmeter Does the resistance change from below 5 0 ohms to open circuit Yes gt GoTo 4 Replace Brake Switch Perform the Powertrain Verification Test Ver 4 T
164. HECKING ENGINE MECHANICAL SYSTEMS POSSIBLE CAUSES DRIVEABILITY PROBLEM ENGINE MECHANICAL APPLICABILITY It is suggested to perform the following mechanical checks after all engine electrical All systems and have been repaired or confirmed to be operating properly Warning The following tests be performed with the engine running avoid contact with rotating components ENGINE VACUUM must be at least 13 inches in neutral ENGINE VALVE TIMING must be within specifications ENGINE COMPRESSION must be within specifications ENGINE EXHAUST SYSTEM must be free of any restrictions ENGINE PCV SYSTEM must flow freely ENGINE DRIVE SPROCKET must be properly positioned TORQUE CONVERTER STALL SPEED must be within specifications auto only POWER BRAKE BOOSTER no internal vacuum leaks FUEL must be free of contamination FUEL INJECTOR plugged or restricted injector control wire not connected to correct injector Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 251 DRIVEABILITY Symptom CHECKING ENGINE VACUUM POSSIBLE CAUSES DRIVEABILITY PROBLEM ENGINE MECHANICAL ACTION APPLICABILITY Ignition Off All Connect a vacuum gauge to the engine Start engine and allow engine to idle for at least one minute Note A normal vacuum reading will vary according to the altitude While monitoring the vacuum gauge snap
165. HORTED TO GROUND POWERTRAIN CONTROL MODULE INJ ECTOR DRIVER APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for P 0205 Yes gt GoTo 2 gt GoTo 8 Turn ignition off Disconnect the fuel injector no 5 electrical connector Turn ignition on With the DRB actuate fuel injector no 5 Using 12 volt test light connected to ground check the ASD relay output circuit at the injector connector Does the test light illuminate brightly Yes gt GoTo 3 the open high resistance the ASD relay output circuit Note Check fuse in the PDC Perform the Powertrain Verification Test Ver 5 Stop All Actuations 124 0205 1 5 CONTROL CIRCUIT Continued APPLICABILITY Turn ignition off All Disconnect the fuel injector no 5 electrical connector Note The next test step requires the use of an analog voltmeter Note Pay careful attention to the voltmeter needle in order to have valid test results Connect the positive lead of the voltmeter to a known good 12 volt source B Connect the negative lead of the voltmeter to the fuel injector no 5 driver circuit at the fuel injector no 5 electrical connector Turn ignition on With the DRB actuate fuel injector no 5 and observe the voltmeter needle Does the needle fluctuate Yes gt GoTo
166. ICAL 6 251 CHEGRING ENGINE VACUUM 252 EVAPORATIVE EMISSION 5 253 CHECKING FUEL DELIVERY ai ada airaa 255 IAC MOTOR OPERATION WITH 258 CHECKING MAP SENSOR OPERATION WITH NO 5 260 CHECKING MINIMUM IDLE AIRFLOW 261 CHECKING RADIATOR FAN OPERATION WITH NO 263 THE ENGINE COOLANT TEMPERATURE SENSOR 265 CHECKING THE INTAKE AIR TEMPERATURE 266 CHECKING THE PCM POWER AND 267 CHECKING THROTTLE POSITION SENSOR OPERATION WITH NO DTC S 268 HEATING amp A C P0645 A C CLUTCH RELAY CKT 270 P1598 A C PRESSURE SENSOR VOLTS 272 P1599 A C PRESSURE SENSOR VOLTS 274 CHECKING A C SYSTEM OPERATION WITH 276 SPEED CONTROL P1595 SPEED CONTROL SOLENOID CIRCUITS 278 P1683 SPD CTRL PWR RELAY OR S C 12V DRIVER 278 P1597 SPEED CONTROL SWITCH ALWAYS 285 CHECKING SPEED CONTROL OPERATION WITH DTC
167. IN CONTROL MODULE IAC DRIVER ACTION APPLICABILITY Turn ignition on All With the DRB read the DTC s 15 the Global Good Trip Counter displayed and equal to zero for P0505 Yes gt GoTo 2 GoTo 22 197 P0505 IDLE AIR CONTROL MOTOR CIRCUITS Continued ACTION APPLICABILITY Start engine and let idle Disconnect the IAC Motor Connector Note Check connectors Clean repair as necessary Using a Voltmeter measure the voltage of the IAC 1 Driver Circuit Was the voltage over 5 0 volts at any time Yes gt GoTo 3 GoTo 19 Start engine and let idle Disconnect the Motor Connector Note Check connectors Clean repair as necessary Using a Voltmeter measure the voltage of the IAC 2 Driver Circuit Was the voltage over 5 0 volts at any time Yes gt GoTo 4 GoTo 16 Start engine and let idle All Disconnect the IAC Motor Connector Note Check connectors Clean repair as necessary Using a Voltmeter measure the voltage of the IAC 8 Driver Circuit Was the voltage over 5 0 volts at any time Yes gt GoTo 5 No GoTo 13 Start engine and let idle Disconnect the Motor Connector Note Check connectors Clean repair as necessary Using a Voltmeter measure the voltage of the 4 Driver Circuit Was the voltage over 5 0 volts at any time Yes gt GoTo 6 GoTo 10 Ignition Off Disconnect Connector Disconnect the
168. IN RELATED CIRCUIT ACTION APPLICABILITY Note The best way to diagnose this DTC is to allow the vehicle to sit overnight outside order to have totally cold soaked engine Note Extremely cold outside ambient temperatures may have caused this DTC to set Warning Never open the cooling system when the engine is hot The system is under pressure Extreme burns or scalding may result Allow the engine to cool before opening the cooling system Check the coolant system to make sure that the coolant is in good condition and at the proper level 15 the coolant level and condition OK Yes gt GoTo 2 No Adjust coolant level as necessary Perform verification test Ver 2A 87 P0125 CLOSED LOOP TEMP NOT REACHED Continued ACTION APPLICABILITY Note This test works best if performed on a cold engine cold soak All Turn the ignition on With the DRB in sensors read the Eng Coolant Tmp Deg value If the engine was allowed to sit overnight cold soak the temperature value should be a sensible value that is somewhere close to the surrounding temperature ambient temperature Note If engine coolant temperature is above 82 180 F allow the engine to cool until 65 C 150 is reached Start the Engine During engine warm up monitor the Eng Coolant Tmp Deg value The temp deg value change should be a smooth transition from start up to normal operating temp 180 Also mo
169. IRROR OR OPERATE IT YOURSELF HAVE AN ASSISTANT AVAILABLE TO OPERATE THE DRB 4 3 2 VEHICLE DAMAGE CAUTIONS Before disconnecting any control module make sure the ignition is off Failure to do so could damage the module When testing voltage or continuity at any control module use the terminal side not the wire end of the connector Do not probe a wire through the insulation this will damage it and eventually cause it to fail because of corrosion Be careful when performing electrical tests so as to prevent accidental shorting of terminals Such mistakes can damage fuses or components Also a second code could be set making diagnosis of the original problem more difficult 4 3 3 ELECTRONIC PINION FACTOR WARNING The pinion factor must be set for all new trans mission control modules If the pinion factor is not set or if it is set incorrectly any speed related accessories will not operate or will operate inaccu rately This includes the speedometer speed con trol rolling door locks and other devices that are operated by the powertrain and body control mod ules For instructions on setting the pinion factor see the appropriate transmission diagnostic man ual or the service manual 5 0 REQUIRED TOOLS AND EQUIPMENT DRBIII diagnostic readout box scan tool Evaporative System Diagnostic Kit 6917 fuel filler adapter 6922 fuel pressure adapter C 6631 or 6539 fuel pressure kit C 4799 B or 5069 fue
170. ISSION CONTROL RELAY OUTPUT N TRANSMISSION 7 16WT 2 4 SOLENOID CONTROL SOLENOID PRESSURE 8 7120 16LB LOW REVERSE SOLENOID CONTROL E SWITCH ASSEMBLY BLACK VEHICLE SPEED CONTROL SERVO BLACK 4 WAY N CAV CIRCUIT FUNCTION 4 1 1 36 20TN RD SPEED CONTROL VACUUM SOLENOID CONTROL U 2 V35 20LG RD SPEED CONTROL VENT SOLENOID CONTROL T V30 20DB RD SPEED CONTROL BRAKE SWITCH OUTPUT 5 VEHICLE SPEED 4 71 20BK GROUND CONTROL SERVO 367 NOTES SCHEMATICS 10 0 SCHEMATIC DIAGRAMS 10 1 ENGINE CONTROLS 2000 TO IGN SW TO a Ses 10A STARTER RELAY 2 FUEL ASD PUMP 20 RELAY RELAY RIGHT DOWNSTREAM 02 SENSOR HEATER GROUND 20 LEFT DOWNSTREAM 02 SENSOR POWERTRAIN CONTROL SENSOR ASD OUTPUT LEFT UPSTREAM 02 SENSOR SENSOR GROUND RIGHT UPSTREAM 02 SENSOR 000 000 090 000 000 000 EOE FUEL PUMP NJECTOR 1 w 7 INJECTOR 2 eme SENSOR SENSOR GROUND A C PRESSURE TRANSDUCER 8800 INJECTOR 3 6 4 INJECTOR 5 5 4 INJECTOR 6 SC SERVO TO SC SERVO 56
171. KING EVAP EMISSION SYSTEM CHECKING SECONDARY IGNITION SYSTEM CHECKING PCM POWER AND GND CKT CHECKING THE FUEL PRESSURE CHECKING THE MINIMUM IDLE AIR FLOW CHECKING FOR OXYGEN SENSOR SWITCHING CHECKING IDLE AIR CON TROL MOTOR OPERATION CHECKING EGR SYSTEM CHECKING SECONDARY IGNITION SYSTEM CHECKING PCM POWER AND GND CKT CHECKING THE FUEL PRESSURE CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW CHECKING FOR OXYGEN SENSOR SWITCHING CHECKING EGR SYSTEM CHECKING SECONDARY IGNITION SYSTEM POOR FUEL ECONOMY CHECKING PCM POWER AND GND CKT CHECKING ENGINE VAC UUM CHECKING THE FUEL PRESSURE CHECKING COOLANT SEN SOR CALIBRATION CHECKING THROTTLE PO SITION SENSOR CALIBRA TION CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW CHECKING FOR OXYGEN SENSOR SWITCHING CHECKING O2S HEATER CHECKING IDLE AIR CON TROL MOTOR OPERATION CHECKING ENGINE ME CHANICAL SYSTEMS CHECKING EVAP EMISSION SYSTEM CHECKING EGR SYSTEM CHECKING IAT SENSOR CHECKING PNP SWITCH CHECKING SECONDARY IGNITION SYSTEM CHECKING PCM POWER AND GND CKT CHECKING ENGING VAC UUM CHECKING THE FUEL PRESSURE CHECKING COOLANT SEN SOR CALIBRATION CHECKING THROTTLE PO SITION SENSOR CALIBRA TION CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW CHECKING FOR OXYGEN SENSOR SWITCHING CHECKING O2S HEATER CHECKING IDLE AIR CO
172. LD NOT SWITCHING PROPERLY When Monitored With the ignition key on and the engine running Set Condition When the PCM tries to regulate the generator field with no result during monitoring POSSIBLE CAUSES GENERATOR FIELD WIRING HARNESS INTERMITTENT PROBLEM GENERATOR FIELD WIRING HARNESS OBSERVABLE PROBLEM ASD RELAY OUTPUT CIRCUIT OPEN GENERATOR FIELD DRIVER CIRCUIT OPEN GENERATOR FIELD DRIVER CIRCUIT SHORTED TO GROUND GENERATOR FIELD RESISTANCE gt 5 0 OHMS POWERTRAIN CONTROL MODULE ACTION APPLICABILITY Ignition On Engine Not Running All With the DRB actuate the Generator Field Driver Circuit Using a 12 volt test light backprobe the Generator Field Driver Circuit at the back of the Generator Did the light blink Yes gt GoTo 2 No gt GoTo 4 Ignition On Engine Not Running With the DRB actuate the Generator Field Driver Circuit Note Actuator Test should still be running Wiggle Wiring Harness from the Generator to PCM With the DRB read Codes Does the Generator Field Driver Circuit code return Yes Repair as necessary where wiggling caused problem to appear Perform the Powertrain Verification Test Ver 3 No gt GoTo 3 Turn ignition off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 3 No Test Complete CHARGING P0622 GENERATOR FIELD NOT SWITCHING PROPERLY
173. M Connector Is the test light illuminated and bright No Repair the fused B circuit for High resistance If open circuit PCM will show NO RESPONSE Perform Powertrain Verification Test VER 1A GoTo 2 Turn ignition off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Turn the ignition key on Use a 12 volt test light in the following step With the 12V test light connected to ground probe the Fused Ignition in the PCM Connector Is the test light illuminated and bright Yes gt GoTo 3 No the open or high resistance F used I gnition Switch Output Circuit between PCM amp Ignition Switch Perform the Powertrain Verification Test Ver 1 Turn ignition off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Use 12 volt test light in the following step Connect 12V test light to B Probe the Ground Circuits one at a time in the PCM Connector Was the light illuminated and bright in each circuit Yes gt Test Complete No Repair the ground s for an open or high resistance at the Powertrain Control Module Perform the Powertrain Verification Test Ver 1 267 DRIVEABILITY Symptom CHECKING THROTTLE POSITION SENSOR OPERATION WITH NO DTC S POSSIBLE CAUSES TPS VOLTAGE CHANGE NOT SMOOTH TPS CONNECTORS HARNESS INTERMITTENT D TPS HARNESS CONNECTORS INTERMITTENT C
174. Monitored Ignition on and battery voltage above 10 4 volts Set Condition The fuel level sensor signal voltage goes below 0 4 volts for more than 90 seconds P0463 FUEL LEVEL SENDING UNIT VOLTS TOO HIGH When Monitored Ignition on and battery voltage above 10 4 volts Set Condition The fuel level sensor signal voltage at the PCM goes above 9 9 volts for more than 90 seconds POSSIBLE CAUSES FUEL PUMP MODULE WIRING HARNESS INTERMITTENT APPLICABILITY With the read the 5 All Is the Warm up Cycle counter equal to zero for P0462 Yes Refer to symptom FUEL LEVEL SENDING UNIT FAILURE in the INSTRUMENT CLUSTER category No gt GoTo 2 Note Visually inspect the wiring harness leading to the fuel pump module Look for any parts of the wiring harness that may be pinched or rubbed through Turn ignition on With the DRB monitor the fuel level sensor voltage Using the wiring diagrams for harness and connector location wiggle the Fuel Pump Module harness and related connectors Was there any fuel level sensor voltage change Yes Repair the wiring harness as necessary Perform Powertrain Verification Test VER 2A No Test Complete 194 DRIVEABILITY Symptom 500 VEHICLE SPEED SIGNAL When Monitored and Set Condition 0500 VEHICLE SPEED SIGNAL When Monitored With the engine running transmission not in park or neutral brakes not applied and engine rpm
175. N TROL MOTOR OPERATION CHECKING ENGINE ME CHANICAL SYSTEMS CHECKING EVAP EMISSION SYSTEM CHECKING EGR SYSTEM CHECKING IAT SENSOR CHECKING PNP SWITCH 3 4 USING THE DRBIII Refer to the DRBIII user s guide for instructions and assistance with reading trouble codes erasing trouble codes and other DRBII functions 3 5 DRB ERROR MESSAGES AND BLANK SCREEN Under normal operation the DRBIII will dis play one of only two error messages User Requested WARM Boot Requested COLD Boot This is asample of such an error message display ver 2 14 date 26 J ul93 file key_itf cc date J ul 26 1993 line 548 err 0x1 User Requested COLD Boot or User Press MORE to switch between this display and the application screen Press F4 when done noting information 3 5 1 DRB DOES NOT POWER UP If the 5 do not light no sound is emitted at start up check for loose cable connections or a bad cable Check the vehicle battery voltage data link connector cavity 16 A minimum of 11 volts is required to adequately power the DRBIII If all connections are proper between the DRBIII and vehicle or other devices and the vehicle battery is fully charged an inoperative DRBIII may be the result of a faulty cable or vehicle wiring For a blank screen refer to the appropriate body diagnostics manual 3 5 2 DISPLAY IS NOT VISIBLE Low temperatures will affect the visibility of the displa
176. N CONTROL MODULE IAC DRIVER APPLICABILITY Start the engine With the DRB in Systems Test perform the IAC Wiggle Test Note The idle speed should raise and lower with the display Does the Idle Speed raise and lower properly Yes Test Complete No GoTo 2 Start engine and let idle Disconnect the Motor Connector Note Check connectors Clean repair as necessary Using a Voltmeter measure the voltage of each IAC Driver Circuit at the IAC connector Was the voltage over 5 0 volts at any time on each circuit Yes gt Test Complete No GoTo 3 Yes gt GoTo 4 No Repair the open IAC Driver Circuit Perform the Powertrain Verification Test Ver 5 Ignition Off Disconnect the IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the IAC 1 Driver Circuit from the IAC Motor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 5 No Repair the open IAC Driver Circuit Perform the Powertrain Verification Test Ver 5 Ignition Off All Disconnect the IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using Ohmmeter measure the resistance of the 4 Driver Circuit from the IAC Motor Connector to the PCM Connector 15 the resistance below 5 0 ohms
177. N DOWNSTREAM 02 SENSOR ACTION APPLICABILITY With the DRB read the DTCs All Is the GLOBAL GOOD TRIP counter displayed and equal to zero Yes gt GoTo 3 GoTo 2 At this time the Catalyst Efficiency Failure does not exist or is an intermittent problem With the DRB read the FREEZE FRAME data With this screen attempt to duplicate the condition that has set this fault While using FREEZE FRAME pay particular attention to the fault setting condi tions such as speed temp load and map vacuum Does the Catalyst Efficiency DTC Reoccur Yes gt GoTo 3 The Catalytic Conveter Efficiency Failure no longer exists Check the exhaust for excessive smoke from internal oil or coolant leaks Is there an oil or coolant consumption condition present Yes Repair engine mechanical condition as necessary and replace Catalytic Converter Perform the Powertrain Verification Test Ver 2 GoTo 4 182 P0420 1 1 CATALYTIC CONVERTER EFFICIENCY Continued ACTION APPLICABILITY Start Engine and let idle All Check for exhaust leaks between the Engine and the appropriate Downstream 2 Sensor Are there any exhaust leaks Yes Repair or replace leaking exhaust parts as necessary Perform the Powertrain Verification Test Ver 2 No gt GoTo 5 NOTE A new Downstream O2 Sensor along with an aging Upstream O2 Sensor may cause this trouble code to set Review vehicle repair history
178. N SENSOR VOLTAGE HIGH ETE When Monitored and Set Condition P0123 THROTTLE POSITION SENSOR VOLTAGE HIGH When Monitored With the ignition on and battery voltage above 10 4 volts Set Condition Throttle Position Sensor voltage at the PCM goes above 4 5 volts for 3 2 seconds POSSIBLE CAUSES TRANS CONTROL MODULE TPS VOLTAGE CHANGE NOT SMOOTH TPS CONNECTORS HARNESS INTERMITTENT D TPS HARNESS CONNECTORS INTERMITTENT C TPS HARNESS CONNECTORS OBSERVABLE E THROTTLE POSITION SENSOR GROUND CIRCUIT OPEN TPS SIGNAL OR S C SWITCH SIGNAL CIRCUIT SHORTED TO VOLTAGE THROTTLE POSITION SENSOR SIGNAL CIRCUIT OPEN TPS SIGNAL CIRCUIT SHORTED TO 5 VOLT SUPPLY CIRCUIT TPS VOLTAGE lt 1 0 VOLT POWERTRAIN CONTROL MODULE APPLICABILITY Ignition On Engine Not Running All With the DRB read the Throttle Position Sensor voltage 15 the Throttle Position Sensor voltage above 4 5 volts Yes gt GoTo 2 GoTo 9 Turn the ignition off Disconnect the TPS Connector harness connector Disconnect the PCM Connector harness connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the Sensor Ground Circuit between the TPS and the Powertrain Control Module harness connectors 15 the resistance below 5 0 ohms Yes gt GoTo 3 No Repair the open TP Sensor Ground Circuit Perform the Powertrain Verification Test Ver 5 84 DRIVEABILITY P0123 THROTTLE PO
179. N TESTS Verification Tests Continued BODY VERIFICATION TEST VER 1 1 Disconnect all jumper wires and reconnect all previously disconnected components and connectors 2 the Sentry Key mmobilizer Module SKIM or the Powertrain Control Module PCM were replaced proceed to number 6 If the SKIM or PCM were not replaced continue to the next number 3 If the Body Control Module was replaced turn the ignition for 15 seconds to learn VIN or engine may not start if VTSS equipped If the vehicle is equipped with VTSS use the and enable VTSS 4 Program all other options as needed 5 If any repairs were made to the HVAC System disconnect the battery or using the recalibrate the HVAC doors Proceed to number 13 6 Obtain the Vehicle s unique PIN number assigned to it s original SKIM module from either the vehicle s invoice or from Chrysler s Customer Center 1 800 992 1997 7 With the DRBIII select THEFT ALARM SKIM MISCELLANEOUS and select Skim Module Replaced function Enter the 4 digit PIN number to put SKIM in Access Mode 8 The will prompt you through the following steps 1 Program the country code into the 5 5 memory 2 Program the vehicle s VIN number into the 5 5 memory 3 Transfer the vehicle s Secret Key data from the PCM 9 Once secured access mode is active the SKIM will remain in that mode for 60 seconds 10 Using the DRBIII program all custom
180. ND STALL CONDITION Continued APPLICABILITY Ignition On Engine Not Running All With the DRBIII read the TPS voltage While monitoring the DRBIII slowly open and close the Throttle Is the voltage change smooth Yes gt GoTo 3 Replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Ignition On Engine Not Running With the DRB read TP Sensor voltage Throttle must be against stop Is the voltage 0 92 or less with the Throttle closed Yes gt GoTo 4 No Check for a binding throttle condition If OK replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Turn the ignition on With the DRB in I nputs Outputs read the Theft Security status Does the Veh Theft Security status read Fuel Yes gt GoTo 5 No Refer to the Symptom list for problems related to Vehicle Theft Security Make sure the PCI Bus is functional and that the SKIM 15 communicating on the PCI Bus Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Turn ignition on With the actuate the ASD Fuel System test Using a 12 volt test light connected to ground check the fuel pump relay output circuit A14
181. NNECTOR PINOUTS JUNCTION BLOCK BACK X EER R 1324 1324 JUNCTION BLOCK BODY CONTROL MODULE JB 4 2 356 CONNECTOR PINOUTS JUNCTION BLOCK BODY CONTROL MODULE JB CAV CIRCUIT FUNCTION 1 7 GROUND 2 M2 COURTESY LAMP DRIVER 2 576 SPEED PROPORTIONAL STEERING SOLENOID 4 877 SPEED PROPORTIONAL STEERING SOLENOID 5 065 FUSED IGNITION SWITCH OUTPUT ST RUN 6 17 PARK LAMP RELAY OUTPUT 7 FUSED 8 P2 DECKLID RELEASE CONTROL 9 10 1025 PCI BUS OTIS 11 12 13 P109 DRIVER FRONT DOOR UNLOCK RELAY CONTROL 14 L307 LOW BEAM RELAY CONTROL 15 P38 DOOR LOCK RELAY CONTROL 16 L308 PARK LAMP RELAY CONTROL 17 126 FOG LAMP RELAY CONTROL 18 3 HORN RELAY CONTROL 19 P36 DOOR UNLOCK RELAY CONTROL 20 22 GROUND GRAY KNOCK SENSOR 2 7L GRAY 2 WAY N CAV CIRCUIT FUNCTION 1 K4 18BK LB SENSOR GROUND E 2 45 18BK VT KNOCK SENSOR RETURN KNOCK SENSOR T 2 7L R P BLACK 0 KNOCK
182. NTROL P1597 SPEED CONTROL SWITCH ALWAYS LOW Continued ACTION APPLICABILITY Turn ignition off SPEED CONTROL Disconnect the S C RESU Switch Note Check connectors Clean repair as necessary Turn ignition on with engine not running With the DRB read the S C Switch volts in Sensors Did the S C Switch volts go above 4 0 volts Yes Replace the Resume Accel Switch Perform the Powertrain Verification Test Ver 4 gt GoTo 4 Disconnect the clockspring connector instrument panel wiring side SPEED CONTROL Turn ignition on with engine not running With the DRB read the S C Switch volts in Sensors Did the S C Switch volts change to 5 0 volts Yes Replace the Clockspring Perform the Powertrain Verification Test Ver 4 No gt GoTo 5 Turn ignition off SPEED CONTROL Disconnect the S C ON OFF Switch Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance between the S C Signal Circuit and the Sensor Ground Circuit at the ON OFF switch connector Is the resistance below 5 0 ohms Yes Repair S C Signal Circuit shorted to Sensor Ground Perform the Powertrain Verification Test Ver 4 gt GoTo 6 Turn ignition off SPEED CONTROL Disconnect the S C ON OFF Switch Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary With an Ohmmeter measure resist
183. OL CIRCUIT Continued APPLICABILITY At this time the conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform wiggletest of the injector wiring whilethe engineis running Listen for the engine to miss or stall Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 126 Symptom 0206 1 ECTOR 6 CONTROL CIRCUIT When Monitored and Set Condition P0206 I NJ ECTOR 6 CONTROL CIRCUIT When Monitored With battery voltage greater than 10 4 volts the auto shutdown relay energized injector pulse width less than 10ms and engine speed less than 3000 rpm Set Condition This trouble code takes 64 to 10 0 seconds to set when no inductive kick is sensed 18ms after injector turn off and with no other injectors on POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPU
184. ONTROL OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Turn ignition off SPEED CONTROL Using the Schematics as a guide inspect the Wiring and Connectors Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 4 No GoTo 3 Ignition on with engine running SPEED CONTROL With the DRB monitor the Speed Control Switch inputs While observing the display press the On Off Switch several times Does the DRB show On Off Switch pressed and released Yes gt GoTo 4 No GoTo 16 Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo Connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the Ground Circuit at the Servo Connector to ground Is the resistance below 5 0 ohms Yes gt GoTo 5 No Repair open Ground Circuit at S C Servo Connector Perform the Powertrain Verification Test Ver 4 Ignition on with engine not running SPEED CONTROL With the DRB monitor the P N Switch inputs While observing the display move the Gear Selector to DRIVE Does the show P N switch Yes gt GoTo 6 No Refer CHECKING PARK NETURAL SWITCH OP ERATION in the TRANSMISSION category Inspect the throttle cable and linkage for any binding or damage SPEED CONTROL 15 the cable or linkage disconnected or damaged Yes gt Repair as necessary Perform the Powertrain Verific
185. ORMATION 2 Use the DRB and select THEFT ALARM SKIM then MISCELLANEOUS 3 Select PROGRAM IGNITION KEYS 4 Enter secured access mode by entering the vehi cle four digit PIN NOTE A MAXIMUM OF EIGHT KEYS CAN BE LEARNED TO EACH SKIM ONCE A KEY IS LEARNED TO A SKIM IT THE KEY CANNOT BE RANFERRED TO ANOTHER VEHICLE If ignition key programming is unsuccessful the DRB will display one of the following messages Programming Not Attempted The DRB at tempts to read the programmed key status and there are no keys programmmed in the SKIM memory Programming Key Failed Possible Used Key From Wrong Vehicle SKIM is unable to program key due to one of the following faulty ignition key transponder ignition key is programmed to another vehicle 8 Keys Already Learned Programming Not Done SKIM transponder ID memory is full 1 Obtain ignition keys to be programmed from customer 8 keys maximum 2 Using the erase all ignition keys by select ing MISCELLANEOUS and ERASE ALL CURRENT IGN KEYS 3 Program all ignition keys Learned Key In Ignition Ignition key tran sponder ID is currently programmed SKIM mem ory 3 3 DIAGNOSTIC TROUBLE CODES Each diagnostic trouble code is diagnosed by following a specific testing procedure The diagnos tic test procedures contain step by step instructions for determining the cause of trouble codes as well as no trouble code
186. P MONITOR FAILURE OBSTRUCTION IN EVAP SYSTEM BETWEEN EVAP CANISTER AND FUEL TANK OBSTRUCTION IN HOSE TUBE BETWEEN EVAP CANISTER AND PURGE SOLENOID ACTION APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for P1486 Yes gt GoTo 2 gt GoTo 6 236 DRIVEABILITY P1486 E VAP LEAK MONITOR PINCHED HOSE FOUND Continued ACTION APPLICABILITY To continue testing you will need Miller Tools 6872 System Pressure Pump All and 8382 Gas Cap Tester Adapter Warning The test equipment is designed to be used to pressurize the vehicles Evaporative System only Using the equipment in a manner for which it was not designed could be harmful Warning Keep lighted cigarettes sparks flames and other ignition sources away from the test area to prevent the ignition of explosive gases Keep the test area well ventilated Note The fuel tank should have between 3 and 9 gallons of fuel to properly test the system Attach the power source clip red of Miller Tool 6872A to Battery and the ground clip black to Battery Perform the Evaporative System Pressure Pump self test that is specified on the tester cover Remove gas cap and install Miller Tool 8382 on vehicle Install gas cap to Miller Tool 8382 Attach the pressure supply hose from Miller Tool 6872A to the fitting on 8382 Disconnect the vacuum supply hose at the L
187. PCI Bus circuit that previously measured above 7 0 volts Is the voltage steadily above 7 0 volts with the module disconnected Yes Repair the PCI Bus circuit that measured over 7 0 volts for short to voltage Perform the Body Verification Test Ver 1 Replace the module that caused the short to voltage on the Bus circuit Perform the Body Verification Test Ver 1 Note Determine which modules this vehicle is equipped with before begin All ning Turn the ignition off Disconnect the BCM harness connectors and remove the Body Control Module from the J unction Block Turn the ignition on Measure the voltage of each PCI Bus circuit at the BCM 4 connectors and at the J unction Block Body Control Module connector cavity 10 57 COMMUNICATION PCI BUS COMMUNICATION FAILURE Continued ACTION APPLICABILITY Note Determine which modules this vehicle is equipped with before begin All ning Turn the ignition off Disconnect the negative battery cable Disconnect the BCM harness connectors and remove the Body Control Module from the J unction Block Measure the resistance between ground and each of the PCI Bus circuits at the BCM 4 connectors and at the J unction Block Body Control Module connector cavity 10 Is the resistance below 100 0 ohms for any of the measurements Yes gt GoTo 10 No Replace the Body Control Module Perform the Body Verification Test
188. PCM can fine tune injector pulse width Fine tuning injector pulse width allows the PCM to achieve the lowest emission levels while maintain ing optimum fuel economy The engine start up crank engine warm up and wide open throttle modes are open loop modes Under most operating conditions closed loop modes occur with the engine at operating temperature IGNITION SWITCH ON ENGINE OFF MODE When the ignition switch activates the fuel injec tion system the following actions occur 1 The PCM determines atmospheric air pressure from the MAP sensor input to determine basic fuel strategy 2 The PCM monitors the engine coolant tempera ture sensor and throttle position sensor input The PCM modifies fuel strategy based on this input When the key is in the on position and the engine is not running zero rpm the auto shut down relay and fuel pump relay are not energized Therefore voltage is not supplied to the fuel pump ignition coil and fuel injectors Engine Start up Mode This is an open loop mode The following actions occur when the starter motor is engaged 1 The auto shutdown and fuel pump relays are energized the PCM does not receive the cam shaft and crankshaft signal within approxi mately one second these relays are de energized 2 The PCM energizes all fuel injectors until it determines crankshaft position from the cam shaft and crankshaft signals The PCM deter mines crankshaft position with
189. PERATION CHECKING ENGINE ME CHANICAL SYSTEMS CHECKING EVAP EMISSION SYSTEM CHECKING EGR SYSTEM CHECKING IAT SENSOR CHECKING PNP SWITCH CHECKING SECONDARY IGNITION SYSTEM CHECKING PCM POWER AND GND CKT CHECKING THE FUEL PRESSURE CHECKING COOLANT SEN SOR CALIBRATION CHECKING THROTTLE PO SITION SENSOR CALIBRA TION CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW GENERAL INFORMATION LACK OF POWER SLUGGISH SPARK KNOCK DETONATION CHECKING FOR OXYGEN SENSOR SWITCHING CHECKING IDLE AIR CON TROL MOTOR OPERATION CHECKING EVAP EMISSION SYSTEM CHECKING SECONDARY IGNITION SYSTEM CHECKING PCM POWER AND GND CKT CHECKING THE FUEL PRESSURE CHECKING COOLANT SEN SOR CALIBRATION CHECKING THROTTLE PO SITION SENSOR CALIBRA TION CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW CHECKING FOR OXYGEN SENSOR SWITCHING CHECKING IDLE AIR CON TROL MOTOR OPERATION CHECKING EGR SYSTEM CHECKING SECONDARY IGNITION SYSTEM CHECKING PCM POWER AND GND CKT CHECKING THE FUEL PRESSURE CHECKING COOLANT SEN SOR CALIBRATION CHECKING THROTTLE PO SITION SENSOR CALIBRA TION CHECKING MAP SENSOR CALIBRATION CHECKING THE MINIMUM IDLE AIR FLOW CHECKING FOR OXYGEN SENSOR SWITCHING GENERAL INFORMATION CUTS OUT MISSES BACKFIRE POPBACK RUNS ROUGH UNSTABLE ERRATIC IDLE CHECKING IDLE AIR CON TROL MOTOR OPERATION CHEC
190. Position Sensor voltage below 0 2 volt Yes gt GoTo 2 No gt GoTo 10 Turn the ignition off Disconnect the TP sensor harness connector Turn the ignition on Turn the ignition off With the DRB read the Throttle Position Sensor voltage Is the voltage above 1 0 volt Yes Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 No GoTo 3 81 DRIVEABILITY 0122 POSITION SENSOR VOLTAGE LOW Continued APPLICABILITY Turn the ignition off Disconnect the Throttle Position Sensor Note Check connectors Clean repair as necessary Turn the ignition on Using a Voltmeter measure the Throttle Position Sensor 5 Volt Supply Circuit at the TPS Connector Is the voltage below 4 0 volts Yes gt GoTo 4 No gt GoTo 6 Disconnect the Throttle Position Sensor harness connector Disconnect the PCM harness connector Using an ohmmeter measure the resistance of the TPS 5 Volt Supply Circuit between the TPS connector and ground Is the resitance below 5 0 ohms Yes gt Repair the TPS 5 Volt Supply Circuit for a short to ground Perform Powertrain Verification Test VER 5A No gt GoTo 5 Disconnect the Throttle Position Sensor harness connector All Disconnect the PCM harness connector Using an ohmmeter measure the resistance of the TPS 5 Volt Supply Circuit between the TPS and the PCM harness conectors 15 the resistance below 5 0 ohms
191. Powertrain Verification Test VER 1A Turn ignition off Disconnect the ASD Relay With an Ohmmeter measure the ASD Relay Output Circuit resistance in the ASD Relay Connector to ground Is the resistance below 5 0 ohms Yes gt GoTo 9 gt GoTo 17 308 5 NO RESPONSE FROM WITH ANO START CONDITION Continued ACTION APPLICABILITY Turn ignition off Disconnect the Auto Shutdown Relay Disconnect the Oxygen Sensor connectors one at a time With an Ohmmeter measure the ASD Relay Output Circuit for resistance to ground Did the resistance go above 5 0 ohms when any O2 sensor was disconnected Yes Measure the ASD Reay Output Circuit in each O2 Sensor for resistance to ground Replace the O2 Sensor that has continuity to ground Replace F use Perform Powertrain Verification Test VER 1A gt GoTo 10 Turn ignition off Disconnect the Auto Shutdown Relay Disconnect all Oxygen Sensor connectors Disconnect the EGR Solenoid harness connector With an Ohmmeter measure the ASD Relay Output Circuit for resistance to ground Did the resistance go from below 5 0 ohms to above 5 0 ohms Yes Replace the EGR Solenoid Perform Powertrain Verification Test VER 1A No gt GoTo 11 Turn ignition off Disconnect the Auto Shutdown Relay Disconnect all Oxygen Sensor connectors Disconnect the Capacitor With an Ohmmeter measure the ASD Relay Output Circuit for resistance to gro
192. R 1A No Test Complete Note This DTC could have been set if the SKIM module was disconnected or replaced recently Note keys that the customer uses for this vehicle must be tested to verify they are good First verify the correct VIN is in both the PCM and SKIM modules Turn the Ignition key off With the next customer key turn the ignition key on and crank the engine to start If the engine starts that is usually a good key With the DRB read trouble codes LOOK FOR P1685 Is the starts since set counter Zero on the DRB DTC screen for code P1685 Yes Replace the Ignition Key Perform Powertrain Verification Test VER 1A No Test Complete Note If this DTC can not be reset it could have been an actual theft attempt 33 COMMUNICATION Symptom P1686 NO SKIM BUS MESSAGE RECEIVED When Monitored and Set Condition P1686 NO SKIM BUS MESSAGE RECEIVED When Monitored At ignition key on and continuously during engine operation Set Condition This condition exists when a SKIM status bus message was not received from the SKIM module within the last 20 seconds POSSIBLE CAUSES PCM DEFECTIVE WIRING HARNESS INTERMITTENT DEFECT PCI BUS CIRCUIT OPEN FROM PCM TO SKIM ACTION APPLICABILITY Turn ignition on Engine not running All With the DRB read PCM trouble codes LOOK for P1686 15 the starts since set counter the DTC screen for P1686 equal to Zero Yes gt GoTo 2 gt GoTo 4 Turn
193. RIVEABILITY Symptom 117 SENSOR VOLTAGE LOW ENN When Monitored and Set Condition P0117 ECT SENSOR VOLTAGE TOO LOW When Monitored With the ignition on and battery voltage greater than 10 4 volts Set Condition The Engine Coolant Temperature sensor circuit voltage at the PCM goes below 0 8 volt for more than 3 seconds POSSIBLE CAUSES ECT SENSOR SIGNAL CIRCUIT SHORTED TO GROUND ECT SENSOR SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT ECT WIRING HARNESS INTERMITTENT ECT SENSOR POWERTRAIN CONTROL MODULE ACTION APPLICABILITY Turn ignition on All With the DRB read the 5 Is the Global Good Trip Counter displayed and equal to zero for P0117 Yes gt GoTo 2 No gt GoTo 6 Turn the ignition off Disconnect the ECT Sensor harness connector Disconnect the PCM harness connectors Using an Ohmmeter measure the resistance between the ECT Sensor Signal Circuit and ground B Is the resistance below 5 0 ohms Yes Repair the short to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 3 Turn Ignition With the DRB in sensors read the Eng Coolant Tmp VIt value Disconnect the ECT Sensor harness connector Did the Coolant Tmp VIt value change from below 1 0 volt to above 4 5 volts Yes Replace the ECT Sensor Perform the Powertrain Verification Test Ver 5 No gt GoTo 4 73 DRIVEABILITY 0117 SENSOR VOL
194. RIVER NO 1 COIL ON PLUG NO 2 BLACK 2 WAY CAV CIRCUIT FUNCTION F42 16DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 92 16TN PK COIL DRIVER NO 2 346 COIL ON PLUG 3 COIL ON PLUG NO 4 COIL ON PLUG NO 5 COIL ON PLUG NO 6 CONNECTOR PINOUTS COIL ON PLUG NO 3 BLACK 2 WAY CAV CIRCUIT FUNCTION 1 F42 16DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 2 93 16TN OR COIL DRIVER NO 3 COIL ON PLUG NO 4 BLACK 2 WAY CAV CIRCUIT FUNCTION F42 16DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 94 16TN LG COIL DRIVER NO 4 COIL ON PLUG NO 5 BLACK 2 WAY CAV CIRCUIT FUNCTION F42 16DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 95 16TN DG COIL DRIVER NO 5 COIL ON PLUG NO 6 BLACK 2 WAY CAV CIRCUIT FUNCTION F42 16DG LG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT 96 16TN LB COIL DRIVER NO 6 347 R 4 2 R 4 2 CRANKSHAFT POSITION SENSOR 2 7L CRANKSHAFT POSITION SENSOR 3 23 50 DATA LINK CONNECTOR CONNECTOR PINOUTS CRANKSHAFT POSITION SENSOR 2 7L BLACK 3 WAY
195. RUN POSITION FOR ONE HOUR THEN ENTER THE CORRECT PIN ENSURE ALL ACCESSORIES ARE TURNED OFF ALSO MONITOR THE BATTERY STATE AND CONNECT A BATTERY CHARGER IF NECESSARY 5 Press ENTER to transfer the secret key the SKIM will send the secret key to the PCM 3 2 10 PROGRAMMING THE SENTRY KEY IMMOBILIZER MODULE NOTE IF THE PCM AND THE SKIM ARE REPLACED AT THE SAME TIME PROGRAM THE VIN INTO THE PCM FIRST ALL VEHICLE KEYS WILL THEN NEED TO BE REPLACED AND PROGRAMMMED TO THE NEW SKIM Turn the ignition on transmission park neutral 2 Use the DRB and select THEFT ALARM SKIM then MISCELLLANEOUS 3 Select SKIM MOSULE REPLACEMENT GAS OLINE 4 Program the vehicle four digit PIN into the SKIM 5 Select COUNTRY CODE and enter the correct country NOTE BE SURE TO ENTER THE CORRECT COUNTRY CODE IF THE INCORRECT COUNTRY CODE IS PROGRAMMED INTO SKIM THE SKIM MUST BE REPLACED 6 Select UPDATE VIN the SKIM will learn the VIN from the PCM 7 Press ENTER to transfer the VIN the PCM will send the VIN to the SKIM 8 The DRB will ask if you want to transfer the secret key Select ENTER to transfer secret key from the PCM This will ensure the current vehicle ignition keys will still operate the SKIS system 3 2 11 PROGRAMMING THE IGNITION KEYS TO THE SENTRY KEY IMMOBILIZER MODULE Turn the ignition on transmission park neutral GENERAL INF
196. Repair as necessary Perform the 42LE Transmission Verification Test Ver 1 NO TEST COMPLETE Test Complete 317 TRANSMISSION Symptom CHECKING PARK NETURAL SWITCH OPERATION POSSIBLE CAUSES TRANSMISSION RANGE SENSOR DEFECTIVE P N SWITCH SENSE CIRCUIT OPEN P N SWITCH SENSE CIRCUIT SHORTED TO GROUND POWERTRAIN CONTROL MODULE P N SWITCH INPUT ERROR ACTION APPLICABILITY Turn ignition on Engine Not Running With the read the Park Neutral Switch input state While moving gear selector through all gear positions Park to 1 and back to Park watch DRBIII display Did the DRB III display show P N D R in the correct gear positions Yes Test Complete No GoTo 2 Turn ignition off Disconnect the PCM harness connector Disconnect the Transmission Range Sensor harness connector Note Check connectors Clean repair as necessary Measure the resistance of the P N Switch Sense Circuit from the PCM Connector to the Transmission Range Sensor 15 the resistance below 5 0 ohms Yes gt GoTo 3 open P N Switch Sense Circuit Perform the 42LE Transmission Verification Test Ver 1 Note Check connectors Clean repair as necessary Measure the resistance of the P N Switch Sense circuit between the Transmission Range Sensor and ground 15 the resistance below 5 0 ohms Yes Repair the P N Switch Sense Circuit for a short to ground Perform the 42LE Transmission Verific
197. Return Ground circuit Perform the Powertrain Verification Test Ver 2 Turn the ignition off Disconnect the Knock Sensor harness connector Disconnect the PCM harness connector Measure the resistance of the Knock Sensor Signal circuit between the Knock Sensor connector and the PCM connector 15 the resistance below 5 0 ohms Yes gt GoTo 7 No Repair the Knock Sensor Signal circuit for an open Perform the Powertrain Verification Test Ver 2 Turn the ignition off Replace the Knock Sensor Turn the ignition on With the DRBIII erase Test drive the vehicle Did the Knock Sensor Circuit trouble code return Yes Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 2 Turn the ignition off All Disconnect the Knock Sensor harness connector Turn the ignition on Measure the voltage between Knock Sensor Signal circuit and ground Is the voltage above 2 0 volts Yes Repair the Knock Sensor Signal circuit for a short to voltage Perform the Powertrain Verification Test Ver 2 No GoTo 6 No Test Complete 142 DRIVEABILITY P0325 KNOCK SENSOR 1 CIRCUIT Continued APPLICABILITY Turn the ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded termin
198. SITION SENSOR VOLTAGE HIGH Continued ACTION APPLICABILITY Turn the igntion off Disconnect the Throttle Position Sensor harness connector Note Check connectors Clean repair as necessary Turn the ignition on With a Voltmeter measure the Throttle Position Sensor Signal Circuit Is the voltage above 5 5 volts Yes Repair the TP Sensor Signal Circuit shorted to voltage Perform Powertrain Verification Test VER 5 No gt GoTo 4 Ignition Off Disconnect the Throttle Position Sensor harness connector Disconnect the PCM harness connector Using an ohmmeter measure the resistance between the TP Sensor Signal Circuit and the 5 Volt Supply Circuit at the TPS Is the resistance below 5 0 ohms Yes gt Repair the TP Sensor Signal Circuit shorted to the 5 Volt Supply Circuit Perform Powertrain Verification Test VER 5 GoTo 5 Turn the ignition off Disconnect the Trans Control Module harness connector Turn the ignition on Using a DRB monitor the TP sensor voltage 15 the voltage above 4 9 volts Yes gt GoTo 7 No Replace the Transmission Control Module Perform Powertrain Verification Test VER 5 Ignition Off Disconnect the Throttle Position Sensor Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary Using Ohmmeter measure resistance of TP Sensor Signal circuit from toTP Sensor Connector 15 the resistance below 5 0 ohms Yes gt GoT
199. SPONSE P0134 1 1 02 SENSOR STAYS AT CENTER 0139 1 2 O2 SENSOR SLOW RESPONSE 0140 1 2 O2 SENSOR STAYS AT CENTER 0153 2 1 02 SENSOR SLOW RESPONSE 0154 2 1 02 SENSOR STAYS AT CENTER 160 2 2 O2 SENSOR STAYS AT CENTER Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be 133 1 1 O2 SENSOR SLOW RESPONSE B When Monitored and Set Condition P0133 1 1 O2 SENSOR SLOW RESPONSE When Monitored With ECT greater than 147 F after reaching a vehicle speed of 10 mph and the throttle remaining open off idle for 2 minutes bring the vehicle to a stop and allow the engine to idle with the transmission in DRIVE Set Condition The oxygen sensor signal voltage is switching from below 0 27 volts to above 0 62 volts and back fewer times than required P0139 1 2 O2 SENSOR SLOW RESPONSE When Monitored Engine temp greater than 147 F vehicle speed greater than 10 mph throttle off idle for 2 minutes Bring vehicle to a stop and allow toidletransmission in drive auto or in neutral manual Set Condition The oxygen sensor signal voltage is switching from below 0 27 volts to above 62 volts and back fewer times than required P0153 2 1 O2 SENSOR SLOW RESPONSE When Monitored With ECT greater than 147 F after reaching a vehicle speed of 10 mph and the throttle remaining open off idle for 2 minutes bring the vehicle to a stop and allow the engine to idle with the transmission in
200. T CIRCUIT FUEL INJ ECTOR WIRING HARNESS INTERMITTENT FUEL INJ ECTOR NO 6 DRIVER CIRCUIT OPEN FUEL INJ ECTOR NO 6 DRIVER CIRCUIT SHORTED TO GROUND POWERTRAIN CONTROL MODULE INJ ECTOR DRIVER APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for 0206 Yes gt GoTo 2 gt GoTo 8 Turn ignition off Disconnect the fuel injector no 6 electrical connector Turn ignition on With the DRB actuate fuel injector no 6 Using 12 volt test light connected to ground check the ASD relay output circuit at the injector connector Does the test light illuminate brightly Yes gt GoTo 3 the open high resistance the ASD relay output circuit Note Check fuse in the PDC Perform the Powertrain Verification Test Ver 5 Stop All Actuations 127 DRIVEABILITY 0206 1 6 CONTROL CIRCUIT Continued ACTION APPLICABILITY Turn ignition off All Disconnect the fuel injector no 6 electrical connector Note The next test step requires the use of an analog voltmeter Note Pay careful attention to the voltmeter needle in order to have valid test results Connect the positive lead of the voltmeter to a known good 12 volt source B Connect the negative lead of the voltmeter to the fuel injector 6 driver circuit at the fuel injector no 6 electrical connector Turn ignition on
201. T Signal wire voltage at the ECT connector Is the voltage above 5 5 volts Yes Repair the short to voltage Perform the Powertrain Verification Test Ver 5 No gt GoTo 5 Turn the ignition off Disconnect the ECT Sensor harness connector Turn the ignition on With the DRB in sensors read the Coolant Tmp VIt value Connect jumper wire between the ECT Sensor Signal Circuit and the Sensor Ground Circuit at the ECT Sensor connector Voltage should change from greater than 4 5 volts to less than 1 0 volt Did Coolant Tmp value change from greater than 4 5 volts to less than 1 0 volt Yes Replace the ECT Sensor Perform the Powertrain Verification Test Ver 5 No gt GoTo 6 If there are no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertr
202. TAGE TOO LOW Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the ECT Sensor harness connector Disconnect the PCM harness connectors Using an Ohmmeter measure the resistance between the ECT Sensor Signal circuit the Sensor Ground circuit at the ECT Sensor connector Is the resistance below 5 0 ohms Yes Repair the shorted circuit Perform the Powertrain Verification Test Ver 5 No gt GoTo 5 If there are no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Complete 74 DRIVEABILITY Symptom 0118 SENSOR VOLTAGE TOO HIGH When Monitored and Set Condition 0118 SENSOR VOLTAGE TOO HIGH When Monitored With the ignition on and battery voltage greater than 10 4 volts S
203. TARTING Symptom NO RESPONSE FROM PCM WITH ANO START CONDITION POSSIBLE CAUSES EGR SOLENOID DEFECTIVE SHORT RUNNER VALVE DEFECTIVE FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN PCM GROUND CIRCUIT S OPEN NO RESPONSE DISPLAYED FROM DRB ASD RELAY OUTPUT CIRCUIT SHORTED TO GROUND FUEL INJ ECTOR S GENERATOR SHORTED TO GROUND IGNITION COIL DEFECTIVE 02 SENSOR S CAPACITOR DEFECTIVE FUSED B CIRCUIT OPEN BETWEEN FUSE BATTERY FUSED B CIRCUIT OPEN BETWEEN FUSE PCM FUSED B CIRCUIT SHORTED TO GROUND APPLICABILITY With the DRB attempt to read trouble codes All Was the ignition on when the RESPONSE message was displayed Yes gt GoTo 2 Turn ignition on to get a response Perform Powertrain Verification Test VER 1A Turn ignition off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Turn the ignition key on Usea 12 volt test light in the following step With the 12V test light connected to ground probe the Fused Ignition in the PCM Connector Is the test light illuminated and bright Yes gt GoTo 3 No Repair the open or high resistance used Ignition Switch Output Circuit between PCM amp Ignition Switch Perform the Powertrain Verification Test Ver 1 307 STARTING NO RESPONSE FROM PCM WITH ANO START CONDITION Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Powertrain Control M
204. TERMITTENT PROBLEM POWER STEERING PRESSURE SWITCH GROUND CIRCUIT OPEN POWER STEERING PRESSURE SWITCH POWER STEERING PRESSURE SWITCH SENSE CIRCUIT SHORTED TO GROUND POWER STEERING SWITCH SENSE CIRCUIT OPEN PCM ACTION APPLICABILITY Turn Ignition On All With the DRB read the 5 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 gt GoTo 7 Turn Ignition Off Disconnect the Power Steering Pressure Switch connector Using an Ohmmeter measure the resistance of the Ground Circuit at the Power Steering Pressure Switch connector to a good Ground Is the resistance below 5 0 ohms Yes gt GoTo 3 No the open Power Steering Pressure Switch Ground Circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Power Steering Pressure Switch Connector Turn ignition on Connect a J umper Wire to the Power Steering Pressure Switch Sense Circuit Using the DRB while monitoring the Power Steering Pressure Switch touch the J umper Wire to the Ground Circuit at the Power Steering Pressure Switch harness connector several times Did the Power Steering Pressure Switch status change from Hi to Low Yes Replace the Power Steering Pressure Switch Perform the Powertrain Verification Test Ver 5 gt GoTo 4 203 DRIVEABILITY 0551 STEERING SWITCH FAILURE Continued APPLICABILITY Turn Ignition Off All Disco
205. TION APPLICABILITY Turn the ignition off All Disconnect the MAP Sensor harness connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary Measure the resistance of the MAP Sensor 5 Volt Supply Circuit from the MAP Sensor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 9 No Repair the open 5 Volt Supply Circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the MAP Sensor Electrical Connector Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary With an Ohmmeter measure the MAP Sensor 5 Volt Supply Circuit for resistance to ground 15 the resistance below 5 0 ohms Yes Repair the 5 Volt Supply Circuit for a short to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 10 If there are no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform Powertrain Test Verification VER 5A Turn ignition off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes gt Repair as necessary Perform Powertrain Test Verification VER 5A gt GoTo 12 Warning KEEP CLEAR OF THE ENGINE S MOVING PARTS Start engine With the DRB read the MAP Sensor voltage Wiggle MAP Sensor Connector amp Harness Monitor the DRB d
206. TRAL SWITCH SENSE CIRCUIT TRANSMISSION RANGE SENSOR DEFECTIVE P N SWITCH SENSE CIRCUIT OPEN P N SWITCH SENSE CIRCUIT SHORTED TO GROUND POWERTRAIN CONTROL MODULE P N SWITCH INPUT ERROR ACTION APPLICABILITY With the DRBIII read All Is the Good Trip Counter for P 1899 displayed and Equal to 0 Yes gt GoTo 2 No gt GoTo 7 Turn ignition on Engine Not Running With the DRBIII read the Park Neutral Switch input state While moving gear selector through all gear positions Park to 1 and back to Park watch display Did the DRB 111 display show P N and D R the correct gear positions Yes Test Complete gt GoTo 3 Turn ignition off Disconnect the PCM harness connector Disconnect the Transmission Range Sensor harness connector Note Check connectors Clean repair as necessary Measure the resistance of the P N Switch Sense Circuit from the PCM Connector to the Transmission Range Sensor 15 the resistance below 5 0 ohms Yes gt GoTo 4 No Repair open P N Switch Sense Circuit Perform the 42LE Transmission Verification Test Ver 1 316 TRANSMISSION P1899 P N SWITCH STUCK IN PARK OR IN GEAR Continued ACTION APPLICABILITY Turn ignition off All Disconnect the PCM harness connector Disconnect the Transmission Range Sensor harness connector Note Check connectors Clean repair as necessary Measure the resistance of the P N Switch Sense circuit between the Tr
207. Test Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the SKIS Verification Test Test Complete Replace the ignition key with a new key All Using the DRB program the new ignition key to the SKIM Using the DRB erase the codes Turn ignition off Wait 10 seconds Turn ignition on Using the DRB read the codes Does the code appear Yes gt GoTo 4 Test Complete 324 VEHICLE THEFT SECURITY Symptom VIN MISMATCH When Monitored and Set Condition VIN MISMATCH When Monitored Monitored continuously during the engine RUN cycle Set Condition This condition exists when the VIN received fromthe PCM does not match the VIN stored in the SKIM s EEPROM Note Failure maturity time may take up to 3 minutes POSSIBLE CAUSES PCM DEFECTIVE INTERMITTENT WIRING HARNESS PROBLEM SKIM DEFECTIVE APPLICABILITY Using the DRB erase the codes All Turn ignition off Wait 10 seconds Turn ignition on Using the DRB read the codes Does the DRB display the code that was previously erased Yes gt GoTo 2 gt GoTo 3 No
208. Test Ver 5 No gt GoTo 5 Turn ignition off Disconnect the Camshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between the 8 volt supply circuit and the sensor ground circuit at the CMP Sensor connector Is the resistance below 5 0 ohms Yes Repair the 8 volt supply circuit shorted to the sensor ground circuit Perform the Powertrain Verification Test Ver 5 GoTo 6 145 DRIVEABILITY 40 CAM SIGNAL AT PCM Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Camshaft Position Sensor connector Turn ignition on Using a voltmeter measure the Camshaft Position Sensor Signal circuit at the Camshaft Position Sensor connector Select a conclusion that best matches your voltage measurement Less than 4 5 volts GoTo 11 Between 4 5 and 5 5 volts GoTo 7 Between 7 5 and 8 5 volts Repair the CMP signal circuit for a short to the 8 volt supply circuit Perform the Powertrain Verification Test Ver 5 Greater than 8 5 volts Repair the CMP signal circuit shorted to voltage Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Camshaft Position Sensor connector Using an ohmmeter measure the resistance between the Sensor Ground circuit in the Camshaft Position Sensor connector and ground Is the resistance below 5 0
209. To 3 Measure the resistance of the SRV solenoid control circuit from the SRV solenoid harness connector and the PCM harness connector 15 the resistance below 5 0 ohms Yes gt GoTo 4 No Repair the open the SRV solenoid control circuit Turn the ignition off Disconnect the PCM harness connector Disconnect the SRV solenoid harness connector Measure the SRV solenoid circuit to ground 15 the resistance below 5 0 ohms Yes Repair the short to ground in the SRV solenoid circuit No gt GoTo 5 Turn the ignition off All Disconnect the PCM harness connector Disconnect the SRV solenoid harness connector 212 P1288 SHORT RUNNER SOLENOID CIRCUIT Continued APPLICABILITY Disconnect the SRV solenoid harness connector All Turn the ignition on With the DRB actuate the Short Runner Valve solenoid Measure the voltage between ASD relay output circuit and ground 15 the voltage above the 10 0 volts Yes GoTo 6 No Repair theASD relay output circuit If there are no possible causes remaining replace the Powertrain Control Module View repair options No Replace the Powertrain Control Module Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Ref
210. To 3 No Replace the coil on plug no 4 Perform the Powertrain Verification Test Ver 5 159 DRIVEABILITY P0354 IGNITION COIL 4 PRIMARY CIRCUIT Continued APPLICABILITY Turn ignition off Disconnect the coil on plug 4 connector Turn ignition on With the DRB actuate the generator field Usinga 12 volt test light connected to ground B check theASD relay output circuit at the coil on plug electrical connector Does the test light illuminate brightly Yes gt GoTo 4 No Repair the open high resistance the ASD relay output circuit Perform the Powertrain Verification Test Ver 5 Stop All Actuations Turn ignition off Note The following test is done at the coil on plug no 2 connector with the coil on plug connected Back probe the coil driver 4 circuit with Miller tool 6801 and a test light connected to Warning Keep clear of the engine s moving parts Start the engine and observe the test light Does the test light blink flicker Yes gt Test Complete gt GoTo 5 Caution Turn the Engine Off Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the coil driver no 4 circuit from the coil on plug no 4 connector to the PCM connector 15 the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open coil driver no 4 circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off
211. To 4 Turn the ignition on With the DRB actuate the Radiator Fan relay Wiggle the Wiring Harness from the Relay s to the Powertrain Control M odule Did the wiggling interrupt the Radiator Fan Motor cycling Yes Repair as necessary where wiggling caused the cycling to be interrupted Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Turn the ignition off Using the Schematic as a guide inspect the Wiring and Connectors Were any problems found Yes gt Repair as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 239 DRIVEABILITY 1489 SPEED FAN CONTROL RELAY CIRCUIT Continued ACTION APPLICABILITY Turn the ignition off Remove the Radiator Fan Relay Measure the voltage of the Fused Ignition Switch Output circuit at the relay connector Is the voltage above 10 0 volts Yes gt GoTo 5 Repair the open Fused Ignition Switch Output circuit Turn the ignition off Disconnect the PCM harness connector Remove the Radiator Fan Relay Measure the resistance of the Radiator Fan Relay Control Circuit from the Relay to the PCM Is the resistance below 5 0 ohms Yes gt GoTo 6 gt Repair the open Radiator Fan Relay Control Circuit Perform the Powertrain Verification Test Ver 2 Turn the ignition off Disconnect the PCM harness connector Turn the ignition on Connect a jumper wire to the Radiator Fan Relay Control Circu
212. UNLOCK RELAY CONNECTOR PINOUTS CAV CIRCUIT FUNCTION 86 P55 1608 DRIVER DOOR UNLOCK RELAY OUTPUT 87 INTERNAL FUSED B 88 INTERNAL FUSED B 89 INTERNAL GROUND 90 INTERNAL DRIVER DOOR UNLOCK RELAY CONTROL FOG LAMP RELAY CAV CIRCUIT FUNCTION 64 INTERNAL FOG LAMP RELAY CONTROL 65 INTERNAL FUSED B 66 INTERNAL FUSED B 67 INTERNAL FOG LAMP RELAY OUTPUT HIGH BEAM HEADLAMP RELAY CAV CIRCUIT FUNCTION 56 INTERNAL GROUND 57 INTERNAL HIGH BEAM RELAY CONTROL 58 INTERNAL FUSED B 59 INTERNAL HIGH BEAM HEADLAMP RELAY OUTPUT HORN RELAY CAV CIRCUIT FUNCTION 72 INTERNAL HORN RELAY CONTROL 73 INTERNAL FUSED B 74 INTERNAL FUSED B 75 18DG RD HORN RELAY OUTPUT LOW BEAM HEADLAMP RELAY CAV CIRCUIT FUNCTION 60 _ INTERNAL LOW BEAM HEADLAMP RELAY CONTROL 61 INTERNAL FUSED B 62 INTERNAL FUSED B 63 INTERNAL LOW BEAM HEADLAMP RELAY OUTPUT PARK LAMP RELAY CAV CIRCUIT FUNCTION 52 INTERNAL PARK LAMP RELAY CONTROL 53 INTERNAL FUSED B 54 INTERNAL FUSED B 55 INTERNAL PARK LAMP RELAY OUTPUT SPARE RELAY CAV CIRCUIT FUNCTION 68 69 7 16WT DB FUSED B 70 A37 16WT DB FUSED B 71 355 R ie 2 CO
213. US CIRCUIT OPEN TCM PCI BUS CIRCUIT ACTION APPLICABILITY With the DRBIII attempt to read Transmission 5 All Does the DRB show RESPONSE to Yes gt GoTo 2 Test Complete With the DRBIII check all of the other modules on the vehicle for evidence of a vehicle bus problem Bus related in other modules point to an vehicle bus problem Other symptoms such as a customer complaint of intermittent operation of bus controlled features also indicate a bus problem Does the PRNDL display indicate No Bus or is there any evidence of an overall vehicle bus problem Yes Diagnose and repair other bus problems as necessary Perform the 42LE Transmission Verification Test Ver 1 No gt GoTo 3 Turn ignition off to the lock position Disconnect the Transmission Control Module TCM Note Check connectors Clean repair as necessary Connect the ground lead of a test light to a Known good ground Turn the ignition on Using a 12 volt Test Light connected to ground check the Fused Ignition Switch Output Run St circuit in the TCM connector Note The light must illuminate brightly if it does not light or lights dimly the circuit must be repaired If there is any doubt compare the brightness when testing the circuit to the brightness when connected directly to the battery positive post Does the test light illuminate brightly Yes gt GoTo 4 No Repair cause of n
214. Verification Test VER 6 No Test Complete Note Perform a thorough visual inspection of the EVAP system hoses tudes and connections Look for any physical damage or signs of wetness at connections The strong smell of fuel vapors may aid diagnosis also 189 DRIVEABILITY P0442 EVAP LEAK MONITOR MEDIUM 040 LEAK DETECTED Continued ACTION APPLICABILITY At this time the conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note A thorough visual inspection of the Evap system hoses tubes and connections may save time in your diagnosis Look for any physical damage or signs of wetness at connections The strong smell of fuel vapors may aid diagnosis also Note Refer to any Technical Service Bulletins TSB s that may apply With the DRB in System Tests perform the LDP Monitor Test This will force the PCM to run the LDP Monitor If the monitor fails further diagnosis is required to find faulty component If the monitor passes the condition is not present at this time Were any problems found Yes Repair as necessary Perform Powertrain Verification Test VER 6 Test Complete 190 DRIVEABILITY Symptom P0443 EVAP PURGE SOLENOID CIRCUIT When Monitored and Set Condition P0443 EVAP PURGE SOLENOID CIRCUIT When
215. Y lt 22cceue 51 NO RESPONSE FROM TOM 53 PGI BUS COMMUNICATION FAILURE scan oe be 56 DRIVEABILITY P0106 BAROMETRIC PRESSURE OUT OF RANGE 59 P0107 MAP SENSOR VOLTAGE TOO DOW 2200950 63 108 SENSOR VOLTAGE TOO HIGH Seesaw ches 66 P0112 INTAKE AIR TEMP SENSOR VOLTAGE LOW 69 0113 AIR TEMP SENSOR VOLTAGE 71 P0117 ECT SENSOR VOLTAGE LOW es 73 P0118 ECT SENSOR VOLTAGE TOO HIGH 75 0121 5 VOLTAGE DOES NOT AGREE WITH 77 0122 POSITION SENSOR VOLTAGE 81 0123 POSITION SENSOR VOLTAGE HIGH 84 P0125 CLOSED LOOP TEMP NOT 87 P1281 ENGINE IS COLD TOO LONG Bee es 87 0131 1 1 O2 SENSOR SHORTED GROUND a 89 P0137 1 2 O2 SENSOR SHORTED GROUND 2522 2 65 89 20151 21 O2 SENSOR SHORTED 89 157 2 2 O2 SENSOR SHORTED 89 0132 1 1 O2 SENSOR SHORTED VOLTAGE
216. Yes Repair vacuum leak as necessary Perform the Powertrain Verification Test Ver 5 No GoTo 2 Turn ignition off a vacuum gauge to a manifold vacuum source Start the engine and allow to idle Note If the engine will not idle maintain a constant RPM above idle With the DRB in Sensors read the MAP Sensor Vacuum value 15 the DRB reading within 1 of the teed in vacuum gauge Yes gt GoTo 4 No Replace the MAP Sensor Perform the Powertrain Verification Test Ver 5 Note Throttle must be fully closed and against throttle stop All Turn ignition on With the DRB in Sensors read the Throttle Position Sensor voltage Is the voltage 1 5 volts or less with the throttle closed Yes GoTo 3 No Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 223 DRIVEABILITY P1299 VACUUM LEAK FOUND IAC FULLY SEATED Continued APPLICABILITY Turn ignition on All With the DRB in Sensors monitor the Throttle Position Sensor voltage while slowly opening the throttle to wide open Is the maximum voltage at least 3 4 volts at wide open throttle Yes Test Complete No Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 224 DRIVEABILITY Symptom P1388 AUTO SHUTDOWN RELAY CONTROL CIRCUIT When Monitored and Set Condition P1388 AUTO SHUTDOWN RELAY CONTROL CIRCUIT When Monitored With ignitio
217. ain Verification Test Ver 5 No Test Complete 76 DRIVEABILITY Symptom 0121 5 VOLTAGE DOES NOT AGREE WITH MAP When Monitored and Set Condition 0121 5 VOLTAGE DOES NOT AGREE WITH When Monitored With the engine running no MAP Sensor TP Sensor 5 set Engine speed must be greater than 1600 RPM Set Condition When the manifold vacuum is low the TP sensor signal should be high Conversely when manifold vacuum is high the TP sensor signal should be low If the MAP Sensor and TP Sensor do not respond within 4 seconds as stated above a DTC will be set POSSIBLE CAUSES MAP SENSOR VACUUM PORT THROTTLE POSITION SENSOR VOLTAGE gt 1 0 VOLT TPS VOLTAGE CHANGE NOT SMOOTH TPS HARNESS CONNECTORS OBSERVABLE E MAP SENSOR WIRING HARNESS INTERMITTENT MAP SENSOR WIRING HARNESS OBSERVABLE PROBLEM THROTTLE BODY INSPECTION TPS 5 VOLT SUPPLY CIRCUIT OPEN TPS 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND THROTTLE POSITION SENSOR THROTTLE POSITION SENSOR VOLTAGE gt 1 0 VOLT POWERTRAIN CONTROL MODULE MAP SENSOR ACTION APPLICABILITY Note Diagnose any MAP sensor TPS or Vehicle Speed sensor trouble codes All before continuing Turn ignition on With the DRB read the 5 Is the Global Good Trip Counter displayed and equal to zero for P0121 Yes gt GoTo 2 No GoTo 16 Ignition Off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Ye
218. aks Yes gt Repair or replace leaking exhaust parts as necessary Perform the Powertrain Verification Test Ver 2 gt GoTo 7 NOTE A new Downstream O2 Sensor along with an aging Upstream O2 Sensor may cause this trouble code to set Review vehicle repair history Has the Downstream O2 Sensor been replaced without replacing the Upstream 02 Sensor Yes Replace the appropriate Upstream Oxygen Sensor Perform Powertrain Verification Test VER 5A No gt GoTo 8 If there no possible causes remaining replace the Catalytic Converter View repair options Repair Replace the Catalytic Converter 185 DRIVEABILITY Symptom P0441 EVAP PURGE FLOW MONITOR E When Monitored and Set Condition P0441 E VAP PURGE FLOW MONITOR When Monitored With engine temperature greater than 76 C 170 F fuel control closed loop engine idling for 2 minutes no low fuel MAP less than 15 7 inches mercury and barometric altitude less than 8 000 feet Set Condition After having passed the Leak Detection Pump LDP test no air flow through the evaporative system is detected by the evap monitor POSSIBLE CAUSES EVAP CANISTER VACUUM HARNESS INTERMITTENT EVAP PURGE HOSE CANISTER TO FUEL TANK EVAP PURGE HOSE SOLENOID TO CANISTER EVAP PURGE SOLENOID VACUUM SUPPLY PROPORTIONAL PURGE SOLENOID STUCK CLOSED PROPORTIONAL PURGE SOLENOID DEFECTIVE ACTION APPLICABILITY Turn ignition on All With the
219. als Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 143 DRIVEABILITY Symptom 40 CAM SIGNAL AT PCM E When Monitored and Set Condition P0340 NO CAM SIGNAL AT PCM When Monitored Engine cranking running Set Condition At least 5 seconds have elapsed with crankshaft position sensor signals present but no camshaft position sensor signal POSSIBLE CAUSES 8 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE CMP SIGNAL CIRCUIT SHORTED TO 8 VOLT SUPPLY CIRCUIT CMP SIGNAL CIRCUIT SHORTED TO VOLTAGE TONE WHEEL PULSE RING DAMAGED SENSOR GROUND CIRCUIT OPEN WIRING HARNESS INTERMITTENT STRAY SIGNAL FROM THE CRANKSHAFT POSITION SENSOR IRREGULAR LAB SCOPE PATTERN OF CMP SIGNAL CMP SIGNAL CIRCUIT OPEN CMP SIGNAL CIRCUIT SHORTED TO GROUND CMP SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT 8 VOLT SUPPLY CIRCUIT OPEN 8 VOLT SUPPLY CIRCUIT SHORTED TO GROUND 8 VOLT SUPPLY CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT CAMSHAFT POSITION SENSOR POWERTRAIN CONTROL MODULE 8 VOLT SUPPLY POWERTRAIN CONTROL MODULE CMP SIGNAL CIRCUIT POWERTRAIN CONTROL MODULE SENSOR GROUND CIRCUIT ACTION APPLICABILITY With the DRB in Inputs Outputs read the Current CMP State while cranking the All engine Does the DRB display Current CMP State while cranking the e
220. ance of S C Switch Signal Circuit to ground at the PCM Connector Is the resistance below 5 0 ohms Yes Repair S C Switch Signal Circuit for short to ground Perform the Powertrain Verification Test Ver 4 No gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module SPEED CONTROL View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Using the Schematics as a guide inspect the Wiring and Connectors Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 4 GoTo 9 286 SPEED CONTROL P1597 SPEED CONTROL SWITCH ALWAYS LOW Continued ACTION APPLICABILITY Disconnect the Speed Control On Off Switch SPEED CONTROL With the DRB read the Speed Control Switch Voltage Did the DRB show Speed Control Switch Voltage go from below 4 0 Volts to above 4 0 Volts Yes Replace the Left Speed Control Switch Perform the Powertrain Verification Test Ver 4 gt GoTo 10 Disconnect the Speed Control Resume Accel Switch SPEED CONTROL With the DRB read the Speed Control Switch Voltage Did the DRB show Speed Control Switch Voltage go from below 4 0 Volts to above 4 0 Volts Yes Replace the Right Speed Control Switch Perform the Powertrain Verification Test Ver 4 No Test Complete 287 SPEED CONTROL
221. and continue verification 6 If PCM has been changed and correct VIN and mileage have not been programmed DTC will be set in ABS and Air bag modules In addition if vehicle is equipped with a Sentry Key Immobilizer Module SKIM Secret Key data must be updated to enable start 7 For ABS and Air Bag systems Enter correct VIN and Mileage PCM Erase codes in ABS and Air Bag modules 8 For SKIM theft alarm Connect DRB to data link conn Goto Theft Alarm SKIM Misc and place 5 in secured access mode by using the appropriate PIN code for this vehicle Select Update the Secret Key data Data will be transferred from SKIM to PCM 9 If a Comprehensive Component DTC was repaired perform steps 10 13 If a Major OBDII Monitor DTC was repaired skip those steps and continue verification 10 After the ignition has been off for at least 10 seconds restart the vehicle and run 2 minutes 11 If the Good Trip counter changed to one more and there no new the repair was successful and is now complete Erase DTC s and disconnect the 12 If the repaired DTC has reset the repair is not complete Check for any related 5 5 or flash updates and return to the Symptom list 13 If another DTC has set return to the Symptom List and follow the path specified for that DTC 14 With the DRBII1 monitor the appropriate pre test enabling conditions until all conditions have been met Once the conditions have bee
222. ansmission Range Sensor and ground Is the resistance below 5 0 ohms Yes Repair the P N Switch Sense Circuit for a short to ground Perform the 42LE Transmission Verification Test Ver 1 No gt GoTo 5 Turn the ignition off Disconnect the PCM harness connector Move the Gear selector through all gear positions from Park to 1st and back While moving the gear selector through the gears measure the resistance of the P N Position Switch Sense circuit to ground B in the PCM connector Did the display switch from above 10 0 ohms to below 10 0 ohms Yes gt GoTo 6 No Replace the Transmission Range Sensor Perform the 42LE Transmission Verification Test Ver 1 If there are no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the 42LE Transmission Verification Test Ver 1 At this time the conditions required to set the DTC are not present Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Were any problems found Yes gt
223. at the injector connector Does the test light illuminate brightly Yes gt GoTo 3 the open high resistance the ASD relay output circuit Note Check fuse in the PDC Perform the Powertrain Verification Test Ver 5 Stop All Actuations 112 0201 1 ECTOR 1 CONTROL CIRCUIT Continued APPLICABILITY Turn ignition off Disconnect the fuel injector no 1 electrical connector Note The next test step requires the use of an analog voltmeter Note Pay careful attention to the voltmeter needle in order to have valid test results Connect the positive lead of the voltmeter to a known good 12 volt source Connect the negative lead of the voltmeter to the fuel injector no 1 driver circuit at the fuel injector no 1 electrical connector Turn ignition on With the DRB actuate fuel injector no 1 and observe the voltmeter needle Does the needle fluctuate Yes gt GoTo 4 No GoTo 5 Stop All Actuations Turn ignition off If there are no possible causes remaining replace the fuel injector View repair options Repair Replace the fuel injector Perform the Powertrain Verification Test Ver 5 Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 1 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the fuel injector no 1 d
224. ation Test Ver 1 gt GoTo 4 Turn the ignition off Disconnect the PCM harness connector Move the Gear selector through all gear positions from Park to 1st and back While moving the gear selector through the gears measure the resistance of the P N Position Switch Sense circuit to ground B in the PCM connector Did the display switch from above 10 0 ohms to below 10 0 ohms Yes gt GoTo 5 No Replace the Transmission Range Sensor Perform the 42LE Transmission Verification Test Ver 1 Turn ignition off All Disconnect the PCM harness connector Disconnect the Transmission Range Sensor harness connector 318 TRANSMISSION CHECKING PARK NETURAL SWITCH OPERATION Continued ACTION APPLICABILITY If there are no possible causes remaining replace the PCM All View repair options Repair Replace the Powertrain Control Module Perform the 42LE Transmission Verification Test Ver 1 319 VEHICLE THEFT SECURITY Symptom List ANTENNA FAILURE COP FAILURE EEPROM FAILURE INTERNAL FAULTS RAM FAILURE SERIAL LINK INTERNAL STACK OVERFLOW FAILURE Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be ANTENNA FAILURE When Monitored and Set Condition EEPROM FAILURE When Monitored At ignition ON and during the SKIM programming process which programs SKIM s PIN the VIN country code or additional keys Set Condition This condition is
225. ation Test Ver 4 No gt GoTo 7 Ignition on with engine running SPEED CONTROL With the DRB monitor the Speed Control Switch inputs While observing the display press the Set Switch several times Does the show the Set Switch status change appropriately from Pressed to Released Yes gt GoTo 8 No Replace the Left S C Switch Perform the Powertrain Verification Test Ver 4 289 SPEED CONTROL CHECKING SPEED CONTROL OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Ignition On Engine Running SPEED CONTROL With the DRB monitor the Speed Control Switch inputs While observing the display press the Resume Switch several times Does the show the Resume Switch status change appropriately from Pressed to Released Yes gt GoTo 9 gt GoTo 12 Ignition on with engine not running SPEED CONTROL With the DRB III read DTC s Are any Vehicle Speed Signal codes set Yes Refer to symptom P0500 NO VEHICLE SPEED SIGNAL in the DRIVEABILITY category GoTo 10 Ignition On Engine Running SPEED CONTROL With the DRB monitor the Speed Control Switch inputs While observing the display press the Cancel Switch several times Does the show the Cancel Switch status change appropriately from Pressed to Released Yes gt GoTo 11 No Replace the Right S C Switch Perform the Powertrain Verification Test Ver 4 Ignition On Engine Running SPEE
226. ay to the PCM Did the wiggling interrupt the cicking Yes Repair as necessary where wiggling caused the clicking to be interrupted Perform the Powertrain Verification Test Ver 2 Test Complete 270 amp P0645 A C CLUTCH RELAY Continued ACTION APPLICABILITY Turn Ignition Off All Disconnect the A C Clutch Relay Note Check connectors Clean repair as necessary Turn ignition on Using a Voltmeter measure the F used Ignition Switch Output Circuit voltage at A C clutch relay Is the voltage above 10 0 volts Yes gt GoTo 5 No Repair the open Fused Ignition Switch Output Circuit Perform the Powertrain Verification Test Ver 2 Turn Ignition Off Disconnect the A C Clutch Relay Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance between Terminals 1 85 and 2 86 of the A C Clutch Is the resistance between 50 0 and 90 0 ohms Yes gt GoTo 6 No Replace the A C Clutch Relay Perform the Powertrain Verification Test Ver 2 Turn Ignition Off Disconnect the PCM Connector Disconnect the A C Clutch Relay Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the A C Clutch Relay Control Circuit from the Relay connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 7 No Repair open A C Clutch Relay Control Circuit Perform the Po
227. be the O2S Ground ckt using one of the meter leads using the other meter lead backprobe the 025 Ground circuit at the PCM connector Ensure the voltmeter leads are connected for positive polarity Start engine Allow the engine to reach normal operating temperature 15 the voltage below 0 10 volt Yes gt GoTo 5 No Repair high resistance on 025 Sensor Ground circuit Perform the Powertrain Verification Test Ver 5 Start engine Allow the engine to reach normal operating temperature 15 the voltage below 0 10 volt Yes gt GoTo 6 No Repair high resistance on O2S Signal circuit Perform Powertrain Verification Test VER 5A If there are no potential causes remaining replace the O2S View repair options Repair Replace the O2S Perform Powertrain Verification Test VER 5A Turn the ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 5A No Test Complete Turn ignition off All Using a Voltmeter ba
228. bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform wiggletest of the injector wiring whilethe engineis running Listen for the engine to miss or stall Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 114 Symptom P0202 I NJ ECTOR 2 CONTROL CIRCUIT When Monitored and Set Condition 0202 ECTOR 2 CONTROL CIRCUIT When Monitored With battery voltage greater than 10 4 volts the auto shutdown relay energized injector pulse width less than 10ms and engine speed less than 3000 rpm Set Condition This trouble code takes 64 to 10 0 seconds to set when no inductive kick is sensed 18ms after injector turn off and with no other injectors on POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT FUEL INJ ECTOR WIRING HARNESS INTERMITTENT FUEL INJ ECTOR NO 2 DRIVER CIRCUIT OPEN FUEL INJ ECTOR NO 2 DRIVER CIRCUIT SHORTED TO GROUND POWERTRAIN CONTROL MODULE INJ ECTOR DRIVER APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for P 0202 Yes gt GoTo 2 gt GoTo 8 Turn ignition off Disconnect the fuel injector no 2 electrical connector Turn ignition o
229. ble codes LOOK for P1698 15 the Starts since Set counter on the screen for DTC P1698 equal to Zero Yes gt GoTo 2 No gt GoTo 9 Note This DTC could have been set when the TCM is disconnected for transmission Diagnostics Turn ignition on Engine not running Connect the DRBIII and access Powertrain Control Module Note This test checks for other PCI BUS codes That indicates diferent circuits in the BUS With the DRB read PCM trouble codes Is a DTC also set for SKIM BUS MESSAGE and or No MIC BUS MESSAGE Yes gt GoTo 3 No Refer tosymptom NO RESPONSE FROM the COMMU NICATION category 44 COMMUNICATION P1698 NO BUS MESSAGE FROM TRANS CONTROL MODULE Continued ACTION APPLICABILITY Turn Ignition On Note As soon as one or more module communicates with the DRBIII answer the question With the DRBIII Select THEFT ALARM then select SKIM With the DRBIII Select THEFT ALARM Then select VTSS With the DRBIII Select ANTI LOCK BRAKES With the Select BODY Then Select ELECTRO MECHANICAL CLUSTER MIC With the DRBIII Select PASSIVE RESTRAINTS Then select AIRBAG Were you able to establish communication with any of the modules Yes gt GoTo 4 No Refer to symptom PCI BUS COMMUNICATION FAILURE in the COMMUNICATION category Turn ignition off All Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Turn the i
230. ce the coil on plug no 6 Perform the Powertrain Verification Test Ver 5 165 DRIVEABILITY P0356 IGNITION COIL 6 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Turn ignition off Disconnect the plug 6 connector Turn ignition on With the DRB actuate the generator field Using 12 test light connected to ground check the ASD relay output circuit at the coil on plug no 6 electrical connector Does the test light illuminate brightly Yes gt GoTo 4 No Repair the open high resistance in the ASD relay output circuit Perform the Powertrain Verification Test Ver 5 Stop All Actuations Turn ignition off Note The following test is done at the coil on plug no 2 connector with the coil on plug connected Back probe the coil driver no 6 circuit with Miller tool 6801 and a test light connected to Warning Keep clear of the engine s moving parts Start the engine and observe the test light Does the test light blink flicker Yes gt Test Complete gt GoTo 5 Caution Turn the Engine Off Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the coil driver no 6 circuit from the coil on plug no 6 connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open coil driver no 6 circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Dis
231. ckprobe the 025 Signal ckt using one of the meter leads using the other meter lead backprobe the 025 Signal circuit at the PCM connector Ensure the voltmeter leads are connected for positive polarity 209 Symptom P1282 F VEL PUMP RELAY CONTROL CIRCUIT ETE When Monitored and Set Condition P1282 FUEL PUMP RELAY CONTROL CIRCUIT When Monitored With the ignition and battery voltage above 10 4 volts Set Condition An open or shorted condition is detected in the fuel pump relay control circuit POSSIBLE CAUSES FUEL PUMP RELAY WIRING HARNESS OBSERVABLE FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN FUEL PUMP RELAY FUEL PUMP RELAY CONTROL CIRCUIT OPEN FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO GROUND FUEL PUMP RELAY WIRING HARNESS INTERMITTENT POWERTRAIN CONTROL MODULE APPLICABILITY Turn ignition on All With the DRB actuate the Fuel Pump Relay 15 the Fuel Pump Relay clicking Yes gt GoTo 2 No gt GoTo 4 Turn ignition off Using the wiring diagram as a guide inspect the fuel pump relay wiring and connectors Were any problems found Yes gt Repair as necessary Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Turn ignition on With the DRB actuate the Fuel Pump Relay Wiggle the wiring harness from the Fuel Pump Relay to the PCM while the relay is actuating Did the Relay clicking stop or become irregular when wiggling the wires Ye
232. connect the coil on plug no 6 connector Disconnect the Powertrain Control Module connectors Using ohmmeter measure the resistance between the coil driver no 6 circuit ground B Is the resistance below 5 0 ohms Yes Repair the coil driver no 6 circuit shorted to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the coil on plug no 6 connector 166 P0356 IGNITION COIL 6 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Note The conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform a wiggle test of the coil on plug wiring while the engine is running Listen for the engine to miss or stall Also watch for the Good Trip Counter to change to 0 We
233. correct injector Are there any engine mechanical problems Yes Repair as necessary Perform the FUEL MISFIRE VERIFICATION TEST No gt GoTo 11 Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer 15 the Fuel Inlet Strainer plugged Yes Replace the Fuel Pump Inlet Strainer No GoTo 12 If there are possible causes remaining replace the Fuel Pump Module View repair options Repair Replace the Fuel Pump Module Check for any of the following conditions mechanical problems All ENGINE VACUUM must be at least 13 inches in neutral ENGINE VALVE TIMING must be within specifications ENGINE COMPRESSION must be within specifications ENGINE EXHAUST SYSTEM must be free of any restrictions or leaks ENGINE PCV SYSTEM must flow freely TORQUE CONVERTER STALL SPEED must be within specifications POWER BRAKE BOOSTER no internal vacuum leaks FUEL must be free of contamination 103 DRIVEABILITY 0171 1 1 FUEL SYSTEM LEAN Continued ACTION APPLICABILITY Ignition On Engine Not Running With the DRBIII read the TPS voltage While monitoring the DRBIII slowly open and close the Throttle Is the voltage change smooth Yes gt GoTo 14 No Replace the Throttle Position Sensor Perf
234. creen Are there any signals missing Yes gt GoTo 7 GoTo 10 Turn ignition off Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Make sure the Camshaft Position Sensor and or the Crankshaft Position Sensor is tight Note Refer to any technical service bulletins that may apply Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 5 No GoTo 8 231 DRIVEABILITY P1391 INTERMITTENT LOSS OF CMP OR CKP Continued APPLICABILITY Turn ignition off Disconnect and remove the crankshaft position sensor Inspect the tone wheel flexplate slots for damage foreign material or excessive movement 15 the tone wheel flexplate free from defects Yes gt GoTo 9 No tone wheel flex plate as necessary If there no possible causes remaining replace the Crankshaft Position Sensor View repair options Repair Replace the Crankshaft Position Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off All Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires
235. ctor Using a 12 volt Test Light connect a end to theASD relay output ckt and the other end to the MTV solenoid control ckt at the MTV solenoid harness connector 214 DRIVEABILITY P1289 MANIFOLD TUNE VALVE CONTROL CIRCUIT Continued ACTION APPLICABILITY Turn the ignition off Disconnect the PCM harness connector Disconnect the MTV solenoid harness connector Measure the MTV solenoid circuit to ground Is the resistance below 5 0 ohms Yes Repair the short to ground in the MTV solenoid circuit GoTo 6 If there possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Turn the ignition off All Disconnect the MTV solenoid harness connector Remove the ASD relay Measure the resistance of theASD relay output ckt between theASD relay connector and the MTV solenoid harness connector 15 the resistance below 5 0 ohms Yes gt GoTo 8 No Repair the open the ASD relay output circuit Turn the ignition off Note Repeat the following test for both capacitors Note The Capacitors are attached to the side of each valve cover Disconnect the Capacitor harness connector Install a good INJ COIL fuse With the DRB actuate the ASD Relay Note If the above test result is an open COIL fuse the problem is short to ground in theASD Relay Output circuit Repair the short to ground in the ASD Relay Output ci
236. cuit for high resistance Perform the Powertrain Verification Test Ver 1 gt GoTo 4 304 STARTING NO CRANK CONDITION Continued APPLICABILITY Turn ignition off All Disconnect the Starter Relay Using a 12 volt test light check the Fused B Circuit at the Starter Relay Is the light illuminated and bright Yes gt GoTo 5 Repair the Fused B Circuit for an open or high resistance Perform the Powertrain Verification Test Ver 1 Turn the ignition off Disconnect the Starter Relay Turn ignition on Using a 12 volt test light check the Ignition Switch Output Circuit at the Starter Relay Connector While observing 12 volt test light hold ignition key in the start position Is the light illuminated and bright Yes gt GoTo 6 No Repair the Ignition Switch Output Circuit for an open or high resistance Perform the Powertrain Verification Test Ver 1 Turn ignition off Disconnect the Starter Relay Disconnect the PCM With an Ohmmeter measure the Starter Relay Control Circuit from the Relay tothe PCM Is the resistance below 5 0 ohms Yes gt GoTo 7 No Repair the open Starter Relay Control Circuit Perform the Powertrain Verification Test Ver 1 Turn ignition off Disconnect the Starter Relay Werning The Parking Brake must be on and the Transmission must be in park for a vehicle equipped with an automatic transmission or the clutch pedal dep
237. d above 0 MPH Yes Replace the Transmission Control Module Perform the Powertrain Verification Test Ver 5 gt GoTo 4 Turn ignition off Disconnect the Powertrain Control Module connectors Disconnect the Transmission Control Module harness connector Using an ohmmeter measure the resistance of the Vehicle Speed Signal circuit between the PCM harness connector and the TCM harness connector 15 the resistance above 5 0 ohms Yes the open in the vehicle speed sensor circuit Perform the Powertrain Verification Test Ver 5 No gt GoTo 5 If there are possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 At this time the conditions required to set the DTC are not present Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disc
238. d driver SPEED CONTROL SYSTEM The PCM controls vehicle speed by operation of the speed control servo vacuum and vent solenoids Energizing the vacuum solenoid applies vacuum to the servo to increase throttle position Operation of the vent solenoid slowly releases the vacuum allow ing throttle position to decrease A special dump solenoid allows immediate release of throttle posi tion caused by braking cruise control switch turned off shifting into neutral excessive RPM tires spin ning or ignition key off 3 2 4 PCM OPERATING MODES As input signals to the powertrain control module PCM change the PCM adjusts its response to output devices For example the PCM must calcu late a different injector pulse width and ignition timing for idle than it does for wide open throttle There are several different modes of operation that determine how the PCM responds to the various input signals There are two types of engine control operation open loop and closed loop In open loop operation the PCM receives input signals and responds according to preset program ming Inputs from the heated oxygen sensors are not monitored In closed loop operation the PCM monitors the inputs from the heated oxygen sensors This input indicates to the PCM whether or not the calculated injector pulse width results in the ideal air fuel ratio of 14 7 parts air to 1 part fuel By monitoring the exhaust oxygen content through the oxygen sensor the
239. displayed and equal to zero Yes gt GoTo 2 No gt GoTo 4 188 442 LEAK MONITOR MEDIUM 040 LEAK DETECTED Continued ACTION APPLICABILITY To continue testing you will need Miller Tools 6872 System Pressure Pump All and 8382 Gas Cap Tester Adapter Warning The test equipment is designed to be used to pressurize the vehicles Evaporative System only Using the equipment in a manner for which it was not designed could be harmful Warning Keep lighted cigarettes sparks flames and other ignition sources away from the test area to prevent the ignition of explosive gases Keep the test area well ventilated Note The fuel tank should have between 3 and 9 gallons of fuel to properly test the system Attach the power source clip red of Miller Tool 6872A to Battery and the ground clip black to Battery Perform the Evaporative System Pressure Pump self test that is specified on the tester cover Remove gas cap and install Miller Tool 8382 on vehicle Install gas cap to Miller Tool 8382 Attach the pressure supply hose from Miller Tool 6872A to the fitting on 8382 Disconnect the vacuum supply hose at the Leak Detection Pump Connect and apply a continuous vacuum supply i e 20 Hg to the Leak Detection Pump A vacuum pump such as A C recovery unit works well With the DRB in System Tests select Leak Detect Pump Test Read instructions and th
240. drive belt serpentine belt Check for any TSB s that may relate to a Misfire DTC Do any of the above causes exist Yes gt Repair as necessary Perform the FUEL MISFIRE VERIFICATION TEST No Test Complete 133 DRIVEABILITY Symptom 20 CRANK REFERENCE SIGNAL PCM ETE When Monitored and Set Condition 20 CRANK REFERENCE SIGNAL AT PCM When Monitored During engine cranking Set Condition No signal from the crankshaft position sensor is present during engine cranking and at least 3 camshaft position sensor signals have occurred POSSIBLE CAUSES 8 VOLT SUPPLY CIRCUIT OPEN 8 VOLT SUPPLY CIRCUIT SHORTED TO GROUND 8 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE 8 VOLT SUPPLY SHORTED TO SENSOR GROUND CIRCUIT CKP SIGNAL CIRCUIT SHORTED TO 8 VOLT SUPPLY CIRCUIT CKP SIGNAL CIRCUIT SHORTED TO VOLTAGE TONE WHEEL FLEX PLATE DAMAGED SENSOR GROUND CIRCUIT OPEN IRREGULAR LAB SCOPE PATTERN OF CKP SIGNAL STRAY SIGNAL FROM THE CAMSHAFT POSITION SENSOR WIRING HARNESS INTERMITTENT CKP SIGNAL CIRCUIT OPEN CKP SIGNAL CIRCUIT SHORTED TO GROUND CKP SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT CRANKSHAFT POSITION SENSOR POWERTRAIN CONTROL MODULE 8 VOLT SUPPLY POWERTRAIN CONTROL MODULE CKP SIGNAL CIRCUIT POWERTRAIN CONTROL MODULE SENSOR GROUND CIRCUIT ACTION APPLICABILITY With the DRB Inputs Outputs read the Current CKP State while cranking the All engine Does the DRB display C
241. dule Perform Powertrain Verification Test VER 2A Turn ignition off Remove the ASD relay from the PDC Disconnect the Powertrain Control Module Using an ohmmeter measure the resistance of the ASD relay output circuit from the ASD Relay connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 7 No Repair the open ASD Relay output circuit Perform the Powertrain Verification Test Ver 2 Turn ignition off Remove the ASD relay from the PDC Using a voltmeter measure both Fused B circuits at the ASD Relay connector 15 the voltage above 10 0 volts for both Circuits Yes gt GoTo 8 No Repair the open fused B circuit Note Check fuse the PDC Perform the Powertrain Verification Test Ver 2 Install a substitute relay for the Auto Shutdown Relay Attempt to start the vehicle Did the engine start Yes Replace the ASD Relay Perform the Powertrain Verification Test Ver 2 No gt GoTo 9 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform Powertrain Verification Test VER 2A 228 DRIVEABILITY P1389 NO ASD RELAY OUTPUT VOLTAGE AT PCM Continued APPLICABILITY At this time the conditions required to set the DTC are not present All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially b
242. during the following steps Key on Engine off Turn S C Switch on With the DRB actuate the S C Vacuum Solenoid Using a 12 Volt Test Light check the S C Brake Switch Output Circuit at the Servo connector Is the light illuminated and bright Yes gt GoTo 8 No GoTo 19 Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo Connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the Ground Circuit at the Servo Connector to ground 15 the resistance below 5 0 ohms Yes gt GoTo 9 No Repair open Ground Circuit at S C Servo Connector Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo Connector Disconnect Powertrain Control Module Connectors Note Check connectors Clean repair as necessary With an Ohmmeter measure the resistance of the S C Vacuum Solenoid Control Circuit from the PCM to the Servo Connector 15 the resistance below 5 0 ohms Yes gt GoTo 10 No Repair the open S C Vacuum Solenoid Control Circuit Perform the Powertrain Verification Test Ver 4 280 SPEED CONTROL P1595 SPEED CONTROL SOLENOID CIRCUITS Continued APPLICABILITY Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo Connector Disconnect Powertrain Control Module Connectors Note Check connectors Clean repair as necessary With an Ohmmeter measure the resistance of
243. e Note If engine coolant temperature is above 82 C 180 F allow the engine to cool until 65 C 150 is reached Start the Engine During engine warm up monitor the Eng Coolant Tmp Deg value The temp deg value change should be a smooth transition from start up to normal operating temp 82 180 F The value should reach at least 82 C 180 F Was the Eng Coolant Tmp Deg value increase a smooth transition and did it reach at least 180 Yes gt GoTo 16 No Replace the Engine Coolant Temperature Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off Connect a Vacuum Gauge to a Manifold Vacuum source Start the engine Allow the engine to idle Note If engine will not idle maintain a constant RPM above idle Using the DRB in Sensors read the MAP Sensor vacuum value 15 the DRB reading within 1 of the Vacuum Gauge reading Yes gt GoTo 17 Replace the MAP Sensor Perform Powertrain Verification Test VER 5A 110 DRIVEABILITY 0172 1 1 FUEL SYSTEM RICH Continued Check for of the following conditions mechanical problems ENGINE VACUUM must be at least 13 inches in neutral ENGINE VALVE TIMING must be within specifications ENGINE COMPRESSION must be within specifications ENGINE EXHAUST SYSTEM must be free of any restrictions or leaks ENGINE PCV SYSTEM must flow freely TORQUE CONVERTER STALL SPEED must be withi
244. e yes path to continue Turn the ignition on Turn all accessories off Start the engine Allow the engine to reach normal operating temperature With the DRB enter Engine System Test then EGR System Test Actuate the FLOW funcion in the EGR System Test Did the engine run rough or stall Yes gt GoTo 3 No gt GoTo 7 Turn the ignition off Disconnect the EGR Solenoid Assembly harness connector Start engine Attempt to allow the engine to idle Does the engine run rough or stall Yes Inspect the EGR tube assembly If OK replace the EGR valve Perform the Powertrain Verification Test Ver 2 gt GoTo 4 Turn the ignition off Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Measure the resistance of the EGR solenoid control circuit to sensor ground circuit at the EGR solenoid connector 15 the resistance below 5 0 ohms Yes Repair the EGR solenoid control circuit for a short to the sensor ground circuit Perform the Powertrain Verification Test Ver 2 GoTo 6 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 2 Turn the ignition off All Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Measure the resistance of the EGR solenoid control circuit to engine ground at the EGR solen
245. e J 1850 bus circuit Set Condition The PCM senses abnormally high low voltage on its input P1493 AMBIENT BATT TEMP SEN VOLTS TOO LOW When Monitored With the ignition key on the Body Control Module BCM transmits temperature data to the PCM the J 1850 bus circuit Set Condition The PCM senses abnormally high low voltage on its input POSSIBLE CAUSES WIRING HARNESS INTERMITTENT AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND AMBIENT TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT SENSOR GROUND CIRCUIT OPEN SENSOR GROUND CIRCUIT OPEN PARTIALLY SHORTED TO GROUND AMBIENT TEMPERATURE SENSOR DEFECTIVE BCM BCM ACTION APPLICABILITY Turn ignition on All With the DRBIII read 5 15 the DTC Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 No gt GoTo 11 CHARGING P1492 AMBIENT BATT TEMP SEN VOLTS TOO HIGH Continued ACTION APPLICABILITY Disconnect the Ambient Temperature Sensor Remove the Ambient Temperature Sensor Using an ohmmeter measure the resistance of the Ambient Temperature Sensor across the Sensor Compare the readings with the Ambient Temp Sensor Specifications on the chart Do the readings compare with the values listed Yes gt GoTo 3 Replace the Ambient Temperature Sensor Perform the Powertrain Verification Test Ver 5 Turn the ignition off Disc
246. e MAP Sensor Perform Powertrain Verification Test VER 5A No gt GoTo 3 66 DRIVEABILITY 0108 SENSOR VOLTAGE TOO HIGH Continued APPLICABILITY Ignition Off Disconnect the MAP Sensor harness connector Note Check connectors Clean repair as necessary Ignition on Engine not running Using a Voltmeter measure the voltage of the MAP Sensor Signal Circuit at the MAP Sensor Connector Is the voltage above 5 5 volts Yes Repair the MAP Sensor Signal shorted to battery voltage Perform Powertrain Test Verification VER 5A gt GoTo 4 Turn ignition off Disconnect the MAP Sensor harness connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the MAP Sensor Signal Circuit to 5 volt Supply Circuit Is the resistance below 5 0 ohms Yes Repair MAP Sensor Signal Circuit shorted to 5 volt Supply Circuit Perform Powertrain Test Verification VER 5A GoTo 5 Yes gt GoTo 6 No Repair the open MAP Sensor Ground Circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the PCM Disconnect the MAP Sensor Electrical Connector Note Check connectors Clean repair as necessary Using an Ohmmeter Measure the MAP Sensor Signal Circuit for resistance between the PCM Connector and the MAP Sensor Connector 15 the resistance below 5 0 ohms Yes gt GoTo 7 No Repair the open MAP Senso
247. e Sensor Signal Circuit and the Sensor Ground Circuit at the PCM connector 15 the resistance below 5 0 ohms Yes Repair the Sensor Signal Circuit shorted to Sensor Ground Circuit Perform the Powertrain Verification Test Ver 2 GoTo 6 If there are possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 2 The conditions necessary to set this DTC are not present at this timeUsing the schematics as a guide inspect the wiring and connectors specific to this circuit Wiggle the wires while checking for shorts and open circuits Were any problems found Yes Repair defective wiring and or connector as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 275 amp Symptom CHECKING A C SYSTEM OPERATION WITH NO DTC S POSSIBLE CAUSES A C PRESSURE SENSOR DTC PRESENT REFRIGERATION SYSTEM NOT PROPERLY CHARGED A C CLUTCH RELAY OUTPUT CIRCUIT OPEN A C COMPRESSOR CLUTCH GROUND CIRCUIT OPEN FUSED B CIRCUIT OPEN A C CLUTCH COIL A C CLUTCH RELAY ACTION APPLICABILITY Ignition On Engine Not Running With the read 5 15 there an A C Clutch Relay DTC Yes Refer to symptom P0645 A C CLUTCH RELAY in the HEATING amp A C category No gt GoTo 2 Turn Ignition Off Verify that the Refrigerant System is properly charged per service proc
248. e starts since set counter Zero on the DRB DTC screen for code P1685 Yes gt GoTo 2 No gt GoTo 7 Using the DRB attempt to communicate with SKIM Can you communicate with the SKIM Yes gt GoTo 3 No Refer symptom BUS SIGNAL OPEN FROM SKIM the COMMUNICATION category No gt GoTo 4 Note If VIN is not been programmed into the PCM program VIN into PCM and retest With the DRB display the VIN that is programmed in the PCM Is thea VIN programmed in the PCM Yes gt GoTo 5 Program the correct VIN into the PCM and retest Perform Powertrain Verification Test VER 1A Using the DRB check for trouble codes set in SKIM All Are there any trouble codes set in the SKIM Yes Repair all trouble codes set in SKIM first Perform Powertrain Verification Test VER 1A 32 COMMUNICATION P1685 INVALID SKIM KEY Continued ACTION APPLICABILITY With the DRB display the VIN that is programmed in the PCM All Is the correct VIN programmed in the PCM Yes gt GoTo 6 Replace the Powertrain Control Module PCM and program correct VIN in the PCM and retest Perform Powertrain Verification Test VER 1A Turn ignition off Replace the SKIM With the DRB erase all DTC s Attempt to start and idle the engine Using the DRB read the PCM trouble codes Does the DRB display this code Yes Replace the Powertrain Control Module Perform Powertrain Verification Test VE
249. eak Detection Pump Connect and apply a continuous vacuum supply i e 20 Hg to the Leak Detection Pump A vacuum pump such as an A C recovery unit works well With the DRB in System Tests select Leak Detect Pump Test Read instructions and then press Enter Select 8 HOLD PSI On Miller Tool 6872A set the Pressure H old switch to Open and set the Vent switch to Closed Turn the pump timer On and watch the gauge When the gauge pressure reaches 14 H 20 turn the Pressure Hold Valve to Closed Turn the pump timer off Disconnect the hose at the EVAP Canister that goes to the Fuel Tank Did the pressure drop when the hose was disconnected Yes gt GoTo 3 No Repair obstruction in the EVAP system between the Can ister and the fuel tank Perform Powertrain Verification Test VER 6 Note All previously disconnected hose s reconnected Re pressurize the EVAP System On Miller Tool 6872A set the Pressure Hold switch to Open and set the Vent switch to Closed Turn the pump timer On and watch the gauge When the gauge pressure reaches 14 20 turn the Pressure Hold Valve to Closed Turn the pump timer off Disconnect the LDP Pressure hose at the EVAP Canister The LDP Pressure hose is the hose that connects the Evap Canister to the Leak Detection Pump Did the pressure drop when the hose was disconnected Yes gt GoTo 4 No Replace the EVAP Canister Perform the Powertrain Verification Test Ver 6
250. ect a Vacuum Gauge to a Manifold Vacuum source Start the engine Allow the engine to idle Note If engine will not idle maintain a constant RPM above idle Using the DRB in Sensors read the MAP Sensor vacuum value 15 the DRB reading within 1 of the Vacuum Gauge reading Yes gt GoTo 8 No Replace the MAP Sensor Perform Powertrain Verification Test VER 5A 102 0171 1 1 FUEL SYSTEM LEAN Continued APPLICABILITY Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Using a test light connected to B check the fuel pump ground circuit Z1 at connector C308 Does the test light illuminate brightly Yes gt GoTo 9 No Repair the high resistance the fuel pump ground circuit Perform Powertrain Verification Test VER 1 Note Re connect connector C308 before performing the next test Visually inspect the fuel supply line from the fuel tank to the fuel rail Look for any signs of physical damage that may restrict the supply line Were any problems found with the fuel supply line Yes Repair replace fuel supply line as necessary gt GoTo 10 FUEL INJECTOR plugged or restricted injector control wire not connected to
251. ed the voltage change Perform Powertrain Verification Test VER 5 GoTo 12 Ignition Off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes gt Repair as necessary Perform Powertrain Verification Test VER 5 Ignition On Engine Not Running All With the DRBIII read the TPS voltage While monitoring the DRBIII slowly open and close the Throttle Is the voltage change smooth Yes gt GoTo No Replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 No Test Complete 86 DRIVEABILITY Symptom List 125 5 LOOP TEMP NOT REACHED 1281 1 COLD TOO LONG Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will 125 5 LOOP TEMP NOT REACHED E When Monitored and Set Condition P0125 CLOSED LOOP TEMP NOT REACHED When Monitored With battery voltage greater than 10 4 volts after engine is started for ten minutes Set Condition The engine temperature does not go above 18 deg F by 10 minutes after the engine is started Two trips are required to set this DTC P 1281 E NGINE 15 COLD TOO LONG When Monitored The ignition key on engine running Set Condition The engine does not warm to 176 deg F while driving for 20 minutes after start POSSIBLE CAUSES LOW COOLANT LEVEL THERMOSTAT ECT SENSOR OUT OF CALIBRATION HIGH RESISTANCE
252. ed to the SKIM the SKIM performs an internal self test After the self test is completed the SKIM neergizes the antenna this activates the transponder chop responds to the challenge by generating an encrypted response message using the following Secret Key This is an electronically stored value identification number that is unique to each SKIS The secret key is stored in the SKIM PCM and all ignition key tranponders Challenge This is a random numbr that is generated by the SKIM at each ignition key cyde The secret key and challenge are plugged into an algorithm that produces the encrypted response message The transponder uses the crypto algo rithm to receive decode and respond to the message sent by the SKIM After responding to the coded message the transponder sends a transponder 10 message to the SKIM The SKIM compares the transponder 10 to the available valid key codes the SKIM memory 8 key maximum After validat ing the key the SKIM sends a PCI Bus message called a Seed Request to the engine controller then waits for PCM response If the PCM does not respond the SKIM will send the seed request again After three failed attempts the SKIM will stop sending the seed request and store a trouble code If the PCM sends a seed response the SKIM sends a valid invalid key message to the PCM This is an encrypted message that is generated using the following VIN Vehicle Identification Number Seed This
253. edure 15 the Refrigerant System properly charged Yes gt GoTo 3 No Properly charge the Refrigerant System per the service proce dure Perform the Powertrain Verification Test Ver 2 Yes Repair all A C Pressure Sensor trouble codes first Perform the Powertrain Verification Test Ver 2 gt GoTo 4 Turn Ignition Off Disconnect the A C compressor clutch connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the A C Compressor Clutch Ground Circuit to ground Is the resistance below 5 0 ohms Yes gt GoTo 5 No Repair the open A C compressor clutch ground circuit Perform the Powertrain Verification Test Ver 2 Ignition On Engine Not Running All With the read 5 15 there A C Pressure Sensor DTC present 276 amp CHECKING A C SYSTEM OPERATION WITH DTC S Continued APPLICABILITY Turn Ignition Off Disconnect the A C Clutch Connector Note Check connectors Clean repair as necessary Remove the A C Clutch Relay Note Check connectors Clean repair as necessary With Ohmmeter measure the A C Clutch Relay Output from the Relay to the A C Clutch Coil Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open A C Clutch Relay Output Circuit Perform the Powertrain Verification Test Ver 2 Turn Ignition Off All Remove the A C Clutch Re
254. en press Enter Select 8 HOLD PSI On Miller Tool 6872A set the Pressure H old switch to Open and set the Vent switch to Closed Turn the pump timer On and watch the gauge Note If the pressure does not build up there is obviously a large leak in the system and the presence of strong fuel odor may be present A visual inspection should find a leak of substantial size When the gauge pressure reaches 14 H 20 turn the Pressure Hold Valve to Closed Turn the pump timer off Note the time and pressure Did the pressure drop more than 6 20 2 minutes Yes gt GoTo 3 gt GoTo 4 Note A thorough visual inspection of the Evap system hoses tubes and connections may save time in your diagnosis Look for any physical damage or signs of wetness at connections The strong smell of fuel vapors may aid diagnosis also To continue testing you will need Miller Tool 6904A Ultrasonic Leak Detector Note The LDP System Test should still be running If the DRB has timed out restart the System Test Using Miller Tool 6872A set the Pressure Hold Switch to Open and the Vent Switch to Closed Turn the pump timer on to pressurize re pressurize the Evap System Using the Ultrasonic Leak Detector start listening for leaks in the Evap System Carefully leak test all hoses tubes and connections Were any leaks heard with the Ultrasonic Leak Detector Yes Repair or replace the leaking component as necessary Perform Powertrain
255. en with the engine All off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer 15 the Fuel Inlet Strainer plugged Yes Replace the Fuel Pump Inlet Strainer No gt GoTo 11 If there no possible causes remaining replace the Fuel Pump Module View repair options Repair Replace the Fuel Pump Module Ignition On Engine Not Running With the DRBIII read the TPS voltage While monitoring the slowly open and close the Throttle 15 the voltage change smooth Yes gt GoTo 13 No Replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Ignition On Engine Not Running With the DRB read TP Sensor voltage Throttle must be against stop Is the voltage 0 92 or less with the Throttle closed Yes gt GoTo 14 No Check for a binding throttle condition If OK replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Turn the ignition on With the in nputs Outputs read the Veh Theft Security status Does the Veh Theft Security status read Fuel Yes gt GoTo 15 No Refer the Symptom list for problems related to Vehicle Theft Security Make sure the PCI Bus is functional and that the SKIM iS communicating on the PCI Bus 314 STARTING START AND STALL CONDITION Continued
256. eplace the EGR solenoid assembly Perform the Powertrain Verification Test Ver 2 180 P0406 EGR POSITION SENSOR VOLTS TOO HIGH Continued APPLICABILITY Turn ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 181 DRIVEABILITY Symptom P0420 1 1 CATALYTIC CONVERTER EFFICIENCY When Monitored and Set Condition P0420 1 1 CATALYTIC CONVERTER EFFICIENCY When Monitored After engine warm up to 147 deg F 180 seconds of open throttle operation at a speed greater than 20 mph with the engine at 1200 1700 rpm and MAP vacuum between 15 0 21 0 inches of mercury Set Condition As catalyst efficiency deteriorates the switch rate of the downstream O2 sensor approaches that of the upstream O2 sensor If at any point during the test the switch ratio reaches a predetermined value a counter is incremented by one POSSIBLE CAUSES CATALYST EFFICIENCY DTC DOES NOT REOCCUR ENGINE MECHANICAL PROBLEM EXHAUST LEAK CATALYTIC CONVERTER 1 1 UPSTREAM 02 SENSOR OLDER THA
257. eplace the fuel injector Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 4 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the fuel injector no 4 driver circuit from the fuel injector no 4 electrical connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open fuel injector no 4 driver circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 4 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the fuel injector no 4 driver circuit and ground B 15 the resistance below 5 0 ohms Yes Repair the injector driver circuit for a short to ground Note shorted injector driver circuit may have ruined the injector also Injector resistance should be between 10 and 16 ohms Perform the Powertrain Verification Test Ver 5 No gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 122 0204 1 4 CONTROL CIRCUIT Continued APPLICABILITY At this time the conditions required to set the DTC are not present All Note
258. equipped with a Sentry Key Immobilizer Module SKIM Secret Key data must be updated to enable start 5 For ABS and Air Bag systems Enter correct VIN and Mileage PCM Erase codes in ABS and Air Bag modules 6 For SKIM theft alarm Connect DRB to data link conn Go to Theft Alarm SKIM Misc and place SKIM in secured access mode by using the appropriate PIN code for this vehicle Select Update the Secret Key data Data will be transferred from SKIM to PCM 7 Attempt to start the engine 8 If the engine is unable to start look for any Technical Service Bulletins that may relate to this condition Return to Symptom List if necessary 9 If the engine starts and stays running the repair is now complete Repair is not complete refer to appropriate symptom 329 VERIFICATION TESTS Verification Tests Continued POWERTRAIN VERIFICATION TEST VER 2 1 Inspect the vehicle to ensure that all engine components are properly installed and connected Reassemble and reconnect components as necessary 2 If this verification procedure is being performed after a NO TROUBLE CODE repair perform steps 3 and 4 3 Check to see if the initial symptom still exists If there are no trouble codes or the symptom no longer exists the repair was successful and is now complete 4 If the initial or another symptom exists the repair is not complete Check all technical service bulletins or flash updates and return to Symptom list if necessary
259. er 5 Turn ignition off Disconnect the MAP Sensor Electrical Connector Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary With an Ohmmeter measure the MAP Sensor 5 Volt Supply Circuit for resistance to ground 15 the resistance below 5 0 ohms Yes Repair the 5 Volt Supply Circuit for a short to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 7 If there no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform Powertrain Test Verification VER 5A 60 0106 PRESSURE OUT OF RANGE Continued ACTION APPLICABILITY Turn the ignition off Disconnect the MAP Sensor Connector Turn ignition on With the DRB monitor the MAP Sensor Voltage Cycle the ignition switch from off to on Is the voltage between 2 2 and 4 9 volts Yes Repair the high resistance to ground in the MAP sensor signal circuit Perform Powertrain Test Verification VER 5A GoTo 9 Turn ignition off Disconnect the PCM Disconnect the MAP Sensor Electrical Connector Note Check connectors Clean repair as necessary Using an Ohmmeter Measure the MAP Sensor Signal Circuit for resistance between the PCM Connector and the MAP Sensor Connector Is the resistance below 5 0 ohms Yes gt GoTo 10 No Repair the open MAP Sensor Signal Circuit Perf
260. er keys into the SKIM s memory This requires that the SKIM bein secured access mode using the 4 digit code 11 Note If the PCM is replaced the unique Secret K ey data must be transfered from the SKIM to the PCM This procedure requires the SKIM to be placed in secured access mode using the 4 digit code 12 Note If 3 attempts are made to enter secured access mode using an incorrect PIN secured access mode will be locked out for 1 hour which causes the to display Bus Signals Open To exit this mode turn ignition to the pos for 1 hour 13 Ensure all accessories are turned off and the battery is fully charged 14 Ensurethat is on and with the DRBIII record and erase all Diagnostic Trouble Codes from ALL modules Start the engine and allow it to run for 2 minutes and fully operate the system that was malfunctioning 15 Turn the ignition off and wait 5 seconds Turn the ignition on and using the read DTC s from ALL modules 16 If ANY codes are present select the appropriate symptom from the Symptom List continue diagnostics If NO codes are present and the customers complaint cannot be duplicated the repair is complete Repair Repair is not complete refer to appropriate symptom 328 APPLICABILITY All VERIFICATION TESTS Verification Tests Continued FUEL SYSTEM MISFIRE MONITOR VERIFICATION TEST APPLICABILITY 1 If any existing DTC s have not been repa
261. er to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary No Complete 213 DRIVEABILITY Symptom P1289 MANIFOLD TUNE VALVE CONTROL CIRCUIT POSSIBLE CAUSES MTV SOLENOID MTV SOLENOID CONTROL CKT OPEN MTV SOLENOID SHORTED TO GND PCM WIRING HARNESS INTERMITTENT ASD RELAY OUTPUT CKT OPEN ASD RELAY OUTPUT CKT SHORTED TO GROUND ACTION APPLICABILITY Turn the ignition on With the DRB read DTC s 15 the global good trip counter equal to 0 for DTC P1289 Yes gt GoTo 2 gt GoTo 9 Disconnect the MTV solenoid harness connector Turn the ignition on With the DRB actuate the Manifold Tune Valve solenoid Measure the voltage between ASD relay output circuit and ground 15 the voltage above the 10 0 volts Yes gt GoTo 3 gt GoTo 7 With the DRB actuate the MTV solenoid Does the 12 volt test light flash on and off Yes Replace the Manifold Tune Valve Solenoid No gt GoTo 4 Turn the ignition off Disconnect the PCM harness connector Disconnect the MTV solenoid harness connector Measure the resistance of the MTV solenoid control circuit from the MTV solenoid harness connector and the PCM harness connector 15 the resistance below 5 0 ohms Yes gt GoTo 5 No Repair the open the MTV solenoid control circuit Turn the ignition on All Disconnect the MTV solenoid harness conne
262. ertrain Verification Test Ver 4 GoTo 4 Ignition On Engine Not Running SPEED CONTROL With the DRB actuate the S C Vent Solenoid Wiggle the Wiring Harness from S C Servo and Brake Switch to Powertrain Control Module Did the wiggling interrupt the S C Servo actuation Yes Repair as necessary where wiggling caused the actuation to be interrupted Perform the Powertrain Verification Test Ver 4 GoTo 5 Ignition On Engine Not Running SPEED CONTROL With the DRB actuate the S C Vacuum Solenoid Wiggle the Wiring Harness from S C Servo and Brake Switch to Powertrain Control Module Did the wiggling interrupt the S C actuation Yes Repair as necessary where wiggling caused the actuation be interrupted Perform the Powertrain Verification Test Ver 4 Test Complete 279 SPEED CONTROL P1595 SPEED CONTROL SOLENOID CIRCUITS Continued ACTION APPLICABILITY Ignition On Engine Not Running SPEED CONTROL With the DRB actuate the S C Vent Solenoid Wiggle the Wiring Harness from S C Servo and Brake Switch to Powertrain Control Module Did the wiggling interrupt the S C Servo actuation Yes Repair as necessary where wiggling caused the actuation to be interrupted Perform the Powertrain Verification Test Ver 4 No GoTo 7 Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo 4 Way Connector Note Check connectors Clean repair as necessary Note E nsure the Brake Pedal is not depressed
263. esistance below 5 0 ohms for both circuits Yes gt GoTo 2 Repair the open ground Perform Powertrain Verification Test VER 1A With the DRB attempt to read trouble codes Was the ignition on when the RESPONSE message was displayed Yes gt GoTo 3 Turn ignition on to get a response Perform Powertrain Verification Test Yes gt GoTo 4 Replace the DRB Adapter Cable Perform Powertrain Verification Test VER 1A Turn ignition off Disconnect the Powertrain Control Module Disconnect DRB from the Data Link Connector DLC Using an Ohmmeter measure the resistance of the SCI Receive Circuit from the PCM to the DLC 15 the resistance below 5 0 ohms Yes gt GoTo 5 No Repair the open SCI Receive Circuit Perform the Powertrain Verification Test Ver 1 Substitute another DRB adapter cable All With the DRB attempt to read trouble codes Did the DRB display No Response 51 COMMUNICATION NO RESPONSE FROM PCM SCI ONLY Continued ACTION APPLICABILITY Turn ignition off Disconnect the Powertrain Control Module Disconnect DRB from the Data Link Connector DLC Using an Ohmmeter measure the resistance between the SCI Receive Circuit and ground Is the resistance below 5 0 ohms Yes Repair the SCI Receive Circuit for a short to ground Perform the Powertrain Verification Test Ver 1 gt GoTo 6 Turn ignition off
264. ess connectors as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 171 Symptom P0403 EGR SOLENOID CIRCUIT When Monitored and Set Condition P0403 EGR SOLENOID CIRCUIT When Monitored With the ignition on and the engine running and the battery voltage greater than 10 4 volts Set Condition The EGR solenoid control circuit is not in the expected state when requested to operate by the PCM POSSIBLE CAUSES EGR SOLENOID ASSEMBLY WIRING HARNESS INTERMITTENT ASD RELAY OUTPUT CIRCUIT OPEN EGR SOLENOID CONTROL CKT OPEN EGR SOLENOID CONTROL CKT SHORT TO GND EGR SOLENOID CONTROL CKT SHORTED TO SENSOR GND PCM APPLICABILITY Turn the ignition on All With the read the DTC s 15 the Global Good Trip counter equal to 0 Yes gt GoTo 2 No gt GoTo 8 Turn the ignition on Turn all accessories off Disconnect the EGR solenoid harness connector Using a 12 volt Test Light connected totheASD relay out ckt probe the EGR solenoid control circuit at EGR solenoid harness connector With the DRB actuate the EGR solenoid Does the 12 volt test light flash on and off Yes gt Replace the EGR solenoid assembly Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 172 P0403 SOLENOID CIRCUIT Continued APPLICABILITY Turn the igntion off Disconnect the EGR solenoid harness
265. et Condition The Engine Coolant Temperature ECT sensor circuit voltage at the PCM goes above 4 98 volts for more than 3 seconds POSSIBLE CAUSES SENSOR GROUND CIRCUIT OPEN ECT SENSOR SIGNAL CIRCUIT OPEN ECT SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE ECT WIRING HARNESS INTERMITTENT ECT SENSOR POWERTRAIN CONTROL MODULE ACTION APPLICABILITY Turn ignition on All With the read the 5 15 the Global Good Trip Counter displayed and equal to zero for P0118 Yes gt GoTo 2 gt GoTo 7 Turn the ignition off Disconnect the ECT Sensor harness connector Using an Ohmmeter measure the resistance between the Sensor Ground circuit and ground B at the ECT Sensor connector Is the resistance below 5 0 ohms No Repair the open circuit Perform the Powertrain Verification Test Ver 5 Yes gt GoTo 3 Turn the ignition off Disconnect the ECT Sensor harness connector Disconnect the PCM harness connectors Using an Ohmmeter measure the resistance of the ECT Sensor Signal circuit from the ECT Sensor connector to the PCM connector 15 the resistance below 5 0 ohms No Repair the open circuit Perform the Powertrain Verification Test Ver 5 Yes gt GoTo 4 75 DRIVEABILITY 0118 SENSOR VOLTAGE TOO HIGH Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the ECT harness connector Start the engine Allow engine to idle Using a Voltmeter measure the EC
266. f Yes Replace the Leak Detection Pump Perform Powertrain Verification Test VER 5A No GoTo 3 245 DRIVEABILITY P1495 LEAK DETECTION PUMP SOLENOID CIRCUIT Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Leak Detection Pump electrical connector Turn ignition on Using a 12 volt test light connected to ground check the Fused Ignition Switch Output Circuit at the LDP connector Does the test light illuminate brightly Yes gt GoTo 4 No Repair the open Fused Ignition Switch Output Circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Leak Detection Pump electrical connector Disconnect the Powertrain Control Module connectors Using Ohmmeter measure the resistance of the LDP Solenoid Control circuit from the LDP connector to the PCM connector 15 the resistance below 5 0 Ohms Yes gt GoTo 5 No Repair the open LDP Solenoid Control Circuit Perform Powertrain Verification Test VER 5 Turn ignition off Disconnect the Leak Detection Pump electrical connector Disconnect the Powertrain Control Module connectors Using an Ohmmeter measure the resistance between the LDP Solenoid Control circuit and ground 15 the resistance below 5 0 Ohms Yes Repair the LDP Solenoid Control Circuit for a short to ground Perform Powertrain Verification Test VER 5 No GoTo 6 If there are no possible causes remaining replace
267. f Disconnect the coil on plug no 5 connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the coil driver 5 circuit and ground B Is the resistance below 5 0 ohms Yes Repair the driver 5 circuit shorted to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the coil on plug no 5 connector 163 DRIVEABILITY 55 COIL 5 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Note The conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform a wiggle test of the coil on plug wiring while the engine is running Listen for the engine to miss or stall Also watch for the Good Trip Counter to chan
268. form the Powertrain Verification Test Ver 2 Turn the ignition off Disconnect the EGR solenoid harness connector Turn the ignition on Measure the voltage of the EGR solenoid control circuit in the EGR solenoid connector 15 the voltage above 4 9 volts Yes Repair the short to voltage the EGR solenoid control circuit Perform the Powertrain Verification Test Ver 2 GoTo 12 170 DRIVEABILITY P0401 EGR SYSTEM FAILURE Continued APPLICABILITY Turn the ignition off All Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Measure the resistance of the EGR solenoid control circuit between the PCM connector and the EGR solenoid connector 15 the resistance below 5 0 ohms Yes gt GoTo 13 No Repair the open the EGR solenoid control circuit Perform the Powertrain Verification Test Ver 2 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 2 Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harn
269. fter the sixth attempt the PCM disables the starter relay until the fault is corrected 3 2 9 PROGRAMMING THE POWERTRAIN CONTROL MODULE Important Note Before replacing the PCM for a failed driver control circuit or ground circuit be sure to check the related component circuit integ rity for failures not detected due to a double fault in the circuit Most PCM driver control circuit failures are caused by internal failure to components i e 12 volt pull ups drivers and ground sensors These failures are difficult to detect when a double fault has occurred and only one DTC has set NOTE IF THE PCM AND THE SKIM ARE REPLACED AT THE SAME TIME PROGRAM THE VIN INTO THE PCM FIRST ALL VEHICLE KEYS WILL THEN NEED TO BE REPLACED AND PROGRAMMED TO THE NEW SKIM The SKIS Secret Key is an ID code that is unique to each SKIS This code is programmed and stored in the SKIM engine controller and transpon der ship ignition key When replacing the PCM it is necessary to program the secret key into the PCM Turn the ignition on transmission park neutral 2 Use the DRB and select THEFT ALARM SKIM then MISCELLANEOUS 3 Select PCM REPLACED 4 Enter secured access mode by entering the vehi cle four digit PIN NOTE IF THREE ATTEMPTS ARE MADE ENTER THE SECURE ACCESS MODE USING AN INCORRECT PIN SECURED ACCESS MODE WILL BE LOCKED OUT FOR ONE HOUR TO EXIT THIS LOCKOUT MODE TURN THE IGNITION TO THE
270. g connector instrument panel wiring side SPEED CONTROL Turn ignition on with engine not running With the DRB read the S C Switch volts in Sensors Did the S C Switch volts change to 5 0 volts Yes Replace the Clockspring Perform the Powertrain Verification Test Ver 4 No GoTo 35 294 SPEED CONTROL CHECKING SPEED CONTROL OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Turn ignition off SPEED CONTROL Disconnect the S C ON OFF Switch Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance between the S C Signal Circuit and the Sensor Ground Circuit at the ON OFF switch connector 15 the resistance below 5 0 ohms Yes Repair S C Signal Circuit shorted to Sensor Ground Perform the Powertrain Verification Test Ver 4 GoTo 36 Turn ignition off SPEED CONTROL Disconnect the S C ON OFF Switch Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary With an Ohmmeter measure resistance of S C Switch Signal Circuit to ground at the PCM Connector 15 the resistance below 5 0 ohms Yes Repair S C Switch Signal Circuit for a short to ground Perform the Powertrain Verification Test Ver 4 No GoTo 37 If there are no possible causes remaining replace the Powertrain Control Module SPEED CONTROL View repair options Repair Replace the Powertrain C
271. ge to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 Test Complete 164 Symptom 56 COIL 6 PRIMARY CIRCUIT MMMM When Monitored and Set Condition 56 COIL 6 PRIMARY CIRCUIT When Monitored With battery voltage greater than 8 volts during engine cranking or greater than 12 volts with engine running engine rpm less than 2016 and none of the coils in dwell when checked Set Condition Peak current is not achieved with battery based dwell plus 1 5 msec of diagnostic offset It takes less than 3 seconds during cranking or up to 6 seconds while running to set POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT COIL DRIVER NO 6 CIRCUIT OPEN WIRING HARNESS INTERMITTENT COIL DRIVER NO 6 CIRCUIT SHORTED TO GROUND COIL ON PLUG NO 6 POWERTRAIN CONTROL MODULE COIL DRIVER NO 6 ACTION APPLICABILITY Turn ignition on All With the DRB read the Is the Global Good Trip Counter displayed and equal to zero for P 0356 Yes gt GoTo 2 GoTo 8 Turn ignition off Disconnect the coil on plug no 6 connector Note The following resistance measurement should be taken at 70 80 degrees F Using an ohmmeter measure the primary resistance of the coil on plug Is the resistance between 0 6 and 0 9 ohms Yes gt GoTo 3 No Repla
272. ghtly at all ground circuits Yes gt GoTo 6 No Repair the Ground as necessary Perform the 42LE Transmission Verification Test Ver 1 Turn ignition off to the lock position Disconnect the Transmission Control Module TCM harness connector Connect the ground clip of a test light to known good ground Connect the other end to the Fused B circuit the TCM connector Does the test light illuminate brightly Yes gt GoTo 7 No Repair Fused Circuit wiring or connectors Perform the 42LE Transmission Verification Test Ver 1 Turn ignition off to the lock position Disconnect the Transmission Control Module TCM harness connector Disconnect the Body Control Module BCM harness connector Note Check connectors Clean repair as necessary Measure the resistance of the PCI Bus circuit from the TCM connector to the BCM connector 15 the resistance above 5 0 ohms Yes Repair the open Bus circuit between the TCM and the BCM Perform the 42LE Transmission Verification Test Ver 1 GoTo 8 54 COMMUNICATION NO RESPONSE FROM TCM Continued APPLICABILITY TheTransmission Control Module has a bus problem and must be replaced All View repair options Repair Replace the Transmission Control Module Perform the 42LE Transmission Verification Test Ver 1 55 COMMUNICATION Symptom BUS COMMUNICATION FAILURE POSSI
273. ging voltage above 15 1 volts Yes gt GoTo 2 No gt GoTo 3 Turn ignition off Note Battery must be fully charged Note Generator Belt tension and condition must be checked before con tinuing Start engine and allow it to reach operating temperature With the DRB read the BTS temperature Using a Thermometer measure under hood temperature 15 the temperature within 10 F degrees of Battery temperature Yes gt GoTo 3 No Replace the PCM Perform the Powertrain Verification Test Ver 3 24 CHARGING P1682 CHARGING SYSTEM VOLTAGE TOO LOW Continued ACTION APPLICABILITY Turn ignition on engine not running All Using a Voltmeter measure voltage between the Generator B Terminal and the Battery Post Caution Ensure all wires are clear of the engine s moving parts Start engine Is the voltage above 0 4 volt Yes Repair the B Circuit for high resistance between the Generator and Battery Perform the Powertrain Verification Test Ver 3 GoTo 4 Start engine Warm the engine to operating temperature Caution Ensure all wires are clear of the engine s moving parts Using Voltmeter measure voltage between the Generator case and Battery Post 15 the voltage above 0 1 volt Yes gt Repair Generator Ground for high resistance Generator Case to Battery side Perform the Powertrain Verification Test Ver 3 GoTo 5 Start engine Turn on all accessories manually
274. gnition Off Tee in a Vacuum Gauge to a Manifold Vacuum source Start the engine Allow the engine to idle Note If engine will not idle maintain a constant RPM above idle Using the DRB read the MAP Sensor vacuum 15 the reading within 1 of the teed in Vacuum Gauge Yes gt GoTo 8 Replace the MAP Sensor Perform Powertrain Verification Test VER 5A 78 DRIVEABILITY 0121 5 VOLTAGE DOES NOT AGREE WITH MAP Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the Throttle Position Sensor Note Check connectors Clean repair as necessary Turn the ignition on Using a Voltmeter measure the Throttle Position Sensor 5 Volt Supply Circuit at the TPS Connector 15 the voltage below 4 0 volts Yes gt GoTo 9 GoTo 13 Turn the ignition on With the DRB read the Throttle Position Sensor voltage 15 the voltage above 1 0 volt Yes Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 gt GoTo 10 Ignition On Engine Not Running With the read the TPS Volt Open the Throttle Plate to wide open throttle 15 the Throttle Position Sensor voltage above 3 5 volts Yes gt GoTo 11 No Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 Disconnect the Throttle Position Sensor harness connector Disconnect the PCM harness connector Using an ohmmeter measure the res
275. gnition key on Use 12 volt test light in the following step With the 12V test light connected to ground probe the Fused Ignition in the PCM Connector Is the test light illuminated and bright Yes gt GoTo 5 Repair the open or high resistance used Ignition Switch Output Circuit between PCM amp Ignition Switch Perform the Powertrain Verification Test Ver 1 Turn the Ignition Off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Use 12 volt test light in the following step Connect the test light to Ground Probe the B Circuit in the PCM Connector Is the test light illuminated and bright No Repair the fused B circuit for High resistance If open circuit PCM will show NO RESPONSE Perform Powertrain Verification Test VER 1A GoTo 6 Turn ignition off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Usea 12 volt test light in the following step Connect 12V test light to Probe the Ground Circuits one at a time in the PCM Connector Was the light illuminated and bright in each circuit Yes gt GoTo 7 No Repair the ground s for an open or high resistance at the Powertrain Control Module Perform the Powertrain Verification Test Ver 1 45 COMMUNICATION P1698 NO BUS MESSAGE FROM TRANS CONTROL MODULE Continued ACTION APPLICABILITY With the DRB read P
276. gnosis Look for any physical damage or signs of wetness at connections The strong smell of fuel vapors may aid diagnosis also Note Refer to any Technical Service Bulletins TSB s that may apply With the DRB in System Tests perform the LDP Monitor Test This will force the PCM torun the LDP Monitor If the monitor fails further diagnosis is required to find faulty component If the monitor passes the condition is not present at this time Were any problems found Yes gt Repair as necessary Perform Powertrain Verification Test VER 6 No Test Complete 238 DRIVEABILITY Symptom 1489 SPEED FAN CONTROL RELAY CIRCUIT When Monitored and Set Condition P1489 HIGH SPEED FAN CONTROL RELAY CIRCUIT When Monitored With the ignition key on battery voltage greater than 10 0 volts and the PCM requests the radiator fan to be turned on Set Condition An open or shorted circuit is detected in the radiator fan relay control circuit POSSIBLE CAUSES RADIATOR FAN CTRL RLY CIRCUIT WIRE HARN INTERMITTENT PROBLEM RADIATOR FAN CTRL RLY CIRCUIT WIRE HARN OBSERVABLE PROBLEM FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN RADIATOR FAN RELAY CONTROL CIRCUIT OPEN RADIATOR FAN RELAY CONTROL CIRCUIT SHORT TO GROUND RADIATOR FAN CONTROL RELAY PCM ACTION APPLICABILITY Turn the ignition on All With the DRB actuate the High Speed Radiator Fan relay Does the Radiator Fan Relay Cycle on and off Yes gt GoTo 2 No gt Go
277. greater than 1500 Set Condition This code will set if no vehicle speed signal is received from the TCM transmission control module for more than 11 seconds for 2 consecutive trips POSSIBLE CAUSES INTERMITTENT VEHICLE SPEED SIGNAL VEHICLE SPEED SIGNAL CIRCUIT OPEN VEHICLE SPEED SIGNAL CIRCUIT SHORTED TO GROUND VEHICLE SPEED SIGNAL CIRCUIT SHORTED TO VOLTAGE POWERTRAIN CONTROL MODULE TRANSMISSION CONTROL MODULE ACTION APPLICABILITY With the DRB III read All Is the Global Good Trip Counter for P 0500 displayed and Equal to 0 Yes gt GoTo 2 No gt GoTo 7 Turn ignition off Disconnect the Transmission Control Module harness connector Turn ignition on Using a voltmeter measure the Vehicle Speed Sensor Signal circuit at the Transmis sion Control Module harness connector Is the voltage above 6 0 volts Yes gt Repair the short to voltage in the vehicle speed sensor signal circuit Perform the Powertrain Verification Test Ver 5 No GoTo 3 195 DRIVEABILITY 500 VEHICLE SPEED SIGNAL Continued APPLICABILITY Turn ignition off Disconnect the Transmission Control Module harness connector Connect jumper wire to the Vehicle Speed Sensor Signal circuit the Transmission Control Module harness connector Turn ignition on Quickly and repeatedly tap the jumper wire to ground With the DRB III read the Vehicle Speed Signal display 15 the DRB reading Vehicle Spee
278. ground Perform the Powertrain Verification Test Ver 5 No gt GoTo 5 Turn ignition off Disconnect the Crankshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between the 8 volt supply circuit and the sensor ground circuit at the CKP Sensor connector Is the resistance below 5 0 ohms Yes Repair the 8 volt supply circuit shorted to the sensor ground circuit Perform the Powertrain Verification Test Ver 5 GoTo 6 135 DRIVEABILITY 20 CRANK REFERENCE SIGNAL AT PCM Continued ACTION APPLICABILITY Turn ignition off Disconnect the Crankshaft Position Sensor connector Turn ignition on Using a voltmeter measure the CKP signal circuit at the CKP Sensor connector Select a conclusion that best matches your voltage measurement Less than 4 5 volts GoTo 11 Between 4 5 and 5 5 volts GoTo 7 Between 7 5 and 8 5 volts Repair the CKP signal circuit for a short to the 8 volt supply circuit Perform the Powertrain Verification Test Ver 5 Greater than 8 5 volts Repair the CKP signal circuit shorted to voltage Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect and remove the crankshaft position sensor Inspect the tone wheel flex plate for physical damage Make sure that it turns when the engine is cranked 15 the tone wheel pulse ring
279. harness free from defects Yes gt GoTo 21 No Repair replace harness as necessary Perform Powertrain Verification Test VER 1A If there are no possible causes remaining replace the Fuel Pump Module View repair options Repair Replace the Fuel Pump Module Perform Powertrain Verification Test VER 1A Turn ignition off Remove the fuel pump relay from the PDC Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Using an ohmmeter measure the fuel pump relay output circuit A141 from the relay connector to the connector C308 Is the resistance below 5 0 ohms Yes gt GoTo 23 No Repair the open fuel pump relay output circuit Perform Powertrain Verification Test VER 1 Turn ignition off Remove the fuel pump relay from the PDC Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary With a 12 volt test light connected to ground check the fuel pump relay fused B circuit Is the voltage above 10 0 volts Yes gt GoTo 24 No Repair the open high resistance in the fused B circuit NOTE Check for open fuse in the PDC Perform Powertrain Verification Test VER 1 If there are no possible causes remaining replace
280. has reset any other has set check all pertinent Technical Service Bulletins and return to Symptom List if necessary 14 If there are no codes the repair is now complete Repair is not complete refer to appropriate symptom 330 APPLICABILITY All APPLICABILITY All VERIFICATION TESTS Verification Tests Continued POWERTRAIN VERIFICATION TEST VER 4 APPLICABILITY 1 Inspect the vehicle to ensure that all engine components are properly installed and All connected Reassemble and reconnect components as necessary 2 Connect the DRB to the data link connector and erase all codes 3 If the PCM has been replaced perform steps 4 through 6 then continue with the verification 4 If PCM has been changed and correct VIN and mileage have not been programmed DTC will be set in ABS and Air bag modules In addition if vehicle is equipped with a Sentry Key Immobilizer Module SKIM Secret Key data must be updated to enable start 5 For ABS and Air Bag systems Enter correct VIN and Mileage in PCM Erase codes in ABS and Air Bag modules 6 For SKIM theft alarm Connect to data link conn Go to Theft Alarm SKIM Misc and place SKIM in secured access mode by using the appropriate PIN code for this vehicle Select Update the Secret Key data Data will be transferred from SKIM to PCM 7 Turn the speed control ON if equipped cruise light will be on 8 Depress and release the SET Switch If the speed con
281. he CKP sensor connector to the PCM connector 15 the resistance below 5 0 ohms Yes gt GoTo 12 No Repair the open CKP signal circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Crankshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the CKP Sensor signal circuit and ground Is the resistance below 5 0 ohms Yes Repair the CKP signal circuit for a short to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 13 Turn ignition off Disconnect the Crankshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the CKP Sensor Signal circuit and the Sensor Ground circuit at the CKP Sensor connector 15 the resistance below 5 0 ohms Yes Repair the CKP signal circuit for a short to the sensor ground circuit Perform the Powertrain Verification Test Ver 5 GoTo 14 137 DRIVEABILITY 20 CRANK REFERENCE SIGNAL AT PCM Continued APPLICABILITY Turn ignition off Disconnect the Crankshaft Position Sensor connector Using an ohmmeter measure the resistance between the Sensor Ground circuit in the CKP Sensor connector and Ground 15 the resistance below 5 0 ohms Yes gt GoTo 15 GoTo 20 Turn ignition off Disconnect and remove the crankshaft po
282. he Crankshaft Position Sensor for proper installation and tightness 15 the Crankshaft Position Sensor properly installed and the mounting bolt s tight Yes gt GoTo 6 No as necessary Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect and remove the crankshaft position sensor Inspect the tone wheel flexplate slots for damage foreign material or excessive movement 15 the tone wheel flexplate free from defects Yes gt GoTo 7 No Repair replace tone wheel flex plate as necessary If there are no possible causes remaining replace the Crankshaft Position Sensor View repair options Repair Replace the Crankshaft Position Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off 235 Symptom P1486 EVAP LEAK MONITOR PINCHED HOSE FOUND When Monitored and Set Condition P1486 E VAP LEAK MONITOR PINCHED HOSE FOUND When Monitored Immediately after a cold start with battery ambient temperature between 4 C 40 F and 32 C 90 F and coolant temperature within 12 C 10 F of battery ambient Set Condition LDP test must pass first the PCM suspects a pinched hose it will not set a fault until it runs the evap purge flow monitor If the purge monitor does not pass then the pinched hose fault will be set POSSIBLE CAUSES EVAP CANISTER OBSTRUCTED LDP PRESSURE HOSE OBSTRUCTED LEAK DETECTION PUMP INTERMITTENT LD
283. he Generator Belt tension and condition 15 the Generator Belt OK Yes gt GoTo 2 No as necessary Perform the Powertrain Verification Test Ver 3 Start the Engine Turn on all accessories Raise engine speed to 2000 RPM for 30 seconds then return to idle With the III read Are there any Charging System Trouble Codes Yes Refer to Symptom list for problems related to Charging Perform the Powertrain Verification Test Ver 3 No gt GoTo 3 Ignition On Engine Not Running With the DRB actuate the Generator Field Using 12 volt test light backprobe the Generator Field Driver Terminal at the back of the Generator Note The test light should blink On and Off every 1 4 seconds While monitoring the 12 volt test light wiggle the Field Terminals back to the PCM and ASD Relay Was there any interruption in the normal cycle of the test light Yes Repair the wire where wiggling interrupted the voltage cycle Perform the Powertrain Verification Test Ver 3 gt GoTo 4 27 CHARGING CHECKING CHARGING SYSTEM OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Ignition On Engine Not Running All With the DRB read trouble codes Are there any Charging System trouble codes Yes Refer to Symptom list for problems related to Charging Perform the Powertrain Verification Test Ver 3 No gt GoTo 5 Turn ignition on engine not running U
284. he open 5 Volt Supply Circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the MAP Sensor Electrical Connector Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary With an Ohmmeter measure the MAP Sensor 5 Volt Supply Circuit for resistance to ground 15 the resistance below 5 0 ohms Yes Repair the 5 Volt Supply Circuit for a short to ground Perform the Powertrain Verification Test Ver 5 No gt GoTo 11 If there no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform Powertrain Test Verification VER 5A Turn ignition off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes Repair as necessary Perform Powertrain Test Verification VER 5A gt GoTo 13 Warning KEEP CLEAR OF THE ENGINE S MOVING PARTS Start engine With the DRB read the MAP Sensor voltage Wiggle MAP Sensor Connector amp Harness Monitor the DRB display Was there any MAP Sensor voltage change Yes Repair the Harness or Connector that caused the voltage change Perform Powertrain Test Verification VER 5A No Test Complete 220 DRIVEABILITY P1297 NO CHANGE IN MAP FROM START TO RUN Continued ACTION APPLICABILITY Ignition On Engine Not Running All With the DRB erase codes Start engine and allow engine
285. hed or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform wiggletest of the injector wiring whilethe engineis running Listen for the engine to miss or stall Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 117 DRIVEABILITY Symptom 0203 ECTOR 3 CONTROL CIRCUIT When Monitored and Set Condition P0203 I NJ ECTOR 3 CONTROL CIRCUIT When Monitored With battery voltage greater than 10 4 volts the auto shutdown relay energized injector pulse width less than 10ms and engine speed less than 3000 rpm Set Condition This trouble code takes 64 to 10 0 seconds to set when no inductive kick is sensed 18ms after injector turn off and with no other injectors on POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT FUEL INJ ECTOR WIRING HARNESS INTERMITTENT FUEL INJ ECTOR NO 3 DRIVER CIRCUIT OPEN FUEL INJ ECTOR NO 3 DRIVER CIRCUIT SHORTED TO GROUND POWERTRAIN CONTROL MODULE INJ ECTOR DRIVER APPLICABILITY Turn ignition on All With the read the 15 the Global Good Trip Counter displayed and equal to zero for P 0203 Yes gt GoTo 2 gt GoTo
286. hen Monitored Ignition key on Set Condition messages received from the MIC Instrument Cluster for 20 seconds POSSIBLE CAUSES INSTRUMENT CLUSTER DEFECTIVE WIRING HARNESS INTERMITTENT DEFECT PCI BUS CIRCUIT OPEN FROM PCM TO MIC ACTION APPLICABILITY Turn ignition on Engine not running All Using the DRB erase codes Cycle the ignition key on and off several times With the DRB read PCM trouble codes LOOK for P1687 Did the No PCI Bus Message from MIC trouble code return Yes gt GoTo 3 No gt GoTo 2 Turn the ignition key on Engine not running Does the Odometer in the Instrument Cluster display Bus Yes gt GoTo 3 gt GoTo 4 Turn ignition off Disconnect the PCM Disconnect the Instrument Cluster Connector Using an ohmmeter measure the PCI Bus Circuit between the PCM and the Instrument Cluster Connector 15 the resistance below 5 0 ohms Yes Replace the Instrument Cluster Perform Powertrain Verification Test VER 1A No Repair the open PCI Bus Circuit Perform Powertrain Verification Test VER 1A 36 COMMUNICATION P1687 NO CLUSTER BUS MESSAGE Continued APPLICABILITY Turn ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Techn
287. ht in the following step Connect the test light to Ground Probe the Circuit in the PCM Connector Is the test light illuminated and bright No Repair the fused B circuit for High resistance If open circuit PCM will show RESPONSE Perform Powertrain Verification Test VER 1A GoTo 4 49 COMMUNICATION NO RESPONSE FROM PCM PCI BUS Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Use 12 volt test light in the following step Connect 12V test light to B Probe the Ground Circuits one at a time in the PCM Connector Was the light illuminated and bright in each circuit Yes gt GoTo 5 No Repair the ground s for an open or high resistance at the Powertrain Control Module Perform the Powertrain Verification Test Ver 1 With the DRB read PCM Diagnostic Trouble Codes This is to ensure power and grounds to the PCM are operational Note If the DRB will not read PCM DTC s follow the NO RESPONSE TO PCM SCI only symptom path if vehicle will start For NO START Condi tions follow symptom NO RESPONSE in Starting catagory Turn ignition off Disconnect the Powertrain Control Module Connect the to the Data Link connector Use Scope input cable CH 7058 Cable to Probe adapter CH 7062 and the red and black test probes Connect the scope input cable to the
288. ical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 1A No Test Complete 37 COMMUNICATION Symptom P1695 NO CCD 1850 MESSAGE FROM BODY CONTROL MODULE When Monitored and Set Condition P1695 NO CCD 1850 MESSAGE FROM BODY CONTROL MODULE When Monitored With the ignition on engine running auto transmission must be in drive and battery voltage greater than 10 0 volts Set Condition No messages recieved from the BCM for 20 seconds POSSIBLE CAUSES BCM DEFECTIVE FUSED B CIRCUIT LESS THAN 10 0 VOLTS FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN PCM GROUND CIRCUIT S OPEN WIRING HARNESS INTERMITTENT DEFECT BUS OPEN PCM DEFECTIVE ACTION APPLICABILITY Turn the ignition on All With the DRBIII read 5 Is the Starts Since Set counter displayed and equal to one or below Yes gt GoTo 2 gt GoTo 8 Note If the BUS is not operational it will display on the odometer Does the odometer display Bus Yes Refer to symptom PCI BUS COMMUNICATION FAILURE in the COMMUNICATION category No gt GoTo 3 Turn ignition off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Turn the ignition key on Use a 12 volt test light the following step With the 12V test light connected to ground probe the Fu
289. ification Test Ver 5 Turn ignition off Disconnect the coil on plug no 3 connector Disconnect the Powertrain Control Module connectors Using ohmmeter measure the resistance between the coil driver circuit and ground B Is the resistance below 5 0 ohms Yes Repair the coil driver no 3 circuit shorted to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the coil on plug no 3 connector 157 DRIVEABILITY P0353 IGNITION COIL 3 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Note The conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform a wiggle test of the coil on plug wiring while the engine is running Listen for the engine to miss or stall Also watch fo
290. ignition on Engine not running Connect the and try to access the SKIM module With the DRB select vehicle Theft Alarm and read SKIM Trouble Codes Note This test will indicate if the Bus is operational from DLC to SKIM Were you able to establish communication to the SKIM Yes gt GoTo 3 No Refer tosymptom BUS SIGNAL OPEN FROM SKIM the COMMUNICATION category Turn ignition off Disconnect the PCM Disconnect the SKIM Using an ohmmeter measure the PCI Bus Circuit between the PCM and SKIM 15 the resistance below 5 0 ohms Yes Replace the Powertrain Control Module Perform Powertrain Verification Test VER 1A Repair the open PCI Bus Circuit Perform Powertrain Verification Test VER 1A 34 COMMUNICATION P1686 NO SKIM BUS MESSAGE RECEIVED Continued APPLICABILITY Turn ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 1A No Test Complete 35 COMMUNICATION Symptom P1687 NO CLUSTER BUS MESSAGE When Monitored and Set Condition P1687 NO CLUSTER BUS MESSAGE W
291. in Verification Test Ver 5 Turn ignition off Disconnect the coil on plug no 2 connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure resistance between the coil driver 2 circuit and ground B Is the resistance below 5 0 ohms Yes Repair the driver no 2 circuit shorted to ground Perform the Powertrain Verification Test Ver 5 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the coil on plug no 2 connector 154 52 COIL 2 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Note The conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform a wiggle test of the coil on plug wiring while the engine is running Listen for the engine to miss
292. in one engine revolution After the crankshaft position has been determined the PCM energizes the fuel injectors in sequence The PCM adjusts the in jector pulse width and synchronizes the fuel injectors by controlling the fuel injectors ground paths 3 Once the engine idles within 64 rpm of its target engine speed the PCM compares the current MAP sensor value with the value received dur ing the ignition switch on zero rpm mode A diagnostic trouble code is written to PCM mem ory if a minimum difference between the two values is not found Once the auto shutdown and fuel pump relays have been energized the PCM determines the fuel injector pulse width based on the following engine coolant temperature manifold absolute pressure intake air temperature engine revolutions throttle position The PCM determines the spark advance based on the following engine coolant temperature crankshaft position camshaft position intake air temperature manifold absolute pressure throttle position Engine Warm Up Mode This is an open mode The PCM adjusts injector pulse width and controls injector synchronization by controlling the fuel injectors ground paths The PCM adjusts igni tion timing and engineidle speed The PCM adjusts the idle speed by controlling the idle air control motor and spark advance Cruise or Idle Mode When the engine is at normal operating temperature this is a closed l
293. in this System Test than OBDII LDP Monitor System Test only stores Small Leak DTC to indicate problem with system No other type of failure mode indication given 13 System Test failure may have been for example due to a large leak but the PCM will set the Small Leak DTC to indicate failures that occurred as part of the system test 14 Connect the DRB to the data link connector Engine running turn off all accessories 15 Note While test is being performed PCM must see RPM minimum MAP No Vehicle speed and minimum Throttle Position sensor At idle in park With in System Tests perform the LDP Monitor Test and follow the instructions on the screen 16 If the LDP Monitor Test failed and a Small Leak DTC has set the repair is not complete Check for any related Technical Service Bulletins and return to Symptom List 17 If any other trouble code has set return to Symptom List and follow the path specified for that trouble code If the LDP Monitor Test passed the repair was successful and testing is now complete Repair is not complete refer to appropriate symptom 333 VERIFICATION TESTS Verification Tests Continued SKIS VERIFICATION 1 Reconnect all previously disconnected components and connectors 2 Obtain the vehicle s unique Personal Identification Number PIN assigned to it s original SKIM This number can be obtained from the vehicle s invoice or Chrysler s Customer Center 1 800 992 1997
294. ired go to Symptom List and follow path specified All 2 Inspect the vehicle to ensure that all engine components are properly installed and connected Reassemble and reconnect components as necessary 3 Connect the DRBIII to the data link connector 4 Ensure the fuel tank has at least a quarter tank of fuel Turn off all accessories 5 Perform steps 6 through 8 if the PCM has been replaced Then proceed with the verification If the PCM has not been replaced skip those steps and continue verification 6 If PCM has been changed and correct VIN and mileage have not been programmed DTC will be set in ABS and Air bag modules In addition if vehicle is equipped with a Sentry Key Immobilizer Module SKIM Secret Key data must be updated to enable start 7 For ABS and Air Bag systems Enter correct VIN and Mileage PCM Erase codes in ABS and Air Bag modules 8 For SKIM theft alarm Connect to data link conn Goto Theft Alarm SKIM Misc and place SKIM in secured access mode by using the appropriate PIN code for this vehicle Select Update the Secret Key data Data will be transferred from SKIM to PCM 9 Note Make sure that Misfire detection is enabled if you repaired a Misfire DTC Low fuel level or an un learned Adaptive Numerator can disable the Misfire monitor 10 Note If the PCM has been replaced or disconnected during testing the Adaptive Numerator must be re learned in order for the Misfire Monitor to run 11 With
295. isplay Was there any MAP Sensor voltage change Yes the Harness or Connector that caused the voltage change Perform Powertrain Test Verification VER 5A No Test Complete 65 Symptom 0108 SENSOR VOLTAGE TOO HIGH When Monitored and Set Condition 0108 SENSOR VOLTAGE TOO HIGH When Monitored With the engine RPM above 400 the TP sensor voltage less than 1 13 volt and battery voltage greater than 10 4 volts Set Condition The MAP sensor signal voltage is greater than 4 88 volts at start or with the engine running for 2 2 seconds POSSIBLE CAUSES MAP SENSOR GROUND CIRCUIT OPEN MAP SENSOR WIRING HARNESS INTERMITTENT MAP SENSOR WIRING HARNESS OBSERVABLE PROBLEM MAP SENSOR SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE MAP SENSOR SIGNAL CIRCUIT OPEN MAP SENSOR SIGNAL CIRCUIT SHORTED TO 5 VOLT SUPPLY CIRCUIT MAP SENSOR PCM MAP SENSOR VOLTAGE TOO HIGH ACTION APPLICABILITY Start the engine All With the DRB read the MAP Sensor voltage Is the MAP Sensor voltage above 4 6 volts Yes gt GoTo 2 No GoTo 8 Ignition Off Disconnect the MAP Sensor harness connector Note Check connectors Clean repair as necessary Connect a jumper wire between the Sensor Signal and Sensor Ground Circuits Turn ignition on engine off With the DRB read the MAP Sensor voltage Is the voltage below 1 0 volt Yes Replace th
296. istance of the TPS 5 Volt Supply Circuit between the TPS connector and ground 15 the resitance below 5 0 ohms Yes Repair the TPS 5 Volt Supply Circuit for a short to ground Perform Powertrain Verification Test VER 5A gt GoTo 12 Disconnect the Throttle Position Sensor harness connector Disconnect the PCM harness connector Using an ohmmeter measure the resistance of the TPS 5 Volt Supply Circuit between the TPS and the PCM harness conectors 15 the resistance below 5 0 ohms Yes gt GoTo 15 No Repair the open TPS 5 Volt Supply Circuit Perform Powertrain Verification Test VER 5A Turn the ignition on With the DRB read the Throttle Position Sensor voltage 15 the voltage above 1 0 volt Yes Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 gt GoTo 14 79 DRIVEABILITY 0121 5 VOLTAGE DOES NOT AGREE WITH MAP Continued APPLICABILITY Ignition On Engine Not Running With the read the TPS Volt Open the Throttle Plate to wide open throttle 15 the Throttle Position Sensor voltage above 3 5 volts Yes gt GoTo 15 No Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 If there no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Warning KEEP CL
297. it at PCM Momentarily connect the other end of the jumper wire to a good ground Did the Radiator Fan Relay actuate Yes gt GoTo 8 No Replace the Radiator Fan Perform the Powertrain Verification Test Ver 2 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 2 Turn the ignition off All Remove the Radiator Fan Relay Disconnect the PCM harness connector Measure the resistance between the Radiator Fan Relay Control circuit and ground Is the resistance below 5 0 ohms Yes Repair the Radiator Fan Relay Control Circuit for a short to ground Perform the Powertrain Verification Test Ver 2 GoTo 7 240 DRIVEABILITY Symptom P1490 LOW SPEED FAN CONTROL RELAY CIRCUIT When Monitored and Set Condition P1490 LOW SPEED FAN CONTROL RELAY CIRCUIT When Monitored With the ignition key on battery voltage greater than 10 0 volts and the PCM requests the radiator fan to be turned on Set Condition An open or shorted circuit is detected in the radiator fan relay control circuit POSSIBLE CAUSES RADIATOR FAN CTRL RLY CIRCUIT WIRE HARN INTERMITTENT PROBLEM RADIATOR FAN CTRL RLY CIRCUIT WIRE HARN OBSERVABLE PROBLEM FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN RADIATOR FAN RELAY CONTROL CIRCUIT OPEN RADIATOR FAN RELAY CONTROL CIRCUIT SHORT TO GROUND RADIATOR FAN CONTROL RELAY PCM ACTION
298. ition on with engine not running SPEED CONTROL With the DRB monitor the P N Switch inputs While observing the display move the Gear Selector to DRIVE Does the show P N switch Yes gt GoTo 30 No Refer tosymptom CHECKING PARK NETURAL SWITCH OP ERATION in the TRANSMISSION category Ignition On Engine Not Running SPEED CONTROL With DRB read the S C Switch volts in Sensors Is the S C Switch voltage below 1 0 volt Yes GoTo 31 No GoTo 38 Ignition on with engine not running SPEED CONTROL With the DRB III read DTC s Are any Vehicle Speed Signal codes set Yes Refer to symptom 500 VEHICLE SPEED SIGNAL the DRIVEABILITY category No GoTo 32 Turn ignition off SPEED CONTROL Disconnect the S C ON OFF Switch Note Check connectors Clean repair as necessary Turn ignition on with engine not running With the DRB read the S C Switch volts in Sensors Did the S C Switch volts change to 5 0 volts Yes Replace the S C ON OFF Switch Perform the Powertrain Verification Test Ver 4 No GoTo 33 Turn ignition off SPEED CONTROL Disconnect the S C RESUME ACCEL Switch Note Check connectors Clean repair as necessary Turn ignition on with engine not running With the DRB read the S C Switch volts in Sensors Did the S C Switch volts go above 4 0 volts Yes Replace the Resume Accel Switch Perform the Powertrain Verification Test Ver 4 No GoTo 34 Disconnect the clocksprin
299. l causes remaining replace the O2 sensor View repair options Repair Replace the O2S Perform Powertrain Verification Test VER 5A Turn the ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 5A Turn ignition off All Using a Voltmeter backprobe the O2S Signal ckt using one of the meter leads using the other meter lead backprobe the 025 Signal circuit at the PCM connector Ensure the voltmeter leads are connected for positive polarity Start engine Allow the engine to reach normal operating temperature No Test Complete 96 Symptom List 0135 1 1 02 SENSOR HEATER FAILURE 0141 1 2 02 SENSOR HEATER FAILURE 0155 2 1 O2 SENSOR HEATER FAILURE 0161 2 2 O2 SENSOR HEATER FAILURE Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be 0135 1 1 02 SENSOR HEATER FAILURE When Monitored and Set Condition
300. l harness side Disconnect the PCM Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the S C Switch Sensor Ground Circuit from the PCM to the clockspring connector Is the resistance below 5 0 ohms Yes gt GoTo 23 No Repair open ground circuit from PCM to clockspring Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the Speed Control On Off Switch 2 Way Connector only Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance across the S C On Off Switch then press and release the On Off button Did the resistance go from below 5 0 ohms when pressed to an open circuit when released Yes gt GoTo 24 No Replace the On Off Switch Perform the Powertrain Verification Test Ver 4 292 SPEED CONTROL CHECKING SPEED CONTROL OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Ignition on with engine not running SPEED CONTROL With the DRB III read Are any Vehicle Speed Signal codes set Yes Refer to symptom P0500 NO VEHICLE SPEED SIGNAL in the DRIVEABILITY category No GoTo 25 Turn ignition off SPEED CONTROL Disconnect the Speed Control On Off Switch 2 Way Connector only Note Check connectors Clean repair as necessary Turn ignition on Using a voltmeter measure the S C Switch Signal Circuit for voltage at the On Off Switch 2 Way
301. l release hose C 4799 1 flow fitting 6457 jumper wires ohmmeter oscilloscope vacuum gauge voltmeter 12 volt test light minimum 25 ohms resistance with probe 8382 CAUTION A 12 VOLT TEST LIGHT SHOULD NOT BE USED FOR THE FOLLOWING CIRCUITS DAMAGE TO THE POWERTRAIN CONTROLLER WILL OCCUR e 5 Volt Supply 8 Volt Supply e 1850 PCI Bus e CCD Bus e CKP Sensor Signal e CMP Sensor Signal e Vehicle Speed Sensor Signal e O2 Sensor Signal GENERAL INFORMATION 6 0 GLOSSARY OF TERMS ABS backfire popback CKP CMP cuts out misses DLC detona tion spark knock ECT EGR genera tor hard start hesita tion sag stumble IAT IAC TEC lack of power sluggish LDP MAP MIL MTV 025 poor fuel economy antilock brake system fuel ignites in either the intake or the exhaust system crank position sensor camshaft position sensor a steady pulsation or the inability of the engine to maintain a consistent rpm data link connector previously called engine diagnostic connector a mild to severe ping especially un der loaded engine conditions engine coolant temperature sensor exhaust gas recirculation valve and system previously called alternator The engine takes longer than usual to start even though it is able to crank normally There is a momentary lack of response when the throttle is opened This can
302. lace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform Powertrain Verification Test VER 5A At this time the conditions required to set the DTC are not present Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform a wiggle test of the Proportional Purge Solenoid wiring while the circuit is actuated with the DRB Listen for the solenoid to quit actuating Also watch for the Global Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 5A No Test Complete 192 Symptom 460 LEVEL UNIT NO CHANGE OVER MILES When Monitored and Set Condition PO460 FUEL LEVEL UNIT NO CHANGE OVER MILES When Monitored Engine running and fuel level either below 15 or above 85 of capacity Set Condition ThePCM sees low fuel less than 15 for morethan 120 miles or fuel level stays above 85 of capacity and does not change by at least 10 for
303. lay Note Check connectors Clean repair as necessary With a Voltmeter measure the Fused B at the Relay 15 the voltage above 11 0 volts Yes gt GoTo 7 No Repair the open Fused Circuit Perform the Powertrain Verification Test Ver 2 Turn engine off ignition on With the III actuate the A C clutch relay With a Voltmeter measure the A C Clutch Relay Output at the A C Clutch Does the voltage fluctuate between 0 0 and 11 0 volts Yes Replace the A C Clutch Coil Perform the Powertrain Verification Test Ver 2 No GoTo 8 there no possible causes remaining replace the A C Clutch Relay View repair options Repair Replace the A C Clutch Relay Perform the Powertrain Verification Test Ver 2 277 SPEED CONTROL Symptom List P1595 SPEED CONTROL SOLENOID CIRCUITS P1683 SPD CTRL PWR RELAY OR S C 12V DRIVER CKT Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be P1595 SPEED CONTROL SOLE NOID CIRCUITS When Monitored and Set Condition P1595 SPEED CONTROL SOLENOID CIRCUITS When Monitored With theignition key on the speed control switched on the SET switch pressed the vehicle drive gear moving above 35 MPH Set Condition The powertrain control module actuates the vacuum and vent solenoids but they do not respond P1683 SPD CTRL PWR RELAY OR S C 12V DRIVER CKT When Monitored With the ignition key on
304. leaner Clean the IAC motor passage also Use compressed air to dry the throttle body Reinstall the throttle body Note Miller Tool 6457 0 125 air metering orifice still attached to the purge nipple on the throttle body Start the engine Ensure that all accessories are off Allow the engine to reach operating temperature above 82 C 180 F With the DRB in System Tests perform the Minimum Air Flow function 15 the engine RPM between 550 1300 Yes Repair complete Perform the Powertrain Verification Test Ver 5 Replace the Throttle Body Perform the Powertrain Verification Test Ver 5 Caution Stop all actuations Turn engine off 217 DRIVEABILITY Symptom P1297 NO CHANGE IN MAP FROM START TO RUN ETE em When Monitored and Set Condition P1297 NO CHANGE IN MAP FROM START TO RUN When Monitored With engine RPM above 400 but less than 1500 and the throttle blade at closed throttle Set Condition small a difference is seen between barometric pressure at ignition on and manifold vacuum engine running for 1 72 seconds POSSIBLE CAUSES MAP SENSOR WIRING HARNESS INTERMITTENT MAP SENSOR WIRING HARNESS INTERMITTENT PROBLEM MAP SENSOR WIRING HARNESS OBSERVABLE PROBLEM VACUUM PORTS RESTRICTED MAP SENSOR 5 VOLT SUPPLY CIRCUIT OPEN MAP SENSOR 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND MAP SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT MAP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
305. link on and off Yes Replace the S C Servo Perform the Powertrain Verification Test Ver 4 gt GoTo 18 If there are no possible causes remaining replace the PCM SPEED CONTROL View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 4 Turn ignition off All Using Service Procedure check Brake Switch adjustment Was Brake Switch adjustment OK Yes gt GoTo 20 No Adjust Brake Switch Perform the Powertrain Verification Test Ver 4 282 SPEED CONTROL P1595 SPEED CONTROL SOLENOID CIRCUITS Continued ACTION APPLICABILITY Turn ignition off Disconnect the Brake Switch Connector Note Check connectors Clean repair as necessary Be sure the brake pedal is not depressed during the next step Using an ohmmeter measure the resistance between the S C power supply circuit and the S C brake switch output circuit measurement taken across switch Is the resistance below 5 0 ohms Yes gt GoTo 21 No Replace the Brake Switch Perform the Powertrain Verification Test Ver 4 Turn ignition off All Disconnect the Brake Switch connector Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance between the S C Power Supply Circuit and ground at the Brake Switch connector 15 the resistance below 5 0 ohms Yes Repair S C Power Supply Circuit shorted to ground Perfo
306. located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Using a test light connected to B check the fuel pump ground circuit Z1 at connector C308 Does the test light illuminate brightly Yes gt GoTo 8 No Repair the high resistance the fuel pump ground circuit Perform Powertrain Verification Test VER 1 Note Re connect connector C308 before performing the next test Visually inspect the fuel supply line from the fuel tank to the fuel rail Look for signs of physical damage that may restrict the supply line Were any problems found with the fuel supply line Yes Repair replace fuel supply line as necessary No gt GoTo 9 The following additional items should be checked as a possible cause for a start and stall condition Refer to any Technical Service Bulletins TSB s that may apply to the symptom Fuel must be free of contamination The exhaust system must be free of any restrictions The engine compression must be within specifications The engine valve timing must be within specifications Do any of the above conditions exist Yes gt Repair as necessary GoTo 10 313 STARTING START AND STALL CONDITION Continued ACTION APPLICABILITY Warning The fuel system is under a constant pressure ev
307. m the Powertrain Verification Test Ver 5 Ignition Off Disconnect Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance between AC Driver 3 and ground Is the resistance below 5 0 ohms Yes Repair the AC 3 Driver Circuit shorted to ground Perform the Powertrain Verification Test Ver 5 No gt GoTo 14 Ignition Off Disconnect the Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the IAC 8 Driver Circuit from the IAC Motor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 15 No Repair the open IAC Driver Circuit Perform the Powertrain Verification Test Ver 5 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Ignition Off Disconnect IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance between IAC 2 Driver circuit and ground B 15 the resistance below 5 0 ohms Yes Repair thelAC 2 Driver Circuit shorted to ground Perform the Powertrain Verification Test
308. me the engine is running and the adaptive numerator has been successfully updated Set Condition When more than a 2 misfire rate is measured during two trips or with a 10 to 30 misfire rate during one trip P0306 CYLINDER 6 MISFIRE When Monitored Any time the engine is running and the adaptive numerator has been successfully updated Set Condition When more than a 2 misfire rate is measured during two trips or with a 10 to 30 misfire rate during one trip POSSIBLE CAUSES ENGINE MECHANICAL PROBLEM ERRATIC CAM CRANK SENSOR SIGNALS MIS FIRE CONDITIONS NO LONGER EXIST OTHER POSSIBLE CAUSES FOR MIS FIRE SECONDARY IGNITION OR MECHANICAL PROBLEM ACTION APPLICABILITY With the DRB read the DTC s All Is the MIS FIRE GOOD TRIP counter displayed and equal to zero Yes gt GoTo 2 GoTo 3 At this time the conditions that set the Misfire DTC are present With the DRB read and record the FREEZE FRAME DATA and SIMILAR CONDI TIONS WINDOW DATA With these screens attempt to duplicate the condition s that has set this DTC When the vehideis operating the SIMILAR CONDITIONS WINDOW refer tothe WHICH CYLINDER 15 MISFIRING screen 15 the DRB counting mis fires at this time Yes gt GoTo 4 No gt GoTo 3 131 DRIVEABILITY CYLINDER MIS FIRE Continued ACTION APPLICABILITY At this time the mis fire does not exist or is an intermittent problem Note An intermittent pr
309. mmeter measure the resistance of the LDP Switch Sense circuit from the LDP connector to the PCM connector Is the resistance below 5 0 Ohms Yes gt GoTo 5 No Repair the open LDP Switch Sense Circuit Perform Powertrain Verification Test VER 5 Turn ignition off Disconnect the Leak Detection Pump electrical connector Disconnect the Powertrain Control Module connectors Using Ohmmeter measure the resistance between the LDP Switch Sense circuit and ground 15 the resistance below 5 0 Ohms Yes Repair the LDP Switch Sense Circuit for a short to ground Perform Powertrain Verification Test VER 5 No gt GoTo 6 If there no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform Powertrain Verification Test VER 5 At this time the conditions required to set the DTC are not present Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB s that may apply Perform a wiggle test of the LDP wiring while the is actuated with
310. n With the DRB actuate fuel injector no 2 Using 12 volt test light connected to ground check the ASD relay output circuit at the injector connector Does the test light illuminate brightly Yes gt GoTo 3 the open high resistance the ASD relay output circuit Note Check fuse in the PDC Perform the Powertrain Verification Test Ver 5 Stop All Actuations 115 DRIVEABILITY P0202 INJ ECTOR 2 CONTROL CIRCUIT Continued ACTION APPLICABILITY Turn ignition off All Disconnect the fuel injector no 2 electrical connector Note The next test step requires the use of an analog voltmeter Note Pay careful attention to the voltmeter needle in order to have valid test results Connect the positive lead of the voltmeter to a known good 12 volt source B Connect the negative lead of the voltmeter to the fuel injector no 2 driver circuit at the fuel injector no 2 electrical connector Turn ignition on With the DRB actuate fuel injector no 2 and observe the voltmeter needle Does the needle fluctuate Yes gt GoTo 4 No GoTo 5 Stop All Actuations If there no possible causes remaining replace the fuel injector View repair options Repair Replace the fuel injector Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 2 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measu
311. n Do not operate the fuel pump for more than 7 seconds in the next step Fuel pump module reservoir may run empty and damage to the fuel pump will result Note Specification A good fuel pump will deliver at least 1 4 liter 1 2 pint of fuel in 7 seconds With the DRB actuate the ASD Fuel System test for 7 seconds 15 the fuel pump capacity within specification Yes gt GoTo 17 Check for a kinked damaged fuel supply line between the fuel tank and fuel rail If OK replace the fuel pump module Caution Stop All Actuations The following additional items should be checked as a possible cause for a start and stall condition Refer to any Technical Service Bulletins TSB s that may apply to the symptom Fuel must be free of contamination The exhaust system must be free of any restrictions The engine compression must be within specifications The engine valve timing must be within specifications Do any of the above conditions exist Yes gt Repair as necessary No Test Complete 315 TRANSMISSION Symptom P1899 P N SWITCH STUCK IN PARK OR IN GEAR When Monitored and Set Condition P1899 P N SWITCH STUCK IN PARK OR IN GEAR When Monitored Continuously with the transmission in Park Neutral or Drive and NOT in Limp in mode Set Condition This code will set if the PCM detects an incorrect Park Neutral switch state for a given mode of vehicle operation POSSIBLE CAUSES INTERMITTENT PARK NEU
312. n Test VER 1A No Test Complete With the DRB perform the SRI Memory Test Does the display SRI Mileage Invalid Yes Update the mileage and retest the SRI Memory Perform Powertrain Verification Test VER 1A No gt GoTo 5 With the DRB perform the SRI Memory Test a second time Note Retest the SRI Memory two more times 42 COMMUNICATION P1697 PCM FAILURE SRI MILE NOT STORED Continued APPLICABILITY Compare the SRI Mileage stored with the Instrument Panel Odometer All 15 the mileage within the specified range displayed the DRB Yes Test Complete No Update the mileage and retest the SRI Memory Perform Powertrain Verification Test VER 1A 43 COMMUNICATION Symptom P1698 NO BUS MESSAGE FROM TRANS CONTROL MODULE When Monitored and Set Condition P1698 NO BUS MESSAGE FROM TRANS CONTROL MODULE When Monitored Equipped with automatic transmission the ignition key on engine running transmission in drive vehicle road speed and battery voltage greater than 10 volts Set Condition bus messages from the TCM for 10 seconds two trips required POSSIBLE CAUSES FUSED B CIRCUIT LESS THAN 10 0 VOLTS FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN PCM GROUND CIRCUIT S OPEN PCM INTERNAL PCI BUS OPEN PCM PCI BUS CIRCUIT OPEN WIRING HARNESS INTERMITTENT DEFECT APPLICABILITY Turn ignition on Engine not running All With the DRB read PCM trou
313. n key on and battery voltage above 10 4 volts Set Condition An open or shorted condition is detected the ASD relay control circuit POSSIBLE CAUSES WIRING HARNESS INTERMITTENT PROBLEM FUSED B CIRCUIT OPEN ASD RELAY CONTROL CIRCUIT OPEN ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND ASD RELAY PCM ACTION APPLICABILITY With the DRB actuate the Auto Shutdown Relay All 15 the Auto Shutdown Relay Clicking No GoTo 2 Yes gt GoTo 7 Turn ignition off Remove the ASD relay from the PDC Disconnect the Powertrain Control Module Using ohmmeter measure the resistance of the ASD relay control circuit from the ASD relay connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 3 No Repair the open ASD relay control circuit Perform the Powertrain Verification Test Ver 2 Turn ignition off Remove the ASD relay from the PDC Using a voltmeter measure both Fused circuits at the ASD Relay connector 15 the voltage above 10 0 volts for both B Circuits Yes gt GoTo 4 No Repair the open fused B circuit Note Check fuse the PDC Perform the Powertrain Verification Test Ver 2 225 DRIVEABILITY P1388 AUTO SHUTDOWN RELAY CONTROL CIRCUIT Continued ACTION APPLICABILITY Turn ignition off Remove the ASD relay from the PDC Disconnect the Powertrain Control Module Using an ohmmeter measure the ASD relay control circuit to ground Is the resistance below
314. n met switch screen to the appropriate monitor Audible beeps when the monitor is running 15 If the monitor ran and the Good Trip counter changed to one or more the repair was successful and is now complete Erase DTC s and disconnect the 16 If the repaired trouble code has reset or was seen in the monitor while on the road test the repair is not complete Check for any related technical service bulletins or flash updates and return to Symptom List 17 If another DTC has set return to the Symptom List and follow the path specified for that DTC Repair is not complete refer to appropriate symptom 332 APPLICABILITY All VERIFICATION TESTS Verification Tests Continued POWERTRAIN VERIFICATION TEST VER 6 APPLICABILITY 1 Inspect the vehicle to ensure that all engine components are properly installed and All connected Reassemble and reconnect components as necessary 2 If the PCM was replaced perform steps 3 through 5 then continue with the verification Otherwise skip those steps and continue 3 If PCM has been changed and correct VIN and mileage have not been programmed a DTC will be set in ABS and Air bag modules In addition if vehicle is equipped with a Sentry Key Immobilizer Module SKIM Secret Key data must be updated to enable start 4 For ABS and Airbag Systems Enter correct VIN and Mileage in PCM Erase codes in ABS and Airbag modules 5 For SKIM theft alarm Con
315. n off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 1A No Test Complete 46 COMMUNICATION Symptom BUS SIGNAL OPEN FROM SKIM POSSIBLE CAUSES SKIM RESPONSE FAILURE BUS OPEN CIRCUIT TO SKIM SKIM FUSED OPEN SKIM FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN SKIM GROUND CIRCUIT OPEN ACTION APPLICABILITY Turn ignition on Using the DRB attempt to communicate with SKIM Did you communicate with the SKIM No GoTo 2 Yes Test Complete Disconnect the SKIM connector Using a voltmeter measure the Fused B voltage at the SKIM connector Is the Fused B above 10 0 volts Yes gt GoTo 3 Repair the open Fused circuit to the SKIM Perform the SKIS Verification Test Perform the SKIS Verification Test Disconnect the SKIM connector Using ohmmmeter measure the resistance between the SKIM ground circuit at the SKIM connector and ground Is the resistance below 5 0 ohms Yes gt GoTo 5 No Repair the open Sentry Key Immobilizer Module ground circuit Perform the SKIS Verification Test
316. n plug Is the resistance between 0 6 and 0 9 ohms Yes gt GoTo 3 No Replace the coil on plug no 1 Perform the Powertrain Verification Test Ver 5 150 P0351 IGNITION COIL 1 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Turn ignition off Disconnect the on plug 1 connector Turn ignition on With the DRB actuate the generator field Using a 12 volt test light connected to ground check the ASD relay output circuit at the coil on plug no 1 electrical connector Does the test light illuminate brightly Yes gt GoTo 4 No Repair the open high resistance in the ASD relay output circuit Perform the Powertrain Verification Test Ver 5 Stop All Actuations Turn ignition off Note The following test is done at the coil on plug no 1 connector with the coil on plug connected Back probe the coil driver no 1 circuit with Miller tool 6801 and a test light connected to Warning Keep clear of the engine s moving parts Start the engine and observe the test light Does the test light blink flicker Yes gt Test Complete gt GoTo 5 Caution Turn the Engine Off Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the coil driver no 1 circuit from the coil on plug no 1 connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open coil driver
317. n specifications POWER BRAKE BOOSTER no internal vacuum leaks FUEL must be free of contamination FUEL INJECTOR plugged or restricted injector control wire not connected to correct injector Are there any engine mechanical problems Yes Repair as necessary Perform the FUEL MISFIRE VERIFICATION TEST No GoTo 18 Turn ignition off Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Disconnect the fuel supply line at the fuel rail Connect fuel line adapter 6539 5 16 or 6631 3 8 to the disconnected fuel supply line Insert the other end of the adapter into a graduated container Caution Do not operate the fuel pump for more than 7 seconds in the next step Fuel pump module reservoir may run empty and damage to the fuel pump will result Note Specification A good fuel pump will deliver at least 1 4 liter 1 2 pint of fuel in 7 seconds With the DRB actuate the ASD Fuel System test for 7 seconds 15 the fuel pump capacity within specification Yes gt Test Complete No Check for a kinked damaged fuel supply line between the fuel tank and fuel rail If OK replace the fuel pump module Caution Stop All Actuations The conditions required to set the DTC are no longer present With the read and record the Freeze Frame data and the Fuel System Similar
318. n until operating temp and closed loop mode is reached With the DRB under System Tests go to Purge Vapors Test Observe the Short Term Adaptive value and press 3 to flow Note Short Term Adaptive should change Did the Short Term Adaptive value change Yes gt GoTo 3 No Refer to symptom CHECKING EVAPORATIVE EMISSION SYSTEM in the DRIVEABILITY category Ignition On Engine Not Running All With the DRBIII read the TPS voltage While monitoring the DRBIII slowly open and close the Throttle 15 the voltage change smooth Yes gt GoTo 4 No Replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Turn ignition off Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Note 2 7L engines require the use of Miller Tool 6539 adapter installed in line to the fuel supply line Disconnect the fuel supply line at the fuel rail connection install tool 6539 then connect a fuel pressure gauge to tool 6539 Note 3 2L 3 5L engines have a pressure test port the fuel rail Remove the pressure test port cap at the fuel rail test port Connect a fuel pressure gauge to the test port pressure fitting on the fuel rail Ignition on With the DRB actuate the ASD Fuel System test and observe the fuel pressure gauge Note Fuel pressure specification is 406 KPa
319. ncy Measured 0 10kHz Frequency Generated Temperature 58 1100 F 50 600 C Ohms cannot be measured if voltage is present Ohms can be measured only in a non powered circuit Voltage between any terminal and ground must not exceed 500v DC or 500v peak AC e Use caution when measuring voltage above 25v DC 25 circuit being tested must be protected 10A fuse or circuit breaker e Usethe low current shunt to measure circuits up to 10A Use the high current clamp to measure circuits exceeding 10A e When testing for the presence of voltage or cur rent make sure the meter is functioning cor rectly Take a reading of a known voltage or current before accepting a zero reading e When measuring current connect the meter in series with the load e Disconnect the live test lead before disconnecting the common test lead e When using the meter function keep the away from spark plug or coil wires to avoid measuring error from outside interference 4 3 WARNINGS AND CAUTIONS 4 3 1 ROAD TEST WARNINGS Some complaints will require a test drive as part of the repair verification procedure The purpose of the test drive is to try to duplicate the diagnostic code or symptom condition CAUTION BEFORE ROAD TESTING A VEHICLE BE SURE THAT ALL COMPONENTS ARE REASSEMBLED DURING THE TEST DRIVE DO NOT TRY TO READ THE DRB SCREEN WHILE IN MOTION DO NOT HANG THE DRB FROM THE REAR VIEW M
320. nd Circuit at the Servo Connector to ground Is the resistance below 5 0 ohms Yes gt GoTo 15 No Repair open Ground Circuit at S C Servo Connector Perform the Powertrain Verification Test Ver 4 281 SPEED CONTROL P1595 SPEED CONTROL SOLENOID CIRCUITS Continued APPLICABILITY Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo Connector Disconnect Powertrain Control Module Connectors Note Check connectors Clean repair as necessary With Ohmmeter measure the resistance of the S C Vent Solenoid Control Circuit from the PCM to the Servo Connector 15 the resistance below 5 0 ohms Yes gt GoTo 16 No Repair the open S C Vent Solenoid Control Circuit Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the S C Servo Connector Disconnect Powertrain Control Module Connectors Note Check connectors Clean repair as necessary With an Ohmmeter measure the resistance of the S C Vent Solenoid Control Circuit from the Servo Connector to a good Ground 15 the resistance below 5 0 ohms Yes gt Repair the short to ground in the S C Vent Solenoid Control Circuit Perform the Powertrain Verification Test Ver 4 GoTo 17 Turn ignition off SPEED CONTROL Disconnect the S C Servo Using the DRB actuate the S C Vent solenoid Using a 12 Volt Test Light connected to probe the S C Vent Solenoid Control Circuit Does the test light b
321. nd at the BCM 15 the resistance below 500K 500 000 ohms No gt GoTo 8 Yes gt Repair the Sensor Ground circuit for a partial short to ground Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Ambient Temperature Sensor connector Disconnect the BCM connector Using an Ohmmeter measure the Ambient Temperature Sensor Signal circuit to ground Is the resistance below 50K 50 000 ohms Yes Repair the Ambient Temperature Sensor signal circuit for partial short to ground Perform the Powertrain Verification Test Ver 5 GoTo 9 Turn ignition off Disconnect the Ambient Temperature Sensor connector Disconnect the BCM connector Using an Ohmmeter measure the resistance between the Ambient Temperature Sensor Signal circuit and the Sensor Ground circuit Is the resistance below 50K 50 000 ohms Yes Repair the Ambient Temperature Sensor Signal Circuit for short to the Sensor Ground Circuit Perform the Powertrain Verification Test Ver 5 GoTo 10 If there are no possible causes remaining replace the BCM View repair options Repair Replace the BCM Perform the Powertrain Verification Test Ver 5 Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer
322. nd during Key Programming Mode Set Condition This condition exists when an invalid message format is received from the transponder after 5 consecutive transponder read attempts TRANSPONDER ID MISMATCH When Monitored At ignition ON and during Key Programming Mode Set Condition This condition exists when the transponder ID read by the SKIM does not match of those transponder D s stored in the SKIM s memory TRANSPONDER RESPONSE MISMATCH When Monitored At ignition ON and during Key Programming Mode Set Condition This condition exists when the transponder s secret algorithm result fails to match the SKIM s result POSSIBLE CAUSES INTERMITTENT WIRING HARNESS PROBLEM SKIM 323 VEHICLE THEFT SECURITY TRANSPONDER CYCLIC REDUNDANCY CHECK CRC FAILURE Continued ACTION APPLICABILITY Using the DRB erase the codes Turn ignition off Wait 10 seconds Turn ignition on Using the DRB read the codes Does the DRB display the code that was previously erased Yes gt GoTo 2 No gt GoTo 5 Using the DRB attempt to reprogram the ignition keys to SKIM Using the DRB erase the codes Wait 10 seconds Turn the ignition on Using the DRB read the trouble codes Does the code reset Yes gt GoTo 3 Test Complete If there are no possible causes remaining replace the SKIM View repair options Repair Replace the Sentry Key Immobilizer Module Perform the SKIS Verification
323. nd there new DTC s the repair was successful and testing is complete Repair is not complete refer to appropriate symptom POWERTRAIN VERIFICATION TEST VER 3 1 Inspect the vehicle to ensure that all engine components are properly installed and connected Reassemble and reconnect components as necessary 2 Connect the DRB to the Data Link Connector and erase the codes 3 the PCM has been replaced perform steps 4 through 6 then continue the verification 4 PCM has been changed and correct VIN and mileage have not been programmed DTC will be set in ABS and Air bag modules In addition if vehicle is equipped with a Sentry Key Immobilizer Module SKIM Secret Key data must be updated to enable start 5 For ABS and Air Bag systems Enter correct VIN and Mileage PCM Erase codes in ABS and Air Bag modules 6 For SKIM theft alarm Connect to data link conn Go to Theft Alarm SKIM Misc and place SKIM in secured access mode by using the appropriate PIN code for this vehicle Select Update the Secret Key data Data will be transferred from SKIM to PCM 7 Ensure no other charging system problems remain by doing the following Start the engine Perform generator output per service manual 8 Raise the engine speed to 2000 rpm for at least 30 seconds 9 Allow the engine to idle 10 Turn the engine off 11 Turn the ignition key on 12 With the DRB read trouble code messages 13 If repaired code
324. nect to data link conn Go to Theft Alarm SKIM Misc and place SKIM in secured access mode by using the appropriate PIN code for this vehicle Select Update the Secret Key data Data will be transferred from SKIM to PCM 6 If any existing diagnostic trouble codes not repaired go to symptom list and follow path specified After all diagnostic trouble codes have been repaired return to TEST VER 6A and run LDP Dealer Test Mode under Systems Test DRBIII 7 The LDP Monitor Test Mode has been added to the to verify repairs to the LDP System A DRB software program was written which causes the PCM torun the LDP Monitor as part of this test Test failures will be indicated through a stored DTC 8 LDP Monitor Test Modeis a useful way to run total system performance test Use this test to verify any type of LDP system repair 9 Software program makes temporary changes to operating mode of PCM For this reason it is critical that test not be interrupted 5 left in this mode as result of interrupted test will illuminate the MIL for 8 10 mi of driving with no stored 10 Erasing DTC s will not change this condition 11 If a vehicle is found to be stuck in the mode described above the LDP Dealer Test should be rerun in its entirety so that the software program in the can restore the PCM operating mode 12 Note similarity to LDP Monitor screen found under OBDII Monitors Failure modes are fewer
325. nector Measure the resistance of the EGR solenoid control circuit between the PCM connector and the EGR solenoid connector 15 the resistance below 5 0 ohms Yes gt GoTo 6 No the open in the EGR solenoid control circuit Perform the Powertrain Verification Test Ver 2 173 DRIVEABILITY P0403 EGR SOLENOID CIRCUIT Continued APPLICABILITY Turn ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 174 Symptom P0404 EGR POSITION SENSOR RATIONALITY nT When Monitored and Set Condition P0404 EGR POSITION SENSOR RATIONALITY When Monitored Set Condition The EGR flow or valve movement is not what is expected POSSIBLE CAUSES WIRING HARNESS INTERMITTENT HIGH RESISTANCE SENSOR GND CKT HIGH RESISTANCE EGR SENSOR SIGNAL CKT EGR SENSOR PCM ACTION APPLICABILITY Note If any other EGR trouble code are set diagnose them first before All proceeding with P0404 Turn the ignition on With the DRB read Is the Global Good Trip displayed and
326. needed to diagnose the PCM Powertrain System The diag nostics in this manual are based on the failure condition or symptom being present at time of diagnosis Please follow the recommendations below when choosing your diagnostic path 1 First make sure the DRBIII is communicating with the appropriate modules ie if the DRBII displays a No Response condition you must diagnose this first before proceeding 2 Read DTC s diagnostic trouble codes with the DRBIII 3 If no DTC s are present identify the customer complaint 4 Once the DTC or customer complaint is identi fied locate the matching test in the Table of Contents and begin to diagnose the symptom All component location views are in Section 8 0 All connector pinouts are in Section 9 0 All system schematics are in Section 10 0 An placed before the symptom description indi cates a customer complaint When repairs are required refer to the appropri ate service manual for the proper removal and repair procedure Diagnostic procedures change every year New diagnostic systems may be added carryover sys tems may be enhanced READ THIS MANUAL BEFORE TRYING TO DIAGNOSE A VEHICLE CODE It is recommended that you review the entire manual to become familiar with all new and changed diagnostic procedures After using this book if you have any comments or recommendations please fill out the form at the back of the book and mail it back to us 1
327. ng any fuel system hose fitting or line the fuel system pressure must be released Note 2 7L engines require the use of Miller Tool 6539 adapter installed in line to the fuel supply line Disconnect the fuel supply line at the fuel rail connection install tool 6539 then connect a fuel pressure gauge to tool 6539 Note 3 2L 3 5L engines have a pressure test port on the fuel rail Remove the pressure test port cap at the fuel rail test port Connect a fuel pressure gauge to the test port pressure fitting on the fuel rail Ignition on With the DRB actuate the ASD Fuel System test and observe the fuel pressure gauge Note Fuel pressure specification is 406 KPa 34 KPa 59 psi 5 psi Choose a conclusion that best matches your fuel pressure reading Below Specification GoTo 12 Within Specification GoTo 17 Above Specification Replace the fuel filter pressure regulator Caution Stop All Actuations 300 STARTING ENGINE CRANKS DOES NOT START Continued ACTION APPLICABILITY Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Turn ignition on With the DRB actuate the ASD Fuel System test Using a 12 volt test light connected to ground check the fuel pump relay output ci
328. ng these proce dures is very important to the safety of individuals performing diagnostic tests 4 2 2 VEHICLE PREPARATION FOR TESTING Make sure the vehicle being tested has a fully charged battery If it does not false diagnostic codes or error messages may occur 4 2 3 SERVICING SUB ASSEMBLIES Some components of the powertrain system are intended to be serviced in assembly only Attempt ing to remove or repair certain system sub components may result in personal injury and or improper system operation Only those components with approved repair and installation procedures in the service manual should be serviced 4 2 4 DRBIII SAFETY INFORMATION WARNING EXCEEDING THE LIMITS OF THE DRB MULTIMETER IS DANGEROUS IT CAN EXPOSE YOU SERIOUS INJURY CAREFULLY READ AND UNDERSTAND THE CAUTIONS AND THE SPECIFICATION LIMITS Follow the vehicle manufacturer s service specifi cations at all times Do not use the DRBIII if it has been damaged e Do not use the test leads if the insulation is damaged or if metal is exposed To avoid electrical shock do not touch the test leads tips or the circuit being tested e Choose the proper range and function for the measurement Do not try voltage or current mea surements that may exceed the rated capacity Donot exceed the limits shown in the table below FUNCTION INPUT LIMIT Volts 0 500 peak volts AC 0 500 volts DC Ohms resistance 0 1 12 megohms Freque
329. ngine gt GoTo 2 Yes gt GoTo 20 144 40 SIGNAL PCM Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Camshaft Position Sensor connector Turn ignition on Using a voltmeter measure the 8 volt supply circuit at the Camshaft Position Sensor connector Select a conclusion that best matches your voltage measurement Less than 7 5 volts GoTo 3 Between 7 5 and 8 5 volts GoTo 10 Greater than 8 5 volts Repair the 8 volt supply circuit for a short to voltage Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Camshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using ohmmeter measure the resistance of the 8 volt supply circuit from the CMP sensor connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 4 No Repair the open 8 volt supply circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Camshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between the 8 Volt Supply circuit and ground Is the resistance below 5 0 ohms Yes Repair the 8 volt supply circuit shorted to ground Perform the Powertrain Verification
330. ning All With the DRB read TP Sensor voltage Throttle must be against stop Is the voltage 0 92 or less with the Throttle closed Yes Test Complete Check for a binding throttle condition If OK replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 269 amp Symptom P0645 A C CLUTCH RELAY CKT When Monitored and Set Condition 645 CLUTCH RELAY When Monitored With the ignition key in the run position and battery voltage above 10 volts Set Condition An open or shorted condition is detected in the A C clutch relay control circuit POSSIBLE CAUSES A C CLUTCH RLY CIRCUIT WIRING HARNESS OBSERVABLE PROBLEM A C CLUTCH RLY CIRCUIT WIRING HARNESS INTERMITTENT PROBLEM FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN A C CLUTCH RELAY CONTROL CIRCUIT OPEN A C CLUTCH RELAY CONTROL CIRCUIT SHORT TO GROUND A C CLUTCH RELAY PCM A C CLUTCH RELAY APPLICABILITY Ignition On Engine Not Running All With the DRB actuate the A C Clutch Relay Is the A C Clutch Relay clicking Yes gt GoTo 2 gt GoTo 4 Turn ignition off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes gt Repair as necessary Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Ignition On Engine Not Running With the DRB actuate the A C Clutch Relay Wiggle the Wiring Harness from the Rel
331. nition off Disconnect and remove the Sensor Using a temp probe measure the air temperature inside the Sensor opening 15 the recorded temperature value within 10 of the temperature probe reading Yes gt GoTo 2 No Check the IAT wiring for a high resistance condition If OK replace the sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 266 Symptom CHECKING THE PCM POWER AND GROUNDS POSSIBLE CAUSES FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN PCM GROUND CIRCUIT S OPEN FUSED B CIRCUIT LESS THAN 10 0 VOLTS ACTION APPLICABILITY Turn the Ignition Off All Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Usea 12 volt test light in the following step Connect the test light to Ground Probe the Circuit in the PC
332. nitor the actual coolant temperature with a thermometer Note As the engine warms up to operating temperature the actual coolant temperature thermometer reading and the Coolant Tmp Deg values should stay relatively close to each other Using the appropriate service information determine the proper opening tempera ture of the thermostat Did the thermostat open at the proper temperature Yes gt GoTo 3 Replace the thermostat Perform verification test Ver 2A Was the Eng Coolant Tmp Deg value increase a smooth transition and did it reach at least 180 Yes gt Test Complete No Check the ECT wiring for a high resistance condition voltage drop If OK replace the Engine Coolant Temperature Sensor Perform the Powertrain Verification Test Ver 5 88 DRIVEABILITY Symptom List 0131 1 1 02 SENSOR SHORTED TO GROUND 0137 1 2 O2 SENSOR SHORTED TO GROUND 0151 2 1 O2 SENSOR SHORTED TO GROUND 0157 2 2 O2 SENSOR SHORTED TO GROUND Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be 0131 1 1 02 SENSOR SHORTED TO GROUND eee rar When Monitored and Set Condition 0131 1 1 O2 SENSOR SHORTED TO GROUND When Monitored At a cold start engine coolant below 98 F ambient battery sensor reading within 27 F and engine coolant temperature above 170 F on the previous key off Set Condition oxygen sensor signal vol
333. nnect the Power Steering Pressure Switch Connector Disconnect the Powertrain Control Module connector With an Ohmmeter measure the Power Steering Pressure Switch Sense Circuit to ground at the PCM connector 15 the resistance below 5 0 ohms Yes Repair the Power Steering Pressure Switch Sense Circuit for a short to ground Perform the Powertrain Verification Test Ver 5 GoTo 5 Turn Ignition Off Disconnect the Power Steering Pressure Switch Connector Disconnect the Powertrain Control Module connector Using an Ohmmeter measure resistance of Power Steering Pressure Switch Sense circuit from PCM connector to Sensor Connector 15 the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open Power Steering Switch Sense Circuit Perform the Powertrain Verification Test Ver 5 If there are possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verifica
334. nnector 15 the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open A C Pressure Sensor Signal Circuit Perform the Powertrain Verification Test Ver 2 If there are no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 2 The conditions necessary to set this DTC are not present at this timeUsing the schematics as a guide inspect the wiring and connectors specific to this circuit Wiggle the wires while checking for shorts and open circuits Were any problems found Yes Repair defective wiring and or connector as necessary Perform the Powertrain Verification Test Ver 2 No Test Complete 273 amp Symptom P1599 A C PRESSURE SENSOR VOLTS TOO LOW When Monitored and Set Condition P1599 A C PRESSURE SENSOR VOLTS TOO LOW When Monitored With the ignition the engine running the A C relay energized Set Condition TheA C pressure sensor signal voltage at the PCM goes below 0 5 volts is below 0 7 volts for 22 seconds when the A C relay is energized POSSIBLE CAUSES INTERMITTENT WIRING amp CONNECTORS CONDITIONS A C PRESSURE SENSOR 5 VOLT SUPPLY CIRCUIT OPEN A C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND A C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT A C PRESSURE SENSOR VOLTAGE gt 1 0 VOLT POWERTRAIN CONTROL MODULE
335. nt greater than 170 F open throttle steady to slightly increasing vehicle speed greater than 18 mph but less than 55 mph with a light load on the engine for a period no less than 5 minutes Set Condition The oxygen sensor signal voltage is switching from below 0 39 volt to above 0 6 volts and back fewer times than required POSSIBLE CAUSES EXHAUST LEAK EXCESSIVE ENGINE BLOWBY 025 SENSOR GROUND CIRCUIT VOLTAGE DROP 025 SIGNAL CIRCUIT VOLTAGE DROP WIRING HARNESS INTERMITTENT 025 ACTION APPLICABILITY Turn Ignition On All With the DRB read the DTC s Is the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 No gt GoTo 7 208 1195 1 1 02 SENSOR SLOW DURING CATALYST MONITOR Continued APPLICABILITY Start engine Allow engine to idle Check for any exhaust leaks between the Engine and the appropriate O2S Are there any exhaust leaks Yes Repair or replace leaking exhaust parts as necessary Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Start engine Allow the engine to reach normal operating temperature Check the exhaust for excessive smoke from internal oil or coolant leaks 15 there an or coolant consumption condition present Yes Repair engine for excessive blowby oil or coolant as necessary Perform the Powertrain Verification Test Ver 2 gt GoTo 4 Turn ignition off Usinga Voltmeter backpro
336. o 3 Repair the high resistance the fuel pump relay ouput circuit Check wire from PDC to fuel pump module connector Also check for bad relay Perform Powertrain Verification Test VER 1A Caution Stop All Actuations Turn ignition off All Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Using a test light connected to B check the fuel pump ground circuit Z1 at connector C308 Does the test light illuminate brightly Yes gt GoTo 4 No Repair the high resistance in the fuel pump ground circuit Perform Powertrain Verification Test VER 1 Note Re connect connector C308 before performing the next test Visually inspect the fuel supply line from the fuel tank to the fuel rail Look for any signs of physical damage that may restrict the supply line Were any problems found with the fuel supply line Yes Repair replace fuel supply line as necessary No GoTo 5 Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer Is the Fuel Inlet Strainer plugged Yes Replace the Fuel Pump Inlet Strainer
337. o 8 No Repair the open TP Sensor Signal Circuit Perform Powertrain Verification Test VER 5 Turn the ignition off All Disconnect the Throttle Position Sensor harness connector Note Check connectors Clean repair as necessary Turn the ignition on Using the DRB read the Throttle Position Sensor voltage Connect a jumper wire between the TP Sensor Signal circuit and Sensor Ground circuit 15 the voltage below 1 0 volt Yes Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 No GoTo 6 85 DRIVEABILITY P0123 THROTTLE POSITION SENSOR VOLTAGE HIGH Continued APPLICABILITY If there no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Engine Running Warning KEEP CLEAR OF THE ENGINE S MOVING PARTS Wiggle the Throttle Position Sensor Connectors and Harness Monitor engine RPM Was there any change engine RPM when wiggled Yes Repair the Harness or Connector that caused the engine RPM to change Perform Powertrain Verification Test VER 5 GoTo 10 Ignition On Engine Not Running With the DRB read TP Sensor voltage Wiggle the Throttle Position Sensor Connectors and Harness Monitor the DRB display Was there any change in Throttle Position Sensor voltage when wiggled Yes Repair the Harness or Connector that caus
338. o the test port pressure fitting on the fuel rail Ignition on With the DRB actuate the ASD Fuel System test and observe the fuel pressure gauge Note Fuel pressure specification is 406 KPa 34 KPa 59 psi 5 psi Choose a conclusion that best matches your fuel pressure reading Below Specification GoTo 3 Within Specification GoTo 13 Above Specification Replace the fuel filter pressure regulator Caution Stop All Actuations Ignition On Engine Not Running With the DRBIII read the TPS voltage While monitoring the DRBIII slowly open and close the Throttle Is the voltage change smooth Yes gt GoTo 4 No Replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Ignition On Engine Not Running With the DRB read TP Sensor voltage Throttle must be against stop 15 the voltage 0 92 or less with the Throttle closed Yes gt GoTo 5 No Check for a binding throttle condition If OK replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 101 DRIVEABILITY 0171 1 1 FUEL SYSTEM LEAN Continued ACTION APPLICABILITY Note For this test to be valid the thermostat must be operating correctly All Note This test works best if performed on a cold engine cold soak Turn Ignition With the DRB in sensors read the Eng Coolant Tmp Deg value If the engine was allowed to sit overnight cold soak the temperature value should be a sensible
339. oTo 3 Replace the Sentry Key Immobilizer Module Using the DRB erase the codes Drive vehicle Perform several key cycles Does the code appear Yes Replace the Powertrain Control Module Perform the SKIS Verification Test No Test Complete Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the SKIS Verification Test No Test Complete 322 VEHICLE THEFT SECURITY Symptom List TRANSPONDER CYCLIC REDUNDANCY CHECK CRC FAILURE TRANSPONDER COMMUNICATION FAILURE TRANSPONDER ID MISMATCH TRANSPONDER RESPONSE MISMATCH Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be TRANSPONDER CYCLIC RE DUNDANCY CHECK CRC FAILURE When Monitored and Set Condition TRANSPONDER CYCLIC REDUNDANCY CHECK CRC FAILURE When Monitored At ignition ON and during Key Programming Mode Set Condition This condition exists when 5 consecutive transponder signal transmis sions are sent to the SKIM with the correct message format but with invalid data TRANSPONDER COMMUNICATION FAILURE When Monitored At ignition ON a
340. oTo 7 Turn the ignition off Disconnect the EGR solenoid harness connector Turn the ignition on With the DRB monitor the EGR position sensor voltage 15 the voltage above 4 0 volts Yes Replace the EGR solenoid assembly Perform the Powertrain Verification Test Ver 2 No GoTo 3 Turn the ignition off Disconnect the EGR solenoid harness connector Turn the ignition on Measure the voltage of the 5 volt supply circuit 15 the voltage below 4 5 volts Yes Repair the open in the 5 volt supply circuit Perform the Powertrain Verification Test Ver 2 gt GoTo 4 177 DRIVEABILITY P0405 EGR POSITION SENSOR VOLTAGE TOO LOW Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Measure resistance of the EGR sensor signal circuit to engine ground at the EGR solenoid connector 15 the resistance below 5 0 ohms Yes Repair the short to ground in the EGR sensor signal circuirt Perform the Powertrain Verification Test Ver 2 No gt GoTo 5 Turn the ignition off Disconnect the PCM harness connector Disconnect the EGR solenoid harness connector Measure the resistance of the EGR sensor signal circuit to sensor ground circuit at the EGR solenoid connector Is the resistance below 5 0 ohms Yes gt Repair the EGR sensor signal circuit for a short to the sensor ground circuit Perform
341. oblem may have been caused by moisture in the secondary ignition With the DRB read and record the FREEZE FRAME DATA and SIMILAR CONDI TIONS WINDOW DATA With these screens attempt to duplicate the condition that has set the Misfire DTC While using FREEZE FRAME DATA pay particular attention to the DTC setting conditions such as speed temp load and map vacuum Does the mis fire reoccur Yes gt GoTo 4 gt Mis fire DTC conditions no longer exist Refer to any TSB s that may relate to the symptom Operate the vehicle for 1 misfire good trip and erase Perform the FUEL MISFIRE VERIFICATION TEST With the DRB read the FREEZE FRAME DATA Use the FREEZE FRAME DATA and attempt to determine the cause of the Misfire DTC In the FREEZE FRAME are the adaptive fuel percentages greater than 15 Yes Refer tosymptom CHECKING FUEL DELIVERY inthe DRIVE ABILITY category No gt GoTo 5 normal Yes Test CMP and CKP signals with Lab Scope check valve timing and perform running vacuum test Perform the FUEL MISFIRE VERIFICATION TEST GoTo 6 Check for any of the following conditions mechanical problems ENGINE VACUUM must at least 13 inches in neutral ENGINE VALVE TIMING must be within specifications ENGINE COMPRESSION must be within specifications ENGINE EXHAUST SYSTEM must be free of any restrictions or leaks ENGINE PCV SYSTEM must flow freely TORQUE CONVERTER STALL SPEED mu
342. odule Connector Note Check connectors Clean repair as necessary Use 12 volt test light in the following step Connect 12V test light to B Probe the Ground Circuits one at a time in the PCM Connector Was the light illuminated and bright in each circuit Yes gt GoTo 4 No Repair the ground s for an open or high resistance at the Powertrain Control Module Perform the Powertrain Verification Test Ver 1 Turn ignition off Disconnect the Powertrain Control Module Connector Turn ignition on With a Voltmeter measure the F used B Circuit in the PCM Connector 15 the voltage above 10 0 volts Yes Refer to symptom NO RESPONSE FROM PCM SCI ONLY the COMMUNICATION category No gt GoTo 5 Remove the Fuse in the PDC that supplies F used B to the PCM Inspect the Fuse Is the Fuse OK Yes gt GoTo 6 No gt GoTo 8 Remove the fuse in the PDC that supplies Fused B tothe PCM Using a Voltmeter measure the B side of the Fuse Socket 15 the voltage above 10 0 volts Yes gt GoTo 7 No Repair the open Circuit from Fuse to the Battery Perform Powertrain Verification Test VER 1A Remove the fuse the PDC that supplies Fused to the PCM Disconnect the PCM Using ohmmeter measure the resistance between the fuse and the PCM Is the resistance below 5 0 ohms Yes gt Test Complete No the open Fused B Circuit from Fuse to PCM Perform
343. ohms Yes gt GoTo 8 GoTo 18 Turn ignition off Disconnect and remove the camshaft position sensor Inspect the tone wheel pulse ring for physical damage Make sure that it turns when the engine is cranked 15 the tone wheel pulse ring free from defects Yes gt GoTo 9 No tone wheel pulse ring as necessary If there no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 146 40 SIGNAL PCM Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Camshaft Position Sensor connector Turn ignition on Using a voltmeter measure the Camshaft Position Sensor Signal circuit at the Camshaft Position Sensor connector Select a conclusion that best matches your voltage measurement Less than 4 5 volts GoTo 11 Between 4 5 and 5 5 volts GoTo 15 Between 7 5 and 8 5 volts Repair the CMP signal circuit for a short to the 8 volt supply circuit Perform the Powertrain Verification Test Ver 5 Greater than 8 5 volts Repair the CMP signal circuit shorted to voltage Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Camshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessa
344. oid connector 15 the resistance below 5 0 ohms Yes Repair the short to ground in the EGR solenoid control circuirt Perform the Powertrain Verification Test Ver 2 gt GoTo 5 169 DRIVEABILITY P0401 EGR SYSTEM FAILURE Continued APPLICABILITY Turn the ignition on Turn all accessories off Disconnect the EGR solenoid harness connector Using a 12 volt Test Light connected totheASD relay out ckt probe the EGR solenoid control circuit With the DRB actuate the EGR solenoid Does the 12 volt test light flash on and off Yes gt GoTo 8 GoTo 10 Turn the ignition off Remove the EGR valve assembly and tube Inspect the EGR valve assembly and the EGR tube for damage obstructions and leaks Were any problems found Yes Repair or replace EGR solenoid assembly as necessary Perform the Powertrain Verification Test Ver 2 No GoTo 9 If there no possible causes remaining replace the PCM All View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 2 Turn the igntion off Disconnect the EGR solenoid harness connector Turn the ignition on With the DRB actuate the ASD Using a 12 volt Test Light connected to ground probe the ASD relay output circuit at the EGR solenoid harness connector Does the 12 volt test light illuminate Yes gt GoTo 11 No the open the ASD Realy output circuit Per
345. oil on plug no 5 Perform the Powertrain Verification Test Ver 5 162 55 COIL 5 PRIMARY CIRCUIT Continued ACTION APPLICABILITY Turn ignition off Disconnect the plug 5 connector Turn ignition on With the DRB actuate the generator field Usinga 12 volt test light connected to ground check the ASD relay output circuit at the coil on plug no 5 electrical connector Does the test light illuminate brightly Yes gt GoTo 4 No Repair the open high resistance in the ASD relay output circuit Perform the Powertrain Verification Test Ver 5 Stop All Actuations Turn ignition off Note The following test is done at the coil on plug no 2 connector with the coil on plug connected Back probe the coil driver no 5 circuit with Miller tool 6801 and a test light connected to Warning Keep clear of the engine s moving parts Start the engine and observe the test light Does the test light blink flicker Yes gt Test Complete gt GoTo 5 Caution Turn the Engine Off Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the coil driver no 5 circuit from the coil on plug no 5 connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open coil driver 5 circuit Perform the Powertrain Verification Test Ver 5 Turn ignition of
346. on sensor Inspect the tone wheel flex plate for physical damage Make sure that it turns when the engine is cranked 15 the tone wheel pulse ring free from defects Yes gt GoTo 21 No tone wheel flex plate as necessary Turn ignition off Disconnect the Crankshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the sensor ground circuit from the CKP sensor connector to the PCM connector 15 the resistance below 5 0 ohms Yes gt GoTo 22 No Repair the open sensor ground circuit Perform the Powertrain Verification Test Ver 5 If there are no possible causes remaining replace the Powertrain Control Module All View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No gt GoTo 24 Turn ignition off Connect the DRBIII lab scope to the CKP signal circuit For best results backprobe at the PCM using Miller special tool 6801 Warning
347. onal Note If the will not read PCM follow the NO RESPONSE PCM SCI only symptom path if vehicle will start For NO START Condi tions follow symptom RE SPONSE in Starting catagory Turn the ignition off Disconnect the PCM harness connector Connect the DRB to the Data Link connector Use Scope input cable CH 7058 Cable to Probe adapter CH 7062 and the red and black test probes Connect the scope input cable to the channel one connector on the DRB Attach the red and black leads and the cable to probe adapter to the scope input cable Select DRB Standalone Select lab scope Select Live Select 12 volt square wave Press F2 for Scope Press F2 and use the down arrow to Set voltage range to 20 volts Press F2 again when complete Connect the Black lead to the PCM ground Connect the Red lead to the PCM Bus circuit Turn the ignition on Observe the the voltage displayed on the DRB Lab Scope What is the voltage displayed on the scope Pulse from 0 to approximately 7 5 volts Replace the Powertrain Control Module Perform Powertrain Verification Test VER 1A Steady 0 volts GoTo 7 39 COMMUNICATION P1695 NO CCD 1850 MESSAGE FROM BODY CONTROL MODULE Continued ACTION APPLICABILITY Turn the ignition off All Disconnect the PCM harness connector Disconnect the BCM harness connector Measure the resistance of the PCI Bus circuit from the PCM to the BCM Is the resi
348. onnect the Ambient Temperature Sensor connector Close all doors insure all lights are off then wait one minute Measure the resistance of the sensor ground circuit to ground Is the resistance below 30 ohms No gt GoTo 4 Yes gt GoTo 6 If there are no possible causes remaining replace the BCM View repair options Repair Replace the BCM Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Ambient Temperature Sensor connectors Disconnect the BCM connectors Using Ohmmeter measure the resistance of the Ambient Temperature Sensor Signal circuit from the Sensor connector to the BCM connector Is the resistance below 5 0 ohms Repair the open circuit Perform the Powertrain Verification Test Ver 5 Yes gt GoTo 7 Turn ignition off All Disconnect the Ambient Temperature Sensor connector Disconnect the BCM connector Measure the resistance of the Sensor Ground circuit between the Ambient Temper ature Sensor connector and the BCM Is the resistance below 5 0 ohms Repair the open Sensor Ground circuit Perform the Powertrain Verification Test Ver 5 Yes gt GoTo 5 20 CHARGING P1492 AMBIENT BATT TEMP SEN VOLTS TOO HIGH Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Ambient Temperature Sensor connector Disconnect the BCM connector Using Ohmmeter measure the resistance between the Sensor Ground circuit and grou
349. onnect the PCM harness connectors Using an Ohmmeter measure the resistance between the IAT Sensor Signal circuit and the Sensor Ground circuit at the IAT Sensor connector Is the resistance below 5 0 ohms Yes Repair the shorted circuit Perform the Powertrain Verification Test Ver 5 No gt GoTo 5 If there are no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Complete 70 Symptom 113 1 AIR TEMP SENSOR VOLTAGE HIGH EE When Monitored and Set Condition 0113 AIR TEMP SENSOR VOLTAGE HIGH When Monitored With the ignition and battery voltage greater than 10 4 volts Set Condition Theintake air temperature IAT sensor circuit voltage at the PCM goes above
350. onnect the Powertrain Control Module connectors Disconnect the Transmission Control Module harness connector Using an ohmmeter measure the resistance of the Vehicle Speed Sensor Signal circuit to ground at the PCM harness connector Is the resistance below 5 0 ohms Yes gt Repair the short to ground the vehicle speed signal circuit Perform the Powertrain Verification Test Ver 5 No GoTo 6 No Test Complete 196 Symptom P0505 IDLE AIR CONTROL MOTOR CIRCUITS When Monitored and Set Condition P0505 IDLE AIR CONTROL MOTOR CIRCUITS When Monitored At key on and battery voltage greater than 11 5 volts Set Condition The PCM senses a short to ground or battery voltage on any of the four Idle Air Control driver circuits for 2 75 seconds while the IAC motor is active POSSIBLE CAUSES IAC MOTOR WIRING HARNESS OBSERVABLE IAC MOTOR WIRING HARNESS INTERMITTENT IAC 1 DRIVER CIRCUIT SHORTED 2 3 OR 4 IAC 2 DRIVER CIRCUIT SHORTED TO 38 OR 4 IAC DRIVER CIRCUIT SHORTED TO 4 IAC MOTOR IAC 1 DRIVER CIRCUIT SHORTED TO GROUND IAC 2 DRIVER CIRCUIT SHORTED TO GROUND IAC DRIVER CIRCUIT SHORTED TO GROUND IAC 4 DRIVER CIRCUIT SHORTED TO GROUND IAC 1 DRIVER CIRCUIT OPEN IAC 2 DRIVER CIRCUIT OPEN IAC DRIVER CIRCUIT OPEN IAC 4 DRIVER CIRCUIT OPEN POWERTRAIN CONTROL MODULE IAC 1 DRIVER POWERTRAIN CONTROL MODULE IAC 2 DRIVER POWERTRAIN CONTROL MODULE IAC 48 DRIVER POWERTRA
351. onnector Is resistance below 5 0 ohms for both circuits Yes gt GoTo 15 Replace the Clockspring Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the Speed Control Resume Accel Switch Note Check connectors Clean repair as necessary Connect J umper between the S C Switch Signal and Sensor Ground at the switch connector Ignition On Engine Not Running With the DRB read the S C Switch voltage Does the DRB show S C Switch is less than 1 0 volt Yes Replace the right Speed Control Switch Perform the Powertrain Verification Test Ver 4 No GoTo 41 Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo Connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the Ground Circuit at the Servo Connector to ground Is the resistance below 5 0 ohms Yes gt GoTo 17 No Repair open Ground Circuit at S C Servo Connector Perform the Powertrain Verification Test Ver 4 Inspect the throttle cable and linkage for any binding or damage SPEED CONTROL 15 the cable or linkage disconnected or damaged Yes gt Repair as necessary Perform the Powertrain Verification Test Ver 4 GoTo 18 Ignition On Engine Running SPEED CONTROL With the DRB read the Speed Control Switch voltage Does the DRB show Speed Control Switch voltage above 4 0 volts Yes gt GoTo 19 No GoTo 29
352. ontrol Module Perform the Powertrain Verification Test Ver 4 Ignition on with engine not running SPEED CONTROL With the read Are any Vehicle Speed Signal codes set Yes Refer to symptom 500 VEHICLE SPEED SIGNAL in the DRIVEABILITY category No GoTo 39 Disconnect the Speed Control On Off Switch SPEED CONTROL With the DRB read the Speed Control Switch Voltage Did the DRB show Speed Control Switch Voltage go from below 4 0 Volts to above 4 0 Volts Yes Replace the Left Speed Control Switch Perform the Powertrain Verification Test Ver 4 GoTo 40 Disconnect the Speed Control Resume Accel Switch SPEED CONTROL With the DRB read the Speed Control Switch Voltage Did the DRB show Speed Control Switch Voltage go from below 4 0 Volts to above 4 0 Volts Yes Replace the Right Speed Control Switch Perform the Powertrain Verification Test Ver 4 GoTo 41 295 SPEED CONTROL CHECKING SPEED CONTROL OPERATION WITH NO DTC S PRESENT Continued ACTION APPLICABILITY Start Engine SPEED CONTROL Allow engine to idle for 1 minute Turn engine off then ignition on engine not running With the DRB actuate the Speed Control Servo Solenoids Does the Throttle open and close Yes gt GoTo 42 Perform Speed Control Vacuum Supply Test per appropriate service procedure Perform the Powertrain Verification Test Ver 4 At this time the Speed
353. ontrol Module Perform the Powertrain Verification Test Ver 5 128 206 1 6 CONTROL CIRCUIT Continued APPLICABILITY At this time the conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform wiggletest of the injector wiring whilethe engineis running Listen for the engine to miss or stall Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 129 DRIVEABILITY Symptom List P0O300 MULTIPLE CYLINDER MIS FIRE PO301 CYLINDER 1 MISFIRE P0302 CYLINDER 2 MISFIRE P0303 CYLINDER 3 MISFIRE P0304 CYLINDER 4 MISFIRE P0O305 CYLINDER 5 MISFIRE PO306 CYLINDER 6 MISFIRE Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will POSOO MULTIPLE CYLINDER MIS FIRE When Monitored and Set Condition PO30
354. oop mode Acceleration Mode This is a closed loop mode ThePCM recognizes an increase in throttle position and a decrease in manifold vacuum as engine load increases response the PCM increases the jector pulse width to meet the increased load The A C compressor may be de energized for a short period of time Deceleration This is a closed loop mode The PCM recognizes a decrease in throttle position and an increase in manifold vacuum as engine load decreases In response the PCM decreases the injector pulse width to meet the decreased load Full injector shut off may be obtained during high speed deceleration Wide Open Throttle Mode This is an open loop mode The throttle position sensor notifies the of a wide open throttle condition Once a wide open throttle is sensed the PCM de energizes the A C compressor clutch relay for 15 seconds 3 2 5 NON MONITORED CIRCUITS The PCM does not monitor the following circuits systems and conditions even though they could have malfunctions that result in driveability prob lems A diagnostic code may not be displayed for the following conditions However problems with these systems may cause a diagnostic code to be displayed for other systems For example a fuel pressure problem will not register a diagnostic code directly but could cause a rich or lean condition This could cause an oxygen sensor fuel system or misfire monitor trouble code to be stored in the PCM
355. orm Powertrain Test Verification VER 5A Measure resistance between the MAP Sensor Signal Circuit and the MAP Sensor Ground Circuit 15 the resistance below 5 0 ohms Yes Repair MAP Sensor Signal Circuit shorted to MAP Sensor Ground Circuit Perform Powertrain Test Verification VER 5A GoTo 11 If there are possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform Powertrain Test Verification VER 5A Turn ignition off Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes gt Repair as necessary Perform Powertrain Test Verification VER 5A Turn the ignition off All Disconnect the MAP Sensor harness connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary No GoTo 13 61 DRIVEABILITY 0106 PRESSURE OUT OF RANGE Continued APPLICABILITY Warning KEEP CLEAR OF THE ENGINE S MOVING PARTS All Start engine With the DRB read the MAP Sensor voltage Wiggle MAP Sensor Connector amp Harness Monitor the DRB display Was there any MAP Sensor voltage change Yes Repair the Harness or Connector that caused the voltage change Perform Powertrain Test Verification VER 5A No Test Complete 62 Symptom 0107 SENSOR VOLTAGE TOO LOW
356. orm Powertrain Verification Test VER 5 Ignition On Engine Not Running With the DRB read TP Sensor voltage Throttle must be against stop Is the voltage 0 92 or less with the Throttle closed Yes gt GoTo 15 No Check for a binding throttle condition If OK replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Note For this test to be valid the thermostat must be operating correctly All Note This test works best if performed on a cold engine cold soak Turn Ignition On With the DRB in sensors read the Eng Coolant Tmp Deg value If the engine was allowed to sit overnight cold soak the temperature value should bea sensible value that is somewhere close to the surrounding temperature ambient temperature Note If engine coolant temperature is above 82 C 180 F allow the engine to cool until 65 150 F is reached Start the Engine During engine warm up monitor the Eng Coolant Tmp Deg value The temp deg value change should be a smooth transition from start up to normal operating temp 82 C 180 F The value should reach at least 82 C 180 F Was the Eng Coolant Deg value increase a smooth transition and did it reach at least 180 Yes gt GoTo 16 Replace the Engine Coolant Temperature Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off Connect a Vacuum Gauge to a Manifold Vacuum source Start the engine Allow
357. ot lit or dim test light in Fused Ignition Switch Output Run St circuit Perform the 42LE Transmission Verification Test Ver 1 53 COMMUNICATION NO RESPONSE FROM TCM Continued ACTION APPLICABILITY Turn ignition off to the lock position All Disconnect the TCM connector Remove the starter relay from the PDC Connec the ground lead of a test light to a known good ground Using a 12 volt Test Light connected to ground check the Fused Ignition Switch Output Start circuit in the TCM connector Turn the ignition switch to the start position Note The light must illuminate brightly if it does not light or lights dimly the circuit must be repaired If there is any doubt compare the brightness when testing the circuit to the brightness when connected directly to the battery positive post Does the test light illuminate brightly Yes gt GoTo 5 Repair cause of unlit or dim test light in Fused Ignition Switch Output Start circuit Perform the 42LE Transmission Verification Test Ver 1 Note Reinstall the Starter Relay Turn ignition off to the lock position Disconnect the Transmission Control Module TCM harness connector Note Check connectors Clean repair as necessary Connect the ground clip of a test light to a known good 12 volt source on the vehicle such as the positive battery post Probe all ground circuit s in the TCM connector with the test light Does the light illuminate bri
358. perature above 20 deg F and altitude below 8000 ft Set Condition IfthePCM multiplies short term compensation by long term adaptive and the result is below a certain value for two trips a freeze frame is stored the MIL illuminates and a trouble code is stored 0175 2 1 FUEL SYSTEM RICH When Monitored With the engine running in closed loop mode the ambient battery temperature above 20 deg F and altitude below 8000 ft Set Condition IfthePCM multiplies short term compensation by long term adaptive and the result is below a certain value for two trips a freeze frame is stored the MIL illuminates and a trouble code is stored POSSIBLE CAUSES ENGINE MECHANICAL PROBLEM FUEL FILTER PRESSURE REGULATOR HIGH FUEL PUMP CAPACITY VOLUME OUT OF SPECS HIGH RESISTANCE IN THE FUEL PUMP RELAY OUTPUT CIRCUIT FUEL PUMP INLET STRAINER PLUGGED TPS VOLTAGE CHANGE NOT SMOOTH TPS VOLTAGE GREATER THAN 0 92 VOLTS WITH THROTTLE CLOSED HIGH RESISTANCE IN THE FUEL PUMP GROUND CIRCUIT FUEL PUMP MODULE KINKED RESTRICTED FUEL SUPPLY LINE ECT SENSOR OUT OF CALIBRATION MAP SENSOR OUT OF CALIBRATION 106 0172 1 1 FUEL SYSTEM RICH Continued ACTION APPLICABILITY Turn ignition on With the DRB read the 5 Is the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 GoTo 19 Note Engine must be at operating temp and in closed loop to perform this test Start engine and ru
359. r Signal Circuit Perform Powertrain Test Verification VER 5A If there are no possible causes remaining replace the PCM View repair options Repair Replace the PCM Perform Powertrain Test Verification VER 5A Turn ignition off All Disconnect the MAP Sensor Electrical Connector Disconnect the PCM Connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the Sensor Ground Circuit between the MAP Sensor and the Powertrain Control Module 15 the resistance below 5 0 ohms 67 DRIVEABILITY 0108 SENSOR VOLTAGE TOO HIGH Continued ACTION APPLICABILITY Turn ignition off All Using the schematic as a guide inspect the Wiring and Connectors Were any problems found Yes Repair as necessary Perform Powertrain Test Verification VER 5A No gt GoTo 9 Warning KEEP CLEAR OF THE ENGINE S MOVING PARTS Start engine With the DRB read the MAP Sensor voltage Wiggle MAP Sensor Connector amp Harness Monitor the DRB display Was there any MAP Sensor voltage change Yes Repair the Harness or Connector that caused the voltage change Perform Powertrain Test Verification VER 5A No Test Complete 68 Symptom 0112 AIR TEMP SENSOR VOLTAGE LOW When Monitored and Set Condition 0112 AIR TEMP SENSOR VOLTAGE LOW When Monitored With the ignition on and battery voltage greater than 1
360. r the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 Test Complete 158 Symptom P0354 IGNITION COIL 4 PRIMARY CIRCUIT MMMM When Monitored and Set Condition P0354 IGNITION COIL 4 PRIMARY CIRCUIT When Monitored With battery voltage greater than 8 volts during engine cranking or greater than 12 volts with engine running engine rpm less than 2016 and none of the coils in dwell when checked Set Condition Peak current is not achieved with battery based dwell plus 1 5 msec of diagnostic offset It takes less than 3 seconds during cranking or up to 6 seconds while running to set POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT COIL DRIVER NO 4 CIRCUIT OPEN WIRING HARNESS INTERMITTENT COIL DRIVER NO 4 CIRCUIT SHORTED TO GROUND COIL ON PLUG 4 DEFECTIVE POWERTRAIN CONTROL MODULE COIL DRIVER NO 4 ACTION APPLICABILITY Turn ignition on All With the DRB read the Is the Global Good Trip Counter displayed and equal to zero for P 0354 Yes gt GoTo 2 GoTo 8 Turn ignition off Disconnect the coil on plug no 4 connector Note The following resistance measurement should be taken at 70 80 degrees F Using an ohmmeter measure the primary resistance of the coil on plug Is the resistance between 0 6 and 0 9 ohms Yes gt Go
361. r tothe Communication category for proper tests Make sure that the PCI bus is functional on the vehicle Attempt to communicate with the BCM If the DRB reports a PCI bus problem refer to the Communication category of symptoms for proper tests If the vehicle is equipped with a Sentry Key Immobilizer System SKIS check for proper communication with the DRBIII any DTC s that may be stored the Sentry Key Immobilizer Module 5 Continue with other tests Repair GoTo 2 Check for any open fuses in the PDC or J unction Block that may be related tothe No Start condition Are any of the fuses open Yes gt Replace the open fuse and check the related circuit s for a short to ground Perform the Powertrain Verification Test Ver 1 GoTo 3 while cranking the engine Are there any Secondary Indicators present while cranking the engine Yes Refer to symptom list and perform tests related to the secondary indicator that is reported by the DRB Perform the Powertrain Verification Test Ver 1 GoTo 4 Turn the ignition on With the in nputs Outputs read the Veh Theft Security status Does the Veh Theft Security status read Fuel Yes gt GoTo 5 Refer to the Symptom list for problems related to Vehicle Theft Security Make sure the PCI Bus is functional and that the SKIM is communicating on the PCI Bus With the Inputs Outputs read the Current CKP State
362. rcuit A141 at connector C308 Does the test light illuminate brightly Yes gt GoTo 13 Repair the high resistance the fuel pump relay ouput circuit Check wire PDC to fuel pump module connector Also check for bad relay Perform Powertrain Verification Test VER 1A Caution Stop All Actuations Turn ignition off All Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Using a test light connected to B check the fuel pump ground circuit Z1 at connector C308 Does the test light illuminate brightly Yes gt GoTo 14 No the high resistance the fuel pump ground circuit Perform Powertrain Verification Test VER 1 Note Re connect connector C308 before performing the next test Visually inspect the fuel supply line from the fuel tank to the fuel rail Look for any signs of physical damage that may restrict the supply line Were any problems found with the fuel supply line Yes fuel supply line as necessary No GoTo 15 Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Remove the Fuel Pump Module and in
363. rcuit and refer to verification test 5 Is the INJ COIL fuse OK Yes Replace the Capactitor s Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary No Test Complete 215 DRIVEABILITY Symptom P1294 TARGET IDLE NOT REACHED When Monitored and Set Condition P1294 TARGET IDLE NOT REACHED When Monitored With the engine idling and in drive if automatic There must not bea MAP sensor trouble code or a throttle position sensor trouble code Set Condition Engine idle is not within 200 rpm above 100 rpm below target idle for 14 seconds One bad trip is required to set the DTC POSSIBLE CAUSES THROTTLE BODY THROTTLE PLATE LINKAGE BINDING VACUUM LEAK THROTTLE BODY DIRTY APPLICABILITY Turn ignition on All With the read the DTC s 15 the Good Trip Counter displayed and equal to zero for P 1294 Yes gt GoTo 2 No Test Complete Turn ignition off Check the throttle plate and linkage for a binding condition The throttle linkage must be at idle position Ensure the throttle plate is fully closed
364. re any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 Test Complete 167 Symptom P0401 EGR SYSTEM FAILURE When Monitored and Set Condition P0401 EGR SYSTEM FAILURE When Monitored With engine temp greater than 82 degress 180 degress ambient temp above 18 degress C 0 degress F engine in closed loop O2 sensor operational engine under a steady load with the throttle open and 02 controller not at or near its limits Set Condition Conditions are met the EGR is turned off and on momentarily The oxygen sensor signal is monitor for changes in its output signal during this test If no significant change or too much change is seen a flag is set POSSIBLE CAUSES INSPECT EGR ASSEMBLY EGR VALVE OPEN AT IDLE WIRING HARNESS INTERMITTENT ASD RELAY OUTPUT CIRCUIT OPEN EGR SOLENOID CONTROL CKT OPEN EGR SOLENOID CONTROL CKT SHORT TO GND EGR SOLENOID CONTROL CKT SHORTED TO SENSOR GND EGR SOLENOID CONTROL CKT SHORTED TO VOLTAGE PCM PCM OPEN INTERNALLY PCM SHORTED INTERNALLY APPLICABILITY Turn the ignition on All With the DRB read 15 the Globel Good Trip displayed and equal to 0 Yes gt GoTo 2 No gt GoTo 14 168 P0401 EGR SYSTEM FAILURE Continued ACTION APPLICABILITY Note If the vehicle is running rough at idle DRB not actuated follow th
365. re the fuel injector no 2 driver circuit from the fuel injector no 2 electrical connector to the PCM connector 15 the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open fuel injector no 2 driver circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 2 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the fuel injector no 2 driver circuit and ground B 15 the resistance below 5 0 ohms Yes Repair the injector driver circuit for a short to ground Note shorted injector driver circuit may have ruined the injector also Injector resistance should be between 10 and 16 ohms Perform the Powertrain Verification Test Ver 5 No gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 116 0202 1 2 CONTROL CIRCUIT Continued APPLICABILITY At this time the conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinc
366. reater than 4 91 volts 6 seconds POSSIBLE CAUSES WIRING HARNESS INTERMITTENT SENSOR GROUND OPEN EGR SENSOR SIGNAL CKT OPEN EGR SENSOR SIGNAL SHORTED TO VOLTAGE EGR SENSOR SIGNAL CKT SHORTED TO 5 VOLT SUPPLY CKT EGR SENSOR EGR SENSOR POTENTIOMETER PCM APPLICABILITY Turn the ignition on All With the read Is the Global Good Trip displayed and equal to 0 Yes gt GoTo 2 No GoTo 8 Turn the ignition off Disconnect the EGR solenoid harness connector Turn the ignition on Measure the voltage of the EGR sensor signal circuit in the EGR solenoid connector 15 the voltage above 5 0 volts Yes Repair the short to voltage the EGR sensor signal circuit Perform the Powertrain Verification Test Ver 2 No gt GoTo 3 Turn the ignition off Disconnect the EGR solenoid harness connector Turn the ignition on With the DRB monitor the EGR sense voltage while connecting a jumper wire between the EGR sensor signal and sensor ground ckt Is the voltage below 1 0 volt Yes Replace the EGR solenoid assembly Perform the Powertrain Verification Test Ver 2 No gt GoTo 4 179 DRIVEABILITY P0406 EGR POSITION SENSOR VOLTS TOO HIGH Continued ACTION APPLICABILITY Turn the igntion off All Disconnect the EGR solenoid harness connector Using a 12 volt Test Light connected to 12 volts probe the sensor ground circuit Does the 12 volt test light illuminate Yes gt
367. ressed for a vehicle equipped with a manual transmission Warning The engine may be cranked in the next step Keep away from moving engine parts Briefly connect a jumper wire between Starter Rly B and Output Circuits Did the Starter Motor crank the engine Yes Replace the starter relay Perform the Powertrain Verification Test Ver 1 No GoTo 8 Ensure the engine is able to turn over and is not seized Is the engine able to turn over Yes gt GoTo 9 No Repair the mechanical condition preventing the starter motor from cranking Perform the Powertrain Verification Test Ver 1 305 STARTING NO CRANK CONDITION Continued ACTION APPLICABILITY Turn ignition off All Disconnect the Starter Relay Warning The Parking Brake must be on and the Transmission must be in park for a vehicle equipped with an automatic transmission or the clutch pedal depressed for a vehicle equipped with a manual transmission Warning The engine may be cranked in the next step Keep away from moving engine parts Briefly connect a jumper wire between Starter Rly and Output Circuits Did the Starter Motor Crank the Engine Yes gt GoTo 10 Replace the Starter Perform the Powertrain Verification Test Ver 1 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 1 306 S
368. rification Test Ver 4 GoTo 25 If there are no possible causes remaining replace the Powertrain Control Module SPEED CONTROL View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 4 284 SPEED CONTROL Symptom P1597 SPEED CONTROL SWITCH ALWAYS LOW When Monitored and Set Condition P1597 SPEED CONTROL SWITCH ALWAYS LOW When Monitored With the ignition key on and battery voltage above 10 4 volts Set Condition When switch voltage is less than 0 39 volts for 2 minutes POSSIBLE CAUSES CLOCKSPRING SHORTED TO GROUND S C WIRING HARNESS OBSERVABLE PROBLEM S C SWITCH ON OFF S C SWITCH RESUME ACCEL S C SIGNAL CIRCUIT SHORTED TO SENSOR GROUND S C SWITCH SIGNAL CIRCUIT SHORTED TO GROUND SPEED CONTROL ON OFF SWITCH STUCK SPEED CONTROL RESUME ACCEL SWITCH STUCK PCM APPLICABILITY Ignition On Engine Not Running SPEED CONTROL With DRB read the S C Switch volts in Sensors Is the S C Switch voltage below 1 0 volt Yes gt GoTo 2 No GoTo 8 Turn ignition off SPEED CONTROL Disconnect the S C ON OFF Switch Note Check connectors Clean repair as necessary Turn ignition on with engine not running With the DRB read the S C Switch volts in Sensors Did the S C Switch volts change to 5 0 volts Yes Replace the S C ON OFF Switch Perform the Powertrain Verification Test Ver 4 No gt GoTo 3 285 SPEED CO
369. river circuit and ground B Is the resistance below 5 0 ohms Yes Repair the injector driver circuit for a short to ground Note shorted injector driver circuit may have ruined the injector also Injector resistance should be between 10 and 16 ohms Perform the Powertrain Verification Test Ver 5 gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the fuel injector no 1 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the fuel injector 1 driver circuit from the fuel injector no 1 connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open fuel injector 1 driver circuit 113 DRIVEABILITY 0201 1 ECTOR 1 CONTROL CIRCUIT Continued APPLICABILITY At this time the conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken
370. rm the Powertrain Verification Test Ver 4 No GoTo 22 Turn ignition off Disconnect the Brake Switch Connector Disconnect the Powertrain Control Module Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the S C Power Supply Circuit from the PCM tothe Brake Switch Connector 15 the resistance below 5 0 ohms Yes gt GoTo 23 No Repair the open S C Power Supply Circuit Perform the Powertrain Verification Test Ver 4 Turn ignition off SPEED CONTROL Disconnect the Speed Control Servo 4 Way Connector Disconnect the brake switch connector Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the S C Brake Switch Output circuit from Servo Connector to ground 15 the resistance below 5 0 ohms Yes Repair Switched S C Brake Switch Output circuit shorted to ground Perform the Powertrain Verification Test Ver 4 GoTo 24 283 SPEED CONTROL P1595 SPEED CONTROL SOLENOID CIRCUITS Continued ACTION APPLICABILITY Turn ignition off SPEED CONTROL Disconnect the S C Servo Connector Disconnect the Brake Switch Connector Note Check connectors Clean repair as necessary With an Ohmmeter measure the resistance of the S C Brake Switch Output Circuit from the Brake Switch Connector to the Servo Connector Is the resistance above 5 0 ohms Yes Repair the open S C Brake Switch Output Circuit Perform the Powertrain Ve
371. roken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 2A No Test Complete 229 Symptom P1391 INTERMITTENT LOSS OF CMP OR CKP When Monitored and Set Condition P1391 INTERMITTENT LOSS OF CMP OR CKP When Monitored Engine running or cranking Set Condition When the failure counter reaches 20 for 2 consecutive trips POSSIBLE CAUSES DAMAGED TONE WHEEL FLEX PLATE CRANKSHAFT DAMAGED TONE WHEEL PULSE RING CAMSHAFT INTERMITTENT CMP SIGNAL LOSS WHEN WIRING IS WIGGLED INTERMITTENT CKP SIGNAL LOSS WHEN WIRING IS WIGGLED IRREGULAR LAB SCOPE PATTERN OF CKP SIGNAL IRREGULAR LAB SCOPE PATTERN OF CMP SIGNAL CAMSHAFT POSITION SENSOR SENSOR CONNECTOR WIRING CRANKSHAFT POSITION SENSOR ACTION APPLICABILITY Turn ignition on All With the read the DTC s 15 the Global Good Trip Counter displayed and equal to zero for P1391 Yes gt GoTo 2 gt GoTo 13 Turn ignition off With the DRB lab scope backprobe the CMP signal circuit at the CMP sensor connector using Miller special tool 6801 Warning Keep clear of the engine s moving parts Start the engine Observe the CMP sensor voltage pattern on the lab scope screen
372. ry Using ohmmeter measure the resistance of the Camshaft Position Sensor Signal circuit from the Camshaft Position Sensor connector to the PCM connector 15 the resistance below 5 0 ohms Yes gt GoTo 12 the open Camshaft Position Sensor Signal circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Camshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between the Camshaft Position Sensor signal circuit and ground Is the resistance below 5 0 ohms Yes Repair the Camshaft Position Sensor Signal circuit for a short to ground Perform the Powertrain Verification Test Ver 5 GoTo 13 147 DRIVEABILITY 40 CAM SIGNAL AT PCM Continued ACTION APPLICABILITY Turn ignition off Disconnect the Camshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between the Camshaft Position Sensor signal circuit and the sensor ground circuit at the Camshaft Position Sensor connector Is the resistance below 5 0 ohms Yes Repair the Camshaft Position Sensor signal circuit for a short to the sensor ground circuit Perform the Powertrain Verification Test Ver 5 GoTo 14 If there are no possible
373. ry Perform the Powertrain Verification Test Ver 5 gt GoTo 2 Note For this test to be valid the thermostat must be operating correctly Note This test works best if performed on a cold engine cold soak Turn Ignition On With the DRB in sensors read the Eng Coolant Tmp Deg value If the engine was allowed to sit overnight cold soak the temperature value should be a sensible value that is somewhere close to the surrounding temperature ambient temperature Note If engine coolant temperature is above 82 180 F allow the engine to cool until 65 C 150 is reached Start the Engine During engine warm up monitor the Eng Coolant Tmp Deg value The temp deg value change should be a smooth transition from start up to normal operating temp 82 180 F The value should reach at least 82 C 180 F Was the Eng Coolant Tmp Deg value increase a smooth transition and did it reach at least 180 Yes Test Complete No Replace the Engine Coolant Temperature Sensor Perform the Powertrain Verification Test Ver 5 265 DRIVEABILITY Symptom CHECKING THE INTAKE AIR TEMPERATURE SENSOR POSSIBLE CAUSES IAT SENSOR OUT OF CALIBRATION WIRING HARNESS INTERMITTENT APPLICABILITY Turn ignition on All Note Do not allow more than 5 minutes delay between the next steps With the DRB in Sensors read the Intake Air Temp Deg value and record the reading Turn ig
374. s Repair Circuit as necessary where wiggling caused clicking to stop or become irregular Perform the Powertrain Verification Test Ver 2 Test Complete 210 DRIVEABILITY P1282 F UEL PUMP RELAY CONTROL CIRCUIT Continued ACTION APPLICABILITY Turn ignition off Remove the fuel pump relay from the PDC Note Check connectors Clean repair as necessary Turn ignition on Using a voltmeter measure the fused ignition switch output circuit at the fuel pump relay connector Is the voltage above 10 0 volts Yes gt GoTo 5 No Repair the open fused ignition switch output circuit NOTE Check for a blown fuse Perform the Powertrain Verification Test Ver 2 Turn ignition off Remove the fuel pump relay from the PDC Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between terminals 1 85 and 2 86 of the fuel pump relay Is the resistance between 50 and 90 ohms Yes gt GoTo 6 No Replace the fuel pump relay Perform the Powertrain Verification Test Ver 2 Repair the open fuel pump relay control circuit Perform the Powertrain Verification Test Ver 2 Turn ignition off Remove the fuel pump relay from the PDC Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between the fuel pump relay control circuit and ground Is the resistance below 5
375. s Repair as necessary Perform Powertrain Verification Test VER 5 gt GoTo 3 77 DRIVEABILITY 0121 5 VOLTAGE DOES NOT AGREE WITH MAP Continued ACTION APPLICABILITY Turn the ignition on All Using the DRB monitor the MAP sensor voltage Start the engine and allow it to idle Did the MAP sensor voltage drop from above 3 5 volts to below 2 0 volts Inspect the MAP sensor vacuum port for any blockage If replace the MAP sensor Perform Powertrain Verification Test VER 5A GoTo 4 Check the throttle plate and linkage for a binding condition Disconnect the TP sensor Inspect TP sensor wire colors for the correct cavities Note Check connectors Clean repair as necessary Were any proplems found Yes Repair as necessary Perform Powertrain Verification Test VER 5 No gt GoTo 5 Ignition On Engine Not Running With the DRBIII read the TPS voltage While monitoring the DRBIII slowly open and close the Throttle 15 the voltage change smooth Yes gt GoTo 6 No Replace the Throttle Position Sensor Perform Powertrain Verification Test VER 5 Turn the ignition off Disconnect the TP sensor harness connector Turn the ignition on Turn the ignition off With the DRB read the Throttle Position Sensor voltage 15 the voltage above 1 0 volt Yes Replace the Throttle Position Sensor Perform the Powertrain Verification Test Ver 5 No gt GoTo 7 I
376. s the resistance below 5 0 ohms Yes gt GoTo 21 Repair the open IAC Driver Circuit Perform the Powertrain Verification Test Ver 5 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Ignition Off Inspect the Wiring and Connectors from the IAC motor to the PCM Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 5 gt GoTo 23 201 P0505 IDLE AIR CONTROL MOTOR CIRCUITS Continued ACTION APPLICABILITY Start engine All With the in Systems Test perform the IAC Wiggle Test Note The idle speed should raise and lower with the display Wiggle the Wiring Harness from the IAC Motor to the PCM Observe for the Motor to stop operating Did the IAC Motor stop operating at any time Yes Repair the Harness or Connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 202 DRIVEABILITY Symptom P0551 POWER STEERING SWITCH FAILURE When Monitored and Set Condition P0551 POWER STEERING SWITCH FAILURE When Monitored With the ignition key on and engine running Set Condition With the vehicle above 40 mph for over 30 seconds the power steering pressure switch remains open POSSIBLE CAUSES WIRING HARNESS IN
377. sary Perform the Powertrain Verification Test Ver 5 Test Complete Turn ignition off All Connect the DRBIII lab scope to the CMP signal circuit For best results backprobe at the PCM using Miller special tool 6801 Warning Keep clear of the engine s moving parts Start the engine Observe the lab scope screen while wiggling the wiring harness and connectors Were there any irregularities in the lab scope pattern Yes gt Check harness and connectors carefully If OK replace the Camshaft Position Sensor Perform the Powertrain Verification Test Ver 5 GoTo 14 Turn ignition off Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Make sure the Camshaft Position Sensor and or the Crankshaft Position Sensor is tight Note Refer to any technical service bulletins that may apply Were any problems found Yes Repair as necessary Perform the Powertrain Verification Test Ver 5 gt GoTo 15 Turn ignition off Connect the DRBIII lab scope to the CKP signal circuit For best results backprobe at the PCM using Miller special tool 6801 Warning Keep clear of the engine s moving parts Start the engine Observe the lab scope screen while wiggling the wiring harness and connectors Were there any irregularities in the lab scope pattern
378. se Perform Powertrain Verification Test VER 1A gt GoTo 15 Turn ignition off All Disconnect the Auto Shutdown Relay Disconnect all Oxygen Sensor connectors Disconnect the ignition coil connectors one at a time With an Ohmmeter measure the ASD Relay Output Circuit for resistance to ground Did the resistance go from below to above 5 0 ohms when any of the ignition coils was disconnected Yes Replace Ignition Coil that caused the resistance to go above 5 0 ohms Replace F use Perform Powertrain Verification Test VER 1A GoTo 16 If there are no potential causes remaining the ASD Relay Output circuit is assumed to be shorted to ground View repair options Repair Repair ASD Relay Output Circuit for Harness short to ground Replace Fuse Perform Powertrain Verification Test VER 1A Turn ignition off Remove the Fuse in the PDC that supplies Fused B to PCM Cavity A22 Disconnect the Auto Shutdown Relay Disconnect the Powertrain Control Module Connector With an Ohmmeter measure the Fused Circuit PCM Connector to ground Is the resistance below 5 0 ohms Yes Repair the Fused Circuit for a short to ground Replace F use Perform Powertrain Verification Test VER 1A No Test Complete 310 STARTING Symptom START AND STALL CONDITION POSSIBLE CAUSES FUEL FILTER PRESSURE REGULATOR HIGH FUEL PUMP CAPACITY VOLUME OUT OF SPECS FUEL SYSTEM DISABLED BY VTSS SKIM OTHER
379. sed Ignition in the PCM Connector Is the test light illuminated and bright Yes gt GoTo 4 No Repair the open or high resistance F used I Switch Output Circuit between PCM amp Ignition Switch Perform the Powertrain Verification Test Ver 1 38 COMMUNICATION P1695 NO CCD 1850 MESSAGE FROM BODY CONTROL MODULE Continued APPLICABILITY Turn the Ignition Off All Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Use 12 volt test light in the following step Connect the test light to Ground Probe the Circuit in the PCM Connector Is the test light illuminated and bright Repair the fused B circuit for High resistance If open circuit PCM will show RESPONSE Perform Powertrain Verification Test VER 1A Yes gt GoTo 5 Turn ignition off Disconnect the Powertrain Control Module Connector Note Check connectors Clean repair as necessary Usea 12 volt test light in the following step Connect 12V test light to B Probe the Ground Circuits one at time in the PCM Connector Was the light illuminated and bright in each circuit Yes gt GoTo 6 Repair the ground s for an open or high resistance at the Powertrain Control Module Perform the Powertrain Verification Test Ver 1 With the DRB read PCM Diagnostic Trouble Codes This is to ensure power and grounds to the PCM are operati
380. set engine speed to 1600 RPM With DRB read Target Charging and Charging voltage Compare the two readings 15 there more than 1 0 volt difference Yes gt GoTo 6 No Test Complete Ignition On Engine Not Running With the DRB actuate the Generator Field Using a Voltmeter measure the voltage at both Generator Field Terminals Is the voltage below 3 0 volts at either Terminal Yes gt GoTo 7 No Test Complete Ignition On Engine Not Running Record all DTC s and freeze frame data now erase Codes Carefully inspect all Connectors for corrosion or spread Terminals before continuing With the DRB actuate the Generator Field Driver Circuit Backprobe the ASD Relay Output Circuit at back of Generator Is the voltage above 10 0 volts Yes gt GoTo 8 No the open ASD Relay Output Circuit Perform the Powertrain Verification Test Ver 3 25 CHARGING P1682 CHARGING SYSTEM VOLTAGE TOO LOW Continued ACTION APPLICABILITY Turn ignition off Disconnect the PCM Connectors Disconnect the Generator Field harness connector Using an Ohmmeter measure the Generator Field Driver Circuit from PCM Connector to ground Is the resistance below 5 0 ohms Yes Repair the Generator Field Driver Circuit shorted to ground Perform the Powertrain Verification Test Ver 3 No GoTo 9 Turn ignition off All Disconnect ASD Relay Connector Note Check connectors Clean repair as necessary
381. sing a Voltmeter measure voltage between the Generator B Terminal and the Battery Post Caution Ensure all wires are clear of the engine s moving parts Start engine 15 the voltage above 0 4 volt Yes Repair the B Circuit for high resistance between the Generator and Battery Perform the Powertrain Verification Test Ver 3 GoTo 6 Start engine Warm the engine to operating temperature Caution Ensure all wires are clear of the engine s moving parts Using a Voltmeter measure voltage between the Generator case and Battery Post 15 the voltage above 0 1 volt Yes gt Repair Generator Ground for high resistance Generator Case to Battery side Perform the Powertrain Verification Test Ver 3 GoTo 7 Ignition On Engine Not Running With the DRB read the Battery voltage and record the results Using a Voltmeter measure Battery voltage B to B Terminal and record the results Compare the two voltage readings 15 the voltage difference less than one volt Yes gt Test Complete No GoTo 8 Ignition On Engine Not Running With the DRB read the Battery voltage and record the results Turn Ignition off Disconnect the PCM Note Check connectors Clean repair as necessary Turn Ignition on with the engine off Using a Voltmeter measure the Fused B at PCM Connector 15 the voltage within one volt of the DRB recorded reading Yes gt GoTo 9 No Repair the B Circuit
382. sistance below 5 0 ohms Yes Repair the IAC Driver Circuits shorted together Perform the Powertrain Verification Test Ver 5 No gt GoTo 9 If there are no possible causes remaining replace the Idle Air Control Motor View repair options Repair Replace the Idle Air Control Motor Perform Powertrain Verification Test VER 5A Ignition Off Disconnect the IAC Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance of the 4 Driver Circuit from the Motor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 11 No Repair the open IAC Driver Circuit Perform the Powertrain Verification Test Ver 5 Ignition Off Disconnect Motor Connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an Ohmmeter measure the resistance between AC Driver 4 and ground 15 the resistance below 5 0 ohms Yes Repair the IAC Driver Circuit shorted to ground Perform the Powertrain Verification Test Ver 5 GoTo 12 199 P0505 IDLE AIR CONTROL MOTOR CIRCUITS Continued APPLICABILITY If there no possible causes remaining replace the Powertrain Control Module All View repair options Repair Replace the Powertrain Control Module Perfor
383. sition sensor Inspect the tone wheel flex plate for physical damage Make sure that it turns when the engine is cranked 15 the tone wheel pulse ring free from defects Yes GoTo 16 No tone wheel flex plate as necessary If there no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Using an ohmmeter measure the resistance between the Sensor Ground circuit in the CKP Sensor connector and Ground 15 the resistance below 5 0 ohms Yes gt GoTo 18 No gt GoTo 20 Turn ignition off Disconnect and remove the crankshaft position sensor Inspect the tone wheel flex plate for physical damage Make sure that it turns when the engine is cranked 15 the tone wheel pulse ring free from defects Yes gt GoTo 19 No tone wheel flex plate as necessary Turn ignition off If there no possible causes remaining replace the Crankshaft Position Sensor View repair options Repair Replace the Crankshaft Position Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the Crankshaft Position Sensor connector 138 20 CRANK REFERENCE SIGNAL Continued ACTION APPLICABILITY Turn ignition off Disconnect and remove the crankshaft positi
384. sor harness connector Using an Ohmmeter measure the resistance between the Sensor Ground circuit and ground at the IAT Sensor connector Is the resistance below 5 0 ohms Repair the open Sensor Ground circuit Perform the Powertrain Verification Test Ver 5 Yes gt GoTo 5 If there are no possible causes remaining replace the PCM View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 Turn ignition off Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 Test Complete Turn the ignition off All Disconnect the IAT Sensor harness connector Disconnect the PCM harness connectors Using Ohmmeter measure the resistance of the IAT Sensor Signal circuit from the IAT Sensor connector to the PCM connector Is the resistance below 5 0 ohms Repair the open circuit Perform the Powertrain Verification Test Ver 5 Yes gt GoTo 6 72 D
385. spect the Fuel Inlet Strainer 15 the Fuel Inlet Strainer plugged Yes Replace the Fuel Pump Inlet Strainer gt GoTo 16 If there are no possible causes remaining replace the Fuel Pump Module View repair options Repair Replace the Fuel Pump Module 301 STARTING ENGINE CRANKS DOES NOT START Continued ACTION APPLICABILITY Turn ignition off All Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Disconnect the fuel supply line at the fuel rail Connect fuel line adapter 6539 5 16 or 6631 3 8 to the disconnected fuel supply line Insert the other end of the adapter into a graduated container Caution Do not operate the fuel pump for more than 7 seconds in the next step Fuel pump module reservoir may run empty and damage to the fuel pump will result Note Specification A good fuel pump will deliver at least 1 4 liter 1 2 pint of fuel in 7 seconds With the DRB actuate the ASD Fuel System test for 7 seconds 15 the fuel pump capacity within specification Yes gt Test Complete Check for a kinked damaged fuel supply line between the fuel tank and fuel rail If OK replace the fuel pump module Caution Stop All Actuations Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector tha
386. st be within specifications POWER BRAKE BOOSTER internal vacuum leaks FUEL must be free of contamination FUEL INJECTOR plugged or restricted injector control wire not connected to correct injector Are there any engine mechanical problems Yes Repair as necessary Perform the FUEL MISFIRE VERIFICATION TEST No gt GoTo 7 With the DRB read the FREEZE FRAME DATA All Use the FREEZE FRAME DATA and attempt to determine the cause of the Misfire DTC Inthe FREEZE FRAME DATA isthe engine RPM over 3000 and the operating temp 132 CYLINDER MIS FIRE Continued ACTION APPLICABILITY With the DRB read the FREEZE FRAME DATA All Use the FREEZE FRAME DATA and attempt to determine the cause of the Misfire DTC In the FREEZE FRAME DATA is the LOAD VALUE over 50 and the operating temp normal Yes Check secondary ignition compression and cylinder leakage Perform the FUEL MISFIRE VERIFICATION TEST No GoTo 8 Note Anything that affects the speed of the crankshaft can cause a misfire DTC The following are other possible causes for mis fire Injector harness connectors secondary ignition problem mechanical engine problem PCM power grounds irregular cam and crank signal plugged injectors restricted exhaust intake restriction damaged trigger wheel contaminated fuel or vacuum leak Weak valve springs carbon deposits on valves or accessory
387. stance below 5 0 ohms Yes Replace the BCM Perform Powertrain Verification Test VER 1A No Repair the open PCI Bus circuit Perform Powertrain Verification Test VER 1A Turn ignition off Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 1A No Test Complete 40 COMMUNICATION Symptom P1696 PCM FAILURE EEPROM WRITE DENIED When Monitored and Set Condition P1696 PCM FAILURE EEPROM WRITE DENIED When Monitored Ignition key on Continuous Set Condition An attempt to program write to the internal EEPROM failed Also checks at powerdown POSSIBLE CAUSES COMPARE SRI MILEAGE WITH ODOMETER DRB DISPLAYS SRI MILEAGE INVALID DRB DISPLAYS WRITE REFUSED 2ND TIME ACTION APPLICABILITY With the DRB perform the SRI Memory Test Does the DRB display Write Refused Yes gt GoTo 2 No gt GoTo 3 With the DRB perform the SRI Memory Test a second time Note Retest the SRI Memory two more times Does the DRB display Write Refused again Yes Replace the Powertrain Control Module Perform Powertrain Verification Test VER 1
388. t Complete 296 STARTING Symptom ENGINE CRANKS DOES NOT START POSSIBLE CAUSES FUEL FILTER PRESSURE REGULATOR HIGH FUEL FILTER PRESSURE REGULATOR DEFECTIVE HIGH FUEL PUMP CAPACITY VOLUME OUT OF SPECS FUEL SYSTEM DISABLED BY VTSS SKIM POWERTRAIN FUSES OPEN SECONDARY INDICATORS PRESENT ENGINE MECHANICAL PROBLEM HIGH RESISTANCE IN THE FUEL PUMP RELAY OUTPUT CIRCUIT FUEL PUMP RELAY OUTPUT CIRCUIT OPEN FUSED B CIRCUIT TO FUEL PUMP RELAY OPEN HIGH RESISTANCE OPEN HIGH RESISTANCE IN THE FUEL PUMP GROUND CIRCUIT FUEL PUMP INLET STRAINER PLUGGED HIGH RESISTANCE IN THE FUEL PUMP GROUND CIRCUIT FUEL PUMP MODULE FUEL PUMP RELAY KINKED RESTRICTED FUEL SUPPLY LINE FUEL PUMP MODULE J UMPER HARNESS DEFECTIVE NO CKP SENSOR SIGNAL WHEN CRANKING ENGINE FUEL PUMP MODULE NO CMP SENSOR SIGNAL WHEN CRANKING ENGINE CKP amp CMP SENSORS OUT OF SYNC 297 STARTING ENGINE CRANKS DOES NOT START Continued APPLICABILITY Note The following list of items should be checked before continuing with any no start tests The battery must be fully charged and in good condition A defective battery may produce invalid test results the battery is low charge the battery and then attempt to start the vehicle by cranking the engine for 15 seconds 3 consecutive times sure the PCM communicates with the DRBIII and that there no DTC s stored in the PCM memory If the PCM reports Response condition refe
389. t Tmp Deg value increase a smooth transition and did it reach at least 180 Yes gt GoTo 7 Replace the Engine Coolant Temperature Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off Connect a Vacuum Gauge to a Manifold Vacuum source Start the engine Allow the engine to idle Note If engine will not idle maintain a constant RPM above idle Using the DRB in Sensors read the MAP Sensor vacuum value 15 the DRB reading within 1 of the Vacuum Gauge reading Yes gt GoTo 8 No Replace the MAP Sensor Perform Powertrain Verification Test VER 5A 108 0172 1 1 FUEL SYSTEM RICH Continued ACTION APPLICABILITY Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Turn ignition on With the DRB actuate the ASD Fuel System test Using a 12 volt test light connected to ground check the fuel pump relay output circuit A141 at connector C308 Does the test light illuminate brightly Yes gt GoTo 9 No Repair the high resistance in the fuel pump relay ouput circuit Check wire from PDC to fuel pump module connector Also check for bad relay Perform Powertrain Verification Test VER 1A Caution Stop All Actua
390. t leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Using a test light connected to B check the fuel pump ground circuit Z1 at connector C308 Does the test light illuminate brightly Yes gt GoTo 19 No Repair open high resistance in the fuel pump ground circuit Perform Powertrain Verification Test VER 1 Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Turn ignition on With the DRB actuate the ASD Fuel System test Using a 12 volt test light connected to ground check the fuel pump relay output circuit A141 at connector C308 Does the test light illuminate brightly Yes gt GoTo 20 No GoTo 22 Caution Stop All Actuations 302 STARTING ENGINE CRANKS DOES NOT START Continued ACTION APPLICABILITY Turn the ignition off All Remove the fuel tank using the removal and installation procedure Inspect the wiring harness that leads from under the rear seat to the Fuel Pump Module Look for any signs of chafing mis routing Use an ohmmeter to check the continuity of the wiring between the Fuel Pump Module connector and connector C308 15 the
391. tage is below 0 156 volts for 28 seconds after starting engine 0137 1 2 O2 SENSOR SHORTED TO GROUND When Monitored At a cold start engine coolant below 98 F ambient battery sensor reading within 27 F and engine coolant temperature above 170 F on the previous key off Set Condition oxygen sensor signal voltage is below 0 156 volts for 28 seconds after starting engine 0151 2 1 02 SENSOR SHORTED TO GROUND When Monitored At a cold start engine coolant below 98 F ambient battery sensor reading within 27 F and engine coolant temperature above 170 F on the previous key off Set Condition oxygen sensor signal voltage is below 0 156 volts for 28 seconds after starting engine 0157 2 2 O2 SENSOR SHORTED TO GROUND When Monitored At a cold start engine coolant below 98 F ambient battery sensor reading within 27 F and engine coolant temperature above 170 F on the previous key off Set Condition The oxygen sensor signal voltage is below 0 156 volts for 28 seconds after starting engine POSSIBLE CAUSES 025 SIGNAL CIRCUIT SHORT TO GROUND 025 SIGNAL CIRCUIT SHORT TO SENSOR GROUND CIRCUIT WIRING HARNESS INTERMITTENT 89 DRIVEABILITY 0131 1 1 02 SENSOR SHORTED TO GROUND Continued POSSIBLE CAUSES 02 SENSOR PCM APPLICABILITY Turn Ignition On With the DRB read the 5 15 the Global Good Trip Counter displayed and equal to zero Yes gt GoTo 2 No gt GoTo 6 T
392. te Ensure that a VIN has been programed into the PCM If a VIN is not displayed attempt to program the PCM with the vehicle VIN before continuing Turn ignition on Using the select E ngine system from the main menu Display and record the Vehicle dentification Number VIN Does the VIN recorded from the PCM match the VIN of the vehicle Yes Replace the Sentry Key Immobilizer Module Perform the SKIS Verification Test No Replace the Powertrain Control Module PCM Program the correct VIN into the new PCM and retest Perform the SKIS Verification Test 325 VEHICLE THEFT SECURITY VIN MISMATCH Continued APPLICABILITY Turn ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the SKIS Verification Test No Test Complete 326 VERIFICATION TESTS Verification Tests 42LE TRANSMISSION VERIFICATION TEST VER 1 APPLICABILITY 1 Connect the to the Data Link Connector DLC All 2 Reconnect any disconnected components 3 With the DRBII erase all Transmission DTC s also erase the DTC 0700 which
393. tem Tests perform the Minimum Air Flow function Is the engine RPM between 550 and 1300 Yes Test Complete gt GoTo 4 Caution Stop all actuations Turn engine off 261 DRIVEABILITY CHECKING MINIMUM IDLE AIRFLOW Continued APPLICABILITY Turn ignition off All Remove the Throttle Body Warning Clean throttle body in a well ventilated area Wear rubber butyl gloves Do not let cleaner come in contact with eyes or skin Avoid injesting cleaner Wash thoroughly after using cleaner While holding the throttle open spray the entire throttle body bore and the manifold side of the throttle plate with Mopar Parts Cleaner Clean the IAC motor passage also Use compressed air to dry the throttle body Reinstall the throttle body Note Miller Tool 6457 0 125 air metering orifice still attached to the purge nipple on the throttle body Start the engine Ensure that all accessories are off Allow the engine to reach operating temperature above 82 C 180 F With the DRB in System Tests perform the Minimum Air Flow function Is the engine RPM between 550 and 1300 Yes Repair complete Perform the Powertrain Verification Test Ver 5 No Replace the Throttle Body Perform the Powertrain Verification Test Ver 5 Caution Stop all actuations Turn engine off 262 Symptom CHECKING RADIATOR FAN OPERATION WITH NO DTC S POSSIBLE CAUS
394. the DRBIII Inputs Outputs monitor the Brake Lamp Switch state While observing the display press the Brake Pedal several times Does the 111 show Brake Switch pressed and released Yes The Brake Lamp Switch is operating properly at this time Perform the Appropriate Verification Test No gt GoTo 2 Turn ignition off Using 12 test light check the fused circuit at the brake switch Is the light illuminated and bright Yes gt GoTo 4 No the fused circuit for an open or high resistance Perform the Powertrain Verification Test Ver 2 Turn ignition off All Brake pedal must be depressed in the next step Using a 12 volt test light check the brake lamp switch output at the brake switch Is the light illuminated and bright Yes gt Test Complete No Replace or adjust the brake switch Perform the Powertrain Verification Test Ver 2 2 Note Repair all Speed Control Related DTC s before continuing SPEED CONTROL Start engine Turn S C to On Off switch to the On position Usinga 12 volt test light backprobe the S C brake switch output circuit at the brake switch connector while depressing the brake pedal several times Did the light turn on when the pedal was released and off when the pedal was pressed Yes gt GoTo 3 No Replace adjust the brake switch Perform the Powertrain Verification Test Ver 4 250 Symptom C
395. the Fuel Pump Relay View repair options Repair Replace the fuel pump relay Perform Powertrain Verification Test VER 1 303 STARTING Symptom NO CRANK CONDITION POSSIBLE CAUSES STARTER RELAY OUTPUT CIRCUIT OPEN STARTER RELAY BATTERY CIRCUIT RESISTANCE TOO HIGH STARTER REPAIR MECHANICAL CONDITION FUSED B CIRCUIT OPEN IGNITION SWITCH OUTPUT CIRCUIT OPEN STARTER RELAY CONTROL CIRCUIT OPEN PCM DEFECTIVE STARTER RELAY CONTROL CIRCUIT APPLICABILITY Turn ignition off All Disconnect the Starter Relay Disconnect the Starter Relay Output Wire from the Starter Solenoid Using an ohmmeter measure the resistance of the Starter Relay Output Circuit from the Relay to the Solenoid Connector Is the resistance below 5 0 ohms Yes gt GoTo 2 No Repair open Starter Relay Output Ckt Perform the Powertrain Verification Test Ver 1 Turn the ignition on With the DRB III monitor the Park Neutral Switch input state While moving gear selector through all gear positions Park to 1 and back to Park watch III display Did the DRB 111 display show P N in the correct gear positions Yes gt GoTo 3 No Refer tosymptom CHECKING PARK NETURAL SWITCH OP ERATION in the TRANSMISSION category Turn ignition off Check the Battery Cables for high resistance Use service procedure Did either Battery Circuit have a voltage drop greater than 0 2 volt Yes Repair the Battery Cir
396. the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform Powertrain Verification Test VER 5 At this time the conditions required to set the DTC are not present Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set conditions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB s that may apply Perform a wiggle test of the LDP wiring while the is actuated with the DRB Listen for the LDP to quit actuating Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 246 Symptom P1496 5 VOLT SUPPLY OUTPUT TOO LOW When Monitored and Set Condition P1496 5 VOLT SUPPLY OUTPUT TOO LOW When Monitored With the ignition on Set Condition The 5 volt supply to the sensors 15 below 3 5 volts for 4 seconds POSSIBLE CAUSES 5 VOLT SUPPLY SHORTED TO GROUND EGR SOLENOID A C PRESSURE SENSOR MAP SENSOR TPS WIRING HARNESS INTERMITTENT PROBLEM PCM ACTION APPLICABILITY Turn
397. the engine to idle Note If engine will not idle maintain a constant RPM above idle Using the DRB in Sensors read the MAP Sensor vacuum value 15 the DRB reading within 1 of the Vacuum Gauge reading Yes gt GoTo 17 No Replace the MAP Sensor Perform Powertrain Verification Test VER 5A 104 DRIVEABILITY 0171 1 1 FUEL SYSTEM LEAN Continued ACTION Check for any of the following conditions mechanical problems ENGINE VACUUM must be at least 13 inches in neutral ENGINE VALVE TIMING must be within specifications ENGINE COMPRESSION must be within specifications ENGINE EXHAUST SYSTEM must ke free of any restrictions or leaks ENGINE PCV SYSTEM must flow freely TORQUE CONVERTER STALL SPEED must be within specifications POWER BRAKE BOOSTER no internal vacuum leaks FUEL must be free of contamination FUEL INJECTOR plugged or restricted injector control wire not connected to correct injector Are there any engine mechanical problems Yes Repair as necessary Perform the FUEL MISFIRE VERIFICATION TEST No GoTo 18 Turn ignition off Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released Disconnect the fuel supply line at the fuel rail Connect fuel line adapter 6539 5 16 or 6631 3 8 to the disconnected fuel supply line Insert the other
398. the short to voltage Perform Powertrain Verification Test VER 5A No gt GoTo 5 Turn Ignition Off Disconnect the 025 connector Disconnect the PCM connectors Using an Ohmmeter measure the resistance of the O2S Signal circuit between the 025 connector and the PCM connector 15 the resistance below 5 0 ohms No Repair the open circuit Perform Powertrain Verification Test VER 5A Yes gt GoTo 6 If there are no possible causes remaining replace the PCM View repair options Repair Replace the PCM Perform Powertrain Verification Test VER 5A Turn Ignition Off All Disconnect the 025 connector Start engine Allow engine to idle 93 DRIVEABILITY 0132 1 1 02 SENSOR SHORTED TO VOLTAGE Continued APPLICABILITY Turn the ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 5A No Test Complete 94 Symptom List 133 1 1 2 SENSOR SLOW RE
399. tinued APPLICABILITY Turn ignition off All Disconnect the vacuum hoses at the Proportional Purge Solenoid Using a hand vacuum pump apply 10 inches of vacuum to the Proportional Purge Solenoid vacuum source port component side Does the Proportional Purge Solenoid hold vacuum Yes gt GoTo 6 No Replace the Proportional Purge Solenoid Perform Powertrain Verification Test VER 5A Turn ignition off Disconnect the vacuum hoses at the Proportional Purge Solenoid Using a hand vacuum pump apply 10 inches of vacuum to the Proportional Purge Solenoid vacuum source port component side With the DRB actuate the EVAP Purge Solenoid and observe the vacuum gauge Does the vacuum drop when the solenoid is actuated Yes gt Test Complete No Replace the Proportional Purge Solenoid Perform Powertrain Verification Test VER 5A 254 DRIVEABILITY Symptom CHECKING FUEL DELIVERY POSSIBLE CAUSES FUEL FILTER PRESSURE REGULATOR HIGH FUEL PUMP CAPACITY VOLUME OUT OF SPECS HIGH RESISTANCE IN THE FUEL PUMP RELAY OUTPUT CIRCUIT FUEL PUMP INLET STRAINER PLUGGED HIGH RESISTANCE IN THE FUEL PUMP GROUND CIRCUIT FUEL PUMP MODULE KINKED RESTRICTED FUEL SUPPLY LINE ACTION APPLICABILITY Turn ignition off All Warning The fuel system is under a constant pressure even with the engine off Before testing or servicing any fuel system hose fitting or line the fuel system pressure must be released
400. tion Test Ver 2 Turn the ignition off Disconnect the PCM harness connector Turn the ignition on Connect a jumper wire to the Radiator Fan Relay Control Circuit at PCM Momentarily connect the other end of the jumper wire to a good ground Did the Radiator Fan Relay actuate Yes gt GoTo 8 No Replace the Radiator Fan Perform the Powertrain Verification Test Ver 2 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 2 Turn the ignition off All Remove the Radiator Fan Relay Disconnect the PCM harness connector Measure the resistance between the Radiator Fan Relay Control circuit and ground Is the resistance below 5 0 ohms Yes Repair the Radiator Fan Relay Control Circuit for a short to ground Perform the Powertrain Verification Test Ver 2 GoTo 7 242 DRIVEABILITY Symptom P1494 LEAK DETECT PUMP SW OR MECHANICAL FAULT When Monitored and Set Condition 1494 DETECT PUMP SW MECHANICAL FAULT When Monitored Immediately after a cold start with battery ambient temperature between 4 C 40 F and 32 C 90 F and coolant temperature within 12 C 10 F of battery ambient Set Condition The state of the switch does not change when the solenoid is energized POSSIBLE CAUSES WIRING HARNESS INTERMITTENT LDP SWITCH SENSE CIRCUIT OPEN LDP SWITCH SENSE
401. tion Test Ver 5 No Test Complete 204 Symptom 700 CONTROLLER DTC PRESENT POSSIBLE CAUSES EATX CONTROLLER DTC PRESENT APPLICABILITY Note This PCM trouble code indicates that there is a DTC stored in the All Transmission Control Module TCM With the DRBIII erase DTC stored in the PCM after making the transmission repair Note Erase P0700 code in the PCM to turn the MIL light off after making transmission repairs View repair options Repair With the DRBIII read and repair the stored 5 in the Transmission Control Module Perform the 42LE Transmission Verification Test Ver 1 205 Symptom List 703 SWITCH SENSE CIRCUIT BRAKE SWITCH SENSE STATUS DOES NOT CHANGE ON DRB ad Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be PO703 BRAKE SWITCH SENSE CIRCUIT When Monitored and Set Condition 703 SWITCH SENSE CIRCUIT When Monitored With the engine running The PCM expects the signal to be high for 16 cycles while it monitors the brake switch signal during accel and decel modes Set Condition After the vehicle speed increases the PCM must accumulate 6 seconds while delta throttle voltage is above 0 02 volts The count is reset to zero whenever the brake switch indicates a low signal POSSIBLE CAUSES BRAKE SWITC
402. tions Check for any of the following conditions mechanical problems All ENGINE VACUUM must be at least 13 inches in neutral ENGINE VALVE TIMING must be within specifications ENGINE COMPRESSION must be within specifications ENGINE EXHAUST SYSTEM must ke free of any restrictions or leaks ENGINE PCV SYSTEM must flow freely TORQUE CONVERTER STALL SPEED must be within specifications POWER BRAKE BOOSTER no internal vacuum leaks FUEL must be free of contamination FUEL INJECTOR plugged or restricted injector control wire not connected to correct injector Are there any engine mechanical problems Yes Repair as necessary Perform the FUEL MISFIRE VERIFICATION TEST No GoTo 10 Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Using a test light connected to B check the fuel pump ground circuit Z1 at connector C308 Does the test light illuminate brightly Yes gt GoTo 11 No Repair the high resistance the fuel pump ground circuit Perform Powertrain Verification Test VER 1 Note Re connect connector C308 before performing the next test Visually inspect the fuel supply line from the fuel tank to the fuel rail Look for any signs of physical damage that may restrict the
403. tions such as VSS MAP ECT and Load Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any technical service bulletins that may apply Perform wiggletest of the injector wiring whilethe engineis running Listen for the engine to miss or stall Also watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 120 Symptom 0204 1 NJ 4 CONTROL CIRCUIT When Monitored and Set Condition P0204 INJ ECTOR 4 CONTROL CIRCUIT When Monitored With battery voltage greater than 10 4 volts the auto shutdown relay energized injector pulse width less than 10ms and engine speed less than 3000 rpm Set Condition This trouble code takes 64 to 10 0 seconds to set when no inductive kick is sensed 18ms after injector turn off and with no other injectors on POSSIBLE CAUSES OPEN HIGH RESISTANCE IN THE ASD RELAY OUTPUT CIRCUIT FUEL INJ ECTOR WIRING HARNESS INTERMITTENT FUEL INJ ECTOR NO 4 DRIVER CIRCUIT OPEN FUEL INJ ECTOR NO 4 DRIVER CIRCUIT SHORTED TO GROUND POWERTRAIN CONTROL MODULE INJ ECTOR DRIVER APPLICABILITY Turn ignition on All With the
404. to any Technical Service Bulletins TSB that may apply Were any problems found Yes Repair wiring harness connectors as necessary Perform the Powertrain Verification Test Ver 5 No Test Complete 21 CHARGING Symptom P1594 CHARGING SYSTEM VOLTAGE TOO HIGH When Monitored and Set Condition P1594 CHARGING SYSTEM VOLTAGE TOO HIGH When Monitored With the ignition key on the engine speed greater than 380 RPM Set Condition When the PCM regulates the generator field and there are no detected field problems but the voltage output does not decrease POSSIBLE CAUSES GENERATOR FIELD DRIVER CIRCUIT SHORTED TO GROUND GENERATOR FIELD SHORTED TO GROUND PCM BATTERY TEMPERATURE POWERTRAIN CONTROL MODULE BATTERY VOLTAGE POWERTRAIN CONTROL MODULE GENERATOR RESISTANCE ACTION APPLICABILITY Ignition On Engine Not Running All With DRB actuate the Generator Field Driver With 12 volt test light backprobe the Generator Field Driver Circuit in back of Generator Did the light blink Yes gt GoTo 2 No gt GoTo 5 Ignition On Engine Not Running With the DRB actuate the Generator Field Driver With DRB stop the Generator Field Driver actuation With DRB read the Target Charging voltage 15 the Target Charging voltage above 13 volts Yes gt GoTo 3 gt GoTo 4 Start the engine Manually set the engine speed to 1600 RPM With DRB read both the Battery voltage and the Target Charging
405. to idle Note If engine will not idle maintain a constant RPM above idle Using the DRB in Sensors read the MAP Sensor vacuum value 15 the DRB reading within 1 of the Vacuum Gauge reading Yes gt Test Complete No Replace the MAP Sensor Perform Powertrain Verification Test VER 5A 260 DRIVEABILITY Symptom CHECKING MINIMUM IDLE AIRFLOW POSSIBLE CAUSES THROTTLE BODY THROTTLE PLATE LINKAGE BINDING VACUUM LEAK THROTTLE BODY DIRTY APPLICABILITY Turn ignition off All Check the throttle plate and linkage for a binding condition The throttle linkage must be at idle position Ensure the throttle plate is fully closed and against it s stop Is the throttle plate and linkage free from defects Yes gt GoTo 2 No as necessary Perform the Powertrain Verification Test Ver 5 Inspect the Intake Manifold for vacuum leaks Inspect the Power Brake Booster for any vacuum leaks Inspect the PCV system for proper operation or any vacuum leaks Were any problems found Yes Repair vacuum leak as necessary Perform the Powertrain Verification Test Ver 5 No gt GoTo 3 Turn ignition off Disconnect the hose from the PCV valve and cap the nipple on the PCV valve Disconnect purge hose from the nipple on the throttle body Start the engine Ensure that all accessories are off Allow the engine to reach operating temperature above 82 C 180 F With the DRB in Sys
406. to idle for 30 seconds With the DRB read the 5 Does the DRB show change MAP from start to run Yes gt GoTo 15 No GoTo 18 Turn the ignition off Disconnect the MAP Sensor harness connector Disconnect the Powertrain Control Module harness connector Note Check connectors Clean repair as necessary Measure the resistance of the MAP Sensor 5 Volt Supply Circuit from the MAP Sensor Connector to the PCM Connector 15 the resistance below 5 0 ohms Yes gt GoTo 16 No Repair the open 5 Volt Supply Circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Remove the MAP Sensor and inspect the condition of Vacuum Port Was there a restriction Yes Remove the restriction and reinstall the MAP Sensor Perform Powertrain Verification Test VER 5A GoTo 17 If there are no possible causes remaining replace the MAP sensor View repair options Repair Replace the MAP Sensor Perform Powertrain Verification Test VER 5A Start engine With the DRB set the engine speed to 1500 RPM With the engine RPM at 1500 read MAP Sensor voltage While monitoring the voltage wiggle the Wiring from the MAP Sensor to PCM Did the engine stall or voltage become erratic Yes Repair the Wiring or Connector defect between the MAP Sensor and the PCM Perform Powertrain Test Verification VER 5A GoTo 19 Start engine While monitoring the DRB display Quickly Open and
407. trol did not engage the repair is not complete Check for TSBs that pertain to speed control problem and then if necessary return to Symptom List 9 Depress and hold the RESUME ACCEL Switch If the vehicle speed did not increase by at least 2 mph the repair is not complete Check for TSBs that pertain to speed control problem and then if necessary return to Symptom List 10 Press and hold the COAST switch The vehicle speed should decrease If it did not decrease the repair is not complete Check for TSBs that pertain to speed control problem and then if necessary return to Symptom List 11 Using caution depress and release the brake pedal If the speed control did not disengage the repair is not complete Check for TSBs that pertain to speed control problem and then if necessary return to Symptom List 12 Bring the vehicle speed back up to 35 MPH 13 Depress the RESUME ACCEL switch If the speed control did not resume the previously set speed the repair is not complete Check for TSBs that pertain to speed control problem and then if necessary return to Symptom List 14 Hold down the SET switch If the vehicle did not decelerate the repair is not complete Check for TSBs that pertain to speed control problem and then if necessary return to Symptom List 15 Ensure vehicle speed is greater than 35 mph and release the SET Switch If vehicle did not adjust and set a new vehicle speed the repair is not complete Check for TSBs
408. uel injector no 3 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance of the fuel injector no 3 driver circuit from the fuel injector no 3 electrical connector to the PCM connector Is the resistance below 5 0 ohms Yes gt GoTo 6 No Repair the open fuel injector 3 driver circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the fuel injector no 3 electrical connector Disconnect the Powertrain Control Module connectors Using an ohmmeter measure the resistance between the fuel injector no 3 driver circuit and ground B 15 the resistance below 5 0 ohms Yes Repair the injector driver circuit for a short to ground Note shorted injector driver circuit may have ruined the injector also Injector resistance should be between 10 and 16 ohms Perform the Powertrain Verification Test Ver 5 No gt GoTo 7 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the Powertrain Control Module Perform the Powertrain Verification Test Ver 5 119 DRIVEABILITY P0203 INJ ECTOR 3 CONTROL CIRCUIT Continued APPLICABILITY At this time the conditions required to set the DTC are not present All Note Use the Freeze Frame Data to help you duplicate the conditions that set the DTC Pay particular attention to the DTC set condi
409. und Did the resistance go from below 5 0 ohms to above 5 0 ohms Yes Replace the Capacitor Perform Powertrain Verification Test VER 1A No GoTo 13 Turn ignition off Disconnect the Auto Shutdown Relay Disconnect all Oxygen Sensor connectors Disconnect the Injector Connectors one at a time With an Ohmmeter measure the ASD Relay Output Circuit for resistance to ground Did the resistance go above 5 0 ohms when any of the Injector Connectors were disconnected Yes Replace the Fuel Injector that caused a change in resistance Replace F use Perform Powertrain Verification Test VER 1A Turn ignition off All Disconnect the Auto Shutdown Relay Disconnect all Oxygen Sensor connectors Disconnect the Short Runner Valve harness connector With an Ohmmeter measure the ASD Relay Output Circuit for resistance to ground Did the resistance go from below 5 0 ohms to above 5 0 ohms Yes Replace the Short Runner Valve Perform Powertrain Verification Test VER 1A GoTo 12 GoTo 14 309 STARTING NO RESPONSE FROM PCM WITH ANO START CONDITION Continued ACTION APPLICABILITY Turn ignition off Disconnect the Auto Shutdown Relay Disconnect all Oxygen Sensor connectors Disconnect the Generator With an Ohmmeter measure the ASD Relay Output Circuit for resistance to ground Did the resistance go from below 5 0 ohms to above 5 0 ohms Yes Repair Generator for a short to ground Replace F u
410. urn ignition off Disconnect the Brake Switch harness connector Disconnect the PCM harness connector Using an ohmmeter measure the resistance of the Brake Switch Sense Circuit at the Brake Switch Connector to a good ground 15 the resistance below 5 0 ohms Yes Repair the Brake Switch Sense Circuit for a short to ground Perform the Powertrain Verification Test Ver 4 No gt GoTo 5 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 4 207 Symptom List 1195 1 1 2 SENSOR SLOW DURING CATALYST MONITOR 1196 2 1 2 SENSOR SLOW DURING CATALYST MONITOR E Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will 1195 1 1 02 SENSOR SLOW DURING CATALYST MONITOR When Monitored and Set Condition 1195 1 1 2 SENSOR SLOW DURING CATALYST MONITOR When Monitored With the engine running coolant greater than 170 F open throttle steady to slightly increasing vehicle speed greater than 18 mph but less than 55 mph with a light load on the engine for a period no less than 5 minutes Set Condition The oxygen sensor signal voltage is switching from below 0 39 volt to above 0 6 volts and back fewer times than required 1196 2 1 2 SENSOR SLOW DURING CATALYST MONITOR When Monitored With the engine running coola
411. urn the ignition on With the DRB monitor the 025 Signal voltage Disconnect the O2 sensor harness connector Does the O2S sensor signal voltage read above 0 16 volts Yes Replace the O2 Sensor Perform Powertrain Verification Test VER 5A No gt GoTo 3 Turn Ignition Off Disconnect the O2S connector Disconnect the PCM connectors Using an Ohmmeter measure the resistance between the O2S Signal circuit and the O2S Sensor ground circuit at the O2S connector Is the resistance below 5 0 ohms Yes gt Repair the shorted circuits Perform Powertrain Verification Test VER 5A No gt GoTo 5 If there are no possible causes remaining replace the PCM View repair options Repair Replace the PCM Perform Powertrain Verification Test VER 5A Turn Ignition Off All Disconnect the 025 connector Disconnect the PCM connectors Using Ohmmeter measure the resistance between the 025 Signal circuit and Engine ground Is the resistance below 5 0 ohms Yes Repair the short to ground Perform Powertrain Verification Test VER 5A No gt GoTo 4 90 0131 1 1 02 SENSOR SHORTED GROUND Continued APPLICABILITY Turn the ignition off All Note Visually inspect the related wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals
412. urrent CKP State Present while cranking the engine gt GoTo 2 Yes gt GoTo 23 134 20 CRANK REFERENCE SIGNAL Continued ACTION APPLICABILITY Turn ignition off Disconnect the Crankshaft Position Sensor connector Turn ignition on Using a voltmeter measure the 8 volt supply circuit at the CKP Sensor connector Select a conclusion that best matches your voltage measurement Less than 7 5 volts GoTo 3 Between 7 5 and 8 5 volts GoTo 10 Greater than 8 5 volts Repair the 8 volt supply circuit for a short to voltage Perform the Powertrain Verification Test Ver 5 Turn ignition off All Disconnect the Crankshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using ohmmeter measure the resistance of the 8 volt supply circuit from the CKP sensor connector to the PCM connector 15 the resistance below 5 0 ohms Yes gt GoTo 4 No Repair the open 8 volt supply circuit Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect the Crankshaft Position Sensor connector Disconnect the Powertrain Control Module connectors Note Check connectors Clean repair as necessary Using an ohmmeter measure the resistance between the 8 Volt Supply circuit and ground Is the resistance below 5 0 ohms Yes Repair the 8 volt supply circuit shorted to
413. value that is somewhere close to the surrounding temperature ambient temperature Note If engine coolant temperature is above 82 C 180 F allow the engine to cool until 65 C 150 is reached Start the Engine During engine warm up monitor the Eng Coolant Tmp Deg value The temp deg value change should be a smooth transition from start up to normal operating temp 82 C 180 F The value should reach at least 82 180 F Was the Eng Coolant Tmp Deg value increase a smooth transition and did it reach at least 180 Yes gt GoTo 6 No Replace the Engine Coolant Temperature Sensor Perform the Powertrain Verification Test Ver 5 Turn ignition off Disconnect connector C308 that is located under the rear seat This is an in line connector that leads to the fuel pump module Note Check connectors It is critical that the connector is free from any signs of corrosion or deformities Clean repair as necessary Turn ignition on With the actuate the ASD Fuel System test Using a 12 volt test light connected to ground check the fuel pump relay output circuit A141 at connector C308 Does the test light illuminate brightly Yes gt GoTo 7 No Repair the high resistance in the fuel pump relay ouput circuit Check wire from PDC to fuel pump module connector Also check for bad relay Perform Powertrain Verification Test VER 1A Caution Stop All Actuations Turn ignition off Conn
414. wertrain Verification Test Ver 2 Turn Ignition Off Disconnect the PCM Connector Disconnect the A C Clutch Relay Note Check connectors Clean repair as necessary Using an Ohmmeter measure the A C Clutch Control Circuit resistance at PCM connector to ground Is the resistance below 5 0 ohms Yes Repair theA C Clutch Relay Control Circuit for short to ground Perform the Powertrain Verification Test Ver 2 No GoTo 8 If there are no possible causes remaining replace the Powertrain Control Module View repair options Repair Replace the PCM Perform the Powertrain Verification Test Ver 2 271 amp Symptom P1598 A C PRESSURE SENSOR VOLTS TOO HIGH E E When Monitored and Set Condition P1598 A C PRESSURE SENSOR VOLTS TOO HIGH When Monitored With the ignition in the engine running and the A C relay energized Set Condition A C pressure sensor signal at the PCM goes above 4 9 volts POSSIBLE CAUSES INTERMITTENT WIRING amp CONNECTORS CONDITIONS A C PRESSURE SENSOR GROUND CIRCUIT OPEN A C PRESSURE SENSOR SIGNAL CIRCUIT OPEN A C PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE A C PRESSURE SENSOR VOLTAGE lt 1 0 VOLT POWERTRAIN CONTROL MODULE ACTION APPLICABILITY Ignition On Engine Not Running All With the DRBIII read A C Pressure Sensor voltage 15 the A C Pressure Sensor voltage above 4 6 volts Yes gt GoTo 2 gt GoTo 7 Turn the ignition
415. while cranking the engine Does the display Current CKP State Present while cranking the engine Yes gt GoTo 6 Refer to Driveability Symptom P0320 NO CRANK REFERENCE SIGNAL AT PCM Perform the Powertrain Verification Test Ver 5 Turn the ignition on With the under DTC s amp Related Functions read the Secondary Indicators 298 STARTING ENGINE CRANKS DOES NOT START Continued ACTION APPLICABILITY With the DRB in Inputs Outputs read the Current CMP State while cranking the engine Does the DRB display Current CMP State Present while cranking the engine Yes gt GoTo 7 Refer to Driveability Symptom P0340 NO CAM SIGNAL AT PCM Perform the Powertrain Verification Test Ver 5 Check for any of the following conditions mechanical problems All ENGINE VALVE TIMING must be within specifications ENGINE COMPRESSION must be within specifications ENGINE EXHAUST SYSTEM must free of any restrictions or leaks FUEL must free of contamination FUEL INJECTOR plugged or restricted injector control wire not connected to correct injector Are there any engine mechanical problems Yes gt Repair as necessary Perform the Powertrain Verification Test Ver 2 No GoTo 8 Turn the ignition on With the Inputs Outputs check the Current Sync State while cranking the engine Does the show Current Sync State Out of Sync while cranking the engine
416. wiring harness Look for any chafed pierced pinched or partially broken wires Note Visually inspect the related wire harness connectors Look for broken bent pushed out or corroded terminals Note Refer to any Technical Service Bulletins TSB that may apply Perform a wiggle test on the related wiring harnesses with the engine running Watch for the Good Trip Counter to change to 0 Were any problems found Yes Repair wiring harness connectors as necessary Perform Powertrain Verification Test VER 5A No Test Complete 99 DRIVEABILITY Symptom List 171 1 1 FUEL SYSTEM LEAN 0174 2 1 FUEL SYSTEM LEAN Test Note All symptoms listed above are diagnosed using the same tests The title for the tests will be 171 1 1 FUEL SYSTEM LEAN ee When Monitored and Set Condition 0171 1 1 FUEL SYSTEM LEAN When Monitored With the engine running in closed loop mode the ambient battery temperature above 20 deg F and altitude below 8000 ft Set Condition IfthePCM multiplies short term compensation by long term adaptive and a certain percentage is exceeded for two trips a freeze frame is stored the MIL illuminates and a trouble code is stored 0174 2 1 FUEL SYSTEM LEAN When Monitored With the engine running in closed loop mode the ambient battery temperature above 20 deg F and altitude below 8000 ft Set Condition IfthePCM multiplies short term compensation by long term adaptive and
417. y Adjust the contrast to compensate for this condition GENERAL INFORMATION DISPLAY DRB REPLACEABLE LENS ENTER KEYS FUNCTION KEYS LEDs ARROW KEYS CONTRAST with YES key BACK LIGHTING Qe gt with YES key oO KEYPAD SHIFT KEY LED 80657566 4 0 DISCLAIMERS SAFETY WARNINGS 4 1 DISCLAIMERS All information illustrations and specifications contained in this manual are based on the latest information available at the time of publication The right is reserved to make changes at any time without notice 4 2 SAFETY 4 2 1 TECHNICIAN SAFETY INFORMATION WARNING ENGINES PRODUCE CARBON MONOXIDE THAT IS ODORLESS CAUSES SLOWER REACTION TIME AND CAN LEAD TO SERIOUS INJURY WHEN THE ENGINE IS OPERATING KEEP SERVICE AREAS WELL VENTILATED OR ATTACH THE VEHICLE EXHAUST SYSTEM TO THE SHOP EXHAUST REMOVAL SYSTEM Set the parking brake and block the wheels before testing or repairing the vehicle It is especially impor tant to block the wheels on front wheel drive vehicles the parking brake does not hold the drive wheels When servicing a vehicle always wear eye pro tection and remove any metal jewelry such as watchbands or bracelets that might make an inad vertent electrical contact GENERAL INFORMATION When diagnosing a powertrain system problem it is important to follow approved procedures where applicable These procedures can be found in ser vice manual procedures Followi

TABLE OF CONTENTS - DodgeIntrepid.Net

Contents

Download Pdf Manuals

Related Search

Related Contents