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D3E803D02EB-Generic_..

1. 3 5 11 Intake Air Temperature Sensor and Manifold Absolute Pressure Sensor Checking The following procedure is used to diagnose the Manifold Abso lute Pressure MAP Sensor G71 and Intake Air Temperature IAT Sensor G42 which is controlled by Engine Control Module J623 1 30 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt Yyy Generic Scan Tool Edition 07 2011 Auer a Note The Intake Air Temperature IAT Sensor G42 is part of the Manifold Absolute Pressure MAP Sensor G71 and cannot be replaced separately Use only gold plated terminals when servicing terminals in harness connector of Manifold Absolute Pressure VAP Sen sor G71 Intake Air Temperature IAT Sensor G42 Special tools and workshop equipment required multimeter Wiring diagram Test requirements The Engine Control Module ECM J623 fuse OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground GND connections between engine transmission chassis OK e Coolant Temperature at least 80 C e Ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Connect the scan tool
2. Perform the Secondary Air Injection SAI Pump Relay J299 test If the specified value was obtained Checking Ground Using a multimeter check the Secondary Air Injection SAI Pump Motor V101 electrical harness connector terminal 1 to Ground for resistance Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open or high resistance Check the electrical harness connector for damage corrosion loose or broken terminals f necessary repair the faulty wiring connection If no malfunction is found in the wiring and voltage supply was OK Replace Secondary Air Injection SAI Pump Motor V101 Erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 Perform a road test to verify repair 1 76 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer Final procedures After the repair work the work steps below must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 33 Secondary Air Injection Pump Relay Checking Special tools
3. View clean working conditions gt 1 2 Clean Working Conditions page 3 Perform a preliminary check to verify the condition gt 3 1 Preliminary Check page 8 Special tools and workshop equipment required Smoke tester 3 Diagnosis and Testing 1 23 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 EVAP and Fuel Supply System Vacuum hose and line routing diagram Note A connection to access the EVAP system can be found in the EVAP hose just below the EVAP purge solenoid Replace seals and gaskets when performing repair work Secure all hose connections using hose clamps appropriate for the model type Leak checking Using a Smoke tester check the Evaporative Emission EVAP system for leaks Note Always follow the manufacturers directions for the proper instal lation and operation of the smoke tester being used If a leak is detected Check the fuel filler cap seal for damage and for proper instal lation Replace if necessary Check all hose connections of the EVAP system and replace or repair any leaking lines Check all hose connections of the Fuel Supply system and replace or repair any leaking lines Remove the rear seat bench Refer to the Repair Manual Remove the floor cover seal Inspect the seal under the Fuel Delivery Unit fuel pump lock ing flange for proper sealing Also check the fuel line connec tio
4. 100 2DCY mSec 3 Diagnosis and Testing eee 09 No CAN mes sages received Time after ignition on 500 mSec Manual trans mission coded ECM and mes sages received from TCM Time after ignition on 500 mSec e CAN active e time after ignition on gt 2 Sec receiving fault val ue 50 C Implausible da taomessagecre ceived Time after ignition on 500 MSec COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum Invalid Data Check ABS for Sensor signal Time after ignition on 500 Received any sensor failure 500 mSec From Anti faults Check Lock Brake ABS module System with scan tool for Control correct calibra tion software veh info and cor rect VIN None or im plausible infor mation CAN 1 VSS signal incorrect gt 206 MPH Check the Ambient Air Temperature Sensor G17 Refer to 3 5 25 Am bient Air Temperature Sensor page 164 Check the CAN Bus terminal re Ambient tem perature value initialization 00h Temperature received from CAN 49 5 C Key ON Status ambient temperature from instrument cluster no fault Ambient temp sen sor no fault sistance Re fer to gt 3 5 43 CAN Bus Terminal
5. Check the the Actual pressure Fuel Pressure Deviation Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check page 119 lt 100 kPa gt 100 kPa Check the In short to batt take Air Tem perature IAT Sensor 2 G299 Refer to 33 S 16 Charge Ait Pressure Sen sor Intake Air Temperature sensor 2 Check ing page 142 IAT gt 4 47 V Check the In short to ground take Air Tem e perature IAT Sensor 2 G299 Refer to gt 3 5 16 Charge Air Pressure Sen sor Intake Air Temperature Sensor 2 Check ing page 142 IAT lt 0 15 V Time after engine start gt 60 Sec M fuel cut off not ac e 180 tive Sec time after fuel cut off if applicable 20 Sec Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY 3 Diagnosis and Testing 33 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions MIL Illum P0106 Manifold NOTE The Difference No BARO CMP e multiple Absolute BARO sensor is manifold pres Throttle EVAP or ce Pressure to an internal part of sure lower IAT codes set e 2DCY the ECM andis threshold mod a 3 Continu not repairable If el lt 0 Model Time after engine Sec alle th
6. Monitor ID 3A 58 Fuel Tank EVAP System Integrity Leak Test 0 90 Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 3A 58 3 Diagnosis and Testing 1 9 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Select the desired Test ID or Hex ID Check specified values at idle _Test ID__ Component or System en Additional Information 81 129 129 P0455 Fuel Tank Leak Test large leak 65535 Refer to DTC P0455 in the DTC summary table gt page 72 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID 3B 59 Fuel Tank EVAP System Integrity Leak Test 0 40 Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 3B 59 Select the desired Test ID or Hex ID Check specified values at idle TestID Component or System m Max Additional Information 81 129 129 P0442 Fuel Tank Leak Test Sma
7. Multimeter jumper wire Wiring diagram Test requirements e The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched OFF e Engine COLD Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Connect the scan tool Switch the ignition On Using the scan tool check the coolant temperature ___Diagnostictext______ Specified value Coolant temperature near Ambient tempera ture veh completely cooled down Switch the ignition Off If the specified value was Not obtained Continue test according to the following table 1 60 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer Indicated approx Open circuit or short circuit gt page 162 40 0 C to B Short circuit to Ground gt page 163 140 0 C If the specified value was obtained Start the engine and let it run at idle The temperature value must increase uniformly in increments of 1 0 C If the engine shows problems in certain temperature ranges
8. Start engine and let it run at idle Using the scan tool Check the temperature of the Manifold Absolute Pressure MAP Sensor G71 and Intake Air Tem perature IAT Sensor G42 at idle Diagnostic text Specified value Intake air temperature sensor e Engine running at idle approx ambient temper ature End diagnosis and switch ignition off If the specified value was obtained but the DTC memory has a DTC indicating a Manifold Absolute Pressure MAP Sensor G71 Intake Air Temperature IAT Sensor G42 fault Check the voltage supply of the Manifold Absolute Pressure MAP Sensor G71 Intake Air Temperature IAT Sensor G42 gt page 132 If specified value was not obtained Check the wiring of the Manifold Absolute Pressure MAP Sensor G71 Intake Air Temperature IAT Sensor G42 gt page 132 3 Diagnosis and Testing 1 31 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Checking voltage supply Remove the engine cover Refer to appropriate service man ual Disconnect the Manifold Absolute Pressure MAP Sensor G71 and Intake Air Temperature IAT Sensor G42 electrical harness connector 1 Crank the engine A24 10295 Using a multimeter check the Manifold Absolute Pressure MAP Sensor G71 Intake Air Temperature IAT Sensor G42 electrical harness connector terminal 3 to engine Ground GND for voltage Sp
9. e Ground connections between engine transmission chassis OK e Ignition switched Off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover Refer to the Repair Manual Remove the Ignition Coils with Power Output Stage N70 N127 N291 N292 N323 electrical harness screws 1 92 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 Auer Disconnect the Ignition Coils with Power Output Stage N70 N127 N291 N292 N323 electrical harness connectors from the Ignition Coils with Power Output Stage N70 N127 N291 N292 N323 Checking voltage supply Switch the ignition ON Using a multimeter check the Ignition Coil electrical harness connector terminals 1 to 4 for voltage Specified value Battery voltage Switch the ignition OFF If the specified value was Not obtained Check the Ignition Coil electrical harness connector terminal 1 through fuse SB8 in fuse panel B to the Engine Control Mod ule ECM Power Supply Relay J271 terminal 2 relay ter minal 87 for an open circuit Refer to Wiring Diagrams for circuit locations Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring connection for an open circuit high resist ance or short circuit to Ground Check the wiring connection for damage corrosion loo
10. Disconnect the Fuel Injector electrical harness connectors from Fuel Injectors N30 N31 N32 N33 N83 Checking internal resistance Using a multimeter check the Fuel Injector electrical terminals 1 to 2 for resistance Specified value 10 0 to 18 5 O at approx 20 C If the specified value was Not obtained Replace the malfunctioning Fuel Injector Refer to the Repair Manual If the specified value was obtained Checking activation and wiring Connect a Diode test lamp 12 V to the electrical harness connector terminals 1 and 2 of the Fuel Injector to be tested Operate the starter and test the activation of the Fuel Injector LED should flicker Switch the ignition OFF If LED does not flicker Remove th Fuel Pump Relay 2J1722 Connect a jumper between the Fuel pump relay terminals 30 and 87 Turn the ignition switch ON 1 68 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer Using a test lamp connected to ground check terminal 1 of the Fuel Injector to be tested The lamp should be ON Ifthe test lamp did not turn on locate the open or high resist ance in the voltage supply circuit If the voltage supply was OK If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Rem
11. start gt 60 00 hPa TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0111 P0112 P0113 Intake Air Tempera ture Circuit Range Per formance Intake Air Tempera ture Sensor 1 Circuit Low Input Intake Air Tempera ture Sensor 1 Circuit High Input Check the In take Air Tem perature IAT Sensor G42 Refer to gt 3 5 11 Intake Air Temperature Sensor and Mani fold Absolute Pressure Sensor page 130 Check the In take Air Tem perature IAT Sensor G42 Refer to gt 3 5 11 Intake Air Temperature Sensor and Mani fold Absolute Pressure Sensor page 130 Check the In take Air Tem perature IAT Sensor G42 Refer to gt 3 5 11 Intake Air Temperature Sensor and Mani fold Absolute Pressure Sensor IAT minus en gine tempera ture engine start AND IAT minus am bient air tem perature en gine start gt 40 25 K Engine off time gt 0 Sec Once 6 18 h 2 DCY engine tempera ture engine start lt 1 5 C AAT at start lt 40 25 K IAT at start lt 5 25 C intake air tempera ture condition vehicle speed gt 25 mph 2 Sec Continu ous KO IAT lt 0 15 V
12. terminal or test box socket Z29 electrical harness con nector terminal Specified value 1 5 Q max If the specified value was Not obtained Check the wiring for an open or high resistance Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the wiring and the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Install the right vehicle floor cover Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 Diagnosis and Testing 1 59 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 3 5 24 Engine Coolant Temperature Sensor 1 or 2 Checking A WARNING Cooling system is under pressure Danger of scalding when opening Note Use only gold plated terminals when servicing terminals in the electrical harness connector of Engine Coolant Temperature ECT Sensor G62 or G83 Special tools and workshop equipment required
13. 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID 3D 61 EVAP Purge Flow Monitor Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 3D 61 Select the desired Test ID Check specified values at idle TestID Component or System m ux Additional Information 80 128 128 P0441 Purge Flow Monitor valve open 0 2 Refer to DTC P0441 in the DTC summary ta ble gt N 69 82 130 Purge Flow Monitor valve closed 0 04 9945 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID 41 65 Oxygen Sensor Heater Monitor Bank 1 Sensor 1 Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 41 65 Select the desired Test ID or Hex ID Check specified values at idle TestID Component or System Min Max Additional Information 85 133 133 P0135 Oxygen sensor
14. 81 129 P2271 Minimum voltage threshold from 000 V 0 8018 V Refer to DTC P2271 in rich to lean the DTC summary table gt page 94 82 130 P2270 Maximum voltage threshold 0 64 V 1 08 V Refer to DTC P2270 in from lean to rich the DTC summary table gt page 94 86 134 P2271 O2 sensor transient time Bank 0 0 mSec 2 5 Sec Refer to DTC P2271 in 1 Sensor 2 the DTC summary table gt page 94 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check forstored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID 21 33 Oxygen Storage Content of Catalyst Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored 1 8 Rep Gr ST Generic Scan Tool Seca eae TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Select Monitor ID 21 33 Select the desired Test ID or Hex ID Check specified values at idle _Test ID__ Component or System Min Max Additional Information 84 132 132 P3298 Oxygen Storage Content value of 1 000 65535 Refer to DTC P3298 in catalyst the DTC summary table gt page 66 If any of components or systems fail
15. COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P2450 Evaporative Check the e EVAP pump ECT gt 60 C 21 5 Sec 2 DCY Leak Detec current differ N tion Pump ence between ECT at start lt 60 itchi LDP reference C V144 Refer measurement o to to idle lt 3 mA Swng oP NN Stuck Open 3 5 13 Leak Altitude lt 2700 m Detection Pump Time since engine Checking start gt 600 Sec page 136 Integrated EVAP purge flow since last purge stop gt 2 g Integrated EVAP purge flow since last monitoring run gt 0g Intake manifold vacuum gt 100 hPa Vehicle speed lt 120 km h Fuel volume flow lt 5 ml s Change in battery voltage during monitoring lt 1 50 V Engine speed not at idle and above 20 RPM O2S front ready P2539 Fuel Sys Check the signal range 1 Sec tem Fuel Pres check out of sure Sensor range high sig G247 Re nal voltage gt fer to 4 9 gt 4 8 V 3 0 5 Fuel Pressure Sensor page 119 P2541 Fuel Sys Check the signal range 1 Sec tem Fuel Pres check out of sure Sensor range low sig G247 Re nal voltage lt fer to 0 2 lt 0 2 V gt 3 5 5 Fuel Pressure Sensor page 119 1 06 Rep Gr ST Generic Scan Tool TT RS 2012 gt CGD Editi
16. Connect a fuel line from the fuel pressure test set to the dis connected fuel return line and hold it in the measuring con tainer Press the switch on the hand held remote control jumper and operate the fuel pump for 15 seconds Compare quantity of fuel delivered with minimum delivery rate in the diagram cm 30s 3 Diagnosis and Testing 1 1 5 CAU TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Note Voltage at the fuel pump with engine stopped and fuel pump run ning is approx 2 volts less than battery voltage If minimum delivery quantity is not obtained the following mal functions may be present If specified value was Not obtained Check the following components Fuel lines pinched Fuel filter restriction Fuel pump faulty Repair or replace the above components as necessary To replace the fuel filter refer to the Repair Manual To replace the fuel pump refer to the Repair Manual Assembly is performed in reverse order of removal Note the fol lowing Install the rear seat bench Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory
17. Connect the multimeter positive lead to terminal 1 of the Fuel Delivery Unit harness connector Connect the multimeter ground to the Battery Negative termi nal Crank the engine and note voltage displayed on multimeter during crank Voltage should be within 2 5 volts of battery volt age Turn the ignition switch OFF If voltage is below specification Check voltage supply from the Fuel Pump relay J17 1 1 2 Rep Gr ST Generic Scan Tool TT RS 2012 gt Generic Scan Tool Edition 07 2011 If voltage is within specification Connect the multimeter ground lead to terminal 5 of the Fuel Delivery Unit harness connector Connect the multimeter positive lead to terminal 1 Crank the engine and note voltage displayed on multimeter during crank Voltage should be within 2 0 volts of battery volt age Turn the ignition switch OFF If voltage is below specification Check for open ground circuit or poor ground connection Re pair as necessary Refer to Wiring Diagrams for pin locations If voltage is within specification Replace the Fuel Delivery Unit Fuel Pump Refer to the Re pair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04
18. Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 2 Fuel Pump Pressure Checking Special tools and workshop equipment required Multimeter fuel line adapter set V A G 43 18 1 7A gt d hese tools maybe substituted with an equivalent aftermarket tool and are also available for rental or purchase through the local dealer Inline Fuel pressure gauge with shutoff high pressure Test conditions e Battery voltage 12 5 V e Function and voltage supply for the Fuel Pump is OK Fuel tank at least 1 4 filled e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 AN WARNING Fuel system is under pressure Before opening the system place rags around the connection area Then release the pres sure by carefully loosening the connection 3 Diagnosis and Testing Auol 113 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Start diagnosis Disconnect fuel supply line and catch any fuel coming out with a shop towel Refer to the Repair Manual for location Note Pull circlip upward to unlock fuel line Install a fuel pressure gauge with appropriate adapters Open shut off valve on fuel gauge Switch ignition on and off repeatedly until fuel pressure stops increasing
19. Modeled ex haust gas temp gt 300 C Fuel cutoff gt 3 Sec O2S rear read iness gt 10 Sec 2nd lambda control closed loop OR Time of fuel cutoff lt 90 Sec Time after last fuel cutoff gt 5 Sec Rear O2S ready Exhaust temp at sensor devi ation between actual and ex pected lambda signal lt 8 after time since fuel cutoff at first cylinder gt 2 Sec Exhaust mass flow gt 12 kg h Exhaust mass flow dynamic within range 500 to 500 kg h Sensor voltage at start of measurement gt 0 45 V Target voltage end of meas urement lt 0 15 V 10to215 e 2DCY Sec TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Pa Monitoring Frequency of sage cedure ria and Threshold rameters with En Time checks MIL Value able Conditions Length Illum P2279 Intake Air Check the in Offset value Desired mass 2 Sec e 2DCY take system for leaks Check oil cap for proper seal along with en throttle mass flow gt 19 kg h correction fac tor gt 0 95 flow 5 to 21 kg h ECT gt 42 8 C EVAP purge gine cover valve closed gaskets or oil dipstick not seated in tube that may allow addition al air into crankcase The PCV sys tem is not me tered no valve so any additional air entering through an engine gasket will cause an increase in PCV volume drawn into t
20. Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions a MIL Illum __ Illum P0171 System Tool Too Lean Bank 1 multipli cative Check the fuel the fuel pressure Re fer to gt 3 5 2 Fuel Pump Pres sure Check ing page 113 Check the Fuel Pressure Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check Check the Fuel injectors N30 N31 N32 N33 N83 Refer to gt 53 5 27 Fuel Injectors page 167 Check the Heated Oxy gen Sensor HO2S G39 Refer to 3 5 20 Heat ed Oxygen Sensor page 152 Check the Oxygen Sen sor O2S Be hind Three Way Catalytic Converter TWC G130 to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 Refer Adaptive value gt 20 0 only continu ous 2 DCY Engine speed 1200 4000 RPM Engine load 20 95 mass air flow 6 25kg h ECT gt 60 0 C lambda control closed loop oe evap purge valve closed delta fuel adapta tion lt 10 02 3 Diagnosis and Testing 47 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and
21. Monitor ID 01 Oxygen sensor monitoring before cat alytic converter Select Test ID 83 Dynamic test Check the specified values at idle Dynamic test aa value Normal operation si e operation 0 350 V aoa e aS 1 52 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 Auer TT RS 2012 gt ChIP Dynamic test Specified value min max Reduced threshold upon suspicion of malfunction in catalytic con 0 399 V Loe verter If the specified value was obtained Switch the ignition OFF Generate the readiness code If the specified value was Not obtained Checking primary voltage Disconnect the Heated Oxygen Sensor HO2S G39 electri cal harness connector Using a multimeter connect the negative lead to engine ground Check the Heated Oxygen Sensor HO2S G39 electrical harness connector terminals 1 2 5 and 6 for voltage Specified value 2 40 V 3 10 V Switch the ignition OFF If the specified value was obtained Replace the Heated Oxygen Sensor HO2S G39 If the specified value was Not obtained Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Heated Oxygen Sensor HO2S G39 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector T94 terminals for an open circuit Refer to Wiring Diagram
22. PID 05 Coolant temperature that is to be monitored The current values of the component or system that is being monitored will be displayed on the scan tool screen PID Componentor System Long term secondary O2 sensor Fuel Trim Bank 1 Switch the ignition OFF 3 Diagnosis and Testing 1 3 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 3 3 3 Diagnostic Mode 03 Read DTC Mem ory Diagnostic Mode 03 makes it possible to read emissions related faults confirmed DTCs faults which have activated the MIL in the ECM and in the TCM When the ECM recognizes an emission related fault it turns on the malfunction indicator lamp If an electronic throttle malfunction is recognized the ECM turns on the electronic power control warning lamp Both are located in the instrument cluster The DTCs are sorted by SAE code with the DTC tables consisting of a 5 digit alpha numeric value Note Depending on scan tool and protocol used diagnostic mode 03 and the information provided may be referred to by a different name The following tables provide a breakdown and explanation of the DTC code P Codes Component group P x fx x x DTC for the drivetrain Norm Code Trouble codes defined by SAE with specified malfunction texts e We W U Additional emission relevant DTCs provided by the manufac turer IP f2 fx x x DTCs defined by SAE with specified texts from MY 2000 3 x x x Additional emiss
23. Stage Refer to gt 3 5 41 lg nition Coil with Power Output Stage page 192 Ignition Coil Check the Ig Signal voltage Engine speed gt i i Continu A Primary nition Coils gt 5 2 6 0V 1500 RPM ous Control Cir with Power cuit High Output 2 DCY Stage Refer to gt 3 5 41 lg nition Coil with Power Output Stage page 192 Ignition Coil Check the Ig short to ground e Engine speed gt 0 5 Sec Continu B Primary nition Coils signalvoltage lt 7500 RPM ous Control Cir with Power 0 5 10 V cuit Low Output 2 DCY Stage Refer to gt 3 5 41 lg nition Coil with Power Output Stage page 192 98 Rep Gr ST Generic Scan Tool B Primary Control Cir cuit High Ignition Coil C Primary Control Cir cuit Low Ignition Coil C Primary Control Cir cuit High Ignition Coil D Primary Control Cir cuit Low Check the Ig nition Coils with Power Output Stage Refer to gt 3 5 41 Ig nition Coil with Power Output Stage Check the Ig nition Coils with Power to gt 3 5 41 dg nition Coil with Power Output Stage page 192 Check the Ig nition Coils with Power to gt 3 5 41 lg nition Coil with Power Output Stage page 192 Check the Ig nition Coils with Power Output Stage Refer t o gt 3 5 41 lg nition Coil with Power Output Stage page 192 Signal voltage gt 5 2 6 0 V Signal curre
24. TPS electrical range no failure unthrottled regime condition not fulfil led engine speed gt 80 RPM engine speed gt 1200 RPM only if TPS2 gt TPS1 multiple 2 DCY Continu ous 2 DCY Continu ous 2 DCY 3 Diagnosis and Testing 37 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum Be O2 Sensor For CBTA Fed EWMA filtered e Time of fuel cutoff 10 Sec 1 DCY Slow Re ONLY max differential lt 90 Sec sponse Check the transient time at Rich to Oxygen Sen fuel cutoff gt 0 5 Time after last fuel Lean Bank sor O2S Sec and number cutoff gt 5 Sec 1 Sensor 2 Ha Refer of checks gt 3 Rear 02S ready gt 3 5 22 Oxy Exhaust temp at gen Sensor sensor deviation after Catalytic between actual Converter and expected Checking lambda signal lt 8 page 156 after time since fuel cutoff at first cylinder gt 2 Sec Exhaust mass flow gt 12 kg h Exhaust mass flow dynamic within range 500 to 500 kg h Sensor voltage at start of measure ment gt 0 45 V Target voltage end of measurement lt 0 15 V P0130 02 Sensor Check the O2S ceramic heater control ac 20 Sec 2 DCY Circuit Bank Heated Oxy temp lt 640 C tive 1 1 ee ong a OR Modeled exhaust
25. Write ability check failed Checksum Incor rect Internal hard ware voltage check failed Communica tion CPU Sen sor IC failed EEPROM Check failed Signal voltage 4 50 to 5 50 V open circuit Signal voltage lt 3 00 V groundeg isirz cuit Signal current 0 60 to 1 20 A aa ae gt Fuel pump relay commanded OFF Fuel pump relay commanded ON ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY 0 5 Sec 2 DCY Engine speed gt 80 RPM 0 5 Sec 2 DCY Engine speed gt 80 RPM 3 Diagnosis and Testing TT COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum Check the P0642 Sensor Ref erence Volt P0643 Sensor Ref erence Volt age A Cir cuit High P0651 Sensor Ref P0638 Throttle Ac tuator Con trol Range Perform ance Bank 1 P0641 Sensor Ref erence Volt age A Cir cuit Open Throttle Valve Control Mod ule J338 a to 73 5 19 Throt tle Valve Con trol Module Checking page 149 If any sensor specific codes are present perform the diagnostic for those codes first If no sen sor codes are set replace the Engine Control Mod ule ECM 4623 Refer to t
26. al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celeratorRed al Position Sensor At celerator Ped al Position Sensor 2 page 147 50 Rep Gr ST Generic Scan Tool TPS 1 to TPS 2 gt 5 10 to 6 3 TPS 2 calc position gt 9 Signal voltage lt 0 156 V Signal voltage gt 4 84 V engine speed gt 0 0 14 RPM 2DCY commanded OFF high pressure sys tem current lt 2 6 A Engine speed gt 80 RPM Engine speed gt i e multiple 480 RPM e 2DCY TPS electrical range no failure unthrottled regime condition not fulfil led engine speed gt 480 RPM engine speed gt 1200 RPM only if TPS2 gt TPS1 e multiple e 2DCY multiple e or TPS 1 electrical range failure ee TT RS 2012 gt Hy Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum __ Illum percharger Overboost Condition Rationality check high percharger Boost Sen sor A Circuit Low Check the Charge Air Pressure Sen sor G31 Refer to gt 3 5 16 Charg eAinPressure S nsor in take Air Tem perature Sen sor 2 Check Check the charge air system for proper seal Refer to En gine Mechani cal Fuel In j
27. gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 Diagnosis and Testing 1 69 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 3 5 28 ECM Voltage Supply Checking Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts e All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission selector lever in position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the Engine Control Module ECM Power Supply Re lay J271 Checking voltage Using a multimeter check the Engine Control Module ECM Power Supply Relay Box socket 8 relay terminal 87 to Ground Specified value Battery voltage If the specified value was Not obtained Check the wiring connections from the Battery to the Engine Control Module ECM Power Supply Relay J271 socket 8 for an open or a short circuit Check the wiring connections for damage corrosio
28. lowing step Remove the Engine Control Module ECM J623 Refer to appropriate service manual 1 72 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer Using a Multimeter check the following wiring connection for resistance Engine Component Engine Control Module ECM electri Power Supply Relay cal harness connector T94 or test box J757 socket socket 6 85 Specified value 1 5 Q If the specified value was not obtained Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the wiring connection If no malfunctions are found in the wiring and the voltage supply was OK Replace the Engine Component Power Supply Relay J757 Refer to appropriate service manual Perform a road test to verify repair If the fault does not return Repair complete Generate readiness code Refer to gt 3 2 Readiness Code page 8 If the fault does return and no malfunction is detected in the wiring and the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to appropriate service manual Assembly is performed in the reverse of the removal Final procedures After repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14
29. take system for leaks emission threshold mis ifre rate MR gt 2 calibrated threshold mis Check the ifre rate MR gt fuel pres 1 4 sure Refer catalyst dam to isi 3 5 2Fuel MR gt 4 T Pump Pres sure Check Check Fuel Injectors N30 N31 N32 N33 N83 Refer to e ne af Fuel Injec tors Check Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 Ig nition Coil with Power Output Stage Checking page 192 Active after en gine start gt 200 RPM and 1 cam revolution Engine torque gt Nm Engine speed range idle 6000 RPM Fuel cutoff Not active ECT at start gt 20 C IAT gt 48 C if ECT start lt 20 C than wait until actual ECT gt 18 C 1000 Continu Rev gt ous O re 2 DCY Misfire Rate immedi 200 ate Rev 2 5 to 24 Misfire Rate 3 Diagnosis and Testing 59 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P0305 Cylinder 5 Check the Active after en e 1000 Continu Edition 07 2011 emission P0321 Engine threshold mis ifre rate MR gt 2 Misfire De Spark plugs tected Check the in take system for leaks c
30. 1 1 Safety Precautions page 2 View clean working conditions gt 1 2 Clean Working Conditions page 3 Use only gold plated terminals when servicing any component with gold plated electrical harness connector terminals For wiring diagrams component locations and connector views Refer to the applicable wiring diagram Special tools and workshop equipment required multimeter Wiring diagram Test requirements e The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground GND connections between engine transmission chassis OK e Ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to Perform a preliminary check to verify the Customers complaint Refer to 2 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to appropriate service manual Disconnect the Intake Manifold Runner Position Sensor G336 electrical harness connector arrow Switch the ignition on M24 0548 1 34 Rep Gr ST Generic Scan Tool TT RS 2012 gt CoP Generic Scan Tool Edition 07 2011 Auer Using a multimeter
31. 140 C ECT outlet lt 40 C ECT at start 7 to 60 C ECT gt 35 C IAT gt 7 C accum fuel cut off lt 40 220 Sec delta ambient pressure lt 1 2 kPa vehicle speed gt 2 mph vehicle speed lt 5 mph mass air flow gt 33 89 kg h mass air flow lt 96 220 kg h lt 1000 Once ce 2 DCY ai i mi f P2187 System Too s Lean at Idle Bank 1 P2188 System Too s Rich at Idle Bank 1 Malfunction Crite Secondary Pa DTC Error Mes Diagnostic Pro sage cedure ria and Threshold Value Check for a vacuum leak or poor engine gasket seal Check O2 sensor opera tion If any O2 codes are set diagnose them first Check the fuel pressure Re fer to gt 3 5 2 Fuel Pump Pres s Adaptive value Check the Secondary Air Injection Combination Valve Refer to gt 3 5 31 Sec ondary Air In jection Combi nation Valve page 174 Check O2 sensor opera tion If any O2 codes are set diagnose them first Adaptive value lt 5 02 Check the fuel pressure Re fer to gt 3 5 2 Fuel Pump Pres sure Check Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 page 124 rameters with En able Conditions pe TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Monitoring Frequency of Time checks M
32. 2 DCY IAT gt 4 47 V Continu ous 2 DCY 3 Diagnosis and Testing 35 COLD TT RS 2012 gt Generic Scan Tool Edition 07 2011 Auol DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0116 Engine Coolant Tempera ture Sensor 1 Circuit Range Per formance Engine Coolant Tempera ture Sensor 1 Circuit Low Input Engine Coolant Tempera ture Sensor 1 Circuit High Input Check the En gine Coolant Temperature ECT Sensor G62 Refer to gt 3 5 24 En gine Coolant Temperature Sensor 1 or 2 Checking page 160 Check the coolant ther mostat stuck open or closed Refer to the Repair Manual Check the En gine Coolant Temperature ECT Sensor G62 Refer to gt 3 5 24 En gine Coolant Temperature Sensor 1 or 2 page 160 Check the En gine Coolant Temperature ECT Sensor G62 Refer to gt 3 5 24 En gine Coolant Temperature Sensor 1 or 2 Checking page 160 36 Rep Gr ST Generic Scan Tool delta ECT lt 2 25 3 75 K e ECT lt 45 C ECT gt 141 C Dri ving condition 1 ECT at start 50 to 140 C driving condition 1 2 x gt 10 Sec Cold start detected Substitute ECT gt 45 C Vehicle speed 0 2 mph Mass air flow gt 4 200 kg h and Driving co
33. 3 Sec Voltage differ ence between load pulse and no load pulse gt 2 80 V Internal resist ance gt 40 k and exhaust temp gt 670 C Signal voltage gt 1 08 V for gt 5 Sec EWMA filtered transient time at fuel cut off gt 1 5 Sec O2 voltage be tween 201 401 mV Generic Scan Tool Sensor voltage lt 0 40 V or 0 50 to 1 08 V Lambda control Not at max Exhaust temp gt 1263 C for gt 8 8 Sec Heater power gt 24 for gt 18 Sec Sensor voltage lt 0 40 V or 0 50 to 1 08 V Lambda control Not at max Exhaust temp gt 1263 C for gt 18 Sec Heater power gt 24 for gt 18 Sec Sensor voltage lt 0 40 V or 0 50 to 1 08 V Lambda control Not at max Exhaust temp gt 1263 C for gt 18 Sec Heater power gt 24 for gt 18 Sec O2S rear Fully heated up Rich voltage ena ble gt 548 mV Modeled exhaust termp gt 480 C No other O2 sen sor faults set Seca eae TT RS 2012 gt Hy Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum Illum P0142 O2 Sensor Sensor Circuit Bank 1 Sensor 3 P0143 02 Sensor Circuit Low Auol 3 Diagnosis and Testing 43 OED TT RS 2012 gt Auol Generic Scan Tool Edition 07 2011 DTC Error Mes
34. Check the wiring connectionfomdamage sicorrosion loose or broken terminals If necessary repair the faulty wiring connection Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 43 CAN Bus Terminal Resistance Check ing Special tools and workshop equipment required Multimeter Wiring diagram 3 Diagnosis and Testing 1 95 CAY TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Test requirement e A CAN Bus malfunction was recognized The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N A C switched off e Ground connections between engine transmission chassis OK e Ignition switched OFF Function The Engine Control Module ECM J623 communicates with other CAN Bus capable control modules The control modules are connected by two data bus wires refer red to as CAN High and CAN Low Th
35. If test and measuring equipment is operated from the passenger seat the person seated could be injured in the event of an accident involving deployment of the passenger side airbag The fuel system is under pressure Before opening the fuel system place rags around the connection area Then release pressure by carefully loosening the connection The engine section of the fuel system after the high pressure pump is under extremely high pressure When working on en gine or fuel injection system fuel pressure must be relieved to residual pressure before opening high pressure components Refer to the Service Manual for the proper procedure If the battery has not been disconnected the fuel pump fuse must be removed before opening the fuel supply system as the fuel pump may be activated by the driver s door contact switch Testing of the EVAP and ORVR systems can result in the es cape of explosive fuel vapor Do not smoke while testing the EVAP system and make sure the area you are working in is well ventilated Observe the following for all procedures especially in the en gine compartment due to lackeofroomy Route lines of all types e 9 forfuel hydraulic EVAP can ister system coolant and refrigerant brake fluid vacuum and electrical wiring so that the original path is followed Watch for sufficient clearance to all moving or hot com ponents Do not touch or disconnect the Ignition Coils ignition wires connecti
36. J623 electrical connector T60 harness connector terminals terminals or test box socket Specified value 1 5 Q Max If the specification was not obtained Check the wiring for a short circuit to Battery or an open circuit Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the wiring Replace the Engine Control Module ECM J623 Refer to appropriate service manual 3 Diagnosis and Testing 1 35 CAU TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Install the engine cover with air filter Refer to appropriate service manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 13 Leak Detection Pump Checking Special tools and workshop equipment required Multimeter EVAP Smoke Machine Wiring diagram Test requirements e The ignition switched Off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Prelimin
37. P0697 P0698 Sensor Ref Sensor Ref Check the En gine Control Module ECM Power Supply Relay J271 Refer to gt 3 5 28 ECM Voltage Sup ply Check page 170 Check the En gine Control Module ECM Power Supply Relay J271 Refer to 3 5 28 ECM Voltage Sup ply Check ing page 170 Check the En gine Control Module ECM Power Supply Relay J271 Refer to gt 3 5 28 ECM Voltage Sup ply Check ing page 170 If any sensor specific codes are present perform the diagnostic for those codes first If no sen sor codes are set replace the Engine Control Mod ule ECM J623 Refer to the Repair Manual Replace the Engine Con trol Module ECM J623 Refer to the appro priate service manual 80 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 control voltage 2 6 3 7V sense circuit voltage lt 6 0 V control voltage 2 6 3 7V sense circuit voltage gt 6 0 V signal current gt 0 7 1 4 A sense circuit voltage lt 6 0 V internal com munication fail ure signal voltage lt 4 6 5V ECM keep alive 0 5 Sec time 0 5 Sec main relay com manded on ECM keep alive time 0 5 Sec main relay com manded on ECM keep alive time 0 5 Sec main relay com manded on TT RS 2012 gt CGD Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro
38. Signal voltage lt 3 25 2 15 V evap purge valve 200 Sec e Once closed lt 2 DCY ECT at start gt 4 35 C LDP activated Se lected gear any drive ambient pressure gt 743 5 hPa number of diagno sis attempts lt 15 IAT gt 4 C delta ambient pressure lt 300 Pa IAT drop after en gine start lt 7 K Time after engine start gt 175 1200 Sec ECT 4 115 C Vehicle speed gt 19 mph selected gear any drive EVAP purge valve 0 5 Sec Continu commanded OFF ous Engine speed gt 2DCY 40 RPM 3 Diagnosis and Testing 73 CED TT RS 2012 gt Auol Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0459 Evaporative Circuit High Secondary sufficient Flow P0501 Vehicle Speed Sen sor Range Perform ance Vehicle Speed Sen sor Intermit tent Erratic High Check the e Li current Evaporative gt 2 Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 page 124 Check the Secondary Air Injection Combination Valve Refer to SAI pressure vs modeled SAI lt 50 72 OR Absolute devi ation of raw pressure signal from filtered signal mean value
39. The Engine Control Module ECM J623 fuses OK The fuel filter OK The battery voltage at least 12 5 V e All electrical consumers switched off radiator fan must NOT run during test e A C switched off The fuel tank at least 1 4 filled The ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to appropriate service manual Checking voltage Disconnect the Fuel Pressure Sensor G247 electrical har ness connector Switch the ignition on Using a multimeter check the Fuel Pressure Sensor G247 electrical harness connector terminals for voltage Fuel Pressure Sensor G247 elec Specified value trical harness connector terminals 1 to Battery positive Battery voltage 3 to Ground GND about 5 V Switch the ignition off If the specified value was obtained Replace the Fuel Pressure Sensor G247 Refer to appro priate service manual If the specified value was not obtained 3 Diagnosis and Testing 1 1 9 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Checking wiring connections If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the
40. e f you lack the skills tools and equipment or a suitable workshop for any procedure described in this manual we suggest you leave such repairs to an authorized Audi retailer or other qualified shop We especially urge you to consult an authorized Audi retailer before beginning repairs on any vehicle that may still be covered wholly or in part by any of the extensive warranties issued by Audi e Disconnect the battery negative terminal ground strap whenever you work on the fuel system or the electrical system Do not smoke or work near heaters or other fire hazards Keep an approved fire extinguisher handy e Audi is constantly improving its vehicles and sometimes these changes both in parts and specifications are made applicable to earlier models Therefore part numbers listed in this manual are for reference only Always check with your authorized Audi retailer parts department for the latest information e Any time the battery has been disconnected on an automatic transmission vehicle it will be necessary to reestablish Transmission Control Module TCM basic settings using the VAG 1551 Scan Tool ST e Never work under a lifted vehicle unless it is solidly supported on stands designed for the purpose Do not support a vehicle on cinder blocks hollow tiles or other props that may crumble under continuous load Never work under a vehicle that is supported solely by a jack Never work under the vehicle while the engine is running e
41. electrical connector termi electrical harness connec nals or test box socket tor terminals 194 20 T94 4 pin 30 of J496 Specified value 1 5 Q Max If the specification was not obtained Check the wiring for a short circuit to each other Battery or Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals f necessary Repair the faulty wiring connection If no malfunction is detected in the wiring Erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 Perform a road test to verify Repair If the DTC does not return Repair complete Generate readiness code Refer to gt 3 2 Readiness Code page 8 End diagnosis If the DTC does return and no malfunction is detected in the wiring and the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to appropriate Repair manual Assembly is performed in the revers of the removal Final procedures After the Repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8
42. faults gt 4 Cold condition Signal voltage lt 0 06 V for gt 3 Sec Cold condition Signal voltage gt 0 06 V for gt 3 Sec Seca eae TT RS 2012 gt Hy Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions eu MIL Illum Illum P0135 O2 Heater Heater Check the the Circuit Bank Oxygen Sen 1 Sensor 1 sor 02S Heater G39 Refer to gt 3 5 21 Oxy gen Sensor Heater page 154 P0136 02 Circuit For CBTA Fed ONLY Check the Oxygen Sen sor O2S G130 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter Heater control Ac continu tive A ous Modeled exhaust 2 DCY gas temp gt 330 Sec C engine speed gt 25 rpm fuel cut off inactive UR time after engine start gt 40 Sec Engine shutoff time gt 300 Sec ECT start gt 9 8 C fuel cut off inactive engine speed gt 25 2 Sec continu rpm ous O2S rear dewpoint 2DCY exceeded O2S rear fully heated up modeled exhaust temperature gt 700 C for 10 Sec engine speed gt 25 3 Sec 2DCY rpm O2S rear dewpoint exceeded O2S rear fully heated up modeled exhaust temperature gt 700 C for gt 10 Sec engine speed gt 25 rpm O2S rear dewpoint exceeded O2S rear
43. page 14 gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 gt 3 3 5 Diagnostic Mode 05 Read Oxygen Sensor Monitoring Test Results page 16 gt 3 3 6 Diagnostic Mode 06 Read Test Results for Specific Di agnostic Functions page 16 gt 3 3 7 Diagnostic Mode 07 Read Faults Detected During the Current or Last Driving Cycle page 24 gt 3 3 8 Diagnostic Mode 08 Request Control of On Board Sys tem Test or Component page 25 gt 3 3 9 Diagnostic Mode 09 Read Vehicle Information page 25 gt 3 3 10 Diagnostic Mode 0A Check Permanent DTC Memory page 26 3 3 1 Diagnostic Mode 01 Read Current Sys tem Data Diagnostic Mode 01 makes it possible to access current emis sions related measured values and diagnostic data The original measured values no replacement values input and output data and system status information are displayed using Diagnostic Mode 1 Test requirement e Coolant temperature at least 80 C Procedure Connect the scan tool Start the engine and run at idle Select Diagnostic Mode 1 Obtain data From the following table select the desired the PID that is to be monitored e g PID 05 Coolant temperature The current values ofthe componentor systeimthatis being monitored will be displayed on the scan tool screen pI Componentor System O O 3 Diagnosis and
44. the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 Diagnosis and Testing 1 63 COLD TT RS 2012 gt Avo Generic Scan Tool Edition 07 2011 3 5 25 Ambient Air Temperature Sensor Checking Special tools and workshop equipment required Multimeter Wiring diagram Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Connect the scan tool Engine MUST be at room temperature Turn the ignition switch On Using the scan tool check the ambient air temperature Diagnostic text Specified value Ambient Air Temperature AAT approx ambient air tem Sensor perature Turn the ignition switch OFF If the specified value was obtained Fault may be intermittent Check for proper connection dam aged wiring or loose terminals Note On some models the display in the cluster will default to 419 F if the circuit is open or shorted to ground The display on the cluster may show 3 da
45. 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 35 Secondary Air Injection Sensor 1 Checking Special tools and workshop equipment required Multimeter Wiring diagram 1 80 Rep Gr ST Generic Scan Tool See eae TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Test requirements The Engine Control Module ECM J623 fuses OK The fuel filter OK e The battery voltage at least 12 5 V All electrical consumers switched off radiator fan must NOT run during test e A C switched off The fuel tank at least 1 4 filled e The ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to the Repair Manual Checking voltage Disconnect the Secondary Air Injection Sensor 1 G609 elec trical harness connector Switch the ignition ON Using a multimeter check the Secondary Air Injection Sensor 1 G609 electrical harness connector for voltage using the chart below Secondary Air Injection Sensor 1 Specified value G609 electrical harness connector terminals 1 to Battery Positive
46. 07 2011 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 20 Heated Oxygen Sensor Checking Note Use only gold plated terminals when servicing terminals in the electrical harness connector of the Heated Oxygen Sensor HO2S G39 Z19 Special tools and workshop equipment required Multimeter Wiring diagram Test requirements The Heated Oxygen Sensor HO2S G39 fuse OK e The Oxygen Sensor O2S Heater Z19 before catalytic con verter OK No heater code set e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e A C switched off e Ground connections between engine transmission chassis OK Exhaust system between catalytic converter and cylinder head properly sealed e Coolant Temperature at least 80 C Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Connect scan tool Start the engine and let it run at idle Select Diagnostic mode 6 Check test results of components that are not continuously monitored Select
47. 1 5 Q Max If the specified value was Not obtained Check the wiring connection for an open circuit short circuit to Battery or Ground Check the wiring connection for damage corrosion loose or broken terminals f necessary repair the faulty wiring connection If the wiring was OK and the voltage was Not present Replace the Engine Control Module ECM J623 Refer to the Repair Manual Connect the Ignition Coils with Power Output Stage N70 N127 N291 N292 N323 electrical harness connectors to the Ignition Coils with Power Output Stage N70 N127 N291 N292 N323 Install the Ignition Coils with Power Output Stage N70 N127 N291 N292 N323 electrical harness screws Install the engine cover with air filter Refer to the Repair Man ual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 42 Speed Signal Checking The following procedure requires a test drive Observe all safety precautions Refer to gt 1 1 Safety Precautions page 2 Special tools and workshop equipment
48. 2 Ifnecessary erase the DTC memory Refer to If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 30 Catalytic Converter Checking Test requirements e Battery voltage at least 12 5 volts e Oxygen Sensors OK No leaks or damage to exhaust system a Note If ANY Fuel Trim misfire or sensor faults are set repair those faults BEFORE replacing the Catalytic Converter Failure to do so will damage the replacement converter 3 Diagnosis and Testing 1 73 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Function test Perform the function test in Diagnostic Mode 06 Refer to gt 3 3 6 Diagnostic Mode 06 Read Test Results for Specific Diagnostic Functions page 16 Switch the ignition Off If the specified values are exceeded Check the exhaust system for leaks f necessary repair the leak in the exhaust system Erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 Perform a road test to verify Repair If the DTC does not return Erase the DTC memory Generate readiness code Refer to gt 3 2 Readiness Code page 8 If no leaks are found in the exhaust system Replace the catalytic converter with front exhaust pipe Re
49. 3 5 27 Fuel Injectors page 167 Check the Fuel Injector N31 Refer to gt 3027 Fuel Injectors page 167 Check the Fuel Injector N31 Refer to S 3 5 27 Fuel Injectors page 167 Check the Fuel Injector N32 Refer to e ne ead Fuel Injectors page 167 Check the Fuel Injector N32 Refer to 3 0 26 Fuel Injectors page 167 Check the Fuel Injector N33 Refer to F OAT Fuel Injectors page 167 Check the Fuel Injector N33 Refer to gt 3527 Fuel Injectors page 167 2 1 signal current gt 14 7 A signal current lt signal current gt 14 7 A signal current lt signal current gt 14 7 A signal current lt QidniA signal current gt 14 7 A Injection valve commanded OFF high pressure sys tem current gt 4 2 A Engine speed gt 40 RPM Injection valve commanded ON Engine speed gt 40 RPM Injection valve commanded OFF high pressure sys tem current gt 4 2 A Engine speed gt 40 RPM Injection valve commanded ON Engine speed gt 40 RPM Injection valve commanded OFF high pressure sys tem current gt 4 2 A Engine speed gt 40 RPM Injection valve commanded ON Engine speed gt 40 RPM Injection valve commanded OFF highipressure sys tem current gt 4 2 A Engine speed gt 40 RPM Injection valve commanded ON Engine speed gt 40 RPM TT RS 2012 gt Hy Generic Scan
50. Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0146 O2 Sensor Check the Oxygen Sen sor O2S 2 Behind Three Way Catalytic Converter TWC G130 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Oxygen Sen sor O2S Heater G130 Refer to gt 3 5 23 Oxy gen Sensor 1 after Catalytic Converter Heater page 158 1 Sensor 3 P0147 O2 Sensor Heater Cir cuit Bank 1 P0169 Incorrect Fuel may be con taminated or con tain alcohol above 15 on non E 85 compli ant vehicles If no other codes are set take a fuel sample and have it analyzed 44 Rep Gr ST Generic Scan Tool Signal voltage 40 to 60 V for gt 3 Sec Voltage differ ence between load pulse and no load pulse gt 2 80 V Internal resist ance gt 40 k and exhaust temp gt 670 C Internal heater resistance 1200 32400 Q Fuel quantity out of limit or in correct Sensor voltage lt 0 40 V or 0 50 to 1 08 V Lambda control Not at max Exhaust temp gt 4263 Cfor gt 18 Sec Heater power gt 24 for gt 18 Sec Heater comman ded ON Modeled exhaust gas temp 300 680 C Engine shutoff time gt 120 Sec during ECM keep alive time after shutoff lt 500 Sec Fuel cutoff not ac t
51. Emission System 0 eee 5 2 3 Electronic Engine Power Control 0 0 eee 6 2 4 uel Imjection SEPETE B eee eee eens 6 2 5 EnginesComiolModuley Ae eee tenes 6 2 6 Exhaust System Components 0 0000 ee 7 250 Secondary Air injection SySteM or inwhale nates eee eee ee 7 2 8 IMNO Syste iF does not guarantee or accepbany Tay i oe hoa de ke es ete egal Paes Oa doesd 7 2 9 Automatic TranSmiSSiION 0 0 ec eee 7 3 Diaghosisgandgesting 22 005000 e eee e eee eee ee eee cee eee eee eee ees 8 3 1 Dom Ea So oe e 2 ee de eee eed bebe bees 8 3 2 Readiness Codes OF fe ee aaa ee be bee bene bees 8 3 3 Diagnostic Modes OTE ON osred idr deua a e E EOE a E a e a e i aa 10 3 4 DIC Tables EEEE SEE EESTE E ET EEEE OT 27 3 5 Diagnostic Procedures 2 22 2e bebee ened a dae ee eee een enone eee bebe aaa annees 111 Contents COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Il Contents ST Generic Scan Tool 1 General Information Included in the contents of this Generic Scan Tool GST manual is a summary table of the vehicle specific OBD II Emission Rela ted DTCs The DTC table contains DTC Malfunction Criteria Threshold Values Secondary Parameters Enabling Conditions Monitoring Time Length Frequency of Checks and MIL Illumi nation information which can be used to accurately monitor and diagnose emissions related faults and perform functions required to run Modes 01 through OA with a hand held scan
52. Engine Control Module ECM J623 Refer to appropriate service manual Using a multimeter check the Fuel Pressure Sensor G247 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector T60 termi nals for an open circuit according to the wiring diagram Fuel Pressure Sensor Engine Control Module ECM G247 electrical harness J623 electrical connector T60 ter connector terminals minals or test box socket Specified value 1 5 Q Max If the specification is not obtained Check the wiring for a short circuit to each other Battery and Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals f necessary repair the faulty wiring connection If no malfunction is detected in the wiring Replace the Engine Control Module ECM J623 Refer to appropriate service manual Install the engine cover with air filter Refer to appropriate service manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read BaGeMemory i page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 6 Fuel
53. G299 If the specification was not obtained Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to appropriate service manual 3 Diagnosis and Testing 1 43 CAU TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Using a multimeter check the Charge Air Pressure Sensor G31 Intake Air Temperature IAT Sensor 2 G299 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector T94 terminals for an open circuit according to wiring diagram Charge Air Pressure Sen Engine Control Module ECM sor G31 Intake Air Tem J623 electrical connector T94 ter perature IAT Sensor 2 minals or test box sockets G299 electrical harness connector terminals Specified value 1 5 Q max If the specification was not obtained Check the wiring for a short circuit to each other Battery and Ground GND f necessary repair the faulty wiring connection Check the electrical harness connector for damage corrosion loose or broken terminals If no malfunction is detected in the wiring and if the voltage supply was OK Replace the Charge Air Pressure Sensor G31 Intake Air Temperature IAT Sensor 2 G299 Refer to appropriat
54. Generic Scan Tool Generic Scan Tool Edition 07 2011 Auer Test Procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Disconnect the Camshaft Adjustment Valve 1 exhaust N318 electrical harness connector Checking internal resistance Using a Multimeter check the Camshaft Adjustment Valve 1 exhaust N318 terminals 1 to 2 for resistance Specified value 5 0 to 8 0 Q at approx 20 C If the specified value was not obtained Replace Camshaft Adjustment Valve 1 exhaust N318 Re fer to Repair Manual If the specified value was obtained Checking voltage Switch the ignition on Using a MultimeterwiCheck ithe GamshaftiAdjustment Valve exhaust N318 electrical harness connector terminal 2 to Ground GND for voltage Switch the ignition off Specified value battery voltage If the specified value was not obtained Check the wiring connection from the Camshaft Adjustment Valve 1 exhaust N318 electrical harness connector termi nal 2 to the Engine Control Module ECM Power Supply Relay J271 socket 2 87 for an open circuit short circuit to Battery or Ground GND Check the wiring connection for damage corrosion lose or broken terminals If necessary repair the faulty wiring connection If the specified value was obtained Checking wiring If the manufacturers test box is being use
55. Knock Sen Knock Sen Knock Sen sor 2 Circuit Low Input Knock Sen sor 2 Circuit High Input Check the Engine Speed RPM Sen sor G28 Refer to gt 3 5 26 En gine Speed Sensor page 166 Check the Knock Sen sors G61 G66 Refer to gt 3 5 40 Knoc k Sensor page 190 Check the Knock Sen sors G61 G66 Refer to gt 3 5 40 Knoc k Sensor page 190 Check the Knock Sen sors G61 G66 Refer to 3 5 40 Knoc k Sensor page 190 Check the Knock Sen sors G61 G66 p Refer to 3 5 40 Knoc k Sensor page 190 Check the Knock Sen sors G61 G66 Refer to 3 5 40 Knoc k Sensor page 190 comparison with phase sensor no sig nal Signal fault counter com bustion gt 30 OR Signal fault counter meas uring window gt 2 Lower thresh old lt 0 70 V Signal range check lt 0 55 to 5 60 V Upper thresh old gt 1V Signal range check gt 16 50 to 92 V Lower thresh old lt 0 70 V Signal range check lt 0 59 to D60V Upper thresh old gt 1V Signal range check gt 16 50 to 92 V E Engine speed gt 2000 RPM Engine speed gt 1000 RPM or gt 2000 RPM for signal range check Signal circuit gt 1000 RPM Signal range check gt 2000 RPM ECT gt 41 C Engine load 30 to 37 50 Engine speed gt 1000 RPM or gt 2000 RPM for signal ran
56. Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to the Repair Manual Disconnect the Camshaft Position Sensor electrical harness connector Switch the ignition on Using a multimeter Check the Camshaft Position CMP Sen sor G40 electrical harness connector terminals 1 to 3 for voltage Specified value about 5 0 V amitSwiteh theignition OFF If the specified value was Not obtained Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter Check the Camshaft Position CMP Sen sor G40 electrical harness connector to the Engine Control Module ECM electrical harness connector T60 for an open circuit Refer to Wiring Diagrams for pin locations Camshaft Position CMP Engine Control Module ECM elec Sensor G40 electrical trical harness connector T60 termi harness connector termi nals or test box sockets nals Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring connection for an open circuit short circuit to Battery or Ground Check the wiring connection for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is found in the wiring and voltage supply was OK Replace the Camshaft Position CMP Sensor G40 If no malfunction is found in the wiring and vol
57. Pres sure Sensor Circuit Range Per formance P2432 Secondary Air Injection System Air Flow Pres sure Sensor Circuit Low P2433 Secondary Air Injection System Air Flow Pres sure Sensor Circuit High P2440 Secondary Air Injection System Switching Valve Stuck Open Check the the Secondary Air Injection Sensor 1 G609 Re ie to 3 5 35 Sec ondary Air In jection Sen sor 4 Check Check the Secondary Air Injection Sensor 1 G609 i to Re 3 5 35 Sec ondary Air In jection Sen sor 1 Check ing page 180 Check the Secondary Air Injection Sensor 1 G609 Re ki to 3 5 35 Sec ondary Air In jection Sen sor 1 Check ing page 180 Check the Combination Valve Refer 3 5 31 Sec ondary Air In jection Com bination Valve Checking page 174 Checkthe Secondary Air Injection Sensor 1 G609 Re big to A 5 35 Sec ondary Air In jection Sen sor 1 Check ing e Ls a E e OOOO cr 180 e Difference be tween SAI pressure and ambient pres sure NOT 60 to 60 hPa Signal voltage lt 0 5 V Spite voltage 4 5V SAI pressure sensor meas ured with SAI pressure vs modeled while SAI valve closed lt 64 8 e Secondary Air In jection done ECT 3 to 105 C IAT 4 5 to 143 3 C Altitude lt 2700 m SAI pressure sen sor ready 55 5 Sec 3 Diagnosis and Testing OS ieee 05
58. Rate 3 Diagnosis and Testing 55 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P0301 Cylinder 1 Check the emission Active after en e 1000 Continu Edition 07 2011 Misfire De Spark plugs threshold mis tected ifre rate MR gt Check the in 2 take system for leaks calibrated threshold mis Check the ifre rate MR gt fuel pres 1 4 sure Refer catalyst dam st st 2 3 5 2Fuel WRAS T Pump Pres sure Check Check Fuel Injectors N30 N31 N32 N33 N83 Refer to gt S3 5 27 Fuel Injec tors Check page 167 Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 lg nition Coil with Power Output Stage page 192 56 Rep Gr ST Generic Scan Tool gine start gt 200 RPM and 1 cam revolution Engine torque gt Nm Engine speed range idle 6000 RPM Fuel cutoff Not active ECT at start gt 20 C IAT gt 48 C if ECT start lt z720 than wait until actual ECT gt 18 C Rev gt 2 5 Misfire Rate 200 Rev 2 5 to 24 Misfire Rate ous 2 DCY immedi ate P0302 Cylinder 2 Misfire De tected Check the Spark plugs Check the in take syste
59. Refer to the appro priate service manual P0653 Sensor Ref Replace the signal voltage gt 0 5 Sec Continu erence Volt Engine Con 5 5 4V ous age A Cir trol Module ECM 2 DCY J623 Refer to the appro priate service manual P0657 Actuator Check the En signal voltage gt Engine Relay 0 5 Sec Continu gine Control 44 5 6V commanded off ous i Module 5 j ECM Power engine speed gt 40 2 DCY Supply Relay pm J271 Refer to 3 5 28 vliGM Voltage Sup ply Check page 170 P0658 Actuator Check the En signal voltage lt Engine Relay 0 5 Sec Continu gine Control 2 15 3 25 V commanded off ous i Module j ECM Power engine speed gt 40 2 DCY Supply Relay rpm J271 Refer to 3 5 28 ECM voltage Sup pl y Check ing page 170 P0659 Actuator Check the En signal current gt Engine Relay 0 5 Sec Continu gine Control 1 1A commanded on ous i Module it Hi ECM Power engine speed gt 40 2 DCY Supply Relay rpm J271 Refer to gt 3 5 28 ECM Voltage Sup ply Check page 170 3 Diagnosis and Testing 79 COD TT RS 2012 gt Auol DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0685 ECM PCM P0686 ECM PCM Power Re lay Control Circuit Low P0687 ECM PCM Power Re lay Control Circuit High
60. Resistance CAN active CAN message Time after ignition on 300 incorrect 500 mSec mSec bus for similar message If only 1 module has this DTC set that module may not be reading the information and require re placement 1 1 0 Rep Gr ST Generic Scan Tool TT RS 2012 gt NNN Generic Scan Tool Edition 07 2011 Auer 3 5 Diagnostic Procedures gt 3 5 1 Fuel Pump Voltage Supply Checking page 112 gt 3 5 2 Fuel Pump Pressure Checking page 113 gt 3 5 3 Fuel Pump Delivery Rate Checking page 115 gt 3 5 4 Fuel Pump Electrical Testing page 116 gt 3 5 5 Fuel Pressure Sensor Checking page 119 gt 3 5 6 Fuel Metering Valve Checking page 120 gt 3 5 7 EVAP System Checking for Leaks page 123 gt 3 5 8 EVAP Canister Purge Regulator Valve 1 Checking page 124 gt 3 5 9 Exhaust Flap Valve 1 Checking page 126 gt 3 5 10 Exhaust Gas Temperature Sensor 1 Checking page 128 gt 3 5 11 Intake Air Temperature Sensor and Manifold Absolute Pressure Sensor Checking page 130 gt 3 5 12 Intake Manifold Runner Position Sensor Checking page 134 gt 3 5 13 Leak Detection Pump Checking page 136 gt 3 5 14 Low Fuel Pressure Sensor Checking page 138 gt 3 5 15 Turbocharger Recirculating Valve Checking page 140 gt 3 5 16 Charge Air Pressure Se
61. Secondary Air Injection Solenoid Valve Checking page 179 gt 3 5 35 Secondary Air Injection Sensor 1 Checking page 180 gt 3 5 36 Camshaft Position Sensor Checking page 182 gt 3 5 37 Camshaft Position Sensor 3 Checking page 184 gt 3 5 38 Camshaft Adjustment Valve Checking page 186 gt 3 5 39 Camshaft Adjustment Valve 1 Exhaust page 188 gt 3 5 40 Knock Sensor Checking page 190 gt 3 5 41 Ignition Coil with Power Output Stage Checking page 192 gt 3 5 42 Speed Signal Checking page 194 gt 3 5 43 CAN Bus Terminal Resistance Checking page 195 gt 3 5 44 CAN Bus Terminal Resistance Transmission Control Module to Engine Control Module Checking page 197 3 5 1 Fuel Pump Voltage Supply Checking Special tools and workshop equipment required Multimeter Electrical connector test lead set Test conditions e Battery voltage 12 5 V e Fuse 47 in Fuse Panel C is OK e Fuel filter OK e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove rear seat bench Refer to the Repair Manual Test procedure for Fuel Delivery Unit Remove the floor sealing cover to access the Fuel Delivery Unit fuel pump Disconnect the harness connector from the Fuel Delivery Unit
62. Switch the ignition OFF Specified value Battery voltage If the specified value was Not obtained Check the wiring connection for an open circuit short circuit to Battery or Ground Refer to the wiring diagram Check the wiring connection for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If the specified value was obtained Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the Repair Manual Usingamultimeter Check theCamshaft Adjustment Valvel N205 lectrical harness connector terminal to the Engine Control Module ECM electrical harness connector T60 ter minal 45 for an open circuit Refer to Wiring Diagrams for pin locations 3 Diagnosis and Testing 1 87 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Camshaft Adjustment Valve Engine Control Module ECM 1 N205 electrical harness electrical harness connector T60 connector terminal terminal or test box socket Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring connection for an open circuit short circuit to Battery or Ground Check the wiring connection for damage corrosion loose or broken terminals If ne
63. Testing 1 07 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum Check the CAN Bus terminal re sistance Re fer to gt 3 5 43 CAN Bus Terminal Resistance page 195 Check the CAN Bus terminal re sistance Transmis sion Control Module J217 to En gine Control Module ECM J623 to U000 2 High Speed CAN Com munication Lost Com munication with TCM gt 3 5 44 CAN Bus Terminal Resistance Transmis sion Control Module to Engine Con trol Module page 197 Check for ABS module commu nication with scan tool If no communication with scan tool check power Lost Com munication With Anti Lock Brake trol Module module If power and ground are present per form diagnosis on the ABS module Refer to the Repair Man ual 1 08 Rep Gr ST Generic Scan Tool Global time out no mes sages received Time out no message re ceived No CAN mes sages received Time after ignition on 500 500 mSec Time after ignition on 5000 500 mSec Time after ignition on 500 500 mSec a Software In ith E CAN In cluster Audi only ae Invalid Data Received From Transmis sion Control Module TT RS 2012 gt CGD Editio
64. Testing 1 2 1 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Using a multimeter check the Fuel Metering Valve N290 electrical harness connector terminal 1 to Ground GND for voltage Specified value battery voltage Switch the ignition off If the specified value was not obtained Check the wiring from the Fuel Metering Valve N290 electri cal harness connector terminal 1 to the Engine Component Power Supply Relay J757 socket 8 87 for an open circuit or a short circuit to Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the wiring connection If no malfunctions are found in the wiring Checking wiring connections If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to appropriate service manual 1 22 Rep Gr ST Generic Scan Tool memes TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Using a multimeter check the Fuel Metering Valve N290 electrical harness connector terminal 2 to the Engine Control Module ECM J623 electrical harness connector T60 termi nal 60 for resistance Fuel Metering Valve N290 Engine Control Module ECM electrical harness connector J623 electrical connec
65. Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum A signal current lt ee Auol Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY 3 Diagnosis and Testing 53 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0273 Cylinder 5 Check the oa current lt Injection valve Edition 07 2011 Injector Cir cuit Low Cylinder 5 Injector Cir cuit High Turbo charger Su percharger Underboost Rationality check low Fuel Injector N83 Refer to 5435 97 Fuel Injectors page 167 Check the Fuel Injector N83 Refer to a3 5 27 Fuel Injectors page 167 Check the Charge Air Pressure Sen sor G31 Refer to 3 5 16 Charg e Air Pressure Sensor In take Air Tem perature Sen sor 2 Check ing page 142 Check the charge air system for proper seal Refer to En gine Mechani cal Fuel In jection and lg nition 21 Charge Air System 54 Rep Gr ST Generic Scan Tool difference ac tual pressure set point pres sure gt 30
66. air The Secondary Air Injection Combination Valve should close and seal Air should not be able to pass through the valve Operate the hand vacuum pump The Secondary Air Injection Combination Valve should open Air should be able to pass through the valve If combination valve does not open Replace the Secondary Air Injection Combination Valve Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 32 Secondary Air Injection Pump Motor Checking Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e The Secondary Air Injection SAI Pump Relay J299 fuse is OK The Engine Control Module ECM Power Supply Relay J271 and the Fuel Pump Relay J17 fuse OK e Battery voltage at least 12 5 V All electrical consumers switched off radiator fan must NOT run during test e A C switched off e The ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnos
67. air temperature must be between 10 C and 35 C Battery voltage must be a minimum of 12 5 volts Fuel tank level 1 4 to 3 4 full Drive Cycle Procedure Connect the scan tool Switch the ignition on and start the vehicle Idle the vehicle for 2 3 minutes This executes the O2 heater misfire secondary air injection fuel trim and purge system monitors Drive the vehicle at 45 55 mph for a continuous 7 minute pe riod avoid stopping This executes the evaporative O2 sen sor fuel trim and misfire monitors Accelerate the vehicle to an engine speed of 5000 RPM lift off the throttle until the engine speed is around 1200 RPM This executes the fuel cut off Accelerate the vehicle smoothly to 60 65 mph cruise con stantly for 5 min this executes the catalyst O2 sensor misfire fuel trim and purge system monitors Decelerate and idle the vehicle again for 3 minutes This ex ecutes the misfire secondary sir injection fuel trim and purge system monitors Check the status of the readiness code a Note Depending on the scan tool used The readiness code status may be displayed as complete passed or OK 3 Diagnosis and Testing 9 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Ifany engine monitor fails the drive cycle test Repeat the drive cycle test until all engine monitors have successfully run through and passed a Note When repeating the drive cycle operation for a failed eva
68. and workshop equipment required Multimeter Wiring diagram Test requirements e Secondary Air Injection SAI Pump Relay J299 fuses OK e Engine Control Module ECM Power Supply Relay J271 and the Fuel Pump Relay J17 fuse OK e Battery voltage at least 12 5 V All electrical consumers switched off e A C switched off The ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Checking voltage Remove the Secondary Air Injection SAI Pump Relay J299 Using a multimeter check the Secondary Air Injection SAI Pump Relay J299 socket 1 relay terminal 30 to Ground Specified value Battery voltage If the specified value was Not obtained Check the wiring connection from the Secondary Air Injection SAI Pump Relay J299 socket 1 relay terminal 30 to the Battery positive cable for an open circuit or high resistance Refer to Wiring Diagrams for pin locations Check the wiring connections for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If the specified value was obtained Using a multimeter check the resistance of the Secondary Air Injection SAI Pump Relay J299 socket 2 relay terminal 87 to Secondary Air Injection SAI Pump Motor V101 harness connector terminal 2 Specified value 1 5 Q Max Swi
69. angles vs calculated value gt 4 50 Secondary Pa rameters with Enable Condi tions Lambda con trol active lambda set point 1 engine load 6 100 Engine speed 1120 4000 RPM Fuel cutoff and catalyst heating not active ECT gt 50 C engine load changes lt 1 O2S front ready and heater active O2S rear ready and heater active catalyst gas temperature 350 to 8500 C mass flow 25 to 150 kg h 2nd lambda control loop active Secondary Pa rameters with En able Conditions Frequency of ing Time checks MIL Il lum 140 Sec 2DCY Monitoring eehed of Time checks MIL Length Illum Continu 2 DCY TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Pa Monitoring Frequency of sage cedure ria and Threshold rameters with En Time checks MIL Value able Conditions Length Illum P2106 Throttle Ac Check the Accelerator Pedal Posi tion Sensor D Circuit Low Input Accelerator Pedal Posi tion Sensor D Circuit High Input Accelerator Pedal Posi tion Sensor E Circuit Throttle Valve Control Mod ule J338 Refer to gt 3 5 19 Throt tle Valve Con trol Module page 149 Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator
70. appropriate service manual 1 38 Rep Gr ST Generic Scan Tool TT RS 2012 gt COTY Generic Scan Tool Edition 07 2011 Aue Checking voltage Disconnect the Low Fuel Pressure Sensor G410 electrical harness connector 2 Switch the ignition on Using a multimeter check the Low Fuel Pressure Sensor G410 electrical harness connector for voltage Low Fuel Pressure Sensor G410 Specified value electrical harness connector ter minas E 1 to Battery positive Battery voltage voltage 2 to Ground GND Near 0 volts 3 to Ground GND Switch the ignition off If the specified value was obtained Replace the Low Fuel Pressure Sensor G410 Refer to ap propriate service manual If the specified value was Not obtained Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to appropriate service manual Using a multimeter check the Low Fuel Pressure Sensor G410 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector T94 terminals for an open circuit according to the wiring dia gram Low Fuel Pressure Sensor Engine Control Module G410 electrical harness connec ECM J623 electrical con tor te
71. con siderably as well as significantly improves emissions quality during the cold running phase During a cold start the secondary air injection system injects air behind the exhaust valves This produces an oxygen rich exhaust gas causes the after burning and reduces the heat ing up phase of the catalytic converter In addition the secondary air injection system is switched on after a delay during idle after every subsequent engine start up to a maximum coolant temperature and is checked through on board diagnostic functions For all secondary air injection system component locations re moval installation procedures and torque specifications refer to the service manual 2 8 Ignition System For all ignition and glow plug system component locations re moval installation procedures and torque specifications refer to the service manual 2 9 Automatic Transmission The transmission control module receives information from trans mission related components and uses this information to control shifting and operation of the transmission For all automatic transmission component locations removal in stallation procedures and torque specifications refer to the serv ice manual 2 Description and Operation T CAU TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 3 Diagnosis and Testing gt 3 1 Preliminary Check page 8 gt 3 2 Readiness Code page 8 gt 3 3 Diagnostic Modes 01
72. ditions Length MIL Illum __ Illum P0190 Fuel Rail Rail P0191 Fuel Rail Control Valve high pressure side P0192 Fuel Rail Pressure Sensor A Circuit Low Input P0201 Injector Cir cuit Open Cylinder 1 P0202 Injector Cir P0203 Injector Cir cuit Open Cylinder 3 P0204 Injector Cir cuit Open Cylinder 4 Check the the Fuel Pressure 4 Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check in a page 119 Check the Fuel Pressure Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check page 119 Check the Pe voltage gt 8V actual pressure gt 17 5 mPa Signal voltage lt Fuel Pressure 0 2 V Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check Check the Fuel Injector N30 Refer to ee ad Fuel Injectors page 167 Check the Fuel Injector N31 Refer to 3 Do2 Fuel Injectors page 167 Check the Fuel Injector N32 Refer to 25 27 Fuel Injectors page 167 Check the Fuel Injector N33 Refer to gt 3 5 27 Fuel Injectors page 167 signal current lt signal current lt 2 1A signal current lt signal current lt red vag Ol Injection valve 0 5 Sec commanded OFF high pressure sys tem current lt 2 6 A Engine speed gt 80 RPM Injection valve 0 5 Sec commanded OFF high pressure sys tem current lt 2 6 A Engine speed gt 80 RPM Inj
73. for area ratio R2L and L2R gt 6 O2S ceramic temp front gt 720 C and gt 45 Sec since operation readiness Lambda control Closed loop Engine load 13 99 45 Engine speed 1200 3000 RPM engine load 20 O 0 ECT gt 60 C exhaust system lag time calcula tion Streckenzeit konstante 0 2 Sec load gradient threshold lt 3 gradient of ex haust system lag time calculation Streckenzeitkon stante lt 0 05 Sec Catalyst tempera ture gt 400 C lambda control A F Ratio set point stoichiometric pri or to diagnostic fuel steps lambda control 2 control loop deac tivated forced lambda os cillation deactiva ted relative fuel amount from tran sient compensa tion wall applied fuel dynamics and canister purge dy namics lt 1 tank leakage mon itor not active Canister purge monitoring not ac tive injection valves no fuel cut off for any of the cylinders Time since last measurement gt Sec open circuit pump current IP ready lie ee MS 2 60 Sec e Once e 2DCY P0137 O2 Circuit For CBTA Fed ONLY Check the Oxygen Sen sor 02S G130 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Heater duty cy cle 100 O2S ceramic temperature lt 720 C O2S ceramic temp lt 715 C Time after O2 heater on 35 Sec Delta O2S rear signal gt 2 00 V number of heater coupling
74. fully heated up modeled exhaust temperature gt 700 C 3 Diagnosis and Testing 4 1 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum matey voltage gt 1 0 P0138 O2 Circuit For CBTA Fed ONLY Check the Oxygen Sen sor O2S G130 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Oxygen Sen sor O2S G130 Refer O2 Circuit to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 r Check the Oxygen Sen sor O2S G130 Refer O02 Circuit to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 O2 Heater Circuit Bank 1 Sensor 2 Check the Oxygen Sen sor O2S Heater G130 Refer to gt 3 5 23 Oxy gen Sensor 1 after Catalytic Converter Heater page 158 42 Rep Gr ST Generic Scan Tool transient time at fuel cut off gt Sec Signal woltagey 461 to 499 V for gt 3 Sec exhaust gas temperature gt 600 C and internal re sistance gt 40000 Q internal resist ance gt 0 59 1 9 KQ continu ous 2 DCY engine speed gt 25 5 Sec e rpm O2S rear dewpoint exceeded O2S rear fully heated up modeled exhaust temperature gt
75. inflators are highly flammable Be extremely cautious when repairing a tire that may have been inflated using an aerosol tire inflator Keep sparks open flame or other sources of ignition away from the tire repair area Inflate and deflate the tire at least four times before breaking the bead from the rim Completely remove the tire from the rim before attempting any repair e When driving or riding in an airbag equipped vehicle never hold test equipment in your hands or lap while the vehicle is in motion Objects between you and the airbag can increase the risk of injury in an accident have read and understand these Cautions and Warnings back ORIN Page 3 of 3 2002 Audi of America Inc All rights reserved Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of America Inc its affiliated companies and its licensors All rights are reserved to make changes at any time without notice No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise nor may these materials be modified or reposted to other sites without the prior expressed written permission of the publisher Version 1 0
76. kPa commanded OFF high pressure sys tem current gt 4 2 A Engine speed gt 40 RPM Injection valve commanded ON Engine speed gt 40 RPM multiple 2 DCY Generic Scan Tool ee TT RS 2012 gt Hy Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P0300 Random Misfire De tected Check the Spark plugs Check the in take system for leaks emission threshold mis ifre rate MR gt 2 calibrated threshold mis Check the ifre rate MR gt fuel pres 1 4 sure Refer catalyst dam to isi 3 5 2Fuel MR gt 4 T Pump Pres sure Check Check Fuel Injectors N30 N31 N32 N33 N83 Refer to e ne af Fuel Injec tors Check Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 lg nition Coil with Power Output Stage page 192 Active after en gine start gt 200 RPM and 1 cam revolution Engine torque gt Nm Engine speed range idle 6000 RPM Fuel cutoff Not active ECT at start gt 20 C IAT gt 48 C if ECT start lt 20 C than wait until actual ECT gt 18 C 1000 Continu Rev gt ous O re 2 DCY Misfire Rate immedi 200 ate Rev 2 5 to 24 Misfire
77. manual Final procedures After the repair work the following work steps mustibe performed imthe followingsequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 18 Accelerator Pedal Position Sensor Ac celerator Pedal Position Sensor 2 Checking Special tools and workshop equipment required Multimeter Wiring diagram Test requirement The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK 3 Diagnosis and Testing 1 47 CAU TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Note Use only gold plated terminals when servicing the electrical har ness connector terminals in Accelerator Pedal Position Sensor G79 Accelerator Pedal Position Sensor 2 G185 Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diag
78. of the oil Do not pour oilsonto the ground down a drain or into a stream pond or lake Consult local ordinances that govern the disposal of wastes e The air conditioning A C system is filled with a chemical refrigerant that is hazardous The A C system should be serviced only by trained automotive service technicians using approved refrigerant recovery recycling equipment trained in related safety precautions and familiar with regulations governing the discharging and disposal of automotive chemical refrigerants e Before doing any electrical welding on vehicles equipped with anti lock brakes ABS disconnect the battery negative terminal ground strap and the ABS control module connector e Do not expose any part of the A C system to high temperatures such as open flame Excessive heat will increase system pressure and may cause the system to burst Page 2 of 3 2002 Audi of America Inc All rights reserved Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of America Inc its affiliated companies and its licensors All rights are reserved to make changes at any time without notice No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise nor may these materials be modifie
79. or broken terminals f necessary repair the faulty wiring connection If no malfunction is detected in the wiring and if the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to the appropriate service manual Install the engine cover with air filter Refer to the appropriate service manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 16 Charge Air Pressure Sensor Intake Air Temperature Sensor 2 Checking Observe all safety precautions gt 1 1 Safety Precautions page 2 View clean working conditions gt 1 2 Clean Working Conditions page 3 Use only gold plated terminals when servicing any component with gold plated electrical harness connector terminals Note The ChargeAir Pressute SensorP G31 ntake Air Temperature AT Sensor 2 G299 shares th same housing R pl cing either component replaces the other at the same time For wiring diagrams component locations and connector views Refer to the applicable wiring diagram Special tools and works
80. or broken terminals If necessary repair the wiring connection If no malfunction is found in the wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the appropriate service manual 1 46 Rep Gr ST Generic Scan Tool TT RS 2012 gt CGD Generic Scan Tool Edition 07 2011 Auer Using a multimeter check the Wastegate Bypass Regulator Valve N75 electrical harness connector terminal 2 to the En gine Control Module ECM J623 electrical harness connec tor T60 terminal 50 for an open circuit Wastegate Bypass Regulator Engine Control Module ECM Valve N75 electrical harness J623 electrical connector T60 connector terminal terminal or test box socket Specified value 1 5 Q max If the specification is not obtained Check the wiring for a short circuit to each other Battery and Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the wiring and if the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to the appropriate service manual Install the engine cover with air filter Refer to the appropriate service
81. page 3 a Note All manufacturers special tools as well as common tools may contain a manufacturer specific part number These tools may be substituted with an equivalent aftermarket tool or are avail able for purchase through the manufacturer Manufacturers special tools as well as common tools that con tain a manufacturer specific part number may be referenced in the test procedure illustrations showing the tool use or in Stallation If the manufacturer specific tool is not being used an equivalent aftermarket tool may be installed in the same manner as the manufacturers special tool gt 2 1 Fuel Supply System page 5 gt 2 2 Evaporative Emission System page 5 gt 2 3 Electronic Engine Power Control page 6 gt 2 4 Fuel Injection System page 6 gt 2 5 Engine Control Module page 6 gt 2 6 Exhaust System Components page 7 gt 2 7 Secondary Air Injection System page 7 gt 2 8 Ignition System page 7 gt 2 9 Automatic Transmission page 7 2 1 Fuel Supply System For all f eksapplysystermcompone nt locations removal installa tion procedures and torque specifications refer to the service manual 2 2 Evaporative Emission System The evaporative emission system has been designed to minimize the release of hydrocarbons from the fuel system into the atmos phere The evaporative system components all work together with t
82. rameters with Enable Condi tions Monitor ing Time Length Camshaft solenoid commanded OFF Engine speed gt 40 RPM Camshaft solenoid commanded Engine speed gt 40 RPM Camshaft solenoid commanded OFF Engine speed gt 40 RPM Frequency of checks MIL Il lum Continuous e 2DCY Continuous 2DGY Continuous 2 DCY Continuous 2 DCY Error Mes Exhaust cuit short to Batt Bank 1 Post Cata lyst Fuel Trim Sys tem Too Lean Bank 1 Diagnostic Pro Check the Camshaft Ad justment Valve 1 ex haust N318 Refer to 3 5 39 Cam shaft Adjust ment Valve 1 Exhaust page 188 Check the fuel pressure Re fer to gt 3 5 2 Fuel Pump Pres sure Check Ing Check the Oxygen Sen sor 02S Be hind Three Way Catalytic Converter TWC G130 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter Checking page 156 Malfunction Crite ria and Threshold Value signal current gt Deviation lambda control lt 3 TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer Secondary Pa rameters with Enable Condi tions Monitor Frequency of ing Time checks MIL Il Length lum Camshaft solenoid commanded Continuous 2DCY Engine speed gt 40 RPM Lambda con 100 Sec trol active 2 DCY lambda set point 1 engine load 16 100 Engine speed 1120
83. required Multimeter Wiring diagram Test requirements e The Speedometer G21 OK The Engine Control Module ECM J623 fuses OK 1 94 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt Yyy Generic Scan Tool Edition 07 2011 Auer e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Connect the scan tool Perform a road test with a vehicle speed greater than 5 Km h Using the scan tool Check the vehicle speed Diagnostic text Specified value Vehicle Speed Approx Vehicle Speed Compare the vehicle speed on the scan tool to the Speedom eter G21 Specified value a difference of no greater than 10 If the specified value was not obtained or no speed was displayed For models with ABS check the wheel speed signal in the ABS controller with a scan tool If the signal is not present or a code is set refer to the ABS diagnostics in the Repair Manual On other models check the wiring from the Engine Control Module ECM J623 to the Instrument Cluster Control Mod ule J285 for an open circuit Short to Battery or to Ground
84. results of components that are not continuously monitored Select Monitor ID A6 166 Select the desired Test ID or Hex ID Check specified values at idle Test ID Component or System Min Max Values __ Additional Information 0B 11 P0305 Misfire cylinder 5 Average val 0 65535 counts Rated to DTC P0305 in ue over 10 Driving Cycles he DTC summary table gt page 60 0C 12 P0305 a cylinder 5 in this Driving 0 65535 counts Psa to DTC P0305 in Cycle he DTC summary table gt page 60 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF 3 3 7 Diagnostic Mode 07 Read Faults De tected During the Current or Last Driving Cycle Mode 07 makes it possible to check emissions related faults which appeared during the current or last driving cycle pending DTCs 24 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer A pending DTC is saved the first time a fault is detected output via Mode 07 Ifthe fault is detected again by the end of the following driving cycle a confirmed DTC is entered output via Mode 03 and the MIL is activated If this malfunction is not de
85. signal duty cy cle gt 80 deviation vs calculated val ue gt 5 meee TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Monitor ing Time Length Frequency of checks MIL Il lum Secondary Pa rameters with Enable Condi tions Continuous 2 DCY Continuous 2 DCY Continuous g speed gt 400 2 DCY rpm ECT gt 10 C 3 Diagnosis and Testing 83 COLD TT RS 2012 gt Generic Scan Tool Edition 07 2011 Auol DTC Error Mes P2017 S sition Sen sor Switch Circuit Range Per formance Bank 1 P2088 Low Bank 1 P2089 High Bank 1 P2090 Diagnostic Pro cedure Check the In take Flap Mo tor V157 In take Manifold Runner Posi tion Sensor G336 Refer to gt 3 5 12 In take Manifold Runner Posi tion Sensor page 134 Check the Camshaft Ad justment Valve 1 N205 Refer to gt 3 5 38 Cam shaft Adjust ment Valve page 186 Check the Camshaft Ad justment Valve 1 N205 Refer to gt 3 5 38 Cam shaft Adjust ment Valve page 186 Check the Camshaft Ad justment Valve 1 ex haust N318 Refer to 3 5 39 Cam shaft Adjust ment Valve 1 Exhaust page 188 84 Rep Gr ST Generic Scan Tool Malfunction Crite ria and Threshold Value signal voltage gt 4 8 V signal voltage lt 2 15 3 25 V Signal current gt 2 2A signal voltage lt 2 15 3 25 V Secondary Pa
86. to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID 35 53 Variable Valve Timing Monitor Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 35 53 Select the desired Test ID or Hex D Check specified values at idle _Test ID__ Component or System Min Max Additional Information 80 128 128 P0011 Target Error Intake Bank 1 14 25 28 00 Refer to DTC P0011 in the DTC summary table gt page 28 81 129 POOOA Slow Response Intake Bank 1 14 25 28 00 Refer to DTC POOOA in the DTC summary table gt page 27 82 130 P0014 Target Error Intake Bank 1 19 KW Refer to DTC P0014 in the DTC summary table 83 131 POOOB Slow Response Intake Bank 1 7 KW 19 KW Refer to DTC POOOB in the DTC summary table If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF
87. tool For a further description of specific monitor information an OBD strat egy document is referenced throughout this manual This manual also contains the step by step procedures to accu rately diagnose and repair a component or system once a DTC has been set References to repair procedures and wiring dia grams can be found within the diagnostic test procedures TT RS 2012 gt i Generic Scan Tool Edition 07 2011 Aue 1 General Information 1 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 gt 1 1 Safety Precautions page 2 gt 1 2 Clean Working Conditions page 3 gt 1 3 On Board Diagnostic Systems page 3 gt 1 4 Malfunction Indicator Lamp Illumination page 4 gt 1 5 Controller Area Network Data Link page 4 gt 1 6 Electronic Power Control Warning Lamp page 4 1 1 Safety Precautions Check for Technical Bulletins that may supersede any information included in this manual AN WARNING Failure to follow these instructions may result in personal injury or possible death Check the Technical Bulletins for information cautions and warnings that may supersede or supplement any information included in this manual When performing the drive cycle operation pay strict attention to driving conditions and observe and obey all posted speed limits Test equipment must always be secured to the rear seat and operated by a second person
88. with En ing Time checks MIL Il Value able Conditions Length lum Edition 07 2011 ae Cold Start ee Cold Start Cold Start Monitoring VVT ex haust P062 Injection Valves Communi cation Check the Engine Speed RPM Sen sor G28 Refer to gt 3 5 26 En gine Speed Sensor page 166 Check the Engine Speed RPM Sen sor G28 Refer to gt 3 5 26 En gine Speed Sensor page 166 Check the Camshaft Adjustment Valve 1 N205 Refer to gt 3 5 38 Cam shaft Adjust ment Valve page 186 Check the Camshaft Adjustment Valve 1 ex haust N318 Refer to 3 5 39 Cam shaft Adjust ment Valve 1 Exhaust page 188 Check the Fuel injectors N30 N31 N32 N33 N83 Refer to Sate as Difference be tween comman ded spark timing vs actual value gt 20 Difference be tween actual and target position gt 5 CRK rev e difference be tween target position vs ac tual position gt 6 CA SPI communi cations check Identifier not active correct Fuel Injectors page 167 76 Rep Gr ST Generic Scan Tool Time during catalyst heat ing gt 10 Sec Commanded spark retard during catalyst heatings lt 80 Engine atidle lt 750 RPM vehicle speed 0 km h Engine load lt 100 01 and delta load lt 3 Time after en gine start gt 8 60 Sec minimal adjust ment gt 8 CA for
89. 0A page 10 gt 3 4 DTC Tables page 27 gt 3 5 Diagnostic Procedures page 111 3 1 Preliminary Check Prior to component diagnosis a preliminary check must be per formed Check the technical bulletins for information that may supersede any information included in this manual Connect the scan tool Switch the ignition on Using the scan tool check for any stored or related DTCs If other DTCs are stored Repair these DTCs first before performing the following pro cedure If no other DTCs are stored Using the scan tool erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 Perform a road test to attempt to duplicate the customers complaint If the DTC returns Perform the diagnostic procedure If the DTC does not return The fault is intermittent or a sporadic condition may exist Check the suspected component electrical harness and elec trical harness connectors for damage corrosion loose or broken terminals Ifnecessary repair the faulty wiring connection Perform a road test to verify the repair If the DTC returns Perform the diagnostic procedure If the DTC does not return The fault may have been the result of a loose electrical connec tion Generate readiness code Refer to gt 3 2 Readiness Code page 8 3 2 Readiness Code Readiness code description Dia
90. 1 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0441 Evaporative Check the Emission Purge Valve for restrictions and EVAP system Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 page 124 For Model Year 2011 gt Check the Leak Detec tion Pump V144 Refer to gt 3 5 13 Leak Detection Pump page 136 deviation lamb da control 4 4 AND deviation idle control lt 20 ignition on 25 Sec Once Engine speed idle e 2DCY Engine speed De viation lt 100 RPM integrated mass air flow Purge Valve gt 80 250 g ECT gt 59 3 C and ECT at start lt 59 3 C ambient air tem perature gt 3 8 C Altitude lt 2600 m ambient air tem perature engine start gt 3 8 C 3 Diagnosis and Testing 69 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0442 Evaporative Check the time for pres evap purge valve 150 Sec e Once issi EVAP Sys sure drop lt closed y tem for 1 9
91. 192 P2313 Ignition Coil Check the Ig Signal pov Engine speed gt 5 i Continu nition Coils gt 5 2 6 0V 1500 RPM ous with Power Output 2 DCY Stage Refer to gt 3 5 41 lg nition Coil with Power Output Stage page 192 oN Evaporative Check the Signal Raliage EVAP pump elec Leak Detec gt 4 7 to 5 4 tric drive comman ded off to gt 3 5 13 Leak Detection Pump page 136 1 00 Rep Gr ST Generic Scan Tool TT RS 2012 gt GD Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum __ Illum ia Evaporative Emission a Evaporative Emission y P2400 Evaporative Emission y Control Cir cuit Open Check the the Leak Detec tion Pump V144 Refer 7 3 5 13 Leak Detection Pump Checking page 136 Check the Leak Detec tion Pump V144 Refer K 3 5 13 Leak Detection Pump Checking Check the Leak Detec 3 5 13 Leak Detection Pump Checking page 136 P2401 Evaporative For Model Year Emission 2011 gt y Check the Leak Detec i tion Pump Control Cir LDP cuit Low V144 Refer 2 3 5 13 Leak Detection Pump Checking page 136 2011 gt P2402 Evaporative For Model Year Emission Check t
92. 2 DCY Secondary pressure gt 50 120 kg h pr eon are Delta engine load lay Ref io ee 10 to 10 Modeled catalyst 73 5 33 Sec temp lt 700 C ondary Air In jection Pump ECT 3 to 105 C een Altitude lt 2700 m i IAT 4 5 to 143 3 C Check the Sec SAI commanded ondary Air Injec off to gt 3 5 32 Sec Check the e Signal voltage Air valve comman 0 5 Sec 2 DCY Secondary 4 70 to 5 40 V ded OFF Air Injection Solenoid Sue speed gt 80 Valve RP N112 Refer to gt 3 5 34 ET Air Injection Solenoid Valve Checking page 179 Check the e Signal voltage Air valve comman i 5 Se 2 DCY Secondary 0 to 3 25 V ded OFF He ee OR Enma speed gt 80 Valve e Signal current N112 Refer gt 2 20 A OR to 3 534 Ne comman Secon Air Injection Si speed gt 80 Solenoid RP Valve Checking page 179 Check the e Signal voltage Pump relay com 0 5 Sec 2 DCY Secondary 4 70 to 5 40 V manded OFF Air Injection Solenoid Se speed gt 80 Valve N112 Refer to gt 3 5 34 Bacon an Air Injection Solenoid Valve Checking page 179 3 Diagnosis and Testing Ur eae CAU TT RS 2012 gt Avo Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum Edition 07 2011 P0420 Catalyst System Effi ciency Be old Check Long Term F
93. 2 to the Instrument Cluster electrical harness connector for an open circuit or a short refer to the wiring diagram Refer to Wiring Diagrams for pin locations Ambient Air Temperature Instrument Cluster J285 electri Sensor G17 electrical har cal connector T32 terminals ness connector terminals Specified value 1 5 Q max If the specified value was Not obtained Check the wiring for an open high resistance or short circuit to Battery or ground Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If the specified value was obtained Replace the Instrument Cluster Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Diagnosis and Testing 1 65 CAY TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 26 Engine Speed Sensor Checking a Note Use only gold plated terminals when servicing terminals in the ee as harness connector of the Engine Speed RPM Sensor Special tools and w
94. 2012 gt Aue Generic Scan Tool Edition 07 2011 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 14 Low Fuel Pressure Sensor Checking Observe all safety precautions gt 1 1 Safety Precautions page 2 View clean working conditions gt 1 2 Clean Working Conditions page 3 Use only gold plated terminals when servicing any component with gold plated electrical harness connector terminals For wiring diagrams component locations and connector views Refer to the applicable wiring diagram Special tools and workshop equipment required multimeter Wiring diagram Test requirements The Fuel Pump FP Control Module J538 OK e The Engine Control Module ECM J623 fuses OK The fuel filter OK e The battery voltage at least 12 5 V All electrical consumers switched off radiator fan must NOT run during test e A C switched off The fuel tank at least 1 4 filled e The ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to
95. 2DCY Emission 2011 gt gt 4 70 5 40 V noid valve com Check the manded off gt 3 5 13 Leak Detection Pump Evaporative For Model Year Signal current e EVAP pump sole 0 5 Sec e 2DCY Emission 2011 gt gt 2 2t04A noid valve com Check the manded on Leak Detec OR _ ircui tion Pump Signal voltage OR LDP lt 2 74 to 3 26 V e EVAP pump sole V144 Refer noid valve com to manded off 2 3 5 13 Leak Detection Pump page 136 3 Diagnosis and Testing T 1 GOND TT RS 2012 gt Auol Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0455 Evaporative Leak Detec ted gross leak Check the EVAP Sys tem for Leaks Refer to 3 5 7 EVAP System Checking for Leaks page 123 Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 page 124 For Model Year 2011 gt Check the Leak Detec tion Pump LDP V144 Refer to gt 3 5 13 Leak Detection Pump page 136 72 Rep Gr ST Generic Scan Tool Time for pres sure drop lt 0 95 Sec evap purge valve closed ECT at start gt 4 35 C LDP activated Se lected gear any drive ambie
96. 2DCY jections after engine start gt 1500 Engine speed lt 860 RPM Mass air flow lt 35 kg h ECT gt 59 C IAT lt 85 C Ratio manifold pressure to ambient pres sure gt 0 20 Delta part load adaptation ready Lambda con trol closed loop EVAP purge valve closed Valve overlap lt 40 CRK 3 Diagnosis and Testing 89 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Pa sage cedure ria and Threshold rameters with En Value able Conditions Edition 07 2011 Monitoring Frequency of Time checks MIL Length Illum P2181 Cooling P2184 Engine Coolant Tempera ture Sensor 2 Circuit Low Engine Coolant Tempera ture Sensor 2 Circuit High Check the Cooling sys tem thermo stat Refer to the Repair Manual Check Engine Coolant Tem perature ECT Sensor G62 or G83 Refer to gt 3 5 24 En gine Coolant Temperature Sensor 1 or 2 page 160 Check Engine Coolant Tem perature ECT Sensor G83 Refer to gt 3 5 24 En gine Coolant Temperature Sensor 1 or 2 page 160 Check Engine Coolant Tem perature ECT Sensor G83 Refer to gt 3 5 24 En gine Coolant Temperature Sensor 1 or 2 page 160 90 Rep Gr ST Generic Scan Tool gral 4 0 ECT too low af ter sufficient mass air flow interval 76 5 AND mass air inte 17 0 kg ECT outlet gt
97. 32 N33 N83 Refer to gt 3 5 20 Fuel Injectors page 167 Check the Fuel injectors N30 N31 N32 N33 N83 Refer to a3 5 28 Fuel Injectors page 167 Check the Fuel injectors N30 N31 N32 N33 N83 Refer to 2 2927 Fuel Injectors page 167 Accelerator Pedal Posi tion Sensor D E Volt age Corre lation Fuel Injec tor Group A Supply Volt age Circuit short to ground Fuel Injec tor Group B Supply Volt age Circuit Short to ground 88 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 Malfunction Crite Secondary Pa ria and Threshold rameters with En Value able Conditions e Signal voltage gt 2 5V Signal voltage 0 24 Sec sensor 1 vs 2 gt 0 12 to 0 70 V short to battery e injection valve 0 5 Sec plus commanded e signal current lt off 2 6A engine speed gt short to ground 40 rpm e signal current gt 14 9A short to battery injection valve 0 5 Sec plus commanded e signal current lt off 2 6A engine speed gt short to ground 40 rpm signal current gt 14 9A short to battery injection valve 0 5 Sec plus commanded e signal current lt off 2 6A engine speed gt short to ground 40 rpm e signal current gt 14 9A Monitoring Frequency of Time checks MIL Length Illum Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY P2177 System Too
98. 4000 RPM Fuel cutoff and catalyst heating not active ECT gt 50 C engine load changes lt 1 O2S front ready and heater active O2S rear ready and heater active catalyst gas temperature 350 to 8500 C mass flow 25 to 150 kg h 2nd lambda control loop active 3 Diagnosis and Testing 85 COD TT RS 2012 gt Auol DTC Error Mes sage P2097 Post Cata lyst Fuel Trim Sys tem Too Rich Bank 1 DTC Error Mes Diagnostic Pro sage cedure P2101 Throttle Ac tuator Con trol Motor Circuit Range Per formance Generic Scan Tool Diagnostic Pro cedure Check the fuel pressure Re fer to gt 3 5 2 Fuel Pump Pres sure Check Check the Oxygen Sen sor 02S Be hind Three Way Catalytic Converter TWC G130 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Three Way Catalytic Con verter TWC Refer to gt 3 5 30 Cat alytic Convert er Checking page 173 Check the Throttle Valve Control Mod ule J338 Refer to gt 3 5 19 Throt tle Valve Con trol Module page 149 86 Rep Gr ST Generic Scan Tool Edition 07 2011 Malfunction Crite ria and Threshold Value e Deviation lambda control Malfunction Crite ria and Threshold Value signal range check e Duty cycle gt 80 ECM power stage no failure rationality check e deviation throt tle valve
99. 44 Generic Scan Tool Edition 07 2011 Auer Direct Shift Gearbox DSG Engine Control Module J623 elec Mechatronic J743 electri trical connector T94 terminals cal harness connector ter minals 15 Can Bus Low 67 Can Bus Low 10 Can Bus High 68 Can Bus High Specified value 1 5 Q Max If the specified resistance was Not obtained Check the wiring connection for an open circuit short circuit to Battery or Ground Check the wiring connection for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is found in the wiring Replace the Engine Control Module J623 Refer to the Re pair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 7 14 2011 3 Diagnosis and Testing 1 99 Cautions amp Warnings Please read these WARNINGS and CAUTIONS before proceeding with maintenance and repair work You must answer that you have read and you understand these WARNINGS and CAUTIONS before you will be allowed to view this information
100. 5 2 15 e 2DCY Leaks Refer Sec depend ECT at start gt to ing on altitude 4 35 C a and IAT LDP activated Se 73 5 7 EVAP lected gear any System drive Checking for Leaks ambient pressure page 123 gt 743 5 hPa Check the number of diagno Evaporative sis attempts lt 15 Emission o EVAP Can aa C ister Purge delta ambient Regulator pressure lt 300 Pa Valve N80 Refer to IAT drop after en gt gine start lt 7 K 3 5 8 EVAP Canister Time after engine Purge Regu start gt 175 1200 lator Valve 1 Sec Checking ECT 4 115 C page 124 Vehicle speed gt For Model Year 19 mph 2011 gt EbeCk the selected gearany Leak iDetec drive tion Pump LDP V144 Refer to gt 3 5 13 Leak Detection Pump page 136 Check the Signal voltage EVAP purge valve 0 5 Sec Evaporative 44 56V commanded OFF el Engine speed gt EVAP Can trol Valve ister Purge 40 RPM Circuit Regulator Open Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 page 124 70 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0447 Evaporative For Model Year Signal voltage e EVAP pump sole 0 5 Sec e
101. 5 20 Heat ed Oxygen Sensor page 152 Check the Secondary Air Injection AIR Pump Relay J299 Refer to gt 3 5 33 Sec ondary Air In jection Pump Relay Check O2S signal front 1 49 to 1 51 V Fuel cutoff gt 3 Sec Delta lambda controller gt 0 10 O2S signal front gt 4 70 V and Internal re sistance gt 950 Q O2S signal front lt 0 20 V And Internal re anoe gt 950 O2S signal front 1 47 to 1 53 V and gt 950 Q Signal voltage 0 to 3 26 V O2S ceramic 30 Sec 2DCY temp gt 720 C engine start completed Lambda con trol active Heater active engine speed gt 25 rpm mass air inte gral gt 0 2 kg Lambda modu lation gt 0 02 Heater control 10 Sec 2DCY active engine start completed engine speed gt 25 RPM O2S ceramic temperature gt 720 C Modeled ex 30 5 Sec 2DCY haust gas temp lt 750 O No fuel cutoff gt 2 Sec Heater control active Pump relay 0 5 Sec 2DCY commanded OFF Engine speed gt 80 RPM 3 Diagnosis and Testing 93 OED TT RS 2012 gt Auol DTC Error Mes Diagnostic Pro sage cedure Check the Secondary Air Injection AIR Pump Relay J299 Refer Control Cir cuit High to gt 3 5 33 Sec ondary Air In jection Pump O2 Sensor Signal Stuck Lean Bank 1 Sen sor 2 Check the Oxygen Sen sor O2S G130 Refer to gt 3 5 22 Oxy gen Sensor after Ca
102. 50 C lambda set point 1 Lambda con trol active O2 heaters ready no DTCs second control loop active Fuel cutoff cat alyst heating SAI not active trim control post catalyst lt 6 Catalyst temp 350 to 850 C engine load changes lt 7 engine speed 1120 4000 RPM engine load 16 100 mass air flow 25 to 150 kg h ECT gt 50 C lambda set point 1 Lambda con trol active O2 heaters ready no DTCs second control loop active Fuel cutoff cat alyst heating SAI not active Monitoring Frequency of Time checks MIL Length Illum 200 Sec e Continu ous e 2 DCY e Continu ous e 2 DCY memes TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Pa Monitoring Frequency of sage cedure ria and Threshold rameters with En Time checks MIL Value able Conditions Length Illum P2237 O2 Sensor Positive Current Control Cir cuit Open Bank 1 Sensor 1 O2 Sensor Control Cir cuit Open Secondary Air Injection System Control Cir cuit Low Check the Heated Oxy gen Sensor HO2S G39 Refer to gt 3 5 20 Heat ed Oxygen Sensor page 152 Check the Heated Oxy gen Sensor HO2S G39 Refer to gt 3 5 20 Heat ed Oxygen Sensor page 152 Check the Heated Oxy gen Sensor HO2S G39 Refer to gt 3
103. 7 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum 0355 Ignition Coil E Primary Secondary Circuit Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 Ig nition Coil with Power Output Stage page 192 Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 Ig nition Coil with Power Output Stage page 192 Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 Ig nition Coil with Power Output Stage page 192 Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 Ig nition Coil with Power Output Stage page 192 signal current lt 4 95 8 82 mA Engine speed gt signal current lt 4 95 8 82 mA Engine speed gt signal current lt 4 95 8 82 mA Engine speed gt signal current lt 4 95 8 82 mA Engine speed gt e continu ous 2 DCY e continu ous 2 DCY continu ous 2 DCY continu ous 2 DCY 3 Diagnosis and Testing 63 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Cr
104. 700 C for 10 Sec O2S rear dewpoint gt 100 je 2DCY exceeded Sec modeled exhaust temperature gt 400 C engine speed gt 25 100 Sec continu rpm ous O2S rear dewpoint 2 DCY exceeded O2S rear fully heated up modeled exhaust temperature gt 700 C for 10 Sec continu ous 2 DCY Heater comman ded ON Modeled exhaust gas temp 400 650 C Engine shutoff time gt 120 Sec during ECM keep alive time after shutoff lt 500 Sec Fuel cutoff not ac tive Number of checks 10 P0144 02 Sensor Circuit High P0145 O2 Sensor Circuit Slow Check the the Oxygen Sen sor O2S 2 Behind Three Way Catalytic Converter TWC G130 to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Oxygen Sen sor 02S 2 Behind Three Way Catalytic Converter TWC G130 to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Oxygen Sen sor 02S 2 Behind Three Way Catalytic Converter TWC G130 to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Oxygen Sen sor 02S 2 Behind Three Way Catalytic Converter TWC G130 to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Refer Refer Refer Refer Delta voltage 1 step at heater switching gt Heater cou pling gt 6 times Signal voltage 40 to 60 V for gt
105. Avoid breathing asbestos fibers and asbestos dust Breathing asbestos can cause serious diseases such as asbestosis or cancer and may result in death e Finger rings should be removed so that they cannot cause electrical shorts get caught in running machinery or be crushed by heavy parts e Before starting a job make certain that you have all the necessary tools and parts on hand Read all the instructions thoroughly do not attempt shortcuts Use tools that are appropriate to the work and use only replacement parts meeting Audi specifications Makeshift tools parts and procedures will not make good repairs e Catch draining fuel oil or brake fluid in suitable containers Do not use empty food or beverage containers that might mislead someone into drinking from them Store flammable fluids away from fire hazards Wipe up spills at once but do not store the oily rags which can ignite and burn spontaneously e Use pneumatic and electric tools only to loosen threaded parts and fasteners Never use these tools to tighten fasteners especially on light alloy parts Always use a torque wrench to tighten fasteners to the tightening torque listed e Keep sparks lighted matches and open flame away from the top of the battery If escaping hydrogen gas is ignited it will ignite gas trapped in the cells and cause the battery to explode e Be mindful of the environmentand ecology Before you drain the crankcase find out the proper way to dispose
106. Battery Voltage Voltage 3 to Ground 4 to ECM pin T60 55 1 5 O Max Switch the ignition OFF If the specified value was obtained Replace the Secondary Air Injection Sensor 1 G609 If the specified value was Not obtained Checking wiring connections If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Secondary Air Injection Sensor 1 G609 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector T60 terminals for an open circuit Refer to Wiring Diagrams for pin locations 3 Diagnosis and Testing 1 81 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Secondary Air Injection Engine Control Module ECM Sensor 1 G609 electrical J623 electrical connector T60 ter harness connector termi minals or test box socket nals Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open high resistance or short to ground Check the electrical harness connector for damage corrosion loose or broken terminals f necessary repair the faulty wiring connection If no malfunction is detected in the wiring Replace the Engine Control Module EC
107. C Error Mes Diagnostic Pro Malfunction Crite Secondary Pa Monitoring Frequency of sage cedure ria and Threshold rameters with En Time checks MIL Value able Conditions Length Illum Check the O2S rearnot e Oxygen Sen sor O2S 2 Behind Three Way Catalytic Converter TWC G465 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 oscillating at reference lt 0 64 to 0 65 V and enrich ment after stuck lean 20 Mass airflow 100Sec e 2DCY 22 to 120 kg h Modeled ex haust gas temp gt 300 C O2S rear read iness gt 10 Sec 2nd lambda control closed loop 3 Diagnosis and Testing 95 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Pa Monitoring Frequency of sage cedure ria and Threshold rameters with En Time checks MIL Value able Conditions Length Illum P2275 02 Sensor Check the Signal Oxygen Sen Stuck Rich sor 02S 2 Bank 1 Sen Behind Three sor 3 Way Catalytic Converter TWC G465 Refer O2S rear not oscillating at reference gt 0 64 to 0 65 V and enrich ment after stuck rich 15 gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 96 Rep Gr ST Generic Scan Tool Sensor voltage of gt 0 15 V af ter oxygen mass flow af ter fuel cutoff gt 1500 to 3000 mg with gt 1 check Mass air flow 22 to 120 kg h
108. C memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 44 CAN Bus Terminal Resistance Trans mission Control Module to Engine Con trol Module Checking Special tools and workshop equipment required Multimeter Wiring diagram Test requirement e A CAN Bus malfunction was recognized e The Engine Control Module ECM J623 Direct Shift Gear box DSG Mechatronic J743 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off 3 Diagnosis and Testing 1 97 CAU TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched Off Function The Engine Control Module J623 communicates with other CAN Bus capable control modules The control modules are connected by two Data Bus wires which are twisted together CAN High and CAN Low and exchange information messages Missing information on the CAN Bus is recognized as a malfunction by the Engine Control Module J623 and the other control modules connected to the CAN Bus Trouble free operation of the CAN Bus requires that it have a ter minal
109. CMP Sen sor 3 G300 electrical harness connector to the Engine Con trol Module J623 electrical harness connector Camshaft Position CMP Engine Control Module J623 Sensor 3 G300 electrical electrical harness connector termi harness connector termi nals or test box sockets nals Specified value 1 5 Q Max If the specified value was not obtained Check the wiring connection for an open circuit short circuit to Battery or Ground GND Check the wiring connection for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is found in the wiring and voltage supply was OK Replace Camshaft Position CMP Sensor 3 G300 Refer to If no malfunction is found in the wiring and voltage supply was not Replace the Engine Control Module J623 Refer to appro priate service manual o Assembly is performed in the reverse order of ithe removal note the following Final procedures After repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 38 Camshaft Adjustment Valve C
110. Check the Camshaft Ad justment Valve 1 N205 Refer to 3 5 38 Cam shaft Adjust ment Valve page 186 Check the Camshaft Ad justment Valve 1 N205 Refer to gt 3 5 38 Cam shaft Adjust ment Valve page 186 Check the Camshaft Ad justment Valve 1 ex haust N318 Refer to gt 3 5 39 Cam shaft Adjust ment Valve 1 Exhaust page 188 28 Rep Gr ST Generic Scan Tool actual pressure lt 0 8 MPa actual pressure gt 0 8 MPa Signal voltage gt 4 740 5 60 V adjustment an gle difference gt 3 2 CA signal voltage gt 4 56V Cam position ac tuator comman ded off Engine speed gt 40 RPM Engine speed gt 550 RPM ECT gt 7 5 C Time after engine start gt 3 5 Sec number of checks normal operation 3 time length for more than 1 5 Sec Cam position ac tuator comman ded off Engine speed gt 40 RPM ee TT RS 2012 gt Hy Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum __ Illum P0014 Exhaust Camshaft Position Ac tuator Cir cuit stuck Bank P0016 Camshaft Position Sensor An gular Offset Check P0017 Camshaft Position Sensor An gular Offset Check Ea Fuel Pump Open circuit rae Fuel P
111. D TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions MIL Illum Edition 07 2011 P0172 System Too Rich Bank 1 additive Check the fuel pressure Re Adamie value fer to gt 3 5 2 Fuel Pump Pres sure Check Check the Fuel Pressure Sensor G247 Refer to gt 3 5 5 uel Pressure Sen sor Check Check the Fuel injectors N30 N31 N32 N33 N83 Refer to gt 39 27 Fuel Injectors page 167 Check the Heated Oxy gen Sensor HO2S G39 Refer to gt 3 5 20 Heat ed Oxygen Sensor page 152 Check the Oxygen Sen sor 02S Be hind Three Way Catalytic Converter TWC G130 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP eric Span ibtelr Purge Regu lator Valve 1 continu ous 2 DCY Engine speed e 560 880 RPM ee Engine load 12 34 mass air flow 6 25kg h ECT gt 60 0 C lambda control closed loop evap purge valve clos d Seen eae TT RS 2012 gt Hy Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame
112. Data Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID A2 162 Select the desired Test ID or Hex ID Check specified values at idle Test ID Component or System Min Max Values _ Additional Information _ 0B 11 P0301 Cylinder 1 Data averaged dur 0 65535 counts Refer to DTC P0301 in ing last 10 drive cycles the DTC summary table gt page 56 0C 12 P0301 Cylinder 1 Data averaged dur 0 65535 counts Refer to DTC P0301 in ing current drive cycle the DTC summary table gt page 56 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF 22 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Monitor ID A3 163 Mis Fire Cylinder 2 Data Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID A3 163 Select the desired Test ID or Hex ID Check specified values at idle Test ID Component o
113. Diagnostic Mode 03 Read DTG Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 40 Knock Sensor Checking The following procedure is used to diagnose all Knock Sensors Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e The mounting bolt of Knock Sensor KS 1 G61 Knock Sen sor KS 2 G66 tightened to 20 Nm e The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK 1 90 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover Refer to the Repair Manual a Note Before disconnecting the Knock Sensor electrical harness con nectors mark the component location Disconnect the Knock Sensor KS 1 G61 electric
114. Erase DTC Mem ory Diagnostic Mode 04 makes it possible to erase the DTC memory and to reset all emissions related diagnostic data In that way all faults in the DTC memory in the ECM and TCM are erased The adaptation values may also be reset Emissions related diagnostic data includes as applicable MIL Status Number of DTCs Readiness bits Confirmed DTCs Pending DTCs DTC that belongs to freeze frame Freeze frame data Test results of specific diagnostic functions Distance driven with MIL ON Number of warm up cycles after erasing the DTC memory Distance driven after erasing the DTC memory ff ooo oooO OH OM Misfire counter PES Depending on scan tool and protocol used diagnostic mode 04 and the information provided may be referred to by a different name 3 Diagnosis and Testing 1 5 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Procedure Connect the scan tool Switch the ignition on Select Diagnostic Mode 03 Interrogating fault memory Then select Mode 4 Reset delete diagnostic data The scan tool will display Diagnostic data are being erased Switch the ignition OFF 3 3 5 Diagnostic Mode 05 Read Oxygen Sensor Monitoring Test Results Note Mode 05 may not be supported on all systems On systems where Diagnostic Mode 05 is not supported refer to Diagnostic Mode 6 for oxygen sensor Monitoring Test Results Test require
115. For vehicles equipped with an anti theft radio be sure of the correct radio activation code before disconnecting the battery or removing the radio If the wrong code is entered when the power is restored the radio may lock up and become inoperable even if the correct code is used in a later attempt e f you are going to work under a vehicle on the ground make sure that the ground is level Block the wheels to keep the vehicle from rolling Disconnect the battery negative terminal ground strap to prevent others from starting the vehicle while you are under it e Do not attempt to work on your vehicle if you do not feel well You increase the danger of injury to yourself and others if you are tired upset or have taken medicine or any other substances that may impair you or keep you from being fully alert e Never run the engine unless the work area is well ventilated Carbon monoxide CO kills e Always observe good workshop practices Wear goggles when you operate machine tools or work with acid Wear goggles gloves and other protective clothing whenever the job requires working with harmful substances e Tie long hair behind your head Do not wear a necktie a scarf loose clothing or a necklace when you work near machine tools or running engines If your hair clothing or jewelry were to get caught in the machinery severe injury could result Page 1 of 3 2002 Audi of America Inc All rights reserved Information containe
116. IL Length Illum Number of in 40 Sec 2DCY jections after engine start gt 1500 Engine speed lt 860 RPM Mass air flow lt 35 kg h ECT gt 59 C IAT lt 85 C Ratio manifold pressure to ambient pres sure gt 0 20 Delta part load adaptation ready Lambda con trol closed loop EVAP purge valve closed Valve overlap lt 40 CRK Number of in 40 Sec 2DCY jections after engine start gt 1500 Engine speed lt 860 RPM Mass air flow lt 35 kg h ECT gt 59 C IAT lt 85 C Ratio manifold pressure to ambient pres sure gt 0 20 Delta part load adaptation ready Lambda con trol closed loop EVAP purge valve closed Valve overlap lt 40 CRK 3 Diagnosis and Testing 9 1 COD TT RS 2012 gt Auol DTC Error Mes Diagnostic Pro sage cedure Check the Heated Oxy gen Sensor HO2S G39 Refer to gt eonded OAHle at ediOxygen Sensor page 152 Check the Heated Oxy gen Sensor HO2S G39 Refer to gt 3 5 20 Heat ed Oxygen Sensor Checking page 152 92 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 Malfunction Crite Secondary Pa ria and Threshold rameters with En Value able Conditions trim control post catalyst lt Catalyst temp 350 to 850 C engine load changes lt 7 engine speed 44 20 in r4000 RPM engine load 16 100 mass air flow 25 to 150 kg h ECT gt
117. M J623 Refer to the Repair Manual Install the engine cover with air filter Refer to the Repair Man ual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 36 Camshaft Position Sensor Checking Note Use only gold plated terminals when servicing terminals in har ness connector of Camshaft Position CMP Sensor G40 Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N A C switched off 1 82 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer e Ground connections between engine transmission chassis OK e Ignition switched OFF Test procedure Perform a preliminary check to verify the customers complaint Refer to gt 3 1
118. Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL llum __ Illum P0699 Sensor Ref Ref erence Volt age A Cir cuit High Replacethe the e am voltage gt Engine Con 5 4 V trol Module J623 Refer to the appro priate service manual e Continu ous e 2DCY DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency of sage cedure ria and Threshold ters with Enable ing Time checks MIL Value Conditions Length Illum m Fuel Sys tem out of range P12A Fuel Rail Pressure Sensor In appropri ately Low Check the fuel pres sure Refer to gt 3 5 2 Fuel Pump Pres sure Check portion of 3rd lambda control loop gt 0 03 Check the Oxygen Sen sor 02S Behind Three Way Catalytic Converter TWC G130 fer to Re 73 5 22 Oxy gen Sensor after Catalyt ic Converter page 156 Check the Fuel Pres sure Sensor G247 Re fer to gt 3 5 5 Fuel Pressure Sensor page 119 pressure con trol activity gt 2 50 mPa AND fuel trim activi ty lt 0 80 Engine speed 1400 to 3600 RPM Modeled exhaust gas temp 350 1000 C Engine load 20 3 to 54 8 All O2 sensors in closed loop no faults Continu ous 2 DCY engine speed 600 900 RPM evap purge adap tation l
119. Metering Valve Checking The following procedure is used to diagnose the Fuel Metering Valve N290 which is controlled by Engine Control Module J623 Special tools and workshop equipment required multimeter Wiring diagram 1 20 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt y Generic Scan Tool Edition 07 2011 Auer Test requirements The Engine Component Power Supply Relay J757 OK e The Fuse SA5 OK e The fuel filter OK e The parking brake engaged e The battery voltage at least 12 5 V The selector lever of automatic transmission in position P or N All electrical consumers switched off e A C switched off The fuel tank at least 1 4 filled e The ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Located on the high pressure pump right side of cylinder head Disconnect the Fuel Metering Valve N290 electrical harness connector 2 Checking internal resistance Using a multimeter check the Fuel Metering Valve N290 terminals 1 to 2 for resistance Specified value 450 to 1000 Q If the specified value was not obtained Replace the Fuel Metering Valve N290 Refer to the appro priate service manual If the specified value was obtained Checking voltage Crank the engine 3 Diagnosis and
120. Ped al Position Sensor Ac celerator Ped al Position Sensor 2 page 147 Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Ped al Position Sensor Ac celerator Ped al Position Sensor 2 page 147 Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Ped al Position Sensor Ac celerator Ped al Position Sensor 2 page 147 duty cycle gt 80 e Continu ECM power stage failure Signal voltage lt 0 63 V Signal voltage gt 4 8 V Signal voltage ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY 3 Diagnosis and Testing 87 OED TT RS 2012 gt Auol DTC Error Mes Diagnostic Pro sage cedure P2128 Accelerator Check the Ac Pedal Posi celerator Ped tion Sensor al Position E Circuit Sensor 1 High Input G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Ped al Position sensor Agr eeleratonPeds al Position Sensor 2 page 147 Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Ped al Position Sensor Ac celerator Ped al Position Sensor 2 page 147 Check the Fuel injectors N30 N31 N
121. Service Repair Manual TT RS 2012 gt Generic Scan Tool mmeo OEP de ei Edition 07 2011 Service Department Technical Information Service List of Workshop Manual Repair GroupsList of Workshop Manual Repair GroupsList of Workshop Manual Repair Groups Repair Group ST Generic Scanchool Technical information should always be available to the foremen and mechanics because their careful and constant adherence to the instructions is essential to ensure vehicle road worthiness and safety In addition the normal basic safety precautions for working on motor vehicles must as a matter of course be observed All rights reserved No reproduction without prior agreement from publisher Copyright 2011 Audi AG Ingolstadt D3E803D02EB TT RS 2012 gt NNN Generic Scan Tool Edition 07 2011 Auer Contents ST Generic Scan To l sie Go as ead eee ee Oe dice ae Bee SA Me ee AA 1 1 General Information 00 ee eee 1 1 1 Safety Precautions saeou soe nke eas asa tie cai oad de ae hae et whe 2 1 2 Clean Working Conditions 0 cette eee 3 1 3 On Board Diagnostic SystemS AN A 0 0 ee 3 1 4 Malfunction Indicator Lamp Illumination 00000020 4 1 5 Controller Area Network Data Link 0 0 00 4 1 6 Electronic Power Control Warning Lamp 0 00 c eee 4 2 Description and Operation 0 0 000 eee teens 5 2 1 FUSEStpply SYE ed ee eee eee bbb eee nba 5 2 2 Evaporative
122. TC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 Diagnosis and Testing 1 55 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 3 5 22 Oxygen Sensor after Catalytic Convert er Checking Note Use only gold plated terminals when servicing terminals in the electrical harness connectors of the Oxygen Sensor O2S Be hind Three Way Catalytic Converter TWC G130 Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e Fuse SB6 OK Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Perform the function test in Diagnostic Mode 06 If specified Mode 6 values are obtained Switch the ignition Off Generate
123. Testing 1 1 CAU TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 O Po O Componentor System Switch the ignition OFF 3 3 2 Diagnostic Mode 02 Read Operating Conditions When an emissions related fault pending DTC visible in mode 07 is first detected operating conditions are stored Mode 02 makes it possible to access this freeze frame data as soon as this fault is shown in mode 03 Each control module only shows freeze frame data for one fault via mode 02 Therefore there are two priority levels If there is a malfunction with higher priority the freeze frame data is overwritten Fault with higher priority Misfire malfunction or fuel trim mal function Fault with normal priority All other emissions related faults Note Depending on scan tool and protocol used the information in di agnostic mode 02 may be referred to by different names such as Test ID TID Hex ID Component ID CID or On Board Diag nostic Monitor Identifier OBDMID 1 2 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Procedure Connect the scan tool Start the engine and run at idle a Note If the engine does not start crank the engine using starter for at least 5 seconds do not switch the ignition off afterward Select Diagnostic Mode 2 Obtain operating conditions From the following table select the desired the PID e g
124. Threshold ters with Enable Con ing Time of checks Value ditions MIL Illum Edition 07 2011 P0172 System Too Rich Bank 1 multipli cative Check the fuel pressure Re Adaptive value lt 20 0 only fer to gt 3 5 2 Fuel Pump Pres sure Check Check the Fuel Pressure Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check Check the Fuel injectors N30 N31 N32 N33 N83 Refer to gt 39 27 Fuel Injectors page 167 Check the Heated Oxy gen Sensor HO2S G39 Refer to gt 3 5 20 Heat ed Oxygen Sensor page 152 Check the Oxygen Sen sor 02S Be hind Three Way Catalytic Converter TWC G130 Refer to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP eric Span ibtelr Purge Regu lator Valve 1 continu ous 2 DCY Engine speed e 1200 4000 RPM ae Engine load 20 95 mass air flow 6 25 kg h ECT gt 60 0 C lambda control closed loop evap purge valve closed delta fuel adapta tion lt 10 02 ee TT RS 2012 gt Hy Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value
125. Throttle Valve Control Module J338 electrical harness connector terminals 2 to 6 for volt age from the ECM Specified value 4 5 to 5 2 V Switch the ignition OFF If the specified value was Not obtained Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Throttle Valve Control Module J338 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector T60 terminals for an open circuit according to the wiring dia gram Refer to Wiring Diagrams for pin locations Throttle Valve Control Engine Control Module ECM Module J338 electrical J623 electrical connector T60 ter harness connector termi minals or test box socket Specified value 1 5 Q max If the specified value was Not obtained Check the wiring for an open high resistance or short to ground If necessary repair the faulty wiring connection Check the electrical harness connector for damage corrosion loose or broken terminals If no fault is detected in the wiring and the voltage supply was Not OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence TT RS 2012 gt CoP 3 Diagnosis and Testing 1 51 COLD TT RS 2012 gt Aue Generic Scan Tool Edition
126. Tool meee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer Using a multimeter check the Data Bus On Board Diagnostic Interface J533 electrical harness connector to the Engine Control Module ECM J623 electrical harness connector T94 for short to ground high resistance or an open circuit Refer to Wiring Diagrams for pin locations Data Bus On Board Diag Engine Control Module ECM nostic Interface J533 J623 electrical connector T94 ter electrical harness connec minals or test box sockets tor terminals 6 Can Bus Low 67 16 Can Bus High es Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring connection for short to ground high resist ance or an open circuit Check the wiring connection for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is found in the wiring and the Terminal Resist ance was Not OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual If no malfunction is found in the wiring and the Terminal Resist ance was OK Replace the Data Bus On Board Diagnostic Interface J533 Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DT
127. Tool Edition 07 2011 Select the desired Test ID The information requested will be displayed on the scan tool screen The following table is a numerical list of all Test IDs that may be selected Test ID Diagnostic text Vehicle identification number e g Adifferent 17 digit number will be displayed for each vehicle Calibration identification e g Engine Control Module ECM oa Transmission Control Module TCM Calibration verification number check sum e g EC5AE460 the check sum is different for every control module version In Use Performance Tracking CBUA SULEV only ECU moduleacronymeand text name Service SUPPORTED on CBUA SULEV California emis Mode sions only Not Supported on CBTA Bin 5 Federal 0A emissions Switch the ignition OFF 3 3 10 Diagnostic Mode 0A Check Permanent DTC Memory Mode 0A Check Permanent DTC Memory Request emissions related diagnostic trouble codes with permanent status after code clear Permanent Fault Codes From MY 2010 with Phase In conforming to CCR 1968 2 d 2 2 5 50 from MY 2010 75 from MY 2011 100 from MY 2012 The vehicle only participates in Phase tn if all of the OBD relevant control modules in the vehicle meet these requirements Mode 0A may only be supported exclusively by OBD control mod ules in US vehicles Mode 0A may not be supported in EOBD vehicles meaning the control module may not send a response he
128. WR starting in the 1997 MY Several states in the northeastern United States have chosen to adopt the California emission regulations starting in the 1998 MY and are known as Green States TT RS 2012 gt j Generic Scan Tool Edition 07 2011 Aue 1 General Information 3 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Green States receive California certified vehicles for passenger cars and light trucks up to 6 000 Ibs GVWR Starting in the 2004 MY Federal vehicle over 8 500 Ibs will start phasing in OBD II Starting in 2004 MY gasoline fueled medium duty passenger ve hicles are required to have OBD II Federal OBD II applies to all gasoline engine vehicles up to 8 500 Ibs GVWR starting in the 1996 MY and all diesel engine vehicles up to 8 500 lbs GVWR starting in the 1997 MY OBD II system implementation and operation is described in the remainder of this document 1 4 Malfunction Indicator Lamp Illumination If the engine control module ECM recognizes a malfunction that leads to increased emission values it indicates them by illumi nating the malfunction indicator lamp MIL which is located in the instrument cluster The ECM switches on the MIL after the ignition is switched on Shortly after the engine is started the MIL goes out if the ECM does not detect a malfunction that increases the emission values If the ECM recognizes a malfunction that leads to increased emis sions during the
129. Wiring Diagrams for pin locations Specified value 1 5 O max If the specified value was Not obtained Check the wiring for a short to voltage high resistance or an open circuit Check the electricalLharness connector for damage corrosion loose or broken terminals If necessary repair the wiring connection If the specified value was obtained Replace the Engine Control Module ECM J623 Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 9 Exhaust Flap Valve 1 Checking Special tools and workshop equipment required multimeter Wiring diagram Test requirements The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts e All electrical consumers such as lights and rear window de froster switched off e On vehicles with automatic transmission selector lever in po sition P or N e A C switched off e Ground GND connections between engine transmission chassis OK e Ignition switched off Test procedure Perf
130. ae Refer internal resist E en 9 ance gt 950 Fuel cut off not ac tive 3 5 20 Heat ed Oxygen Sensor page 152 O2 Sensor Check the Virtual mass lt 2 Sec e 2DCY Circuit Heated Oxy 2 0 V Bank 1 Sen gen Sensor sor 1 Low HO2S UN lt 1 75 V Voltage Refer IP lt 0 3V IA 0 3 V 3 5 20 Heat ed Oxygen Sensor page 152 38 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0132 02 Sensor Check the Virtual mass 2Sec 2DCY Circuit Heated Oxy 3 25 V ae Bosse un aov ag Refer adjustment 9 voltage IP gt xz 1 5V 3 5 20 Heat i ed Oxygen IA gt 1 5 V Sensor page 492 3 Diagnosis and Testing 39 CED TT RS 2012 gt Auol Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0133 O2 Circuit Check the Heated Oxy gen Sensor HO2S G39 Refer to 3 5 20 Heat ed Oxygen Sensor page 152 eric Scan Tool lower value of both area ratios R2L and L2L in case of sym metric fault lt 0 3 AND lower value of both counters
131. agram Test requirements The Heated Oxygen Sensor HO2S G39 fuse is OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to the Repair Manual Checking internal resistance Disconnect the Heated Oxygen Sensor HO2S G39 electri cal harness connector Using a multimeter check the Oxygen Sensor O2S Heater Z19 terminals 3 and 4 for correct resistance Specified value 2 5 to 16 0 Q at approx 20 C If the specified value was Not obtained Replace the Heated Oxygen Sensor HO2S G39 1 54 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer If the specified value was obtained Checking voltage supply Turn the ignition switch ON Using a multimeter check the Oxygen Sensor O2S Heater Z19 electrical harness connector terminal 4 to engine ground for voltage Specified value Battery voltage Switch the ignition OFF If the specified value w
132. al components of the engine transmission and selector lever mechanism Touch a grounded object e g a water pipe or a hoist before working on electrical components Do not make direct contact with electrical harness connector terminals Use only gold plated terminals when servicing any component with gold plated electrical harness connector terminals 1 2 Clean Working Conditions Even minor contaminations can lead to malfunctions in the fuel injection system When working on the fuel supply injection sys tem pay careful attention to the following rules of cleanliness Thoroughly clean all connections and the surrounding area before disconnecting Place removed parts on a clean surface and cover Use lint free cloths Carefully cover over opened components or seal if repairs are not performed immediately When the system is open do not work with compressed air Do not move vehicle unless absolutely necessary Install clean components Remove replacement parts imme diately prior to installation Do not use parts that have been stored unpacked e g in tool boxes etc Separated electricalaconnectors Protectfromsdirbandimois lt ture Make sure connections are dry when reconnecting 1 3 On Board Diagnostic Systems California OBD II applies to all gasoline engine vehicles up to 14 000 Ibs Gross Vehicle Weight Rating GVWR starting in the 1996 MY and all diesel engine vehicles up to 14 000 Ibs GV
133. al harness connector or the Knock Sensor KS 2 G66 electrical harness connector Checking internal resistance Using a multimeter check the Knock Sensor terminals 1 to 3 for an internal short Specified value Infinity or OL reading If the specified value was Not obtained _ Replace the shorted Knock Sensor KS 1 G61 Knock Sen sor KS 2 G66 If the specified value was obtained Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter Check the Knock Sensor electrical har ness connector to the Engine Control Module ECM J623 electrical harness connector T60 for an open circuit Refer to Wiring Diagrams for pin locations Knock Sensor KS 1 G61 Engine Control Module ECM elec electrical harness connec trical harness connector T60 termi tor terminals nals or test box sockets Knock Sensor KS 2 G66 Engine Control Module ECM elec electrical harness connec trical harness connector T60 termi tor terminals nals or test box sockets 22 a O C gt Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring connection for an open circuit short circuit to Battery or Ground Check the wiring connection for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection 3 Diagnosis and Testing 1 91 COLD TT RS 2012 gt Au Generic S
134. alibrated threshold mis Check the ifre rate MR gt fuel pres 1 4 sure Refer catalyst dam to isi 3 5 2Fuel MRS 447 Pump Pres sure Check Check Fuel Injectors N30 N31 N32 N33 N83 Refer to gt S3 5 27 Fuel Injec tors Check page 167 Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 lg nition Coil with Power Output Stage page 192 Check the Engine Speed RPM Sen sor G28 Comparison of counted teeth and number of teeth 1 tooth Loss of refer ence gap dur ing normal op eration No reference gap during en gine start 60 Rep Gr ST Generic Scan Tool gine start gt 200 RPM and 1 cam revolution Engine torque gt Nm Engine speed range idle 6000 RPM Fuel cutoff Not active ECT at start gt 20 C IAT gt 48 C if ECT start lt 20 C than wait until actual ECT gt 18 C Rev gt 2 5 Misfire Rate 200 Rev 2 5 to 24 Misfire Rate 1 5 Sec ous 2 DCY immedi ate e 2DCY Generic Scan Tool Edition 07 2011 memes TT RS 2012 gt Hy Auol DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P0322 P0324 P0327 P0328 P0332 P0333 Engine Knock Con
135. ar window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK Throttle valve must not be damaged or dirty 3 Diagnosis and Testing 1 49 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 e Coolant Temperature at least 80 C Function Throttle valve operation occurs by an electric motor Throttle Drive for Electronic Power Control EPC G186 in the Throttle Valve Control Module J338 It is operated by the Engine Control Module ECM J623 and the Accelerator Pedal Position Sensor 1 G79 Accelerator Pedal Position Sensor 2 G185 The Throttle Valve Control Module J338 is made up of the fol lowing components Throttle Drive for Electronic Power Control EPC G186 Throttle Drive Angle Sensor 1 for Electronic Power Control EPC G187 Throttle Drive Angle Sensor 2 for Electronic Power Control EPC G188 The Throttle Valve Control Module J338 cannot be serviced separately and must be serviced as a unit Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Connect the scan tool Switch ignition ON Using the scan tool check the throttle valve position absolute at idle stop Diagnostic text Specified value Thro
136. ary Check page 8 Start diagnosis Remove the right rear wheel housing liner Refer to the Repair Manual Disconnect the Leak Detection Pump LDP V144 electrical harness connector Checking internal resistance Using a multimeter check the Leak Detection Pump LDP V144 for resistance as follows Leak Detection Pump LDP V144 Specified values electrical connector terminals 134 to 153 Q 134 to 153 0 If any of the specified values were Not obtained Replace the Leak Detection Pump LDP V144 Refer to the Repair Manual If the specified values were obtained Checking voltage supply Note The voltage for the Leak Detection Pump LDP V144 is sup plied via the Fuse SB7 1 36 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 Auer Using a multimeter check the Leak Detection Pump LDP V144 electrical harness connector terminal 3 for voltage Connect the negative lead to engine ground Start the engine Specified value Battery voltage Switch the ignition Off If the specified value was Not obtained Using a multimeter checkithe dceak DetectioncRumpi kDP V144 wiring from terminal 3 to Fise SBT Refer to Wiring Diagrams for pin locations Specified value 1 0 Q max If the specified value was Not obtained Check the wiring for high resistance short to ground or an open circuit Check the electrical harness
137. as Not obtained Check the wiring for an openhigh resistancenorishortto Ground and repla e any per fuse Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If the specified value was obtained Checking Ground activation Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Oxygen Sensor O2S Heater Z19 electrical harness connector terminal 3 to the Engine Control Module ECM J623 electrical harness connector T94 terminal 51 for an open circuit Refer to Wiring Diagrams for pin locations Heated Oxygen Sensor Engine Control Module ECM HO2S G39 electrical har J623 electrical connector T94 ness connector terminal terminal or test box socket Specified value 1 5 Q max If the specified value was Not obtained Check the wiring for an open high resistance short circuit to each other Battery or Ground Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the wiring and if the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the D
138. can Tool Edition 07 2011 If no malfunction is found in the wiring and the resistance was OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Install the engine cover with air filter Refer to the Repair Man ual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 41 Ignition Coil with Power Output Stage Checking The following procedure is used to diagnose allilgnitionCoils with Power Output Stage Special tools and workshop equipment required Multimeter Diode test lamp Wiring diagram Test requirements e The Ignition Coils with Power Output Stage N70 N127 N291 N292 N323 fuses OK e The Engine Control Module ECM Power Supply Relay J271 OK e The Engine Speed RPM Sensor G28 OK e The Camshaft Position CMP Sensor G40 OK e Battery voltage at least 12 5 volts e All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off
139. cant reduction in emissions and fuel consumption under certain load conditions It would be incorrect to think that EPC consists of only one or two components EPC is much more of a system containing all com ponents that contribute to recognizing controlling and monitoring the position of the throttle valve 2 4 Fuel Injection System For all fuel injection system component locations removal instal lation procedures and torque specifications refer to the service manual 2 5 Engine Control Module The ECM regulates fuel injection throttle valve control module oxygen sensor regulation ignition knock control evaporative emission purge valve engine speed limitation through the fuel injectors or the power supply relay as well as OBD functions 6 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer 2 6 Exhaust System Components For all exhaust system emission control component locations removal installation procedures and torque specifications refer to the service manual 2 7 Secondary Air Injection System The secondary air injection system improves the secondary oxi dation within the catalytic converter which are due to the rich mixture during the cold start phase where the exhaust emissions contain an increased level of unburned hydrocarbons thereby reducing harmful emissions The heat released by secondary ox idation shortens the startup time of the catalytic converter
140. ceramic temper 720 C 1200 C Refer to DTC P0135 in ature Bank 1 Sensor 1 monitor the DTC mney table ing gt page 41 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic 3 Diagnosis and Testing 2 1 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID 42 46 Oxygen Sensor Heater Monitor Bank 1 Sensor 2 Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 42 46 Select the desired Test ID or Hex ID Check specified values at idle TestID Component or System al aa _ Additional Information P0141 Oxygen sensor heating internal 1904K Refer to DT GP01414 in resistance test Bank 1 Sensor 2 the DTC summary table gt page 42 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID A2 162 Mis Fire Cylinder 1
141. cessary repair the faulty wiring connection If no malfunction is detected in the wiring and if the voltage supply was OK Replace the Manifold Absolute Pressure MAP Sensor G71 Intake Air Temperature IAT Sensor G42 Erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 Perform a road test to verify repair If the DTC does not return Repair complete Generate readiness code Refer to gt 3 2 Readiness Code page 8 End diagnosis If the DTC returns and no malfunction is found in the wiring and voltage supply was OK Replace the Engine Control Module J623 Refer to the serv ice manual for removal and installation procedures Assembly is performed in the reverse order of the removal note the following Final procedures After repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 Diagnosis and Testing 1 33 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 3 5 12 Intake Manifold Runner Position Sen sor Checking Observe all safety precautions gt
142. cessary repair the faulty wiring connection If no malfunction is found in the wiring and voltage supply was OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Install the engine cover with air filter Refer to the Repair Man ual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 39 Camshaft Adjustment Valve 1 Exhaust The following procedure is used to diagnose Camshaft Adjust ment Valve 1 exhaust N318 which is controlled by Engine Control Module ECM J623 Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e Fuse SC7 OK 7 Control Module ECM Power Supply Relay J271 e Battery voltage at least 12 5 Volts e All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground GND connections between engine transmission chassis OK e Ignition switched off 1 88 Rep Gr ST
143. check the Intake Manifold Runner Position Sensor G336 electrical harness connector terminals 1 to 3 for voltage Specified value about 5 V Switch ignition off If the specified value was not obtained Check and or repair wiring as required If the specified value was obtained Checking internal resistance Using a multimeter check the Intake Manifold Runner Position Sensor G336 electrical terminals 2 to 3 for resistance Specified value 7 25 Q at approx 20 C Using a multimeter check the Intake Manifold Runner Position Sensor G336 electrical terminals 1 to 3 for resistance Specified value 244 40 O at approx 20 C If the specified values were not obtained Replace the Intake Manifold Runner Position Sensor G336 Refer to appropriate service manual If the specified value was obtained Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to appropriate service manual Using a multimeter check the Intake Manifold Runner Position Sensor G336 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness con nector T60 terminals for an open circuit Intake Manifold Runner Posi Engine Control Module ECM tion Sensor G336 electrical
144. connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If the specified voltage was obtained Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Leak Detection Pump LDP V144 electrical connector terminals to Engine Control Mod ule ECM J623 electrical connector terminals for an open circuit or high resistance Refer to Wiring Diagrams for pin lo cations Leak Detection Pump LDP Engine Control Module ECM V144 electrical harness J623 electrical connector T94 connector terminal terminal or test box socket Specified value 1 0 Q max If the specified value was Not obtained Check the wiring for high resistance or an open circuit Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is found in wiring and the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Assembly is performed in the reverse order of the removal note the following Install the right rear wheel housing liner Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence TT RS 2012 gt COP 3 Diagnosis and Testing 1 37 COLD TT RS
145. ctions between engine transmission chassis OK e Ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Remove the engine cover with air filter Refer to appropriate service manual 1 84 Rep Gr ST Generic Scan Tool TT RS 2012 gt CGD Generic Scan Tool Edition 07 2011 Auer Remove the sensor connector 1 Checking activation Connect diode test lamp between terminal 2 and terminal 1 Turn key on Operate starter for a few Sec LED in test lamp must blink Turn key off Checking voltage Disconnect the Camshaft Position CMP S nsor 3 G300 electrical harness connector Switch the ignition on Using a multimeter Check the Camshaft Position CMP Sen sor 3 G300 electrical harness connector terminals 1 to 3 for voltage Specified value about 5 0 V Switch the ignition off If the specification was not obtained Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module J623 Refer to appro priate service manual 3 Diagnosis and Testing 1 85 CAU TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Using a multimeter check the Camshaft Position
146. ctor T94 terminals or alytic Converter TWC test box sockets G130 electrical har ness connector termi nals Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open high resistance short circuit to each other Battery or Ground Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the wiring and the voltage supply was Not OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Assembly is performed in the reverse of the removal Final procedures After repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Ref rto ss 3 2y ReadinesS Code page s TT RS 2012 gt GOD 3 Diagnosis and Testing 1 57 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 3 5 23 Oxygen Sensor 1 after Catalytic Con verter Heater Checking Note Vehicle must be raised before electrical harness connector for the Oxygen Sensor 02S Behind Three Way Catalytic Con verter TWC G130 is acces
147. d els or Fuel Pump Relay J17 later models for a short circuit to Ground or an open circuit Refer to Wiring Diagrams for circuit pin locations Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the wiring connection If no malfunctions are found in the wiring Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimet r check the Secondary Air Injection SAD Solenoid Valve N112 electrical harness connector terminal 2 to the Engine Control Module ECM J623 electrical har ness connector T60 for an open circuit Secondary Air Injection SAI Engine Control Module ECM Solenoid Valve N112 elec J623 electrical connector T60 trical harness connector ter terminal or test box socket minal Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open high resistance or short to ground Check the electrical harness connector for damage corrosion loose or broken terminals f necessary repair the faulty wiring connection If no malfunction is detected in the wiring Replace the Engine Control Module ECM J623 Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode
148. d perform the following step Install the test box Refer to Repair Manual If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to Repair Manual TT RS 2012 gt CGD 3 Diagnosis and Testing 1 89 CAU TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Using a Multimeter check the Camshaft Adjustment Valve 1 exhaust N318 electrical harness connector terminal 1 to the Engine Control Module ECM J623 electrical harness con nector T60 for an open circuit Camshaft Adjustment Valve Engine Control Module ECM 1 exhaust N318 electrical J623 electrical harness connector harness connector terminal T60 terminal or test box socket 1 5 Specified value 1 5 Q Max If the specified value was not obtained Check the wiring connection for an open circuit short circuit to Battery or Ground GND Check the wiring connection for damage corrosion lose or broken terminals f necessary repair the faulty wiring connection If no malfunction is found in the wiring and voltage supply was not Replace the Engine Control Module ECM J623 Refer to Repair Manual Assembly is performed in the reverse order of removal Final procedures After repair work the following work steps must be performed in the following sequence 1 Checkithe Di amp CamemoryRefer to gt 3 313
149. d in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of America Inc its affiliated companies and its licensors All rights are reserved to make changes at any time without notice No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise nor may these materials be modified or reposted to other sites without the prior expressed written permission of the publisher Version 1 0 Cautions amp Warnings e Do not re use any fasteners that are worn or deformed in normal use Some fasteners are designed to be used only once and are unreliable and may fail if used a second time This includes but is not limited to nuts bolts washers circlips and cotter pins Always follow the recommendations in this manual replace these fasteners with new parts where indicated and any other time it is deemed necessary by inspection e Illuminate the work area adequately but safely Use a portable safety light for working inside or under the vehicle Make sure the bulb is enclosed by a wire cage The hot filament of an accidentally broken bulb can ignite spilled fuel or oil e Friction materials such as brake pads and clutch discs may contain asbestos fibers Do not create dust by grinding sanding or by cleaning with compressed air
150. d or reposted to other sites without the prior expressed written permission of the publisher Version 1 0 Cautions amp Warnings e When boost charging the battery first remove the fuses for the Engine Control Module ECM the Transmission Control Module TCM the ABS control module and the trip computer In cases where one or more of these components is not separately fused disconnect the control module connector s e Some of the vehicles covered by this manual are equipped with a supplemental restraint system SRS that automatically deploys an airbag in the event of a frontal impact The airbag is operated by an explosive device Handled improperly or without adequate safeguards it can be accidentally activated and cause serious personal injury To guard against personal injury or airbag system failure only trained Audi Service technicians should test disassemble or service the airbag system e Do not quick charge the battery for boost starting for longer than one minute and do not exceed 16 5 volts at the battery with the boosting cables attached Wait at least one minute before boosting the battery a second time e Never use a test light to conduct electrical tests of the airbag system The system must only be tested by trained Audi Service technicians using the VAG 1551 Scan Tool ST or an approved equivalent The airbag unit must never be electrically tested while it is not installed in the vehicle e Some aerosol tire
151. da control closed loop fuel cut off not ac tive Key ON during ECM after run timer active CAN active Error Mes sage Intake Manifold Runner Po sition Sen sor Switch Circuit Bank 1 Intake Manifold Runner Po sition Sen sor Switch Circuit Range Per Diagnostic Pro cedure Malfunction Crite ria Val and Threshold ue Check the In signal range check upper mechani take Flap Mo tor V157 In take Manifold Runner Posi tion Sensor G336 Refer to gt 3 5 12 In take Manifold Runner Posi tion Sensor page 134 Check the In take Flap Mo tor V157 In take Manifold Runner Posi tion Sensor G336 Refer to gt 3 5 12 In take Manifold Runner Posi tion Sensor page 134 Check the In tor V157 In take Manifold Runner Posi tion Sensor G336 Refer to gt 3 5 12 In take Manifold Runner Posi tion Sensor page 134 Check the In take Flap Mo tor V157 In take Manifold Runner Posi tion Sensor G336 Refer to gt 3 5 12 In take Manifold Runner Posi tion Sensor page 134 cal stop normal closed position unable to reach signal voltage lt 2 62 or gt 4 65 V signal range check lower mechani cal e stop normal closed position unable to reach signal voltage lt 0 35 or gt 2 38 V signal duty cy cle gt 80 ECM power stage failure signal voltage lt take Flap Mo 0 2 V
152. e service manual If no malfunction is detected in the wiring and if the voltage supply was not OK Replace the Engine Control Module ECM J623 Refer to appropriate service manual Install the engine cover with air filter Refer to appropriate service manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 17 Wastegate Bypass Regulator Valve Checking Special tools and workshop equipment required multimeter Wiring diagram 1 44 Rep Gr ST Generic Scan Tool TT RS 2012 gt CGD Generic Scan Tool Edition 07 2011 Auer Test requirements The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts e All electrical consumers such as lights and rear window de froster switched off e On vehicles with automatic transmission selector lever in po sition P or N e A C switched off e Ground GND connections between engine transmission chassis OK e Ignition switched off Test procedure Performa preliminary check to verify the customers complain
153. e BARO read range 45 to 845 Start lt 25 Sec ing is off by more hPa e 2DCY than 10 re place the ECM Refer to the Re pair Manual Check the gt 3 5 11 In take Air Tem perature Sen sor and Mani fold Absolute Pressure Sen sor Check Engine speed lt Difference 330 RPM manifold pres sure upper threshold mod el gt 0 Model range 640 1055 Difference alti tude sensor signal vs mani fold pressure signal at en gine start gt 60 hPa boost pressure sensor signal vs altitude sensor signal gt 22 kRa n822 kPa page 130 P0107 Manifold Check the Signal voltage Manifold Ab lt 0 2V solute Pres sure MAP Sensor G71 Refer Range check e manifold pres sure signal lt 100 00 hPa to gt 3 5 11 In Cross check take Air Tem diff manifold P0108 Manifold perature Sen sor and Mani fold Absolute Pressure Sen sor Check in O page 130 Check the Manifold Ab solute Pres sure MAP Sensor G71 Refer to gt 3 5 11 In take Air Tem perature Sen sor and Mani fold Absolute Pressure Sen sor Check Ing page 130 34 Rep Gr ST Generic Scan Tool pressure to average value of all pressure sensors start lt 60 00 hPa Signal voltage gt 4 86 V Range check manifold pres sure signal gt 2950 hPa Cross check diff manifold pressure to average value of all pressure sensors
154. e CAN bus allows the exchange of information messages between the connected modules Messages that are missing data on the CAN bus are recognized as a malfunction by the control module connected to the CAN bus that received the invalid data Trouble free operation of the CAN Bus requires that it have a Terminal Resistance This central Terminal Resistance is located in the Engine Control Module ECM J623 Test Procedure Perform apreliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Disconnect the Data Bus On Board Diagnostic Interface J533 electrical harness connector Note The Engine Control Module ECM J623 must remain connected for the following step Disconnect the Data Bus On Board Diagnostic Interface J533 electrical harness connector Using a multimeter check the Data Bus On Board Diagnostic Interface J533 electrical harness connector terminals 6 to 16 for the correct Terminal Resistance Refer to Wiring Diagrams for pin locations Specified value 60 to 72 Q at approx 20 C If the specified value was Not obtained Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the Repair Manual 1 96 Rep Gr ST Generic Scan
155. ecified value approx 5 V Switch the ignition off If specified value was not obtained Check the electrical harness connector for damage corrosion loose or broken terminals If no malfunction is detected in the wirihg and the Voltage Supply was OK Checking electrical circuit If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module J623 Refer to appro priate service manual 1 32 Rep Gr ST Generic Scan Tool memes TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer Using a multimeter check the Manifold Absolute Pressure MAP Sensor G71 Intake Air Temperature IAT Sensor G42 electrical harness connector terminals to the Engine Control Module J623 electrical harness connector T60 ter minals for resistance Manifold Absolute Pressure Engine Control Module J623 MAP Sensor G71 Intake Air electrical connector T60 termi Temperature IAT Sensor nals or test box socket G42 electrical harness con nector terminals Specified value 1 5 Q max If any of the specified values were not obtained Check the wiring for an open circuit a short circuit to each other Battery or Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals If ne
156. ection and Ig nition 21 Charge Air System Check the Charge Air Pressure Sen sor G31 Refer to 3 5 16 Charg e Air Pressure Sensor In take Air Tem perature Sen sor 2 Check ing page 142 Check the charge air system for proper seal Refer to En gine Mechani cal Fuel In jection and lg nition 21 Charge Air System difference ac tual pressure set point pres sure gt 30 kPa signal voltage lt 0 2V Cross check diff pressure in front of throttle to average val ue of all pres sure sensors start lt 30 00 hPa 3 Sec 125 Continu ous 2 DCY Continu ous 2 DCY engine Spee gt 80 2 Sec e engine shut off time gt 5 0 Sec engine speed lt 350 rpm 3 Diagnosis and Testing 5 1 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum Edition 07 2011 P0238 Turbo charger Su percharger Boost Sen sor A Circuit High percharger Wastegate Solenoid A P0245 Turbo charger Su percharger Wastegate Solenoid A Low P0246 percharger Wastegate Solenoid A High Check the Charge Air Pressure Sen sor G31 Refer to gt 3 5 16 Charg e Air Pressure Sensor In take Air Tem perature Sen sor 2 Check
157. ection valve 0 5 Sec commanded OFF high pressure sys tem current lt 2 6 A Engine speed gt 80 RPM Injection valve 0 5 Sec commanded OFF high pressure sys tem current lt 2 6 A Engine speed gt 80 RPM Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY 3 Diagnosis and Testing 49 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0205 Injector Cir Check the oa current lt Injection valve Edition 07 2011 cuit Open Cylinder 5 Accelerator Accelerator Pedal Posi tion Sensor Accelerator Fuel Injector N83 Refer to 3 5 27 Fuel Injectors page 167 Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Ped al Position Sensor Ac celerator Ped al Position Sensor 2 page 147 Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Ped al Position Sensor Ac celerator Ped al Position Sensor 2 page 147 Check the Ac celerator Ped
158. ed Checking voltage supply Turn the ignition switch ON Using a multimeter check the Oxygen Sensor 02S 1 behind Three Way Catalytic Converter TWC Heater Z29 electrical harness connector terminal 1 to engine ground 1 58 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer Specified value Battery voltage Switch the ignition OFF If the specified value was Not obtained Check the wiring for an open high resistance short circuit to each other or Ground Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If the specified value was obtained Checking Ground activation If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimetercheck the OxygencSensor 025 4 behind Three Way Catalytic Converter TWC Heater Z29 electrical harness connector terminal 2 to the Engine Control Module ECM J623 electrical harness connector T94 terminal for an open circuit Refer to Wiring Diagrams for pin locations Oxygen Sensor 02S 1 be Engine Control Module ECM hind Three Way Catalytic J623 electrical connector T94 Converter TWC Heater
159. eneric Scan Tool meee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 3 Fuel Pump Delivery Rate Checking Special tools and workshop equipment required Hand held remote control jumper Multimeter Electrical connector test lead set Fuel pressure test set gt gt o Measuring container fuel resistant Test conditions e Battery voltage 12 5 V e Fuel filter OK Fuel tank at least 1 4 filled e Fuel pressure regulator OK e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the fuel filler cap from fuel filler tube Remove rear seat bench Refer to the Repair Manual pRemove the floor sealing cover Disconnect the electrical harness connector from the fuel de livery unit Connect a hand held remote control jumper to terminal 1 of the fuel delivery unit and to vehicle battery Connect a jumper wire from terminal 5 of the fuel delivery unit to vehicle Ground AN WARNING Fuel system is under pressure Before opening the system place rags around the connection area Then release the pres sure by carefully loosening the connection Disconnect the fuel return line by pressing release buttons
160. epair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 27 Fuel Injectors Checking The following test procedure is used to diagnose all fuel injectors 3 Diagnosis and Testing 1 67 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Special tools and workshop equipment required Multimeter Diode test lamp 12 V Wiring diagram Test requirements e The Fuel Pump relay is operational e The Engine Speed RPM Sensor G28 OK e Battery voltage at least 12 5 volts e All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched Off Observe safety precautions Observe rules for cleanliness Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to the Repair Manual
161. fer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 31 Secondary Air Injection Combination Valve Checking The following procedure is used to test all combination valves Special tools and workshop equipment required Hand vacuum pump Test conditions e Vacuum lines and hose connections free of leaks e Vacuum lines not plugged Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start procedure Remove the vacuum hose from the Secondary Air Injection Combination Valve Connect hand vacuum pump to combination valve vacuum connection Remove the air duct hose from the Throttle Valve Control Module J338 and position aside 1 74 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt 44 Generic Scan Tool Edition 07 2011 Auer Disconnect the Secondary Air Injection hose Inject a light air pressure into the in Secondary Air Injection hose to close the combination valve do not use compressed
162. following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generatereadiness code Refer to gt 3 2 Readiness Code page amp 3 5 10 Exhaust Gas Temperature Sensor 1 Checking Note Use only gold plated terminals when servicing terminals in the electrical harness connector of Exhaust Gas Temperature EGT Sensor 1 G235 Special tools and workshop equipment required Multimeter Wiring diagram Test requirements The Engine Control Module ECM J623 fuses OK The Fuel Pump FP Relay J17 must be OK e Battery voltage at least 12 5 volts 1 28 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt y Generic Scan Tool Edition 07 2011 Auer All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground GND connections between engine transmission chassis OK Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Checking internal resistance Disconnect the Exhaust Gas Te
163. for 10 7 Oxygen Sen 2 15 3 25 V 10 s since 02S Sec i sor O2S rear dewpoint ex i Heater ceeded G130 Refer i to Time after engine gt 3 5 23 Oxy start gt 5 Sec gen Sensor 1 heater comman after Catalytic ded off Converter Heater Engine speed gt 40 Checking RPM page 158 30 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL llum Illum P0038 Hos Check the the Heater current gt 3 Oxygen Sen A i sor O2S it Hi Heater G130 Refer to gt 3 5 23 Oxy gen Sensor 1 after Catalytic Converter Heater Checking page 158 P0042 O02 Sensor Check the Heater voltage Oxygen Sen 2 34 to 3 59 V i sor O2S i Heater G130 Refer to gt 3 5 23 Oxy gen Sensor 1 after Catalytic Converter Heater Checking page 158 P0043 02 Sensor Check the Heater voltage lt Oxygen Sen 2 34 V i sor O2S i Heater G130 Refer to ONLY gt 3 5 23 Oxy gen Sensor 1 after Catalytic Converter Heater Checking page 158 P0044 02 Sensor Check the Heater voltage gt Heater Oxygen Sen 3 59 V i sor O2S i Heater G130 Refer ig to gt 3 5 23 Oxy LY gen Sensor 1 after Cataly
164. ge check Signal circuit gt 1000 RPM Signal range check gt 2000 RPM ECT gt 41 C Engine load 30 to 37 50 2 DCY 0 5 to 2 e 2DCY Sec 0 5 to 2 e 2DCY Sec 0 5 to 2 Sec 0 5 to 2 Sec 3 Diagnosis and Testing 6 1 Multiple 2 DCY COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P0341 Camshaft Check the e Pignal voltage 0 3 Sec 2 DCY Camshaft low 4 Position ircui CMP Sen sor G40 Refer to gt 3 5 36 Cam shaft Posi tion Sensor page 182 Camshaft Check the Signal voltage 0 3 Sec 2DCY Camshaft permanently Position low 4 Revs Circuit Low CMP Sen Input sor G40 Refer to gt 3 5 36 Cam shaft Posi tion Sensor page 182 Camshaft Check the Signal voltage Camshaft permanently Position high CMP Sen sor G40 Refer to gt 3 5 36 Cam shaft Posi tion Sensor page 182 Ignition Coil Check the lg signal current lt Engine speed gt continu nition Coils 4 95 8 82 mA 1500 RPM ous with Power Output Stage 2 DCY N70 N127 N291 N292 N323 Refer to gt 3 5 41 lg nition Coil with Power Output Stage page 192 62 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 0
165. gnostics are performed at regular intervals during normal ve hicle operation After repairing an emissions related system a readiness code is generated by road testing the vehicle 8 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer If a malfunction is recognized during the drive cycle it will be stored in the DTC memory The OBD drive cycle operation will be monitored with a hand held diagnostic tool Consult the manufacturer s instruction manual for correct tool operation The readiness code is erased every time the DTC memory is erased or any time the battery is disconnected If the DTC mem ory has been erased or the battery is disconnected a new read iness code must be generated Only erase the DEC memory ifta DJ Chas been stored General recommendations Most monitors will complete easier and quicker using a steady foot and smooth acceleration during the drive cycle operation cruise and acceleration modes Operating conditions For the EVAP monitor test the coolant temperature and the am bient air temperature must be between 10 C and 35 C witha difference between them no greater than 4 C The ambient air temperature must not change more than 4 C during the drive cycle procedure e g when driving out of a heated workshop in the winter Test requirements Erase the DTC memory Coolant temperature must be between 80 C and 110 C The intake
166. he Leak Detec i tion Pump i LDP it Hi V144 Refer 3 5 13 Leak Detection Pump Checking page 136 Signal voltage lt 2 74 to 3 26 V Signal current gt 2 2to4A Signal voltage gt 4 40 to 5 60 V Signal voltage lt 2 74 to 3 26 V Ti current gt f 3A EVAP pump elec 0 5 Sec 2DCY tric drive comman ded off EVAP pump elec 0 5 Sec tric drive comman ded on LDP commanded OFF engine speed gt 40 RPM LDP commanded 0 5 Sec OFF engine speed gt 40 RPM LDP commanded 0 5 Sec ON enn speed gt 40 RP 3 Diagnosis and Testing 8 ees 01 Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P2403 Evaporative Check the Low signal volt LDP commanded issi Leak Detec age gt 1 Sec OFF tion P LDP evap purge valve V144 Refer closed to ECT at start gt o 3 5 13 Leak a ie Detection LDP activated Se Pump lected gear any Checking drive page 136 ambient pressure gt 743 5 hPa number of diagno sis attempts lt 15 IAT gt 4 C delta ambient pressure lt 300 Pa IAT drop after en gine start lt 7 K Time after engine
167. he intake mani fold Checksthe Fu lPressur tween MPa actual tive ous Sensor pressure target G247 Refer pressure gt 1 3 2 DCY to lt 3 MPa gt 3 5 5 Fuel Pressure Sen sor Check difference be fuel cut off not ac Continu Ing page 119 2294 Fuel Rail Check the signal voltage valve comman 1 Sec Continu Fuel Pressure 2 3 2 7 V ded off ous D Refer engine relay 2 DCY to commanded gt 3 5 5 Fuel on Pressure Sen sor Check in page 119 P2295 Fuel Rail Check the signal voltage valve comman 1 Sec Continu Fuel Pressure 1 8 2 2 V ded off ous aa Refer engine relay 2 DCY to commanded gt 3 5 5 Fuel on Pressure Sen sor Check in E page 119 3 Diagnosis and Testing 97 2293 Fuel Rail PR P COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Pa Monitoring Frequency of sage cedure ria and Threshold rameters with En Time checks MIL Value able Conditions Length Illum Check the signal voltage gt valve comman 1 Sec e Continu Fuel Pressure 3 9 V ded on ous e Refer engine relay 2DCY to commanded gt 3 5 5 Fuel on Pressure Sen sor Check in 8 page 119 P2300 Ignition Coil Check the lg short to ground aome yia gt e Continu A Primary nition Coils signal voltage lt ous Control Cir with Power 0 5 1 0 V cuit Low Output 2 DCY
168. he ECM to prevent fuel vapor from escaping and route it to the intake manifold to be burned during normal combustion The leak detection system checks the integrity of the evaporative emission system by pressurizing system When leak detection is activated a pump pressurizes the evaporative system During the leak diagnosis the system is monitored for a spe cific time period If the pressure does not drop a specific amount during the time period the system is considered to be sealed Ifthe pressure drops greater than a specified amount during a specific time period the system is pressurized once more The engine control module measures the time until the pres 2 Description and Operation 5 CAY TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 sure drops again The control module uses the measured value to determine the size of the leak Leak diagnosis is activated automatically shortly following every engine start If a malfunction is determined an entry is made to the DTC memory The Malfunction Indicator Lamp in the instru ment cluster is illuminated if the malfunction is recognized for two subsequent starts For all evaporative system component locations hose routing removal installation procedures and torque specifications refer to the service manual 2 3 Electronic Engine Power Control For EPC the throttle valve is not operated by a cable from the accelerator pedal There is no mechanical con
169. he Repair Manual Replace the Engine Con trol Module ECM J623 Refer to the appro priate service manual Replace the Engine Con trol Module ECM J623 Refer to the appro priate service manual If any sensor specific codes are present perform the diagnostic for those codes first If no sen sor codes are set replace the Engine Control Mod ule ECM J623 Refer to the Repair Manual Data Rep Gr ST Generic Scan Tool time to open over reference point 12 gt 0 14 Sec time to close below refer ence point 3 gt 0 56 Sec TPS 1 signal voltage not 0 42 0 77 V or TPS 2 signal voltage not 4 26 4 58 V internal com munication fail ure signal voltage lt 4 6 5V cone voltage gt o4V internal com munication fail ure engine speed lt 300 rpm IAT gt 5 3 C ECT gt 5 3 C Vehicle speed 0 km h continu ous e 2DCY continu ous 2 DCY continu ous 2 DCY continu ous 2 DCY TT RS 2012 gt GD Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum __ Illum P0652 Sensor Ref Ref Replace the the A aa 0 5 Sec e Continu erence Volt Engine Con ous trol Module j ECM 2 DCY J623
170. heck the Throttle Valve Con trol Module J338 Refer to gt 3 5 19 Throt tle Valve Control Mod ule Check page 149 Check the Throttle Valve Con trol Module J338 of Refer to 3 5 19 Throt tle Valve Control Mod ule Check ing page 149 Engine speed deviation gt 100 RPM RPM controller torque value gt calculated max value engine speed deviation gt 80 200 rpm idle controller at min value 7 Engine speed deviation lt 150 RPM RPM controller value 0 8 OR Engine speed deviation gt 150 RPM RPM controller min value 7 Engine speed at idle Vehicle speed 0 MPH external torque request not de manded Altitude lt 2700 m IAT gt 9 8 C Engine load lt 34 50 ECT gt 40 5 C Engine speed at idle Vehicle speed 0 MPH external torque request not de manded Altitude lt 2700 m IAT gt 9 8 C Engine load lt 34 50 external torque request not de manded Engine speed idle Vehicle speed 0 km h Altitude lt 2700 m ECT at start lt 4 to 40 C IAT gt 9 8 C engine load lt 66 78 Catalyst heat ing active e 2DCY e Continuous e 2DCY 30 Sec Once e 2DCY 3 Diagnosis and Testing 15 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Pa Monitor Frequency of sage cedure ria and Threshold rameters
171. hecking Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e The Camshaft Adjustment Valve 1 N205 fuse OK e Engine Control Module ECM Power Supply Relay J271 OK checking e Battery voltage at least 12 5 volts e All electrical consumers such as lights and rear window de froster switched off 1 86 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to the Repair Manual Disconnect Camshaft Adjustment Valve 1 N205 electrical harness connector Using a multimeter check the Camshaft Adjustment Valve 1 N205 for resistance Specified value 5 0 to 9 0 Q at approx 20 C If the specified value was Not obtained Replace the Camshaft Adjustment Valve 1 N205 Refer to the Repair Manual If the specified value was obtained Checking voltage Start the engine Using a multimeter Check the Camshaft Adjustment Valve 1 N205 electrical harness connector terminal 2 for voltage
172. hecks Value ditions Length MIL Illum oa Intake Check the e adjustment an e Engine speed Continu Camshaft Ad gle difference lt gt 550 RPM ous Vane oe ECT gt 7 5 C 2 DCY pee Refer Time after engine 0 start gt 3 5 Sec gt 3 5 38 Cam number of shaft Adjust checks normal ment Valve operation 3 age 186 time length for samme more than 1 5 Sec camshaft position change gt 4 CA Check the e adjustment an engine speed gt Continu Camshaft Ad gle difference lt 550 rpm ous just t T CAS Vave 1 ee j ECT gt 7 5 C 2 DCY haust oe Refer start gt 3 5 Sec time after engine i number of 3 5 39 Cam checks normal shaft Adjust operation 3 ment Valve 1 i Exhaust time length for page 188 more than 1 5 Sec camshaft position change gt 4 CA 3 Diagnosis and Testing 27 COD TT RS 2012 gt Auol DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum Generic Scan Tool Edition 07 2011 Check the P008 Fuel pres A sure out of range P008 B P0010 P0011 P0013 Fuel Pressure Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check ng page 119 Check the Fuel Pressure Sensor G247 Refer to gt 2 9 9 Fuel Pressure Denz sorpe amp heck in page 119
173. hop equipment required Multimeter 1 42 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer Wiring diagram Test requirements The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e On vehicles with automatic transmission selector lever in po sition P or N e A C switched off an 38 ry e Ground GND connections between engine transmission 39 Rt e 23 chassis OK co wee e Ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to appropriate service manual Test sequence Disconnect the Charge Air Pressure Sensor G31 Intake Air Temperature IAT Sensor 2 G299 electrical harness con nector arrow Start engine and let it run at idle M24 0547 Using a multimeter check the Charge Air Pressure Sensor G31 Intake Air Temperature IAT Sensor 2 G299 electrical harness connector terminals 1 to 3 for voltage Specified value min 4 5 V Switch the ignition off If the specification was obtained Replace the Charge Air Pressure Sensor G31 Intake Air Temperature IAT Sensor 2
174. if the temperature does not climb uniformly or the temperature signal is intermittent Switch the ignition OFF Replace the the Engine Coolant Temperature ECT Sensor G62 or G83 Checking internal resistance Disconnect the Engine Coolant Temperature ECT Sensor G62 or G83 electrical harness connector Using a multimeter check the Engine Coolant Temperature ECT Sensor G62 or G83 terminals 1 to 2 for resistance Use the chart below for the specified values ECT Temperature vs Resistance Temp C min value ohms 40 35 28 25 5 5 5 5 2 135d 78 If the specified value was Not obtained N N N ow BK k O Replace the Engine Coolant Temperature ECT Sensor G62 or G83 3 Diagnosis and Testing 1 61 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Testing if display is approx 40 0 C Disconnect the Engine Coolant Temperature ECT Sensor G62 or G83 electrical harness connector Using ajumper wire connect the Engine Coolant Temperature ECT Sensor G62 or G83 electrical harness connector ter minals 1 to 2 Check the value indicated on the scan tool display If the value jumps to approx 140 0 C Switch the ignition OFF Replace the Engine Coolant Temperature ECT Sensor G62 or G83 If indication remains at approx 40 0 C Checking wiring If the manufacturers test box is be
175. imeter RED lead still connected to terminal 1 of the Engine Speed RPM Sensor G28 and the BLACK meter lead to ter minal 3 for resistance Specified value 11 4 MQ 1 4 M If any of the specified values are not obtained Replace the Engine Speed RPM Sensor G28 If the specified value was obtained Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Engine Speed RPM Sensor G28 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector T60 terminals for an open circuit Refer to Wiring Diagrams for pin locations Engine Speed RPM Sensor Engine Control Module G28 electrical harness connector ECM J623 electrical con i nector T60 terminals or test box socket Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open high resistance or short to ground Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the wiring Remove the Engine Speed RPM Sensor G28 and check the sensor wheel for proper seating damage and runout Refer to the Repair Manual If the sensor wheel is OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Final procedures After the r
176. ing page 142 Check the charge air system for proper seal Refer to En gine Mechani cal Fuel In jection and lg nition 21 Charge Air System Check the Wastegate Bypass Regu lator Valve N75 Refer to gt 3 5 17 Waste gate Bypass Regulator Valve Check page 144 Check the Wastegate Bypass Regu lator Valve N75 Refer to Py S517 Waste gate Bypass Regulator Valve Check Check the Wastegate Bypass Regu lator Valve N75 Refer to 3 5 17 Waste gate Bypass Regulator Valve Check page 144 52 Rep Gr ST Generic Scan Tool Cross check e a voltage gt engine ap gt 80 0 2 Sec engine shut off diff pressure in time gt 5 0 Sec front of throttle to average val ue of all pres sure sensors start gt 30 00 hPa engine speed lt 350 rpm signal voltage gt 5 6 4 4V signal voltage lt 3 25 2 15 V signal current gt 2 2 A P0261 Cylinder 1 Injector Cir cuit Low P0262 Cylinder 1 Injector Cir cuit High P0264 Cylinder 2 Injector Cir cuit Low P0265 Cylinder 2 Injector Cir cuit High P0267 Cylinder 3 Injector Cir cuit Low P0268 Cylinder 3 Injector Cir cuit High P0270 Cylinder 4 Injector Cir cuit Low P0271 Cylinder 4 Injector Cir cuit High Check the Fuel Injector N30 Refer to gt 3 5 27 Fuel Injectors page 167 Check the Fuel Injector N30 Refer to gt
177. ing used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Engine Coolant Temperature ECT Sensor G62 or G83 electrical harness connector ter minal 1 to the Engine Control Module ECM J623 electrical harness connector for an open circuit or a short to voltage refer to the chart below for the appropriate sensor Refer to Wiring Diagrams for pin locations ECT 1 Engine Coolant Tempera Engine Control Module ECM ture ECT Sensor G62 J623 electrical connector T60 ter electrical harness connec minals or test box socket tor terminals electrical harness connec tor terminals Specified values 1 5 Q Max and 0 volts disconnected from ECM If the specified value was Not obtained Check the wiring for an open or short circuit to Battery Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the signal circuit Using a multimeter check terminal 2 of the ECT sensor to en gine ground 1 62 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Specified value 1 5 Q Max If the specified value was Not obtained Check
178. ion relevant DTCs provided by the manufac turer from MY 2000 Component group Repair group Xx Fuel and ainmixture and additional emission regulations 1 Fuel and air ratios Pik 2k Fuelandairratios S Pox la x tgnition system S P x ak x Additionalexhaustsystem _ P x 5 x x Speedandidie control S P x e fx x Control module and output signals Po bk p Transmission S P k fk x Transmission S P x afk x Control modules input and output signals x x x x x x x ya x x x x x x x T x x x x x x x Te U Codes Component group INorm Code oo y O Norm Code 1 4 Rep Gr ST Generic Scan Tool TT RS 2012 gt COUP Generic Scan Tool Edition 07 2011 Auer u e PAO Trouble codes defined by SAE with specified malfunction texts Procedure Connect the scan tool Switch the ignition to the ON position Select Diagnostic Mode 03 Interrogating fault memory The stored DTC or DTCs will be displayed on the scan tool screen The following table is anvexampl of the DTC information thatmay be displayed on the scan tool screen Indication example Explanation P0444 SAE Diagnostic Trouble Code Evaporative emission canister purge regulator Malfunctioning wiring path or malfunctioning component valve Malfunction type as next Refer to the DTC tables for the diagnostic repair procedures Switch the ignition OFF 3 3 4 Diagnostic Mode 04
179. is Disconnect the secondary air injection hose Disconnect the Secondary Air Injection SAI Pump lt Motory V101 electrical harness connector 3 Diagnosis and Testing 1 15 COLD TT RS 2012 gt Avo Generic Scan Tool Edition 07 2011 Checking voltage Note The engine MUST be at ambient temperature and have at least 8 hours off time for the ECM to operate the Secondary Air Injection SAI system The SAI system may operate for as little as 10 sec onds up to 55 seconds depending on ambient temperature Ignition switch Off Using a multimeter check the Secondary Air Inj ctiom SAI Pump Motor V101 electrical harness connector terminal 2 to ground for voltage When ready start the engine while mon itoring the reading Start the engine Specified value Battery voltage Switch the ignition OFF If the specified value was Not obtained Check the wiring connection from the Secondary Air Injection SAI Pump Relay J299 socket 2 relay terminal 87 to the Secondary Air Injection SAI Pump Motor V101 electrical harness connector terminal 2 for an open circuit or a short cir cuit Check the wiring connections for damage corrosion loose or broken terminals or an open fuse Refer to the wiring diagram If necessary repair the faulty wiring connection replace fuse if needed If the wiring has no fault the fuse is not open and voltage is Not present at the pump
180. ite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P0366 Camshaft Check the signal voltage no Continu Camshaft altering refer ous Position ence gap CMP Sen j 2 DCY sor 3 G300 Re fer to gt 3 5 37 Cam shaft Posi tion Sensor page 184 Camshaft Check the _ signal voltage low Continu Camshaft 4 rev ous Position CMP Sen 2 DCY sor 3 G300 Re fer to gt 3 5 37 Cam shaft Posi tion Sensor page 184 Camshaft Check the soe voltage high Continu Camshaft 4 rev ous Position CMP Sen 2 DCY sor 3 G300 Re fer to 3 5 37 Cam shaft Posi tion Sensor page 184 64 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum __ Illum P0410 P0413 P0414 P0418 Secondary Air Injection System Secondary Air Injection System Switching Valve Cir cuit Open Secondary Air Injection System cuit Shorted Secondary Air Injection System Control Cir cuit tion pump Refer ondary Air Injec tion Pump Mo tor Checking page 175 Check the the Deviation SAI Mass airflow 7 to 0 5 Sec
181. ive Number of checks 10 Engine speed gt 1200 RPM j i See eae TT RS 2012 gt Hy Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions ee MIL llum __ Illum P0171 System Too Too Lean Bank 1 additive Check the fuel the fuel pressure Re fer to gt 3 5 2 Fuel Pump Pres sure Check ing page 113 Check the Fuel Pressure Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check Check the Fuel injectors N30 N31 N32 N33 N83 Refer to 3 0 21 Fuel Injectors page 167 Check the Heated Oxy gen Sensor HO2S G39 Refer to 3 5 20 Heat ed Oxygen Sensor page 152 Check the Oxygen Sen sor O2S Be hind Three Way Catalytic Converter TWC G130 to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 Refer ar te value continu ous 2 DCY Engine speed 560 880 RPM Engine load 12 34 mass air flow 6 25kg h ECT gt 60 0 C lambda control closed loop ee evap purge valve closed 3 Diagnogis and Testing 45 COL
182. ll leak 65535 Refer to DTC P0442 in the DTC a table gt page 70 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID 3C 60 Fuel Tank EVAP System Integrity Small Leak Test 0 20 Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 3C 60 Select the desired Test ID or Hex ID Check specified values at idle _Test ID__ Component or System Min Max Additional Information 81 129 129 P0456 Bera Tank Leak Test Very Small 4 5mSec 65535 Refer to DTC P0456 in leak mSec the DTC summary table gt page 73 20 Rep Gr ST Generic Scan Tool See eae TT RS 2012 gt Yyy Generic Scan Tool Edition 07 2011 Auer _Test ID__ Component or System tee Additional Information 82 130 130 EVAP Monitor System OK by in 6553 5 g itial Purge check If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt
183. longer than cumulative gt 12 75 Sec Catalyst heat ing active Time after en gine start gt 8 60 Sec minimal adjust ment gt 6 CA for longer than cumulative gt 12 75 Sec Catalyst heat ing active engine Span gt 80 2 Sec Seca eae TT RS 2012 gt Hy Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum __ Illum P0601 Internal Internal check Continu P0604 P0605 P0606 ECM PCM Processor P0627 Fuel Pump P0629 Fuel Pump cuit High Control Cir Control Cir Replace the the Engine Con trol Module J623 Refer to the appro priate service manual Replace the Engine Con trol Module ECM J623 Refer to the appro priate service manual Replace the Engine Con trol Module ECM J623 Refer to the appro priate service manual NOTE The BARO sensor is an internal part of the ECM and is not repairable If the BARO read ing is off by 10 or more replace the ECM Replace the Engine Con trol Module ECM J623 Refer to the Repair Manual Check the fuel pump electri cal Refer to gt 3 5 1 Fuel Pump Voltage Check the fuel pump electri cal Refer to gt 3 5 1 Fuel Pump Voltage sum incorrect
184. lt 8 98 hPa z 3 5 31 Sec ondary Air In jection Com bination Valve page 174 Refer to appro priate repair manual PCV system diagno sis amp repair signal voltage gt 3 4 V Check the Vehicle Speed sen sor Refer to Vehicle speed lt 4 km h gt 3 5 42 Spee d Signal page 194 Check the Vehicle Speed sen sor Refer to Vehicle speed gt 325 km h gt 3 5 42 Spee d Signal page 194 74 Rep Gr ST Generic Scan Tool EVAP purge valve 0 5 Sec commanded ON Engine speed gt 40 RPM Mass air flow 7 to 55 Sec 120 kg h Delta engine load 10 to 10 ECT 3 to 105 C IAT 4 5 to 143 3 C Altitude lt 2700 SAI pressure sen sor ready engine speed gt 40 1 Sec PM Fuel cutoff ac s tive lt 2 DCY multiple Engine speed 1520 to 4520 RPM ECT gt 39 8 C See eae TT RS 2012 gt Hy Edition 07 2011 Auer Generic Scan Tool Secondary Pa Monitor Frequency of rameters with En ing Time checks MIL Il able Conditions Conditions Length lum ECT gt 40 5 C 5 Sec e Continuous DTC Error Mes Diagnostic Pro Malfunction Crite sage cedure ria and Threshold Value Check the the ree P0506 idle Air Air Control System RPM Lower P0507 Idle Air Idle Air Throttle Valve Con trol Module J338 Refer to gt 3 5 19 Throt tle Valve Control Mod ule Check C
185. lt Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID A5 165 Mis Fire Cylinder 4 Data Connect the scan tool Start the engine and run at idle 3 Diagnosis and Testing 23 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID A5 165 Select the desired Test ID or Hex ID Check specified values at idle Test ID Component or System Min Max Values _ Additional Information 0B 11 P0304 Misfire cylinder 4 Average val 0 65535 counts Refer to DTC P0304 in ue over 10 Driving Cycles the DTC ely table papagevs9 0C 12 P0304 Misfire cylinder 4 in this Driving o Or 65535 counts copRefer to fis P0304 in Cycle the DTC Semen table gt page 59 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID A6 166 Mis Fire Cylinder 5 Data Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the
186. m for leaks calibrated threshold mis Check the ifre rate MR gt fuel pres 1 4 sure Refer catalyst dam to isi 35 2Fuell MR gt 4 T Pump Pres sure Check Check Fuel Injectors N30 N31 N32 N33 N83 Refer to e ey af Fuel Injec tors Check Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 lg nition Coil with Power Output Stage Checking page 192 Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum emission threshold mis ifre rate MR gt 2 Active after en gine start gt 200 RPM and 1 cam revolution Engine torque gt Nm Engine speed range idle 6000 RPM Fuel cutoff Not active ECT at start gt 20 C IAT gt 48 C if ECT start lt 20 C than wait until actual ECT gt 18 C ee TT RS 2012 gt Hy Edition 07 2011 Auer 1000 Continu Rev gt ous O re 2 DCY Misfire Rate immedi 200 ate Rev 2 5 to 24 Misfire Rate 3 Diagnosis and Testing 57 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value C
187. ment Procedure 3 3 6 Diagnostic Mode 06 Read Test Results for Specific Diagnostic Functions Diagnostic Mode 06 makes it possible to retrieve test results for special components and systems which are continuously or not continuously monitored If the diagnosis of a system is complete the diagnostic result and the corresponding thresholds are saved and displayed in mode 06 This data remains saved eveniwith the ignition off until either new diagnostic results become avail able or the DTC memory is erased The min amp max values for each individual test in Mode 06 repre sent the min amp max operating values for a properly operating system This data is provided to the individual aftermarket scan tool companies for development of their scan tool Depending on the scan tool being used the min amp max values shown may vary or be rounded up or down to the nearest decimal point depending on the aftermarket scan tool company s development process e g pO Minirmuirn Vale GST manual documentation 0 3499 Aftermarket scan tool display Note Depending on the scan tool and protocol used the information displayed in diagnostic mode 06 may be referred to by different names such as Test ID TID Hex ID Component ID CID or On Board Diagnostic Monitor Identifier OBDMID Test requirements e Exhaust system must be properly sealed between the catalytic converter and the cylinder heads e No DTCs stored in the DTC mem
188. mperature EGT Sensor 1 G235 electrical harness connector Using a multimeter check the Exhaust Gas Temperature EGT Sensor 1 G235 terminals 1 to 2 for resistance Specified value Q INFINITE If the specification was not obtained Replace the Exhaust Gas Temperature EGT Sensor 1 G2 If the specification was obtained Checking Voltage supply Disconnect the Exhaust Gas Temperature EGT Sensor 1 G235 electrical harness connector 1 Switch the ignition on Using a multimeter check the Exhaust Gas Temperature EGT Sensor 1 G235 electrical harness connector terminals 1 to 2 for voltage Specified value 0 400 to 0 500 V Switch the ignition off If any of the specified values was not obtained Checking wiring If the manufacturers test box is being used perform the following step Install the Test Box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to appropriate Repair manual 3 Diagnosis and Testing 1 29 CIGD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Using a multimeter check the Exhaust Gas Temperature EGT Sensor 1 G235 electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector terminals for an open circuit Exhaust Gas Temperature Engine Control Module ECM EGT Sensor 1 G235 J623
189. n loose or broken terminals f necessary repair the faulty wiring connection If the specified value was obtained Switch the ignition ON Using a multimeter check the Engine Control Module ECM Power Supply Relay Box socket 4 relay terminal 86 to Ground Specified value Battery voltage If the specified value was Not obtained Remove Fuse SD3 2011 gt in Fuse Panel D and check re sistance of circuit between fuse and relay terminal socket 1 Refer to Wiring Diagrams for pin locations Specified value 1 5 ohm or less If fuse is blown locate short to ground in circuit refer to wiring diagram Repair as necessary 1 70 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt Yyy Generic Scan Tool Edition 07 2011 Auer If the specified value was obtained Checking activation Remove the Engine Control Module ECM Power Supply Re lay J271 Using a diode test lamp 12 V connected to Battery check the Engine Control Module ECM Power Supply Relay Box socket 6 relay terminal 85 while cranking the engine The test lamp should be ON Switch the ignition OFF If the test lamp was ON Replace the Engine Control Module ECM Power Supply Re lay J271 If the test lamp was not ON Using a multimeter check the Engine Control Module ECM Power Supply Relay socket 4 relay terminal 85 to the Engine Control Module ECM J623 electrical harness co
190. n 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum Illum ii Lost Com Com munication naa Lost Com munication With Instru ment Panel Cluster IPC Con trol Module Check for Data for Data Bus On Board Diagnostic Inter face communi cation with scan tool If no com munication with scan tool check power and ground to Data Bus On Board Diagnostic Inter face If no other communication faults are set the ECM may be at fault Check TSB s for software up date Check for IPC communi cation with scan tool If IPC has no communica tion with scan tool check pow er and ground to cluster If present replace the cluster Check ECM cal e ibration Fault will set if ECM was program med for a man ual trans in an automatic trans mission vehicle Check the CAN Bus terminal re sistance Re tor to 3 5 43 CAN Bus Terminal Resistance Checking page 195 Check TSB s for software up date Check for correct soft ware Check to see if any other modules have set an invalid data code from TCM ABS Cluster etc If so and the soft ware is correct replace the TCM No CAN mes sages received Time after ignition on 500 mSec 500 2 DCY mSec 2000 2 DCY mSec
191. ndition 2 gt 32 52 sec Vehicle speed 20 75 mph Mass air flow lt 20 to 304 kg h check after ignition off 480 Sec TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 meee Auol DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0121 Accelerator Pedal Posi tion Sensor A Circuit Range Per formance Accelerator Pedal Posi tion Sensor Accelerator Pedal Posi tion Sensor A Circuit Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Ped al Position Sensor Ac celerator Ped al Position Sensor 2 page 147 Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Peda abPositiory Sensor bAC4 celerator Ped al Position Sensor 2 page 147 Check the Ac celerator Ped al Position Sensor 1 G79 Accel erator Pedal Position Sen sor 2 G185 Refer to gt 3 5 18 Ac celerator Ped al Position Sensor Ac celerator Ped al Position Sensor 2 page 147 TPS 1 TPS 2 gt 5 10 to 6 30 TPS 1 calc val ue gt 9 00 Signal voltage lt 0 176 V Signal voltage gt 4 83 V Engine speed gt 480 RPM
192. ne start gt 600 Sec Integrated EVAP purge flow since last purge stop gt 2 g Integrated EVAP purge flow since last monitoring run gt 0g Intake manifold vacuum gt 100 hPa Vehicle speed lt 120 km h Fuel volume flow lt 5 ml s Change in battery voltage during monitoring lt 1 50 V Engine speed not at idle and above 20 RPM O2S front ready 3 Diagnosis and Testing 67 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum ka Evaporative For Model Year e EVAP pump ECT gt 60 C current during P Check the reference ECT at start lt 60 Leak Detec measurement c er lt 15 mA AAT gt 4 and lt 35 ence Orifice C High Flow to Altitude lt 2700 m 3 5 13 Leak Time since engine Detection start gt 600 Sec Pum Inte Bo grated EVAP Checking purge flow sine page 136 last purge stop gt 2 g Integrated EVAP purge flow since last monitoring run gt 0g Intake manifold vacuum gt 100 hPa Vehicle speed lt 120 km h Fuel volume flow lt 5 ml s Change in battery voltage during monitoring lt 1 50 V Engine speed not at idle and above 20 RPM O2S front ready 68 Rep Gr ST Generic Scan Tool meme TT RS 2012 gt Hy Generic Scan Tool Edition 07 201
193. nection between the accelerator pedal and the throttle valve The position of the accelerator pedal is communicated to engine control module ECM by the throttle position sensor accelerator pedal position sensor 2 variable resistances stored in one hous ing that are connected with the accelerator pedal The accelerator pedal position driver s intention is a main input unit for the ECM Operation of the throttle valve occurs via an electric motor the throttle drive for in the throttle valve control module This is true across the entire engine speed and engine load spectrum The throttle valve is operated by the EPC according to specifica tions of engine control module ECM With engine off and ignition switched on the ECM controls the throttle drive according to specifications of throttle position sen sor accelerator pedal position sensor 2 This means if the accelerator pedal is pressed half way the throttle drive opens the throttle valve to the same degree i e throttle valve is then opened approximately half way With engine running under load ECM can open or close the throt tle valve independently of the throttle position sensor accelerator pedal position sensor 2 This means for example that the throttle valve could be fully opened even though the accelerator pedal has only been pressed half way This has the advantage of preventing torque losses at the throttle valve In addition it results in a signifi
194. ng parts or adapter cables when the igni tion is on or the engine is running or turning at starting RPM Only disconnect and reconnect wires for injection and ig nition system including test leads when the ignition is turned off an remo A and installing eens from full or partially 2 o SI SRO HGSFORI Bl partially full How much fuel can remain in the fuel tank may be read in the respective work description Empty the fuel tank if necessary AN Caution The battery must only be disconnected and connected with the ignition switched off Otherwise the engine control module ECM can be damaged The use of nails paper clips or another unauthorized materials to back probe electrical harness connectors is strictly prohibi ted and may cause damage to the electrical harness connec tors terminal ends or to a component Use only the manufacturers test lead kit or an equivalent aftermarket test lead kit for back probing all electrical harness connectors Do not use sealants containing silicone Particles of silicone drawn into the engine will not be burnt in the engine and will damage the oxygen sensors Secure all hose connections with the correct hose clips the same as original equipment If engine is to be cranked without starting for example as part ofa compression test remove the fuses for the voltage supply of Ignition Coils and the fuel injector An electrostatic charge can lead to functional problems of elec tric
195. nnector T94 terminal 69 for resistance Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring connection for an open circuit high resist ance or short circuit to Battery Check the wiring connection for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is found in the wiring and ground was not present from the ECM during crank Replace the Engine Control Module ECM J623 Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 29 Engine Component Power Supply Re lay Checking Special tools and workshop equipment required Multimeter wiring diagrams Test requirements e Fuse SB 1 OK e The Engine Control Module ECM Power Supply Relay J271 OK 3 Diagnosis and Testing 1 71 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 e The Ground GND connections at the engine and transmis sion OK e The battery voltage at least 12 5 V The generator OK Test
196. nosis Remove the drivers side storage compartment Refer to the Repair Manual Disconnect the Accelerator Pedal Position Sensor G79 Ac celerator Pedal Position Sensor 2 G185 6 pin electrical har ness connector Checking voltage supply and wiring Switch the ignition On Using a multimeter check the following wiring connections for voltage Accelerator Pedal Position Sensor 1 Specified value G79 Accelerator Pedal Position Sensor 2 G185 electrical harness connector terminals Switch the ignition OFF If the specified value was Not obtained Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Accelerator Pedal Position Sen sor G79 Accelerator Pedal Position Sensor 2 G185 elec trical harness connector terminals to the Engine Control Module ECM J623 electrical connector T94 for an open circuit Refer to Wiring Diagrams for pin locations Accelerator Pedal Position Sen Engine Control Module sor G79 Accelerator Pedal ECM J623 electrical con Position Sensor 2 G185 elec nector T94 terminals or test sey harness connector termi box sockets nals Specified value 1 5 Q max 1 48 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt Yyy Generic Scan Tool Edition 07 2011 Auer If the specified value was Not obtained Check the wiring for high resistance a short circuit to each othe
197. ns Repair or replace any damaged component If no leaks are found in the EVAP or Fuel Supply System Erase the DTC memory if a code was set Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 Perform a road test to verify repair Generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 8 EVAP Canister Purge Regulator Valve 1 Checking Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e The Evaporative Emission EVAP Canister Purge Regulator Valve 1 N80 fuse OK e The ignition switched OFF 1 24 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt Yyy Generic Scan Tool Edition 07 2011 Auer a Note Voltage for the Evaporative Emission EVAP Canister Purge Regulator Valve 1 N80 is supplied via the Engine Component Power Supply Relay J757 Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis etc Remove the engine cover with air filter Refer to the Repair Manual Disconnect the Evaporative Emission EVAP Canister Purge Regulator Valve 1 N80 electrical harness connector Checking internal resistance Using a multimeter check the Evaporative Emission EVAP Canister Purge Regulator Valve 1 N80 terminals 1 and 2 for resistance Specified value 15 0 to 22 0 Q If
198. nsord Intake Aired emperature Sensor 2 Checking page 142 gt 3 5 17 Wastegate Bypass Regulator Valve Checking page 144 gt 3 5 18 Accelerator Pedal Position Sensor Accelerator Pedal Position Sensor 2 Checking page 147 gt 3 5 19 Throttle Valve Control Module Checking page 149 gt 3 5 20 Heated Oxygen Sensor Checking page 152 gt 3 5 21 Oxygen Sensor Heater Checking page 154 gt 3 5 22 Oxygen Sensor after Catalytic Converter Checking page 156 gt 3 5 23 Oxygen Sensor 1 after Catalytic Converter Heater Checking page 158 gt 3 5 24 Engine Coolant Temperature Sensor 1 or 2 Checking page 160 gt 3 5 25 Ambient Air Temperature Sensor Checking page 164 gt 3 5 26 Engine Speed Sensor Checking page 166 gt 3 5 27 Fuel Injectors Checking page 167 gt 3 5 28 ECM Voltage Supply Checking page 170 gt 3 5 29 Engine Component Power Supply Relay Checking page 171 gt 3 5 30 Catalytic Converter Checking page 173 gt 3 5 31 Secondary Air Injection Combination Valve Checking page 174 gt 3 5 32 Secondary Air Injection Pump Motor Checking page 175 gt 3 5 33 Secondary Air Injection Pump Relay Checking 3 Diagnosis and Testing 111 CAU TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 page 177 gt 3 5 34
199. nt gt 24 mA Signal voltage gt 5 2 6 0V Signal current gt 24mA Engine speed gt 1500 RPM short to ground signal voltage lt 0 5 1 0V Engine speed gt 1500 RPM Engine speed gt 1500 RPM TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P2304 Ignition Coil Auol Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY Continu ous 2 DCY 3 Diagnosis and Testing 99 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P2310 Ignition Coil Check the lg Signal voltage j Engine speed gt e Continu D Primary nition Coils gt 5 2 6 0V 1500 RPM ous Control Cir with Power cuit High Output 2 DCY o Refer 3 5 41 Ig nition Coil with Power Output Stage page 192 P2312 Ignition Coil Check the Ig Signal current e Engine speed gt 0 Continu E Primary nition Coils gt 24 mA 1500 RPM ous Control Cir with Power cuit Low Output 2 DCY Stage Refer to gt 3 5 41 lg nition Coil with Power Output Stage page
200. nt pressure gt 743 5 hPa number of diagno sis attempts lt 15 IAT gt 4 C delta ambient pressure lt 300 Pa IAT drop after en gine start lt 7 K Time after engine start gt 175 1200 Sec ECT 4 115 C Vehicle speed gt 19 mph selected gear any drive 150 Sec Once e 2DCY meme TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0456 Evaporative Emission System Leak Detec ted very small leak Check the EVAP Sys tem for 1 85 2 15 lt x Leaks Refer lt 4 5 6 5 s to depending on gt altidude and 3 5 7 EVAP IAT System Checking for Leaks page 123 Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 page 124 time for pres sure drop For Model Year 2011 gt P0458 Evaporative Emission System Purge Con trol Valve Circuit Low Check the Leak Detec tion Pump LDP V144 Refer to gt 3 5 13 Leak Detection Pump page 136 Check the e Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Rurge Reque lator Valve 1 page 124
201. on 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P2626 O2 Sensor Sensor Trim Circuit Open Bank 1 Sensor 1 P3081 Engine Check the the e Oxygen Sen sor O2S G39 Refer O2S signal front gt 3 1 V engine start com 4 Sec e 2DCY pleted engine speed gt 25 rom O2S ceramic temp gt 720 C Modeled exhaust temp lt 750 C Fuel cut off Active Heater control closed loop l d MIL Illum Difference be ECT lt 48 C 2 Sec e Once tween ECT and modeled ECT gt 2DCY 10K Check the coolant ther mostat Re fer to the Re pair Manual Check the Engine Cool ant Temper ature ECT Sensor G62 gine Coolant Temperature Sensor 1 or page 160 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Walterin Copying for prhditionSnmercial purposes in pfLengthiec is MIL Illum Mong High Speed Speed CAN Com munication Bus Check thewin the CAN Bus terminal re sistance Re fer to gt 3 5 43 CAN Bus Terminal Resistance page 195 Continu ous e 2DCY CAN message Time after a ani 250 no feedback 500 mSec 3 Diagnosis and
202. onditions Length Illum P0303 Cylinder 3 Check the emission Active after en e 1000 Continu Edition 07 2011 Misfire De Spark plugs threshold mis tected ifre rate MR gt Check the in 2 take system for leaks calibrated threshold mis Check the ifre rate MR gt fuel pres 1 4 sure Refer catalyst dam to isi 3 5 2Fuel MRS 447 Pump Pres sure Check Check Fuel Injectors N30 N31 N32 N33 N83 Refer to gt S3 5 27 Fuel Injec tors Check page 167 Check the Ig nition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to gt 3 5 41 Ig nition Coil with Power Output Stage page 192 58 Rep Gr ST Generic Scan Tool gine start gt 200 RPM and 1 cam revolution Engine torque gt Nm Engine speed range idle 6000 RPM Fuel cutoff Not active ECT at start gt 20 C IAT gt 48 C if ECT start lt 20 C than wait until actual ECT gt 18 C Rev gt 2 5 Misfire Rate 200 Rev 2 5 to 24 Misfire Rate ous 2 DCY immedi ate Generic Scan Tool ee TT RS 2012 gt Hy Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Param Monitoring Frequency of sage cedure ria and Threshold eters with Enable Time checks MIL Value Conditions Length Illum P0304 Cylinder 4 Misfire De tected Check the Spark plugs Check the in
203. operation of the engine the ECM switches on the MIL and an entry is stored in the DTC memory of the ECM 1 5 Controller Area Network Data Link The engine control module ECM communicates with data bus capable control modules via a CAN Data Link The data bus capable control modules are connected via data bus wires which are twisted together CAN high and CAN low and exchange information with the ECM Missing or implausible in formation on the data bus is recognized and stored as a malfunc tion based on specific DTC criteria The malfunction indicator lamp MIL is illuminated as a result of a CAN message sent by the ECM The MIL can be turned on turned off or blink depending on the message received 1 6 Electronic Power Control Warning Lamp The engine control module ECM monitors electronic power con trol EPC components when the ignition is switched on If a malfunction is recognized in the EPC system the ECM switches on the EPC warning lamp which is located in the in strument cluster and an entry is stored in the DTC memory of the ECM 4 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt Yyy Generic Scan Tool Edition 07 2011 Auer 2 Description and Operation Check for technical bulletins that may supersede any information included in this manual Observe all safety precautions gt 1 1 Safety Precautions page 2 View clean working conditions gt 1 2 Clean Working Conditions
204. orkshop equipment required Multimeter Wiring diagram Test requirements The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched OFF Function The Engine Speed RPM Sensor G28 detects RPM and refer ence marks Without an engine speed signal the engine will not start If the engine speed signal fails while the engine is running the engine will stall Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Connect the scan tool Switch the ignition ON Using the scan tool check the engine speed Switch ignition OFF If the specified value was Not obtained Checking internal resistance Disconnect the Engine Speed RPM Sensor G28 electrical harness connector Using a multimeter connect the RED meter lead to terminal 1 of the Engine Speed RPM Sensor G28 and the BLACK meter lead to terminal 2 for resistance Specified value 11 4 MQ 1 4 M 1 66 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Mult
205. orma preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to the appropri ate service manual Checking internal resistance 1 26 Rep Gr ST Generic Scan Tool A A97 0973 TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer Disconnect the Exhaust Flap Valve 1 N321 electrical har ness connector 2 Using amultimeter checkithe Exhaust Map Valvec4 N321 terminals 1 to 2 for r sistance Specified value 13 6 5 Q at room temp If the specification was not obtained Replace the Exhaust Flap Valve 1 N321 Refer to the ap propriate service manual If the specification was obtained Checking Voltage supply Using a multimeter check the Exhaust Flap Valve 1 N321 electrical harness connector terminal 1 to Ground GND Exhaust Flap Valve 1 N321 electrical har Measure to ness connector terminal _ _ _ connector terminal Engine Ground Ground GND Operate the engine briefly Specified value battery voltage Switch the ignition off If the specified value was not obtained Check the wiring for a short circuit to each other Battery and Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals If necessar
206. ory Coolant temperature at least 80 C 1 6 Rep Gr ST Generic Scan Tool TT RS 2012 gt Q Generic Scan Tool Edition 07 2011 Auer 4 gt Work procedure Connect the scan tool Start the engine and run at idle a Note If the engine does not start crank the engine using starter for at least 5 seconds do not switch the ignition off afterward Select Mode 6 Check test the results of components that are not continuously monitored Select the desired Monitor ID of the component or system that is to be monitored e g Monitor ID 01 Oxygen Sensor Monitor Bank 1 Sensor 1 Select the desired Test ID The current minimum and maximum values will be displayed on the scan tool screen The following table is a numerical list of all Monitor ID s or Hex ID s that may be selected gt page 17 gt page 18 page 18 35 page 19 page 19 page 20 page 20 page 21 2 page 21 gt page 22 page 22 A3 gt page 23 page 23 page 23 page 24 Monitor ID 01 01 Oxygen Sensor Monitor Bank 1 Sensor 1 Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 01 01 Select the desired Test ID or Hex ID Check specified values at idle TestID Component or System m v Addi
207. ound Ground GND Operate the engine briefly Specified value battery voltage Switch the ignition off If the specified value was not obtained Check the wiring for a short circuit to each other Battery and Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the wiring connection If no malfunctions are found in the wiring Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the appropriate service manual 3 Diagnosis and Testing 1 4 1 CAU TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Using a multimeter check the Turbocharger Recirculating Valve N249 electrical harness connector terminal 2 to En gine Control Module ECM J623 electrical harness connec tor T60 terminal 31 for an open circuit Turbocharger Recirculating Engine Control Module ECM Valve N249 electrical har J623 electrical connector T60 ness connector terminal terminal or test box socket Specified value 1 5 Q max If the specification is not obtained Check the wiring for a short circuit to each other Battery and Ground GND Check the electrical harness connector for damage corrosion loose
208. ove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Fuel Injector electrical harness connector terminals to the Engine Control Module ECM J623 electrical harness connector T60 terminals for an open circuit Refer to Wiring Diagrams for pin locations Component Fuel Injec Engine Control tor electri Module ECM cal har J623 electrical ness con connector T60 nector ter terminals or test minals box sockets Cylinder 2 Fuel Injector N31 2 3 Cylinder 3 Fuel Injector N32 2 18 Cylinder 4 Fuel Injector N33 2 19 Cylinder 5 Fuel Injector N83 2 17 Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open high resistance or short to volt age or ground Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring If no malfunction is detected in the wiring and If the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Install the engine cover with air filter Refer to the Repair Man ual Final procedures Afterthe repair work the following work steps must be performed incthe following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to
209. ow de froster switched off e On vehicles with automatic transmission selector lever in po EA ARR aise sition P or N 28 gasra i e A C switched off 7 C38 PY a aay she e Ground GND connections between engine transmission ECD R1 gigis re 5 chassis OK 40 AAT 461 e Ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to the appropri ate service manual Checking internal resistance Disconnect the Turbocharger Recirculating Valve N249 elec trical harness connector 2 1 40 Rep Gr ST Generic Scan Tool TT RS 2012 gt COP Generic Scan Tool Edition 07 2011 Aue Using a multimeter check the Turbocharger Recirculating Valve N249 terminals 1 to 2 for resistance Specified value 13 6 5 Q at room temp If the specification was not obtained Replace the Turbocharger Recirculating Valve N249 Refer to the appropriate service manual If the specification was obtained Checking Voltage supply Using a multimeter check the Turbocharger Recirculating Valve N249 electrical harness connector terminal 1 to Ground GND Turbocharger Recirculating Valve N249 Measure to electrical harness connector terminal _ harness connector terminal Engine Gr
210. porative or thermostat monitor allow the engine to cool until the coolant temperature and the ambient air temperature are be between 10 C and 35 C with a difference no greater than 4 C and repeat the drive cycle operation If the drive cycle operation fails again Check the DTC memory for stored DTCs Repair the vehicle if necessary Repeat the drive cycle operation until all engine monitors have successfully run through and passed Remove the scan tool and switch the ignition off 3 3 Diagnostic Modes 01 0A The information provided in Modes 01 through OA displays the various levels of emission related data that may be monitored as well as the ability to retrieve and read stored DTC trouble codes erase stored DTC trouble codes generate readiness codes and select the various PIDs and Test IDs used within the modes to monitor the engine and emission related component parameters Note Depending on scan tool and protocol used the information in di agnostic mode 01 may be referred to by different names such as Test ID TID Hex ID Component ID CID or On Board Diag nostic Monitor Identifier OBDMID 1 0 Rep Gr ST Generic Scan Tool TT RS 2012 gt C Generic Scan Tool Edition 07 2011 gt 3 3 1 Diagnostic Mode 01 Read Current System Data page 11 gt 3 3 2 Diagnostic Mode 02 Read Operating Conditions page 12 gt 3 3 3 Diagnostic Mode 03 Read DTC Memory
211. pressure Read fuel pressure on the gauge Specified value 3 5 to 4 3 bar Turn the ignition switch OFF If specification is exceeded Check return line between fuel filter and fuel pump for kinks or blockage If no malfunction in fuel return line is found Pressure relief valve in fuel filter is malfunctioning Replace the fuel filter Refer to the Repair Manual If specified value was Not obtained Check fuel pressure at the fuel filter between fuel pump and fuel filter using appropriate adapters Open shut off valve on gauge and start the engine Allow to idle Slowly close the pressure gauge shut off and note the fuel pressure Pressure must increase to 4 bar When 4 bar is reached Open shut off tap immediately Turn the ignition switch OFF If pressure has increased during test Fuel pump is OK Pressure relief valve in fuel filter is malfunc tioning Replace the fuel filt r Refer to the Repair Manual If pressure did not increase Fuel pump is faulty Replace the fuel pump Refer to the Repair Manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 1 1 4 Rep Gr ST G
212. procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Turn key on Using a Multimeter check the following wiring connection for voltage Engine Component Power Measure to Supply Relay J757 socket Specified value 12 5 V If the specified value was not obtained Turn key off Check the Engine Component Power Supply Relay J757 socket 8 87 to the Battery positive terminal for an open circuit or short to Ground GND Check the electrical harness connectors for damage corro sion loose or broken terminals If necessary repair the wiring connection If no malfunctions are found in the wiring Switch the engine on Using a Multimeter check the following wiring connection for voltage EnginerGomponent Measure to Engine Control Module Power Supply Relay ECM Power Supply Relay J271 J757 socket 8 87 8 87 Specified value 12 5 V Switch the engine off If the specified value was not obtained Check the electrical harness connectors for damage corro sion loose or broken terminals If necessary repair the wiring connection If no malfunctions are found in the wiring Checking Ground GND If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol
213. r Battery or Ground Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no fault is detected in the wiring and if the voltage supply was Replace the Accelerator PedalPosition Sensor GTI Atel erator Pedal Position Sensor 2 G185 Refer to the Repair Manual If no fault is detected in the wiring and if the voltage supply was Not OK Replace the Engine Control Module ECM J623 Refer to the Repair Manual Install the drivers side storage compartment Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 19 Throttle Valve Control Module Check Ing a Note Use only gold plated terminals when servicing terminals in har ness connector of Throttle Valve Control Module J336 Special tools and workshop equipment required Multimeter Wiring diagram Test requirements The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and re
214. r System Min Max Values Additional Information 0B 11 P0302 Misfire cylinder 2 Average val 0 65535 counts Refer to DTC P0302 in ue over 10 Driving Cycles the DTC pren table gt page 57 0C 12 P0302hMisfire cylinder 2 inthis Driving4ocunO 65535i counts Refer to DTC P0302 in Cycle the DTC ee gt page 57 If any of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID A4 164 Mis Fire Cylinder 3 Data Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID A4 164 Select the desired Test ID or Hex ID Check specified values at idle Test ID Component or System Min Max Values Additional Information 0B 11 P0303 Misfire cylinder 3 Average val 0 65535 counts Refer to DTC P0303 in ue over 10 Driving Cycles the DTC ee table gt page 58 0C 12 P0303 Misfire cylinder 3 in this Driving 0 65535 counts Refer to DTC P0303 in Cycle the DTC m table gt page 58 Ifany of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fau
215. re Mode OA enables the request of all OBD relevant faults with the status Permanent Fault Code Permanent Fault Codes are Confirmed Fault Codes that are currently activating the MIL That means faults that are still displayed in Mode 03 but no longer ac tivate the MIL History Fault Codes are not Permanent Fault Codes Permanent Fault Codes are updated in Mode OA at the same time as NVRAM storage immediately after switching the ignition off A newly detected Permanent Fault Code is only visible after switching the ignition off on in Mode OA Permanent Fault Codes may only be erased in the control module after they are corrected as long as the last diagnostic result was a PASS and the MIL is no longer activated by this fault The Permanent Fault Codes should be erased from Mode OA at the same time the MIL switches off when the ignition is switched off on Permanent Fault Codes may not be erased by clearing the DTC memory or disconnecting the power supply Storage in NVRAM is required Permanent Fault Codes may only be erased after clearing the DTC memory under the following conditions As long as no FAIL diagnostic result was detected for a Permanent Fault Code and 26 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer at least one PASS diagnostic result was detected and the Min imum Trip Conditions for a General Denominator without con sidering high ambient temperatu
216. re were met in this phase in any DCY after erasing the DTC memory The engine control module relays the message Minimum Trip conditions met to all other OBD control modules via CAN CAN message OBD_01 Byte 8 Bit 4 OBD_Minimum_Trip Permanent Fault Codes may NOT be erased if the diagnostic result is FAIL after clearing the DTC memory A Pending Fault Code should be stored and the DTC memory line should be overwritten with new Freeze Frame data Exception If the Pending Fault Code is corrected without a Con firmed Fault Code being detected the Permanent Fault Code may also be erased under the conditions described below Perma nent Fault Codes should be erased in engine control modules after Update Programming At this time all readiness bits Mode 01 PID 01 must be reset to not complete g 4 4 6 D Per manent Fault Codes should not be erased in OBD control mod ules with Comprehensive Components CCM as a single readiness bit if the identical program data status is being pro grammed If a different program data status is being program med Permanent Fault Codes should be erased after Update Programming The procedure in Mode 01 through Mode 09 and in the service tester is NOT affected by implementation of the Permanent Fault Codes DTC Tables DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of c
217. re minus engine temper ature engine start AND ambient tem perature minus intake air tem perature en gine start 40 25K short to ground Ambient air temprat 8 G pressure con trol activity gt 1 2 mPa AND fuel trim activi ty 0 1 3 Engine off time gt 6 18 h engine tempera ture engine start minus intake air temperature en gine start lt 40 25 K intake air tempera ture engine start engine tempera ture engine start minus engine tem perature condi tion lt 1 5 C time since engine start gt 60 Sec ambient tempera ture engine start minus ambient temperature condition lt 5 25 C vehicle speed gt 25 mph for time gt 30 Sec intake air tempera ture engine start minus intake air temperature condition lt 5 25 C vehicle speed gt 25 mph for time gt 30 Sec CAN active fuel cut off not ac tive e lambda control closed loop TT RS 2012 gt Hy Edition 07 2011 Generic Scan Tool ee Auol DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions a MIL Illum Illum P0089 Fuel Pres Pres sure Regu lator 1 Per formance P0097 Intake Air Tempera ture Sensor 2 Circuit high Input P0098 Intake Air Tempera ture Sensor 2 Circuit low Input
218. resistance This central terminal resistance is located in the Engine Control Module J623 Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Disconnect the Direct Shift Gearbox DSG Mechatronic J743 electrical harness connector a Note The Engine Control Module J623 must remain connected for the following step Using a multimeter check the Direct Shift Gearbox DSG Mechatronic J743 electrical harness connector terminals 10 to 15 for resistance Specified value 60 to 72 Q at approx 20 C If the specified value was obtained Check the TCM power and grounds at the module Refer to the Wiring Diagram If power or ground is lost the TCM will not communicate Correct any power or ground fault before replacement of any component If the TCM has power and ground present Bus resistance was OK and the TCM does not communicate Replace the Direct Shift Gearbox DSG Mechatronic J743 Refer to the Repair Manual If the specified Bus resistance was Not obtained Remove the Engine Control Module J623 Refer to the Re pair Manual Using a multimeter check the Direct Shift Gearbox DSG Mechatronic J743 electrical harness connector to the Engine Control Module J623 electrical harness connector T94 for resistance 1 98 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt
219. rminals nector T94 terminals or test box socket Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open high resistance short to Battery or Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the wiring Replace the Engine Control Module ECM J623 Refer to appropriate service manual Install the engine cover with air filter Refer to appropriate service manual 3 Diagnosis and Testing 1 39 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 15 Turbocharger Recirculating Valve Checking Special tools and workshop equipment required multimeter Wiring diagram Test requirements The Engine Control Module ECM J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear wind
220. rt circuit to each other Battery or Ground Check the electrical harness connector for damage corrosion loose or broken terminals f necessary repair the faulty wiring connection If no malfunction is found in the wiring and voltage supply was Replace the Secondary Air Injection SAI Pump Relay J299 Erase the DTC memory Perform a road test to verify repair Final procedures After repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 1 78 Rep Gr ST Generic Scan Tool meee TT RS 2012 gt Yyy Generic Scan Tool Edition 07 2011 Auer 3 5 34 Secondary Air Injection Solenoid Valve Checking Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e The Secondary Air Injection SAI Solenoid Valve N112 fuse OK e The Engine Control Module ECM Power Supply Relay J271 and the Fuel Pump Relay J17 fuse OK e Battery voltage at least 12 5 V All electrical consumers switched off radiator fan must NOT run during test e A C switched off e The ignition switched OFF Tes
221. s P2178 System Too s Rich Off Idle Malfunction Crite Secondary Pa DTC Error Mes Diagnostic Pro sage cedure ria and Threshold Value Check O2 sensor opera tion If any O2 codes are set diagnose them first Check the fuel pressure Re fer to gt 3 5 2 Fuel Pump Pres sure Check Ing Adaptive value Check for a vacuum leak or poorengine gasket seal Check the Secondary Air Injection Combination Valve Refer to gt 3 5 31 Sec ondary Air In jection Combi nation Valve page 174 Check O2 sensor opera tion If any O2 codes are set diagnose them first Adaptive value lt 20 Check the fuel pressure Re fer to gt 3 5 2 Fuel Pump Pres sure Check Check the Evaporative Emission EVAP Can ister Purge Regulator Valve N80 Refer to gt 3 5 8 EVAP Canister Purge Regu lator Valve 1 page 124 rameters with En able Conditions pe TT RS 2012 gt Hy Generic Scan Tool Edition 07 2011 Auer Monitoring Frequency of Time checks MIL Length Illum Number of in 25 Sec 2DCY jections after engine start gt 1500 Engine speed lt 860 RPM Mass air flow lt 35 kg h ECT gt 59 C IAT lt 85 C Ratio manifold pressure to ambient pres sure gt 0 20 Delta partload adaptation ready Lambda con trol closed loop EVAP purge valve closed Valve overlap lt 40 CRK Number of in 25 Sec
222. s below specification locate wiring fault in ground or power circuit Refer to wiring diagram for location If voltage is OK connect multimeter positive lead to terminal 3 of the Fuel Pump Control Module harness connector The ground lead remains on terminal 6 Crank the engine and note voltage displayed on multimeter during crank Voltage should be within 2 5 volts of battery volt age If voltage is below specification locate wiring fault in the power circuit Refer to wiring diagram for location If voltage is OK connect multimeter positive lead to terminal 2 of the Fuel Pump Control Module harness connector The ground lead remains on terminal 6 Crank the engine and note voltage displayed on multimeter during crank Voltage should be 3 2 volts 4 If voltage is below specification check circuit from Fuel Pump Control Module to ECM for open short or high resistance and repair as necessary If no circuit fault is found replace ECM If voltage is OK reconnect the wiring harness to the Fuel Pump control Module Test procedure for Fuel Pump Control Module Remove the floor sealing cover to access the Fuel Delivery Unit fuel pump Disconnect the harness connector from the Fuel Delivery Unit Connect the multimeter positive lead to terminal 1 of the Fuel Delivery Unit harness connector Connect the multimeter ground lead to terminal 5 of the Fuel Delivery Unit harness connector Crank the engine and note
223. s for pin locations Heated Oxygen Sensor Engine Control Module ECM J623 HO2S G39 electrical electrical connector T94 terminals or harness connector ter test box sockets minals Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open high resistance short circuit to each other Battery or Ground Check the electrical harnessiconnectorfordamage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is found in the wiring and the voltage was Not Replace the Engine Control Module ECM J623 Refer to the Repair Manual 3 Diagnosis and Testing 1 53 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 21 Oxygen Sensor Heater Checking Note When servicing terminals in harness connector of Oxygen Sensor 02S Heater Z19 use only gold plated terminals Special tools and workshop equipment required Multimeter Wiring di
224. se or broken terminals If necessary repair the faulty wiring connection and replace fuse if blown If the specified value was obtained Checking activation AN WARNING Do not touch the Ignition Coils connecting parts or adapter ca bles during the following test Disable the power supply to the Fuel Injectors N30 N31 N32 N33 N83 by removing fuse Connect a diode test lamp to the Ignition Coil electrical har ness connector terminals 2 and 3 Crank the engine while monitoring the diode test lamp The LED should flicker Switch the ignition OFF If the LED flickers and the voltage was OK Replace the faulty Ignition Coils with Power Output Stage N70 N127 N291 N292 N323 Refer to the Repair Manual If the LED does not flicker Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter Check the Ignition Coil electrical harness connector to the Engine Control Module ECM J623 elec trical harness connector T60 for an open circuit Refer to Wiring Diagrams for pin locations TT RS 2012 gt CoP 3 Diagnosis and Testing 1 93 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Ignition Coils with Power Engine Control Module ECM elec Output Stage trical harness connector T60 termi N70 N127 N291 N292 nal or test box socket N323 electrical harness connector terminal Specified value
225. shes on other models when signal is out of range If the specified value was Not obtained Checking internal resistance Disconnect the Ambient Air Temperature Sensor G17 elec trical harness connector Using a multimeter check the Ambient Air Temperature Sen sor G17 terminals 1 to 2 for resistance Use the chart below for the specified values Specified values AAT Temperature vs Resistance Temp C min value ohms 5 max value ohms max value ohms 1811 2941 26863 2415 N NIIA IOJ gt AJjJ oj o NINI A NJOI W EN iN MN 519 68 1 64 Rep Gr ST Generic Scan Tool ee TT RS 2012 gt CHO Generic Scan Tool Edition 07 2011 Auer If the specified value was Not obtained Replace the Ambient Air Temperature Sensor G17 Refer to the Repair Manual If the specified values are obtained continue the test according to the following table Checking wiring Turn the ignition switch ON Connect a multimeter to terminals 1 and 2 of the Ambient Air Temperature Sensor G17 electrical harness connector Specified value near 5 02 V Turn the ignition switch OFF If the specified value was Not obtained Remove the Instrument Cluster Refer to the Repair Manual Disconnect the Instrument Cluster harness Using a multimeter check the Ambient Air Temperature Sen sor G17 electrical harness connector terminals 1 and
226. sible When servicing terminals in harness connector of Oxygen Sensor 02S 1 behind Three Way Catalytic Converter TWC Heater 229 use only gold plated terminals Special tools and workshop equipment required Multimeter Wiring diagram Test requirements e The Oxygen Sensor O2S Behind Three Way Catalytic Con verter TWC G130 fuse SB6 in Fuse box B is OK e Battery voltage at least 12 5 volts e All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground connections between engine transmission chassis OK e Ignition switched OFF Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the right vehicle floor cover Checking internal resistance Disconnect the Oxygen Sensor O2S Behind Three Way Cat alytic Converter TWC G130 electrical harness connector Using a multimeter check the Oxygen Sensor 02S 1 behind Three Way Catalytic Converter TWC Heater Z29 electrical harness connector terminals 1 to 2 for resistance Specified value 2 5 to 14 0 Q at approx 20 C If the specified value was Not obtained Replace the Oxygen Sensor O2S Behind Three Way Cata lytic Converter TWC G130 If the specified value was obtain
227. start gt 175 1200 Sec ECT 4 115 C Vehicle speed gt 19 mph selected gear any drive 1 02 Rep Gr ST Generic Scan Tool TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum __ Illum P2404 Evaporative Check the the je High signal et commanded Emission Leak Detec voltage gt 0 36 tion Pump Sec P evap purge valve V144 Refer closed to Range Per gt a j formance 3 5 13 Leak Detection LDP activated Se Pump lected gear any Checking drive page 136 ambient pressure gt 743 5 hPa number of diagno sis attempts lt 15 IAT gt 4 C delta ambient pressure lt 300 Pa IAT drop after en gine start lt 7 K Time after engine start gt 175 1200 Se ECT 4 115 Vehicle speed gt 19 mph selected gear any drive 3 Diagnosis and Testing 1 03 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P2407 Evaporative Checkthe e Fluctuation of ECT gt 60 C 21 5 Sec 2DCY issi Leak Detec EVAP pump 2 y
228. stic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0030 HO2S Check the e heater voltage engine start com Oxygen Sen 4 4 5 6 V pleted sor O2S Heater G39 engine speed gt 40 Refer to rpm gt 3 9 21 Oxy heater control ac gen Sensor tive for 10 Sec Heater Checking heater comman page 154 ded off P0031 Check the e heater voltage engine start com 10 7 Oxygen Sen lt 2 15 3 25V pleted Sec Control Cir sor O2S cuit Low Heater G39 engine speed gt 40 Bank 1 Sen Refer to rpm sor 1 gt 3 5 21 Oxy heater control ac gen Sensor tive for 10 Sec Heater Checking heater comman page 154 ded off P0032 Check the Heater current gt engine start com 10 7 Oxygen Sen 2 2 A pleted Sec i sor O2S it Hi Heater G39 engine speed gt 40 Refer to rpm gt 3 5 21 Oxy heater control ac gen Sensor tive for 10 Sec Heater Checking heater comman page 154 ded on P0036 Check the Heater voltage Heater ready for 10 7Sec Oxygen Sen 4 40 to 5 60 V 10 s since 02S i sor 02S rear dewpoint ex i Heater ceeded G130 Refer l to Time after engine gt 3 5 23 Oxy start gt 5 Sec gen Sensor 1 heater comman after Catalytic ded off Converter Heater Engine speed gt 40 Checking RPM page 158 P0037 Check the heater voltage lt Heater ready
229. t Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove the engine cover with air filter Refer to the appropri ate service manual Checking internal resistance Disconnect the Wastegate Bypass Regulator Valve N75 electrical harness connector 1 Using a multimeter check the Wastegate Bypass Regulator Valve N75 terminals 1 to 2 for resistance Specified value 20 to 30 Q at room temp If the specification was not obtained Replace the Wastegate Bypass Regulator Valve N75 Refer to the appropriate service manual If the specification is obtained Checking Voltage supply H lols lokol it AINSI 4 aes sb JP AHA 4 38 ry ral cj R1 3 3 45 a0 Oza Ca 3 Diagnosis and Testing 1 45 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Using a multimeter check the Wastegate Bypass Regulator Valve N75 electrical harness connector terminal 1 to Ground GND Wastegate Bypass Regulator Measure to Valve N75 electrical harness con nector terminal pt Engine Ground GND Operate the engine briefly Specified value battery voltage Switch the ignition off If the specification was not obtained Check the wiring for a short circuit to Battery positive or an open circuit Check the electrical harness connector for damage corrosion loose
230. t 20 kg m engine load gt 10 30 lambda control closed loop fuel cutoff not ac tive 3 Diagnosis and Testing 8 1 COLD TT RS 2012 gt Au Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency of sage cedure ria and Threshold ters with Enable ing Time checks MIL Value Conditions Length Illum Edition 07 2011 a Fuel Rail Check the Fuel Pres sure Sensor G247 Re fer to Check the Fuel Pressure Sensor G247 Re fer to gt 3 5 5 Fuel Pressure Sensor page 119 Check the Fuel Pres sure Sensor G247 Re fer to gt 3 5 5 Fuel Pressure Sensor Fuel Rail Pump Con trol Valve Comparing Check the ECM battery voltage inputs The ECM must have voltage input present at the ECM replace the ECM Refer to the Repair Manual 82 Rep Gr ST Generic Scan Tool pressure con trol activity lt 0 14 mPa AND fuel trim activi ty gt 1 5 pressure con trol activity lt 6 00 mPa AND fuel trim activi ty gt 0 9 0 1 15 difference be tween engine off time and ECM after run time lt 12 difference be tween engine off time and ECM after run time gt 12 Sec 5 Sec Continu ous 2 DCY engine speed 600 900 RPM evap purge adap tation lt 20 lambda control closed loop engine load gt 10 30 fuel cut off not ac tive Continu ous 2 DCY lamb
231. t procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Note Voltage is supplied to the Secondary Air Injection SAI Solenoid Valve N112 from the Engine Control Module ECM Power Supply Relay J271 on early models or the Fuel Pump Relay J17 on later models Refer to Wiring Diagrams for circuit pin locations Procedure Disconnect the Secondary Air Injection SAI Solenoid Valve N112 electrical harness connector Checking internal resistance Using a multimeter check the Secondary Air Injection SAI Solenoid Valve N112 terminals 1 to 2 for resistance Specified value 3 5 8 5 Q at approx 20 C If the specified value was Not obtained Replace the Secondary Air Injection SAI Solenoid Valve N1 If the specified value was obtained Checking voltage supply Start the engine Using a multimeter check the Secondary Air Injection SAI Solenoid Valve N112 electrical connector terminal 1 to Ground for voltage Specified value Battery voltage Switch the ignition OFF 3 Diagnosis and Testing 1 79 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 If the specified value was Not obtained Check the wiring from the Secondary Air Injection SAI Sole noid Valve N112 electrical connector terminal 1 to the Secondary Air Injection SAI Pump Relay J299 early mo
232. tage supply was not Replace the Engine Control Module ECM J623 Refer to the Repair Manual Install the engine cover with air filter Refer to the Repair Man ual 3 Diagnosis and Testing 1 83 COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Final procedures After the repair work the following work steps must be performed in the following sequence 1 Check the DTC memory gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code gt 3 2 Readiness Code page 8 3 5 37 Camshaft Position Sensor 3 Checking The following procedure is used to diagnose Camshaft Position CMP Sensor 3 G300 which is controlled by Engine Control Module J623 Note Useionly gold plated when servicing the electrical harnessicon nectorterminals of the Camshaft Position CMP Sensor 3 G300 Special tools and workshop equipment required multimeter Wiring diagram Diode test lamp Test requirements e The Engine Control Module J623 fuses OK e Battery voltage at least 12 5 volts All electrical consumers such as lights and rear window de froster switched off e Vehicles with automatic transmission shift selector lever into position P or N e A C switched off e Ground GND conne
233. talytic Converter page 156 For CBUA Cali ONLY O2 Sensor Check the Signal Oxygen Sen Stuck Rich sor O2S Bank 1 Sen G130 Refer sor 2 to gt 3 5 22 Oxy gen Sensor after Catalytic Converter page 156 94 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 Malfunction Crite Secondary Pa rameters with En able Conditions ria and Threshold Value e Signal current 60 to 2 40 A O2S signal rear not oscillating at reference lt lt 0 649d en richment after stuck lean 20 enrichment af ter stuck lean 1 O2S signal rear not oscillating at reference gt 0649 mV and enrichment af ter stuck rich 15 enrichment af ter stuck rich 1 response time check response time gt 2 5 Sec Pump relay commanded Monitoring Frequency of Time checks MIL Length Illum ON 0 5 Sec 2DCY Engine speed gt 80 RPM Mass air flow gt e Continu 30 kg h ous Modeled ex e 2DCY haust gas temp gt 700 C O2S rear read iness gt 10 Sec 2nd lambda control closed loop 100 Sec Continu ous 2 DCY Mass air flow 22 to 120 kg h Modeled ex haust gas temp gt 300 C O2S rear read iness gt 10 Sec 2nd lambda control closed loop mass air flow gt 10 kg h O2S rear no DTC O2S rear sen sor voltage gt 0 57 V fuel cut off ac tive TT RS 2012 gt GOD Generic Scan Tool Edition 07 2011 Auer DT
234. tch the ignition OFF 3 Diagnosis and Testing 1 TT COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 If the specified value was Not obtained Check the circuit from the Secondary Air Injection SAI Pump Relay J299 socket 2 relay terminal 87 through fuse 27 for 2009 2010 or fuse 21 for 2011 gt in Fuse Box B out to the Secondary Air Injection SAI Pump Motor V101 connector terminal 2 for an open circuit or a short circuit to Ground Refer to Wiring Diagrams for pin locations Check the wiring for an open circuit high resistance or a short to Battery or Ground Check the electrical connections for damage corrosion loose or broken terminals f necessary repair the faulty wiring connection and replace fuse if blown If the specified value was obtained Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Secondary Air Injection SAI Pump Relay J299 socket 4 relay terminal 85 to the Engine Control Module ECM J623 electrical harness connector T94 for resistance Refer to Wiring Diagrams for pin locations Secondary Air Injection SAI Engine Control Module ECM Pump Relay J299 socket J623 electrical connector T94 terminal terminal or test box socket 4185 Specified value 1 5 Q Max If the specified value was Not obtained Check the wiring for an open circuit a sho
235. tected again by the end of the fol lowing driving cycle the corresponding pending code will be deleted at the end of the driving cycle a Note Depending on scan tool and protocol used some of the informa tion provided may be referred to by a different name Procedure Connect the scan tool Start the engine and run at idle a Note If the engine does not start crank the engine using starter for at least 5 seconds Do not switch the ignition off afterward Select Mode 7 Check test results of components that are continuously monitored The number of pending DTCs or 0 malfunctions detected will be displayed on the scan tool screen Refer to the DTC tables for the diagnostic repair procedures Switch the ignition OFF 3 3 8 Diagnostic Mode 08 Request Control of On Board System Test or Compo nent Not supported on this vehicle 3 3 9 Diagnostic Mode 09 Read Vehicle In formation Diagnostic Mode 09 makes it possible to access vehicle specific information from the ECM and the TCM where applicable a Note Depending on scan tool and protocol used Diagnostic Mode 09 and the information provided may be referred to by a different name Test requirement e No internal ECM related DTC s stored in memory Procedure Connect the scan tool Switch the ignition on Select Mode 09 Vehicle information 3 Diagnosis and Testing 25 COLD TT RS 2012 gt Au Generic Scan
236. the readiness code If the specified value was Not obtained Remove the retaining screws and the cover Checking primary voltage Disconnect the Oxygen Sensor O2S Behind Three Way Cat alytic Converter TWC G130 electrical harness connector Switch the ignition ON Using a multimeter check th Oxygerr Sensor 0287 Behind Three Way Catalytic Converter TWC G130 electrical har ness connector terminals 3 to 4 for voltage Specified value 0 400 to 0 500 Volts Switch the ignition OFF If the specified value was obtained Replace the Oxygen Sensor a Behind Three Way Cata lytic Converter TWC G130 1 56 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 Auer If the specified value was Not obtained Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the Repair Manual Using a multimeter check the Oxygen Sensor O2S Behind Three Way Catalytic Converter TWC G130 electrical har ness connector terminals to the Engine Control Module ECM J623 electrical harness connector T94 terminals for resist ance Refer to Wiring Diagrams for pin locations 2009 2010 Models Oxygen Sensor O2S Engine Control Module ECM J623 Behind Three Way Cat electrical conne
237. the specified value was Not obtained Replace the Evaporative Emission EVAP Canister Purge Regulator Valve 1 N80 If the specification is obtained Checking voltage supply Using a multimeter check the purge valve electrical harness connector terminal 1 to 2 for voltage Turn ignition switch ON Specified value 8 60 volts 2 volts Turn the ignition switch OFF If the specified value was Not obtained Leave the multimeter positive lead on terminal 1 and connect the multimeter negative lead to engine ground Ignition switch ON Specified value Near battery voltage Turn the ignition switch OFF If the specified value was Not obtained Check the circuit from the Fuel Pump relay J17 to EVAP sol enoid terminal 1for open or high resistance Refer to Wiring Diagrams for circuit Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the wiring connection If the specified value was obtained Check Ground activation Remove the Engine Control Module ECM J623 Refer to the Repair Manual 3 Diagnosis and Testing 1 25 COED TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Using a multimeter check the Evaporative Emission EVAP Canister Purge Regulator Valve 1 N80 electrical connector terminal 2 to Engine Control Module ECM J623 electrical connector T94 terminal 9 for an open circuit Refer to
238. the wiring for an open circuit or high resistance Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the ground circuit Replace the Engine Control Module ECM J623 Refer to the Repair Manual Testing if display approx 140 0 C Disconnect the Engine Coolant Temperature ECT Sensor G62 or G83 electrical harness connector Turn the ignition switch ON If indication jumps to approx 40 0 C Switch ignition OFF Replace the Engine Coolant Temperature ECT Sensor G62 or G83 If indication remains at approx 140 0 C Checking wiring Remove the Engine Control Module ECM J623 Refer to the Repair Manual Disconnect the ECT harness connector at the sensor Using a multimeter check the signal circuit of the Engine Coolant Temperature ECT Sensor G62 or G83 electrical harness connector terminal 1 to engine ground Refer to Wir ing Diagrams for pin locations Specified value OL or no continuity If the specified value was Not obtained Check the wiring for a short circuit to Ground Check the electrical harness connector for damage corrosion loose or broken terminals If necessary repair the faulty wiring connection If no malfunction is detected in the wiring Replace the Engine Control Module ECM J623 Refer to
239. tic Converter Heater Checking page 158 P0070 Ambient Air Check the open circuit Tempera Ambient Air Ambient air ture Temperature temp lt 40 5 C Sensor G17 Refer to 2 0 20 AM aon Aie bean perature Sen sor Check ing Heater Comman 0 5 Sec 2 DCY ded ON Time after engine start gt 5 Sec Seay speed gt 80 RP Heater comman 0 5 Sec 2 DCY ded OFF a he speed gt 80 RP Heater Comman 0 5 Sec 2 DCY ded OFF ame speed gt 80 Heater Comman 0 5 Sec 2 DCY ded ON sage speed gt 80 RP CAN active 3 Diagnosis and Testing aa eee St 1 COLD TT RS 2012 gt Generic Scan Tool Edition 07 2011 Auol DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ditions Length MIL Illum P0071 Ambient Air Tempera ture Sensor P0072 Ambient Air Tempera turecSensor Gircait Low P0087 Fuel Rail Check the Ambient Air Temperature Sensor G17 Refer to gt 3 5 25 Am bient Air Tem perature Sen sor Check ing page 164 Check the Ambient Air Temperature Sensor G17 Refer to gt 3 5 25 Am bient Air Tem perature Sen S Check the Fuel Pressure Sensor G247 Refer to gt 3 5 5 Fuel Pressure Sen sor Check Ing 32 Rep Gr ST Generic Scan Tool ambient tem peratu
240. tion Pump current during ECT at start lt 60 LDP reference C i V144 Refer measurement AAT gt 4 and lt 35 to gt 1mA C cuit Inter gt mittent Er 3 5 13 Leak Drop of EVAP altitude lt 2700 m ratic Detection a Ji Pump ime since engine Checking er mA start gt 600 Sec On gt 3 Sec page 136 Integrated EVAP purge flow since last purge stop gt 2 g Integrated EVAP purge flow since last monitoring run gt 0 g Intake manifold vacuum gt 100 hPa Vehicle speed lt 120 km h Fuel volume flow lt 5 ml s Change in battery voltage during monitoring lt 1 50 V Engine speed not at idle and above 20 RPM O2S front ready P2414 O2 Sensor Check the Signal Voltage desired Lambda 10Sec 2DCY Heated Oxy 2 5 to 3 06 V value lt 1 6 gen Sensor ror Bank 1 HO2Ss Fuel cut off Not Sensor 1 G39 Refer active 2 Heater control 3 5 20 Heat SRS 100p ed Oxygen engine speed gt 25 Sensor rpm Checking page 152 O2S no DTC O2S ceramic temp gt 715 C low fuel signal on than wait gt 600 s 1 04 Rep Gr ST Generic Scan Tool Generic Scan Tool TT RS 2012 gt COD Edition 07 2011 Auol DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum __ Illum P2431 Secondary Air Injection System Air Flow
241. tional Information P0133 oe sensor sone dynamic 1 999 Refer to DTC P0133 in Bank 1 Sensor 1 the DTC oy table gt page 40 3 Diagnosis and Testing 1 T COLD TT RS 2012 gt Au Generic Scan Tool Edition 07 2011 Test ID Component or System Min Max Additional Information 84 P2195 O2 sensor front rear rationality 0 065 0 065 Refer to DTC P2195 in Bank 1 Sensor 1 the DTC summary table gt page 92 Ifany of components or systems fail to meet the specified val ues Refer to Diagnostic Mode 03 Interrogating Fault Mem ory to check for stored DTC s or the corresponding diagnostic repair procedure gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 Switch the ignition OFF Monitor ID 02 02 Oxygen Sensor Monitor Bank 1 Sensor 2 Connect the scan tool Start the engine and run at idle Select Mode 6 Check test the results of components that are not continuously monitored Select Monitor ID 02 02 Select the desired Test ID or Hex ID Check specified values at idle Test ID Component or System Min Max Additional Information 01 01 no DTC oxygen sensor behind conver 7995 mV tor bank 1 02 02 no DTC oxygen sensor behind conver 7995 mV tor bank 1 05 05 no DTC Dynamic examination LSF be 65535 ms hind Kat bank 1 bank 3 07 07 no DTC Dynamic examination LSF be 65535 ms hind Kat bank 1 bank 3
242. tor T60 terminal terminal or test box socket 20 Ci es Ci Specified value 1 5 Q Max a 2 If the specification was not obtained Check the wiring for an open circuit a short circuit to each other Battery or Ground GND If necessary repair the faulty wiring connection If no malfunction is detected in the wiring Erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 Perform a road test to verify repair If the DTC does not return Repair complete Generate readiness code Refer to gt 3 2 Readiness Code page 8 End diagnosis If the DTC returns and no malfunction is found in the wiring and voltage supply was OK Remove the Engine Control Module ECM J623 Refer to appropriate service manual Assembly is performed in the reversecorder of thecremoval note the following Final procedures After repair work the following work steps must be performed in the following sequence 1 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 2 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 3 Ifthe DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 7 EVAP System Checking for Leaks Observe all safety precautions gt 1 1 Safety Precautions page 2
243. ttle valve position abso lute e Idle stop 3 0 to 25 0 Slowly depress the accelerator pedal to Wide Open Throttle WOT stop while observing the percentage display The per centage display must increase uniformly Using the scan tool check the throttle valve position absolute at Wide Open Throttle WOT stop Diagnostic text Specified value Throttle valve position abso lute e Wide Open Throttle WOT 84 0 to 97 0 stop Switch ignition OFF If the specified values are not obtained Remove the Throttle Valve Control Module J338 far enough so that the electrical connector terminals are reached Disconnectthe Throttle Valve Control Module J338 electrical harness connector Checking resistance Using a multimeter check the Throttle Drive for Electronic Power Control EPC G186 at the Throttle Valve Control Module J338 terminals 3 to 5 for resistance 1 50 Rep Gr ST Generic Scan Tool Generic Scan Tool Edition 07 2011 Auer Specified value 3 0 to 7 0 Q at 20 C If the specified value was Not obtained Replace the Throttle Valve Control Module J338 Refer to the Repair Manual If the specified value was obtained Check the voltage supply of the Throttle Valve Control Module J338 from the Engine Control Module ECM J623 as in structed below Checking voltage supply and wiring Switch the ignition ON Using a multimeter check the
244. uel Trim for out of range low Thresh condition If LT Fuel Trim is out of range correct the condition be fore r eplacing the catalytic converter Check the Oxygen Sen sor O2S Behind Three Way Catalytic Converter TWC G130 fer to Re gt 3 5 22 Oxy gen Sensor after Catalyt ic Converter page 156 Check the Three Way Catalytic Converter TWC Re fer to 3 5 30 Cata lytic Convert er Check 66 Rep Gr ST Generic Scan Tool Oxygen stor age capacity OSC vs OSC value of bor derline catalyst lt 0 2 ambient a ture gt 10 C Engine speed 1200 3000 RPM catalyst tempera ture 525 00 C mas airflow 30 100 kg h delta mass air flow lt 20 kg h s delta catalyst tem perature lt 20 K s TT RS 2012 gt CGD Edition 07 2011 Auer Generic Scan Tool DTC Error Mes Diagnostic Pro Malfunction Crite Secondary Parame Monitor Frequency sage cedure ria and Threshold ters with Enable Con ing Time of checks Value ue ditions Length MIL Illum __ Illum BE Evaporative For Model Year Model Year e Emission 2011 gt Check the Leak Detec ence Orifice Low Flow gt 3 5 13 Leak Detection Pump page 136 EVAP pump current during reference measurement gt 40 mA ECT gt 60 C 3 Sec 2 DCY ECT at start lt 60 C AAT gt 4 and lt 35 C Altitude lt 2700 m Time since engi
245. ump Short to ground ca Fuel Pump Short to B Check the the Camshaft Ad justment Valve 1 ex haust N318 to Refer p 3 5 39 Cam shaft Adjust ment Valve 1 Exhaust page 188 Check the Camshaft Po sition CMP Sensor G40 Refer to 3 5 36 Cam shaft Position Sensor page 182 Check the Camshaft Po sition CMP Sensor 3 G300 Refer to iNo Gamr shaftPosition S nsor3 page 184 e adjustment an gle difference gt 3 CA adaptive vs target values gt 20 CA adaptive vs target values gt 20 CA Check the fuel Signal voltage gt pump Refer to gt 3 5 4 Fuel Pump Electri cal Testing page 116 4 40 5 60 V Check the fuel Signal voltage lt pump Refer to gt 3 5 4 Fuel Pump Electri cal Testing page 116 2 15 3 25 V Check the fuel Signal current gt pump Refer to gt 3 5 4 Fuel Pump Electri cal Testing page 116 Continu ous 2 DCY Engine speed gt 550 RPM ECT gt 7 5 C Time after engine start gt 3 5 Sec number of checks normal operation 3 time length for more than 1 5 Sec multiple 2 DCY Continu ous 2 DCY Continu ous 2 DCY Engine speed gt 80 RPM Continu ous 2 DCY Engine speed gt 80 RPM 3 Diagnosis and Testing 29 COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 DTC Error Mes Diagno
246. voltage displayed on multimeter during crank Voltage should be within 2 5 volts of battery volt age If voltage is below specification replace the Fuel Pump Con trol Module J538 If voltage is within specification replace the Fuel Pump G6 Refer to appropriate service manual Final procedures After the repair work the following work steps must be performed in the following sequence 1 2 3 Check the DTC memory Refer to gt 3 3 3 Diagnostic Mode 03 Read DTC Memory page 14 If necessary erase the DTC memory Refer to gt 3 3 4 Diagnostic Mode 04 Erase DTC Memory page 15 If the DTC memory was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 1 1 8 Rep Gr ST Generic Scan Tool N20 0617 TT RS 2012 gt COD Generic Scan Tool Edition 07 2011 Auer 3 5 5 Fuel Pressure Sensor Checking Observe all safety precautions gt 1 1 Safety Precautions page 2 View clean working conditions gt 1 2 Clean Working Conditions page 3 Use only gold plated terminals when servicing any component with gold plated electrical harness connector terminals For wiring diagrams component locations and connector views Refer to the applicable wiring diagram Special tools and workshop equipment required multimeter Wiring diagram Test requirements The Fuel Pump FP Control Module J538 OK
247. was erased generate readiness code Refer to gt 3 2 Readiness Code page 8 3 5 4 Fuel Pump Electrical Testing Special tools and workshop equipment required multimeter Electrical connector test lead set 1 1 6 Rep Gr ST Generic Scan Tool TT RS 2012 gt CGD Generic Scan Tool Edition 07 2011 Auer Test conditions e Battery voltage 12 5 V e Fuse 27 in Fuse Panel C is OK e Fuel filter OK e Ignition switched off Test procedure Performa preliminary check to verify the customers complaint Refer to gt 3 1 Preliminary Check page 8 Start diagnosis Remove rear seat bench Refer to appropriate service manual Remove the Fuel Pump Control Module from the retaining clips on the floor sealing cover Disconnect the electrical harness connector arrow from the Fuel Pump Control Module Connect the multimeter ground lead to terminal 6 of the Fuel Pump Control Module harness connector IL J 303 N j a N N N e E ETER EEIEIE cea ch3 N97 10175 OT M20 0321 N20 0616 3 Diagnosis and Testing 1 1 T COLD TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Connect the multimeter positive lead to terminal 1 of the Fuel Pump Control Module harness connector Turn the Ignition key to the ON position The meter should read within 1 V of battery voltage If voltage i
248. y repair the wiring connection If no malfunctions are found in the wiring Checking wiring If the manufacturers test box is being used perform the following step Install the test box If the manufacturers test box is not being used perform the fol lowing step Remove the Engine Control Module ECM J623 Refer to the appropriate service manual 3 Diagnosis and Testing 1 27 CAU TT RS 2012 gt Aue Generic Scan Tool Edition 07 2011 Using a multimeter check the Exhaust Flap Valve 1 N321 electrical harness connector terminal 2 to Engine Control Mod ule ECM J623 electrical harness connector T94 terminal 28 for an open circuit Exhaust Flap Valve 1 N321 Engine Control Module ECM electrical harness connector J623 electrical connector T94 terminal terminal or test box socket Specified value 1 5 Q max If the specification is not obtained Check the wiring for a short circuit to each other Battery and Ground GND Check the electrical harness connector for damage corrosion loose or broken terminals f necessary repair the faulty wiring connection If no malfunction is detected in the wiring and if the voltage supply was OK Replace the Engine Control Module ECM J623 Refer to the appropriate service manual Install the engine cover with air filter Refer to the appropriate service manual Final procedures After the repair work the

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