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B8-1

1. W21E5145S10 2 Checking points 1 Injector control signal output from the EFI ECU 2 Injector connector voltage 3 Harness and connectors linking injector and the EFI ECU 4 Injector spray B8 119 3 Check procedure GI Checking the injector operation 1 Use a sound scope or a long screw driver to check if the injector s operating sound is generated SPECIFIED VALUE The operating sound is emitted V If itis OK go to 2 V If itis NG go to gt 4 gt gt 2 Fuel pressure checking 1 Carry out the fuel pressure checking Refer to Page B8 127 SPECIFIED VALUE Fuel pressure inspection shows normal V If itis OK go to 3 V If faulty perform inspection of fuel pump system Refer to Page B8 127 gt gt 3 Carry out the single unit checking of the injector 1 1 Carry out the single unit checking of the injector Refer to Page B8 133 SPECIFIED VALUE The injector is normal V If the result is OK the injection system is normal V If the result is NG replace the injector Refer to Page B7 9 D4 Checking of the injector voltage 1 The ignition switch set to LOCK 2 Disconnect all connectors at the injector side 3 Measure the voltage between each of the terminals with the ignition switch set to ON 1 Between each injector connected vehicle harness side connector 2
2. P21E6709S30 Part name Fuel pump Engine control computer Relay block Cam angle sensor Injector Qao Joo Knock sensor Front oxygen sensor 3 Q Engine coolant temperature sensor ISC stepper motor Throttle position sensor ek Manifold absolute pressure sensor Ignition coil Oil control valve Engine speed sensor VSV control for evaporative purge DLC Intake air temperature sensor Combination meter aloo Rear oxygen sensor Rear oxygen sensor equipped vehicles B8 22 13 6 HOW TO PROCEED WITH TROUBLE SHOOTING 13 6 1 DESCRIPTION 1 The engine control system is equipped with diagnosis functions that are capable of diagnosing mal functioning sections These functions give important clues in troubleshooting 2 The diagnosis function of this system is equipped with the battery backup which keeps supplying the power for diagnosis memory even when the IG switch is set to the LOCK position 13 6 2 TROUBLE DIAGNOSIS PROCEDURE gt gt 1 Bringing in of malfunctioning vehicle V Goto 2 gt gt 2 Inquiry with the customer 1 Inquire the customer to obtain full information on the condition regarding how the failure occurred the environment and the problem V Goto D3 D3 Confirmation and recording of the condition of the engine check lamp 1 Confir
3. 62 VC 131 E2 When the ignition switch is set to ON 4 75 to 5 25V Throttle position sensor When the throttle valve is fully closed 0 4 to 0 8V 99 VTH 131 E2 When the throttle valve is fully open 3 2 to 5 0V S S Coolant temperature 98 THW 131 E2 When warm 60 to 120 C coolant tem 0 3 to EN sensor perature make San 65 THA 131 E2 When warm 0 5 to 4 3V Knock sensor 132 KNK 131 E2 When the engine is idling and when rac ing the engine Pulse generated Engine speed sensor 63 N1 100 N1 When the engine is idling Pulse generated Camshaft position sen sor 97 N2 129 N2 When the engine is idling Pulse generated Front oxygen sensor 22 OX1 131 E2 After maintaining the en gine speed at 3000 rpm for 4 minutes Changes between 0 2 to 1 0V Front oxygen sensor heater 60 OXH1 131 E2 When the engine is idling 3 0 or less When the ignition switch is set to ON Battery voltage Rear oxygen sensor 51 OX3 131 E2 After maintaining the en gine speed at 3000 rpm for 4 minutes Changes between 0 2 to 1 0V Injector system Ignition system SE ee eee mat pt e EE um mm TEE Sey tae ee EE Es When the ignition switch is set to ON Oto 0 11V Seen When the engine is idling Pulse generated When the ign
4. gt gt 2 Checking the EFI ECU output signal 1 Connect the SST to the vehicle SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST69 IG1 and SST130 E1 2 Between SST106 IG2 and SST130 E1 3 Between SST135 IG3 and SST130 E1 4 Between SST68 IG4 and SST130 E1 Time axis 100ms DIV Voltage axis 2V DIV Condition The air conditioner is turned OFF no electric load applied when the engine is idling The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example to the right e The ignition signal cannot be checked correctly without using an oscilloscope SPECIFIED VALUE Waveform cycle shortens as en gine RPMs increase in response to 0 5V pulse v If itis OK go to 3 V If the result is NG check the EFI ECU circuit Refer to Page A1 32 gt gt 3 Checking the ignition coil voltage 1 Measure the voltage between the following connectors while the ignition switch is On 1 Between each ignition coil connected vehicle harness side connector 1 B and the body earth SPECIFIED VALUE Battery voltage T11E6248T10 V If itis OK go to 4 v If faulty repair or replace as necessary the harnesses and connectors linking t
5. T11E6516ES20 Immobilizer ECU vehicle harness connector SIO2 T11E6529S10 EFI ECU vehicle harness connector W21E5145S10 2 Output conditions 1 When the engine is started and the rolling codes do not match 3 Checking point 1 Is the harness between the immobilizer ECU and EFI ECU normal B8 105 4 Checking procedure GI Checking the wire harness 1 Connect the SST Be sure to disconnect the SST connector at the EFl ECU end SST 09842 97201 000 2 Disconnect the immobilizer ECU connector 3 With the ignition switch set to LOCK 1 Between immobilizer ECU vehicle harness connector 8 SIO2 and SST117 S102 SPECIFIED VALUE Continuity exists v If OK proceed to step 2 v If NG repair or replace the harnesses and connectors gt gt 2 Checking the immobilizer system 1 1 Connect the immobilizer ECU connector 2 Replace the EFI ECU with a new one Connect the SST connector to the EFI ECU 3 Start the engine with the master key SPECIFIED VALUE The engine starts Y If OK check or replace the EFI ECU v If NG proceed to step 3 L Checking the immobilizer system 2 1 With the ignition switch set to LOCK 2 Start the engine with the master key SPECIFIED VALUE The engine starts V If O
6. 53 Se 9 54 FAN1 Radiator fan relay drive 10 55 STA _ Starter signal 11 DEF defo gger signal 56 e 12 57 13 W Engine check lamp 58 14 59 15 60 OXH1 Front oxygen sensor heater 16 ATNE 61 PRG Evaporative purge VSV 17 62 VC Sensor power supply 18 40 Injector 4 63 N1 Engine speed sensor 19 ocv loil control valve drive 64 E2PM Sensor earth Exclusively used for mani fold pressure sensor 20 OCV Oil control valve drive 65 THA _ Intake air temperature sensor 21 OX1 1 Rear oxygen sensor 66 IACALO ISC stepper motor 1 22 OX1 Front oxygen sensor 67 IACAHI ISC stepper motor 2 23 E01 Power ground 68 IG4 Ignition coil 4 24 30 Injector 3 69 IG1 Ignition coil 1 25 20 Injector 2 78 VF DLC VF terminal 26 10 Injector 1 79 27 B1 EFI ECU power supply 80 38 BAT Backup power supply 81 AIT Park neutral position switch signal 39 82 40 83 41 HI Tail lamp signal 84 42 BLW Heater blower signal 85 43 STP Stop lamp signal 86 44 FPOF Airbag fuel pump OFF request shignal 87 45 ACEV Air conditioner evaporator temperature 88 _ sensor 46 89 47 FC3 Fuel pump relay drive 90 48 91 49 92 50 FC1 Fuel pump relay drive 93 ACSW Air conditioner switch 51 94 MGC Magnetic clutch relay drive 52 95 Rear oxygen sensor equipped vehicles Immobi
7. V If the malfunction phenomenon could be reproduced go to Y8 V If the most function phenomenon could not be reproduced go to 9 gt gt 8 Reconfirmation of the diagnosis code 1 Reconfirm the diagnosis code V If an abnormal code is output go to 10 V If a normal code is output go to 9 gt gt 9 Basic check 1 Perform basic checks Refer to Page B8 34 V Goto 11 10 Troubleshooting according to diagnosis codes 1 Carry out troubleshooting concerning the diagnosis code being output Refer to Page B8 41 V After the repair work is completed go to gt 12 gt 11 Troubleshooting according to malfunction phenomena 1 Presume the cause of the malfunction phenomenon and carry out the troubleshooting accordingly Refer to Page B8 36 V After the repair is completed go to 12 gt gt 12 Erasing the diagnosis code 1 Erase the diagnosis code V Go to 4138 gt gt 13 Confirmation and recording of the diagnosis code 1 Confirm and record the diagnosis code V f anormal code is output go to 14 V If an abnormal code is output go back oh and carry out checking again B8 24 gt 14 Confirmation test 1 Confirm if the malfunction phenomenon complained by the customer for a vehicle has been posi tively solved and if the vehicle has returned to the normal condition V If OK terminate the work operation v If NG go back to 3 and carry out checking once again 13 6 3 CONNECTING PROCEDURE FOR
8. 2 Output conditions 1 When signals from the rear oxygen sensor never produce a rich mixture when the engine speed is 2000 rom or more and the power increase compensation continues at a value higher than the speci fied value after warming the engine up 3 Checking points 1 Is the signal from the rear oxygen sensor input into the EFI ECU 2 Is the harness between the rear oxygen sensor and EFI ECU normal 3 Is the output of the rear oxygen sensor correct 4 Checking procedure B8 66 D1 Data monitor 1 Race the engine for 5 minutes at 2000 rom or more from when the rear oxygen sensor is cold 2 Use the diagnosis tester to read the Rear oxygen sensor output voltage of the data monitor SPECIFIED VALUE Engine condition Displayed data From cold to warm O to 0 65 or more rich mixture Turn the engine off and set the igni 0 55 or less tion switch to ON Read when the rear oxygen sensor detects oxygen lean mixture V If OK check the EFI ECU circuit and then proceed to step GA Refer to Page A1 32 v If NG proceed to step 2 gt gt 2 Checking the rear oxygen sensor 1 Check the rear oxygen sensor Refer to Page B8 130 V If OK proceed to step 3 v If NG replace the rear oxygen sensor and then proceed to step CA Refer to Page B8 14 L Checking the wire harness 1 Check between the following wire harnesses for an open circuit or a short circuit 1 Between EFI EC
9. 4 In the case of the measurement range and the meas urement condition as shown below the result will be as an example as shown in the diagram Time axis 10ms DIV Voltage axis 2V DIV Condition The air conditioner is turned OFF no elec tric load applied when the engine is idling The condition under which the air conditioner is turned OFF and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF W21E5140T10 NOTE e Unable to identify waveform with the form shown in the figure one example to the right 5 Confirm the following points 1 Regular waveform is emitted 2 The waveform cycle becomes shorter as the engine revolution speed rises 5 Camshaft position sensor 1 Connect SST SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 3 Fully warm up the engine 1 Between SST97 N2 and SST129 N2 B8 142 4 In the case of the measurement range and the meas urement condition as shown below the result will be as an example as shown in the diagram Time axis 50ms DIV Voltage axis 1V DIV Condition The air conditioner is turned OFF no elec tric load applied when the engine is idling The condition under which the air conditioner is turned OFF and the air condit
10. B to the body earth SPECIFIED VALUE Battery voltage V If itis OK go to 5 v If faulty repair or replace as necessary the harnesses and connectors linking the injector to the battery B8 120 gt gt 5 Wire harness check 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 26 10 linking the EFI ECU and the vehicle side har ness connector 1 10 linking ignition coil 1 2 Between vehicle side harness connector 25 20 linking the EFl ECU and the vehicle side har ness connector 2 20 linking ignition coil 1 3 Between vehicle side harness connector 24 30 linking the EFl ECU and the vehicle side har ness connector 3 30 linking ignition coil 1 4 Between vehicle side harness connector 18 40 linking the EFl ECU and the vehicle side har ness connector 4 40 linking ignition coil 1 5 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector SPECIFIED VALUE No abnormality exists v If itis OK go to 6 v If itis NG repair or replace harness and connector at the faulty section D6 Carry out the single unit checking of the injector 2 1 Carry out the single unit checking of the injector Refer to Page B8 133 SPECIFIED VALUE The injector is normal V If it is OK go to 7 V If the result is NG replace the injector Refer to Page B7 11 D7 Checkin
11. SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST61 PRG and SST130 E1 Time axis 20ms DIV Voltage axis 10V DIV Condition After the engine has warmed up engine speed is 2000rpm or higher air conditioner is OFF no electric load The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF T11E6242T10 NOTE e Unable to identify waveform with the form shown in the figure one example e VSV for the evaporator purge will operate only during air to fuel ratio feedback SPECIFIED VALUE 0 battery voltage pulse is output V If itis OK go to 4 V If the result is NG check the EFI ECU circuit Refer to Page A1 32 B8 87 D4 evapo purge 1 Disconnect the evapo purge VSV connector 2 Measure the voltage between the following terminals with the ignition switch set to ON 1 Between vehicle side VSV harness connector B linking the evapo purge and the body ground connector SPECIFIED VALUE Battery voltage Refer to Page J5 1 V If itis OK go to 5 v If faulty repair or replace as necessary the harnesses and connectors linking the evapo purge VSV to the battery D5 Checking the single unit of the VSV for evaporator purge 1 Carry out the single unit checking of the VSV for evaporator p
12. 4 KNOCK SENSOR 4 1 REMOVAL AND INSTALLATION 4 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Remove the intake manifold Ay Refer to Page B3 10 3 Disconnect the connector of the knock control sensor 4 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components B8 4 T 20 0 5 0 204 50 T11E6076S20 Unit N m kgf cm 2 Removal and installation procedures A 1 a Sensor knock control 4 1 3 POINTS OF INSTALLATION 1 Sensor knock control 1 When attaching the sensor to the engine Ay attach it within the range shown in figure A SPECIFIED VALUE A 20 15 degrees 4 1 4 OPERATION AFTER INSTALLATION 1 Connect the connector of the knock control sensor 2 Install the intake manifold Ay Refer to Page B3 10 3 Install the negative terminal of the battery P21E6515ET10 B8 5 5 ENGINE WATER TEMPERATURE SENSOR 5 1 REMOVAL AND INSTALLATION 5 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Drain the cooling water Refer to Page B1 10 3 Remove the engine Ay Refer to Page B2 23 5 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components T 19 63 9 200 40 P21E6511S20 X Non reusable parts Unit N m kgf cm 2 Removal and installation procedures 1 a Sensor water temperature 2 b Gasket 5 1 3 OPERATION AFTER INSTALLATION 1 Install the engine Ay Refer to Page
13. E2 linking the knock sensor 2 Between vehicle side harness connector 132 KNK linking the EFI ECU and the vehicle side harness connector 2 KNK linking the front oxgen sensor 3 Between vehicle side harness connector 130 E1 linking the EFl ECU and the ground connec tor Refer to Page A1 31 SPECIFIED VALUE No abnormality exists v If itis OK go to 3 v If itis NG repair or replace harness and connector at the faulty section B8 75 L Checking the signal unit of the knock sensor 1 Carry out the single unit checking of the knock sensor Refer to Page B8 130 SPECIFIED VALUE The knock sensor is normal V If the result is OK check the connecting state of the connector at each section or the installation condition of the knock sensor V If the result is NG replace knock sensor Refer to Page B8 4 B8 76 13 13 13 P0335 13 ENGINE REVOLUTION SENSOR SIGNAL 1 System diagram EFI ECU Engine revolution sensor 93 n1 009 e f E1 W21E5117ES20 Engine revolution sensor connected vehicle harness side connector Nit N1 NK pe W21E5118S10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 If no revolution speed signal is input while cranking is con
14. PCV valve and hoses are normal v If itis OK go to 3 V If the result is NG repair or replace the malfunctioning section and go to 10 B8 70 D3 Single unit checking of the spark plug 1 Carry out single unit checking of the spark plug Refer to Page B1 1 SPECIFIED VALUE Spark plugs are normal V If it is OK go to 4 V If the result is NG replace the spark plug and go to gt gt 10 Refer to Page B10 2 D4 Injector system checking 1 Check the injector system Refer to Page B8 133 SPECIFIED VALUE Injector system is normal V If itis OK go to 5 V If the result is NG repair the injector system and go to gt gt 10 D5 Fuel pressure checking 1 Carry out the fuel pressure checking Refer to Page B8 127 SPECIFIED VALUE Fuel pressure inspection shows normal V If the result is OK check the EFI ECU circuit and go to 10 Refer to Page A1 32 V If the result is NG check and repair the following section and go to gt 10 1 Fuel pump system 2 Fuel line D6 Front oxygen sensor signal checking 1 Connect the SST SST 09842 97209 000 2 Start the engine and keep it running at 3000 rpm for 4 minutes to activate the front oxygen sensor B8 71 3 Use oscilloscope to monitor waveform output from the following connector 1 Between SST22 OX1 and SST130 E1 Time axis 200ms DIV Voltage axis 500mvV DIV Condition The air conditioner set to OF
15. Refer to Page B8 79 B8 44 13 13 2 P0011 73 VVT CONTROL ADVANCE ANGLE FAULTY P0012 73 VVT CONTROL DELAY ANGLE FAULTY 1 System diagram EFI ECU OCV E D Oil control valve ocv a9 J W21E5104ES20 Oil control valve connected vehicle harness side connector vn H11E6067S10 EFI ECU connected vehicle harness side connector W21E5145S10 B8 45 2 Outline of the variable valve timing control operation Timing advanced Timing retard M Timing advanced signal Duty comparison small Timing advanced signal Duty comparison large Movement of OCV Movement of OCV DVVT controller DVVT controller M31E8311ES15 3 No P0011 73 output condition 1 When advance fail of the variable valve timing has been depicted 4 No P0012 73 output condition 1 When retard fail of the variable valve timing has been depicted 5 Checking points 1 Operation of the variable timing controller 2 Deviation in timing between the cam shaft timing sprocket Ay and the No 1 camshaft timing sprocket matchmark position 3 EFI ECU 6 Checking Method 1 Diagnosis code checking 1 Read out the diagnosis code by using the diagnosis tester SPECIFIED VALUE
16. Start the engine 3 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST132 KNK and SST130 E2 Time axis 50 s DIV Voltage axis 500mV DIV Condition When the air conditioner turned OFF no elec tric load and while idling The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example to the right Time axis 50 s DIV Voltage axis 500mV DIV Condition When the air conditioner turned OFF no elec tric load and while racing The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF N OTE T11E6240T10 e Unable to identify waveform with the form shown in the figure one example to the right SPECIFIED VALUE Waveforms are supplied for the idling time and the racing time re spectively V If the result is OK check the EFI ECU circuit Refer to Page A1 32 V If itis NG go to 2 gt gt 2 Checking the wire harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 131 E2 linking the EFl ECU and the vehicle side har ness connector 1
17. the engine is warmed up in which the engine speed is maintained at 3000 rpm or higher and at the same time the power increase compensation at a value higher than the specified setting continued B8 60 3 Checking Points NOTE e f this code has been output at the same time with another code carry out the checking from the other code first 1 Signal from the front oxgen sensor input to the EFI ECU 2 Harness and connectors linking the front oxgen sensor and the EFI ECU 3 Front oxgen sensor output signal sensor is faulty if it sounds alarm continuously despite no obvious cause of lean A F high oxygen concentration in exhaust gas 4 EFI ECU 4 Check procedure D1 Front oxygen sensor signal checking 1 Connect the SST SST 09842 97209 000 2 Start the engine and keep it running at 3000 rpm for 4 minutes to activate the front oxygen sensor 3 Use oscilloscope to monitor waveform output from the following connector 1 Between SST22 OX1 SST130 E1 Time axis 200ms DIV Voltage axis 500mvV DIV Condition The Air conditioner set to OFF no electric load applied engine speed held at 3000 rpm The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF T11E6241T10 NOTE e Unable to identify waveform with the form shown in the figure one example SPECIFIED VALUE The 0 21V waveform is emitte
18. 1 E2 and 2 THW Temperature C 20 20 80 110 Resistance kQ 14 9675 2 44757 eau 0 1403 0126 NOTE e Figures inside parentheses show reference values T11E6204T10 T11E6206T10 T11E6223T10 W21E5136T10 B8 130 13 15 8 FRONT OXYGEN SENSOR 1 Measure the resistance value between the following ter a minals 1 Between 1 OXH1 and 2 B SPECIFIED VALUE 5 6733Q 20 1 C 2 Confirm that there is no continuity existing between the following terminals 1 Between the front oxygen sensor main unit and 3 OX1 2 Between front oxygen sensor main unit and 4 E2 3 Between front oxygen sensor main unit and 1 OXH1 4 Between front oxygen sensor main unit and 2 B 5 Between 3 OX1 and 1 OXH1 6 Between 3 OX1 and 2 B 7 Between 4 E2 and 1 OXH1 8 Between 4 E2 and 2 B SPECIFIED VALUE No continuity exists NOTE e A part from the above checking of a single unit carry out checking of voltage of the front oxygen sensor un der the condition that the sensor is attached to the ve hicle Refer to the troubleshooting according to diagnosis code P0130 21 P0135 23 Refer to Page B8 59 T11E6209T10 Sg A Z Refer to Page B8 63 13 15 9 REAR OXYGEN SENSOR 1 Check that there is no continuity between the rear oxy gen sensor and each terminal 1 Between the rear oxygen sensor and 1 OX2 2 Between the rear o
19. 3 1 to 4 1 V ambient temperature V If OK check the EFI ECU circuit Refer to Page A1 32 v If NG proceed to step 2 gt gt 2 Checking the wire harness continuity 1 Check the continuity between each of the following terminals 1 Between EFI ECU vehicle harness connector 102 PIM and sensor vehicle harness connector 2 PIM 2 Between EFI ECU vehicle harness connector 64 E2PM and sensor vehicle harness connector 1 E2PM 3 Between EFI ECU vehicle harness connector 101 VCPM and sensor vehicle harness connec tor 3 VCPM SPECIFIED VALUE Continuity exists v If OK proceed to step 3 v If NG repair the harnesses and connectors gt gt 3 Checking the manifold pressure sensor voltage 1 Disconnect the manifold pressure sensor connector 2 Set the ignition switch to ON 1 Between sensor vehicle harness connector 3 VCPM and sensor vehicle harness connector 1 E2PM SPECIFIED VALUE v If OK proceed to step CA v If NG check the EFI ECU circuit Refer to Page A1 32 D4 Checking the manifold pressure sensor 1 Check the manifold pressure sensor Refer to Page B8 128 Y If OK check whether each connector is properly connected v If NG replace the manifold pressure sensor B8 51 13 13 5 P0110 43 INTAKE AIR TEMPERATURE SENSOR 1 System diagram EFI ECU Intake temperature integral sensor THA 65 E2 E P21E6704S20 Intake air temperature sens
20. B2 23 2 Fill cooling water Refer to Page B1 10 3 Connect the negative terminal of the battery 4 Start the engine and perform air bleeding of the cooling water 5 Stop the engine and check for leakage of cooling water B8 6 6 INTAKE AIR TEMPERATURE SENSOR 6 1 REMOVAL AND INSTALLATION 6 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Remove the connectors of the thermo sensor 6 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components P21E6507S20 2 Removal and installation procedures 1 a Sensor thermo 2 b Grommet 6 1 3 OPERATION AFTER INSTALLATION 1 Connect the connectors of the thermo sensor 2 Connect the negative terminal of the battery B8 7 7 MANIFOLD ABSOLUTE PRESSURE SENSOR 7 1 REMOVAL AND INSTALLATION 7 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Remove the connectors of the vacuum sensor 3 Remove the vacuum hose S A from the intake manifold Ay 7 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components P21E6510ES20 2 Removal and installation procedures 1 a Sensor vacuum A 2 b Hose S A vacuum 7 1 3 POINTS OF INSTALLATION 1 Align the edge surface of the clamp with the edge sur face of the protector as shown in the illustration and then connect the vacuum hose S A to the intake mani fold Ay SPECIFIED VALUE A 0 7mm 7 1 4 OPERATION AFTER INSTALLATION
21. DATA 1 Scanning data 1 The following data values are the typical values obtained by using a scanning tool under the normal condition Use these values as your reference Even if the measurement values may differ from those values listed here it is possible that the sys tem may be operating normally Therefore the judgment concerning the system as to whether a malfunction has occurred or not must not be made by only on the basis of these data values under the so called normal condition CAUTION e The data monitor value may vary significantly depending on slight difference in the measurement difference in the measurement environment deterioration due to passage of time in the vehicle and so forth Therefore it is difficult to indicate the definite reference values Hence there are cases where malfunctions are occurring even when the measured value is within the reference value e With regard to minor phenomenon such as hesitation and rough idling it is necessary to make to tal evaluation based on all the data monitor items by sampling the data of the vehicle of the same type under the same conditions and comparing them e To check data when the engine is in the idling or racing condition the shift lever must be put in neutral with the A C switch set to OFF and all accessory switches set to OFF Scanning data Duri The data name SS Abbreviated Explanations of items
22. ECU and the vehicle side harness connector 2 E21 linking the air conditioner evaporator temperature sensor 3 Between vehicle side harness connector 130 E1 linking the EFI ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If it is OK go to 4 v If it is NG repair or replace harness and connector at the faulty section D4 EFI ECU signal checking 2 1 With the air conditioner evaporator temperature sensor connector disconnected turn the ignition switch to ON and measure the voltage between the following terminals 1 Between SST45 ACEV and SST116 E21 SPECIFIED VALUE 4 75 V to 5 25 V V If the result is OK check the connecting status of the connectors at each section or the installa tion condition of the air conditioner evaporator temperature sensor V If the result is NG check the EFI ECU circuit Refer to Page A1 32 B8 102 13 13 22 P0603 83 IMMOBILIZER SYSTEM COMMUNICATION SYSTEM ABNORMAL ECU 1 System diagram EFI ECU sio Di Immobilizer ECU T11E6516ES20 Immobilizer ECU vehicle harness connector SIO2 T11E6529S10 EFI ECU vehicle harness connector W21E5145S10 2 Output conditions 1 When the rolling codes
23. EE SE When the air conditioner is not operating 0 to 0 5V When the steering wheel is steered and the Oto 1V f vehicle is parked P t tch 133 PST to 130 E1 f 7 SE EE ye WER When the steering wheel is not steered and the Battery voltage vehicle is parked When the stop lamp is on Battery voltage Stop lam 43 STP to 130 E1 SP 4 ete E1 When the stop lamp is off 0 to 0 5V Y If the result is OK check the EFI ECU circuit Refer to Page A1 32 V If the result is NG repair or replace the circuit the harness the relay and the switch of the mal functioning section 13 13 20 P0512 54 STARTER SIGNAL SYSTEM 1 System diagram EFI ECU Starter IG switch ST AM2 F L TT 1 I I Battery E E1 sta iH W21E5125ES20 B8 98 IG switch connected vehicle harness side connector W21E5153S10 W21E5145S10 2 Output conditions 1 When engine rom exceeds set value with a vehicle traveling at Okm h and starter output signal is faulty 3 Checking Point 1 Harness and connectors linking starter and the EFI ECU 2 EFl ECU B8 99 4 Check procedure gt gt 1 EFI ECU signal checking 1 Connect the SST SST 09842 97209 000 2 Measure voltage between the following connectors during starting 1 Between
24. Main relay connected fuse block side connector vehicle harness side connector W21E5147ES10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 When it has never been turned ON or OFF by the VSV detection signal for the evaporator purge after the engine is started 3 Checking Points 1 Harness and connectors linking evapo purge VSV and the EFI ECU 2 Evapo purge VSV control signal output from the EFI ECU 3 VSV Operation for the evapo purge 4 EFI ECU B8 86 4 Check procedure D1 Checking of the evaporator purge system hose 1 Check the hose for the evaporator purge system for missing or damages SPECIFIED VALUE No missing or damages existing v If itis OK go to 2 V If the result is NG repair or replace the hose gt 2 Active test 1 Carry out the active test Purge VSV by using the diag From charcoal nosis tester canister SPECIFIED VALUE Ventilation between ports L When it is ON Ventilation existing P When it is OFF No ventilation existing i H tyh To intake ea manifold V If the result is OK go to 7 V If itis NG go to 3 W21E5122ET10 gt gt 3 Checking the EFI ECU output signal 1 Connect the SST to the vehicle
25. OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Disconnect the connector of the crank position sensor Ay 2 1 3 REMOVAL AND INSTALLATION PROCEDURES 1 Components e T 7 5 2 2 76 22 T11E6072S20 Engine oil Unit N m kgf cm 2 Removal and installation procedures A 1 a Sensor Ay crank position 2 1 4 POINTS OF INSTALLATION 1 Sensor Ay crank position 1 Apply engine oil to the O ring of the sensor Ay LUBRICANT Engine oil 2 1 5 OPERATION AFTER INSTALLATION 1 Connect the connector of the crank position sensor Ay 2 Install the negative terminal of the battery B8 3 3 CAMSHAFT POSITION SENSOR 3 1 REMOVAL AND INSTALLATION 3 1 1 ARTICLES TO BE PREPARED Lubricants bonds others Engine oil 3 1 2 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Disconnect the connector of the cam position sensor Ay 3 1 3 REMOVAL AND INSTALLATION PROCEDURES 1 Components T 7 542 2 76422 T11E6074S20 Engine oil Unit N m kgf cm 2 Removal and installation procedures A 1 a Sensor Ay cam position 3 1 4 POINTS OF INSTALLATION 1 Sensor Ay cam position 1 Apply engine oil to the O ring of the sensor Ay LUBRICANT Engine oil 3 1 5 OPERATION AFTER INSTALLATION 1 Connect the connector of the cam position sensor Ay 2 Install the negative terminal of the battery
26. connector of the oxygen sensor 11 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components Za Kl T 34 0 5 0 347 50 SS GP SS H Ee x IK SE GS SE ye 6 Se WE A A VAR Ey ONS Ng P21E6501ES20 Unit N m kgf cm 2 Removal and installation procedures v A 1 a Sensor oxygen front 11 1 3 POINTS OF REMOVAL 1 Sensor oxygen front 1 Remove the sensor using the oxygen sensor socket CAUTION e Use the tool for handling the connector harness to prevent it from being caught 11 1 4 POINTS OF INSTALLATION 1 Sensor oxygen front 1 Tighten the sensor by using the oxygen sensor socket CAUTION e Use the tool for handling the connector harness to prevent it from being caught 2 Attach the connector of the oxygen sensor P21E6503T10 B8 13 11 1 5 OPERATION AFTER INSTALLATION 1 Install the negative terminal of the battery B8 14 12 REAR OXYGEN SENSOR REAR OXYGEN SENSOR EQUIPPED VEHICLES ONLY 12 1 REMOVAL AND INSTALLATION 12 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Lift up the vehicle 3 Disconnect the connector of the oxygen sensor 12 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components T 34 0 5 0 346 50 P21E6504ES20 Unit N m kgf cm 2 Removal and installation procedures v A 1 a Sensor oxygen rear 12 1 3 POINTS OF REMOVAL 1 Sensor oxygen r
27. continuity exists be tween terminals 2 and 4 at the relay side 13 15 18 MAGNET CLATCH RELAY MGC 1 Check if the relay operates when the ignition switch is set to ON by means of sound and vibration WARNING rs e Do not touch the relay with your hand as it may be come hot during operation sch 2 Measure the resistance between the relay side terminals at me 1 and 3 SPECIFIED VALUE 131 to 230 Q at 20 C W21E5139T10 NOTE e Carry out the measurement when the temperature in side the relay reaches the same value as the sur rounding temperature 20 C Carry out the measurement after waiting 1 hour with the relay turned OFF with the temperature main tained at the surrounding temperature of 20 C 3 Confirm that there is no continuity existing between ter minals other than between terminals 1 and 3 at the relay side 4 When the battery voltage is applied to terminals 1 and 3 at the relay side confirm that the continuity exists be tween terminals 2 and 4 at the relay side 13 15 19 STARTER RELAY 1 Check if the relay operates when the ignition switch is set to ON by means of sound and vibration WARNING e Do not touch the relay with your hand as it may be come hot during operation 2 Measure the resistance between the relay side terminals 1 and 3 SPECIFIED VALUE 131 to 230 Q at 20 C NOTE e Carry out the measurement when the temperature in side the relay reache
28. engine check lamp goes off when the engine is started SPECIFIED VALUE The engine check lamp condition a Illuminated extinguished b Remaining being illuminated C Does not go on remaining being distin guished V In the case of a there is no abnormality in the engine check lamp system V In the case of b go to 2 V In the case of c go to 3 3 Diagnosis code checking 1 Read out the diagnosis code by using the diagnosis tester SPECIFIED VALUE a If the diagnosis code is not output but the lamp remains being illuminated b If the diagnosis code is outputted V In the case of a go to D6 V In the case of b check the code that is outputted D3 Checking the EFI ECU power supply voltage 1 Disconnect the connector on the EFI ECU side and measure the voltage between each of the termi nals with the ignition switch set to ON 1 Between the ECU connected vehicle harness side connector 27 B1 and the ECU con nected vehicle harness side connector 130 E1 2 Between the ECU connected vehicle harness side connector 38 BAT and the ECU connected vehicle harness side connector 130 E1 SPECIFIED VALUE Battery voltage v If itis OK go to 4 V If the result is NG check the EFI ECU power supply system Refer to Page B8 109 B8 108 D4 EFI ECU sensor 1 Connect the SST SST 09842 97209 000 2 Measure the voltage between the following conne
29. for displaying erasing the codes and the steps for checking are described together with the descriptions on the method of us ing the diagnosis tester or the OBD II generic scan tool 2 Carryout the troubleshooting by using a diagnosis tester or the OBD II generic scan tool 3 Diagnosis trouble codes are posted as both four digit code and two digit code for example like PO105 31 1 When only the diagnosis tester or the OBD II generic scan tool is to be used only four digit codes are displayed 2 When the scan tool is not to be used two digit code e g 31 will be displayed on the engine check lamp NOTE e The OBD II generic scan tool means a scan tool complying with the ISO 15765 format e When the OBD II generic scan tool is used all malfunction codes 4 digit code cannot be read out In this case only the code which has zero after P For example POXXX can be read out e The accuracy of the two digit codes in diagnosing malfunctioning components is slightly inferior to that of the four digit codes 13 2 2 CAUTION WHEN CARRIED OUT A TROUBLESHOOTING 1 Do not disconnect the connector of EFI ECU the battery cable from the battery the ECU earth wire from the engine or the main fuse before the diagnosis information memorized in the ECU memory is confirmed 2 The diagnosis information memorized in the ECU memory can be erased by using the diagnosis tester or the OBD Il generic scan tool in the same way as for checkin
30. in the figure one example SPECIFIED VALUE Battery voltage pulse of OV oc curs resulting in waveforms being reverse phase between LO and HI V If the result is OK replace the throttle body Ay Refer to Page B3 7 V If the result is NG check the EFI ECU circuit Refer to Page A1 32 T11E6247T10 B8 95 13 13 19 P0505 71 ISC VALVE SYSTEM IDLING UP CONTROL SYSTEM 1 System circuit diagram EFI ECU Radiator fan relay To fuel ENGINE 10A To fuel RAD 30A Stepper motor for ISC IACBLO 03 IACBHI BEW D To air conditioning system each has system refer wiring diagrams for detail 130 E1 ACSW 93 PST 33 Oil pressure switch hydraulic power steering equiped vehicle J Hightmount X stop lamp Stop lamp switch To fuse STOP 15A W21E5124ES20 Each unit connected vehicle harness side connector IACALO IACBLO 12 3 j4 SEA IACAHI IACBHI Radiator fan relay connected Stepper motor for ISC connected relay block side connector harness side connector W21E5148ES10 EFI ECU connected vehicle harness side connector W21E5145S10 2 CHECKING POINTS 1 Harness and connectors linking ISC stepper motor and the EFI ECU 2 ISC stepper motor control signal output from the EFI ECU 3 Harnes
31. may not resume the normal state unless you confirm the malfunctioning phenomenon The inquiry with the customer is a vital information collecting activity which is to be conducted previous to the confirmation of malfunctioning phenomenon 2 The information obtained by the inquiry can be referred to during the troubleshooting Hence it is necessary to focus your questions on the items related to the malfunction 3 The following main points of the inquiry given below are the most important points in analyzing the malfunction In some cases the information about malfunctions that took place in the past and about the history of previous repairs may seem to be not relative to the current malfunction Therefore it is important to obtain as much information as possible and keep them accurately in mind as reference information when troubleshooting the malfunctioning phenomenon B8 26 13 7 2 ENGINE CONTROL SYSTEM INQUIRY SHEET INQUIRY SHEET Inquiry sheet Name of customer Vehicle model Engine N A T C Transmission 4M T 5M T S C carburetor 2WD 4WD 2A T 3A T EFI LPG AAT Frame No Registration date Date of malfunction gt gt Running distance km Equipment Sex of customer driver Age Male Female Approx Occupation Places where vehicle is mainly used Parking place Urban district suburb seacoast mountain others Outdoor indoor e Other e No initial explo
32. opening degree its T11E6212T10 C T11E6213T10 B8 132 13 15 13 AIR CONDITIONER EVAPORATOR TEMPERA TURE SENSOR 1 Measure the resistance between the sensor side con nector terminals 2 Connect the connectors and turned ON the air condi tioner and then wait for 5 minutes NOTE e Air conditioner ON The air conditioner switch ACSW blower switch BLW magnet clutch MGC are all set to ON 3 Turn the air conditioner to OFF and measure the resis tance value of the following terminals NOTE e The condition under which the air conditioner is turned OFF The air conditioner switch ACSW blower switch BLW magnet clutch MGC are all set to OFF 1 Between 1 ACEV and 2 E21 SPECIFIED VALUE The resistance value varies before and after the operation of the air W21E5137T10 conditioner NOTE e The resistance value increases as the temperature goes down e Air conditioner evaporator temperature sensor resis tance characteristics reference values are shown be low Temperature C 0 15 Resistance kQ 4 852 0 062 2 341 0 094 B8 133 13 15 14 INJECTOR WARNING e Never use fire during the work e Be sure to prevent the fuel from splashing by using waste cloths 1 Remove the injector before carrying out the checking CAUTION e Install a substitute injector to prevent foreign matters from entering 2 Remove the fuel hose between the
33. sensor Refer to Page B8 12 gt gt 2 Oxygen sensor voltage checking 1 Disconnect the connector of the front oxygen sensor 2 Set the ignition switch to ON 3 Measure the voltage between the following terminals 1 Between the front oxygen sensor connected vehicle harness side connector 2 B and the body earth SPECIFIED VALUE Battery voltage v If itis OK go to SS V Inspect and repair as necessary the harness and relay between the battery and the front oxygen sensor if sensor is defective gt gt 3 EFI ECU signal checking 1 Connect the connector of the front oxygen sensor 2 Connect SST SST 09842 97209 000 3 Measure the voltage between the following terminals after the engine is started when it is cold 1 Between SST60 OXH1 and SST130 E1 SPECIFIED VALUE Around OV V If normal inspect and repair as necessary the harness between the battery and the front oxygen sensor V If the result is NG check the circuit of EFI ECU Refer to Page A1 32 B8 65 13 13 10 P0136 22 REAR OXYGEN SENSOR SIGNAL 1 System diagram EFI ECU 1 Rear oxygen sensor P21E6705S20 Rear oxygen sensor vehicle harness connector ee 12 09 P21E6706S10 EFI ECU vehicle harness connector W21E5145S10
34. system inspection wire is not to be used carry out the work operation by disconnecting DLC from the bracket After the work operation is completed make sure that DLC is positively fastened to the bracket 3 The engine check lamp within the combination meter will blink and the diagnosis codes will be indi cated BAT EFI T REV EH Engine check lamp EFI T terminal Shorted ooo Shorted Open 0 25sec EFI T terminal Open 0 5sec 1 5sec _ innnan ieee Seba SCT Illuminated Engine check lamp Extinguished Engi heck ingui ngine check lamp Extinguished 0 25sec EH 0 5sec k l Asec Asec Normal time During abnormal period In the case of Code No 21 W21E5154ES20 NOTE e All diagnosis codes that are stored in the memory will be displayed repeatedly in the order starting from the smallest number B8 29 13 9 4 DIAGNOSIS CODE ERASE METHOD ERASURE BY THE DIAGNOSIS TESTER NOTE e After checking and repairing points for which an abnormality code has been emitted erase the code in the ECU memory following the procedure given below e f an abnormally take code cannot be eraced performed checking and repairing of points where the abnormally codes occurred once again e When erasure of abnormality codes is carried out the freeze frame data are also eraced Check in advance if the erasure is permissible 1 Stop the vehicle 2 After setting the ignition switch to LOCK connect the diagnosis t
35. vehicle idle for 1 minute or longer Set the ignition switch to LOCK Carry out the above 2 to 4 once again Confirm that the diagnosis code No P0171 52 or No P172 26 is not output f this test condition cannot be observed faithfully this malfunction cannot be detected SPECIFIED VALUE P0171 25 Fuel system lean faulty or PO172 26 Fuel system rich faulty not output YV If the result is OK terminate the troubleshooting V If the result is NG carry out the troubleshooting from gt gt 1 once again B8 73 13 13 12 P0325 18B VIBRATING TYPE KNOCK SENSOR SIGNAL 1 System diagram TO p L Knock sensor gt 3 Ei E2 63 lj EFI ECU W21E5115ES20 Knock sensor connected vehicle harness side connector WE EFI ECU connected vehicle harness side connector W21E5116S10 W21E5145S10 2 Output conditions 1 When the signals from the knock sensor are not outputted continuously for a certain length of time after starting the engine 3 Check point 1 Signal from knock sensor input to the EFI ECU 2 Harness and connectors linking the knock sensor to the EFI ECU 3 Knock sensor output signal 4 EFI ECU B8 74 4 Check procedure gt 1 Checking the EFI ECU signal 1 Connect the SST SST 09842 97209 000 2
36. 1 Connect the connectors of the vacuum sensor 2 Connect the negative terminal of the battery Hose S A vacuum K a 4 L Manifold Ay intake P21E6514ET10 B8 8 8 OIL CONTROL VALVE 8 1 REMOVAL AND INSTALLATION 8 1 1 ARTICLES TO BE PREPARED Lubricant adhesive others Engine oil 8 1 2 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Remove the connectors of the cam timing oil control valve Ay 8 1 3 REMOVAL AND INSTALLATION PROCEDURES 1 Components T 7 542 3 76422 T11E6082S20 Engine oil Unit N m kgf cm 2 RemovalRemoval and installation procedures A 1 a Valve Ay cam timing oil control 8 1 4 POINTS OF INSTALLATION 1 Valve Ay cam timing oil control 1 Apply engine oil to the O ring of the valve Ay LUBRICANT Engine oil 8 1 5 OPERATION AFTER INSTALLATION 1 Connect the connectors of the cam timing oil control valve Ay 2 Connect the negative terminal of the battery B8 9 9 THROTTLE POSITION SENSOR 9 1 REMOVAL AND INSTALLATION 9 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Remove the air cleaner case Refer to Page B3 1 3 Disconnect the connectors of the throttle position sensors 9 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components T 1 75 0 25 17 8 2 5 P21E6512ES20 Unit N m kgf cm 2 Removal
37. 1 front oxygen sensor signal system is not output V If the result is OK terminate the troubleshooting V If the result is NG carry out the troubleshooting from gt 1 once again B8 63 13 13 9 P0135 23 FRONT OXYGEN SENSOR HEATER SIGNAL 1 System diagram EFI ECU OXH1 6 OX1 2 ENGINE IG switch IG2 Front oxygen sensor Fuse AM2 30A Main relay W21E5112ES20 Front oxygen sensor connected vehicle harness side connector OXH1 SS Z Lee 12 oe Joo O M24E6054S10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 When front oxygen sensor heater system has a breaking of wire or a short circuiting 3 Checking Points 1 Heater signal input to the EFl ECU from the front oxgen sensor 2 Harness and connectors linking the front oxgen sensor to the EFI ECU 3 Disconnected lines or short circuits in the front oxgen sensor heater system 4 EFI ECU 4 Check procedure B8 64 gt 1 Checking the single unit of the oxygen sensor 1 Carry out the single unit checking of the front oxygen sensor Refer to Page B8 130 SPECIFIED VALUE The front oxygen sensor is normal V If itis OK go to 2 V If the result is NG replace the malfunctioning oxygen
38. 10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 When the signal from the camshaft position sensor is not outputted consecutively for a certain length of time after the engine is started 3 Checking Points 1 Signal from camshaft position sensor input to the EFI ECU 2 Harnesses and connectors linking the camshaft position sensor to the EFI ECU 3 Output signal from the camshaft position sensor 4 EFl ECU B8 80 4 Check procedure D1 Checking the EFI ECU output signal 1 Connect the SST SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST97 N2 and SST129 N2 Time axis 50ms DIV Voltage axis 1V DIV Condition The air conditioner is turned OFF no electric load applied when the engine is idling The condition under which the air conditioner is turned OFF and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE T11E6237T10 e Unable to identify waveform with the form shown in the figure one example to the right SPECIFIED VALUE Waveform cycle shortens as en gine RPMs increase when regular waveform is emitted V If the result is OK it is possible that the system has re turned to
39. 7209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST26 10 and SST130 E1 2 Between SST25 20 and SST130 E1 3 Between SST24 30 and SST130 E1 4 Between SST18 40 and SST130 E1 Time axis 2ms DIV Voltage axis 10V DIV Condition The air conditioner is turned OFF no electric load applied when the engine is idling The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example 3 Confirm the following points 1 The voltage changes from the battery voltage to 0 V during fuel injection time 2 Oil control valve 1 Connect the SST SST 09842 97209 000 T11E6243T10 2 Completely warm up the engine 3 Use an oscilloscope to measure the waveform emitted from the following connector 1 SST20 OCV and SST19 OCV 4 In the case of measuring range and the measuring con dition as an example the oscilloscope waveform will be as in the right diagram Time axis ims DIV Voltage axis DN DIV Condition The air conditioner is turned OFF no elec tric load applied when the engine is idling The condition under which the air conditioner is turned OFF and the air conditioner switch ASCW blower swit
40. B8 ENGINE CONTROL SYSTEM ee B8 1 ENGINE CONTROL COMPUTER B8 1 REMOVAL AND INSTALLATION B8 1 ENGINE REVOLUTION SENSOR B8 2 REMOVAL AND INSTALLATION B8 2 CAMSHAFT POSITION SENSOR B8 3 REMOVAL AND INSTALLATION B8 3 KNOCK SENSOR B8 4 REMOVAL AND INSTALLATION B8 4 ENGINE WATER TEMPERATURE SEN SOR E B8 5 REMOVAL AND INSTALLATION B8 5 INTAKE AIR TEMPERATURE SENSOR EE B8 6 REMOVAL AND INSTALLATION B8 6 MANIFOLD ABSOLUTE PRESSURE SENSOR er eerd aere seep B8 7 REMOVAL AND INSTALLATION B8 7 OIL CONTROL VALVE B8 8 REMOVAL AND INSTALLATION B8 8 THROTTLE POSITION SENSOR B8 9 REMOVAL AND INSTALLATION B8 9 IDLE SPEED CONTROL VALVE B8 11 REMOVAL AND INSTALLATION B8 11 FRONT OXYGEN SENSOR B8 12 REMOVAL AND INSTALLATION B8 12 REAR OXYGEN SENSOR REAR OXY GEN SENSOR EQUIPPED VEHICLES ONY eiaeaen aeea cama B8 14 REMOVAL AND INSTALLATION B8 14 ENGINE CONTROL SYSTEM B8 16 ARTICLES TO BE PREPARED B8 16 HANDLING INSTRUCTIONS OF CON TROL SYSTEM eege B8 17 SYSTEM WIRING DIAGRAM B8 18 ARRANGEMENT OF ECU TERMINAL Sege B8 19 LOCATION OF COMPONENTS B8 21 HOW TO PROCEED WITH TROUBLE BEIENEE B8 22 Wetter B8 25 SYMPTOM CONFIRMATION B8 27 CONFIRMATION RECORD AND ERA SURE OF DIA
41. C or over SPECIFIED VALUE Water temperature condition Radiator fan condition At 80 C or lower 100 C Stopped Rotating The condition under which the air conditioner is turned OFF The air conditioner switch ACSW blower switch BLW mag net clutch MGC are all set to OFF V If the result is OK the radiator fan system is normal V If the result is NG go to 6 gt 6 Checking the single unit of the water temperature sensor 1 Carry out the single unit checking of the water temperature sensor Refer to Page B8 129 SPECIFIED VALUE The water temperature sensors is normal V If the result is OK go to 7 V If the result is NG replace the water temperature sensor Refer to Page B8 5 D7 Checking the wiring harness 1 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 98 THW linking the EFl ECU and the vehicle side harness connector 1 THW linking the water temperature sensor 2 Between vehicle side harness connector 131 E2 linking the EFl ECU and the vehicle side har ness connector 2 E2 linking the water temperature sensor 3 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector SPECIFIED VALUE No abnormality exists V If the result is OK check the EFI ECU circuit Refer to Page A1 32 V If itis NG repair or replace harnes
42. Checking condition Reference value S y Major checking name items Number of diag Indicatives the number of diagnosis nosis codes codes E O 7 DIAG O 255 Complete warming up 80 to 97 C Engine coolant Indicates the temperature of the engine When the sensor is 3 f ae 119 to 140 C temperature cooling water short circuited THW voltage ECT 40 to 140 C When the sensor wire is bro 5 40 C ken Engine stopped 90 to 110kPa When idling after the engine is warmed up ae 2 40kP l Air conditioner set to OFF Cre gOS Manifold abso Indicates the pressure in the manifold by with no engine load applied VCPM voltage lute pressure using the absolute pressure SEN MAP 0 to 120kPa When the engine is running PIM voltage at a certain speed with the air conditioner OFF and no 19 to 39kPa load applied to the engine 2000rpm Engine revolution ee ne speed Indicates the engine speed ENEE ee EECH significant N2 voltage RPM at a certain speed variation B8 145 Duri a The data name vee Abbreviated Explanations of items Checking condition Reference value y Major checking name f items Vehicle speed f l When a certain amount of No significant he PD vol VS Mdicateste VeneIersRegd distance has been traveled variation SPD voltage When cranking 4 to 8 degrees When idling after the engine is warmed up Se 1 hee thos Fis
43. E5144ET10 SPECIFIED VALUE No abnormality exists Y If normal replace the combination meter Ay Refer to Page J3 3 v If itis NG repair or replace harness and connector at the faulty section B8 91 13 13 18 P0505 71 ISC VALVE SYSTEM IDLING CONTROL SYSTEM 1 System diagram idling control system EFI ECU set IACALO 66 IACAHI 67 IACBLO 108 g t IACBHI 104 EM Stepper motor for ISC W21E5123ES20 Stepper motor for ISC connected vehicle harness side connector IACALO PK 112 ER ACBLO IACAHI IACBHI T11E6171S10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 When the signal is continuously outside the setting range for a certain length of time 3 Checking Points 1 Harness and connectors linking evapo stepper motor and the EFI ECU 2 ISC stepper motor 3 EFL ECU B8 92 4 Check procedure D1 Data monitor 1 1 Read out the data monitor Engine revolution speed by using the diagnosis tester 1 Check if the engine speed is high when it is cold but slows down as it warms up and maintains the idling speed SPECIFIED VALUE The engine condition Displayed data The air conditioner is turned OFF no electric 750450 l
44. F no electric load applied engine speed held at 3000 rom The condition under which the air conditioner is turned OFF and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example to the right SPECIFIED VALUE The 01V waveform is emitted when the front oxgen sensor is ac tivated T11E6241T10 NOTE e The signal from the front oxygen sensor cannot be checked for the correct output without using an oscillo scope V If the result is OK go to 7 V If the result is NG go to 8 D7 Checking the wiring harness 1 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 113 EFI T linking the EFl ECU and the DLC connec tor 12 EFI T 2 SPECIFIED VALUE No abnormality exists V If the result is OK check the EFI ECU circuit and go to 10 Refer to Page A1 32 Y If the result is NG repair or replace the harness and the connectors of the malfunctioning section and go to gt 10 gt 8 Checking of the single unit of the front oxygen sensor 1 Carry out the single unit checking of the front oxygen sensor Refer to Page B8 130 SPECIFIED VALUE The front oxgen sensor is normal V If the result is OK go to 9 V If the result is NG replace the front oxygen sensor and go to gt gt 10 Refer to P
45. Fuel pump relay connected fuse block side connector Mein relay connected fuse block side connector W21E5150ES10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Checking points 1 Fuel pump relay connector voltage 2 The fuel pump relay 3 Fuel pump power supply voltage 4 The fuel pump system B8 114 3 Check procedure D1 Active test 1 Carry out the active test Fuel pump by using the diagnosis tester SPECIFIED VALUE The fuel pump condition When it is ON Driving When it is OFF Stopped NOTE e Check the operating sound at the fuel inlet side V If itis OK go to 2 V If itis NG go to 5 gt gt 2 Fuel pressure checking 1 Carry out the fuel pressure checking Refer to Page B8 127 SPECIFIED VALUE Fuel pressure inspection shows normal v If itis OK go to D3 v If itis NG go to 4 L Checking the EFI ECU output signal 1 1 Connect the SST SST 09842 97209 000 2 Measure the voltage between terminals SST50 FC1 and SST130 E1 under the following condition 3 SPECIFIED VALUE Condition Specified value 2 seconds after the ignition switch is E set to ON When 2 seconds or more have elapsed after the ignition switch is set Battery voltage to ON When idling 2 0
46. GNOSIS CODE B8 27 FAIL SAFE FUNCTION B8 33 BASIC CHECK seerscostbercceseees B8 34 TROUBLE SHOOTING ACCORDING TO MALFUNCTION PHENOMENA B8 36 TROUBLE SHOOTING ACCORDING TO DIAGNOSIS CODE B8 41 TROUBLE SHOOTING ACCORDING TO SYSTEM settanta B8 106 UNIT CHECKs lt seeqscceadencdensse B8 127 ECU INPUT OUTPUT SIGNAL CHECK EE B8 137 ECU DATA MONITOR FREEZE FRAME DAV ee B8 144 ACTIVE TES fe s entinen B8 150 B8 1 E 3SZ 1 ENGINE CONTROL COMPUTER 1 1 REMOVAL AND INSTALLATION 1 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Remove the No 2 instrument panel under cover Refer to Page 12 41 3 Remove the glove compartment door Ay Refer to Page 12 38 4 Disconnect the connectors of the engine control computer 1 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components P21E6509S20 2 Removal and installation procedures 1 a Bracket computer 2 b Computer Ay fuel injection 1 1 3 OPERATION AFTER INSTALLATION 1 Connect the connectors of the engine control computer 2 Attach the glove compartment door Ay Refer to Page 12 38 3 Attach the No 2 instrument panel under cover Refer to Page 12 41 4 Connect the negative terminal of the battery B8 2 2 ENGINE REVOLUTION SENSOR 2 1 REMOVAL AND INSTALLATION 2 1 1 ARTICLES TO BE PREPARED Lubricants bonds others Engine oil 2 1 2
47. IFOLD PRESSURE SENSOR 1 Connect the SST VCPM PIM E2PM SST 09842 97209 000 paeme N A 2 T 1 Between SST101 VCPM and SST64 E2PM SPECIFIED VALUE 4 75 to 5 25V 3 With the ignition switch set to ON measure the voltage between the following terminals 1 Between SST102 PIM and SST64 E2PM SPECIFIED VALUE 3 1 to 4 1V Eeer 4 Disconnect the connector of the fuel pump and perform cranking And then measure the voltage between the following terminals 1 Between SST102 PIM and SST64 E2PM SPECIFIED VALUE The voltage values vary B8 129 13 15 4 INTAKE AIR TEMPERATURE SENSOR 1 Measure the resistance value between the following ter minals 1 Between 1 E2 and 2 THW Characteristics of intake air temperature sensor Temperature C 30 20 20 80 120 16 2 1 2 450 0 322 0 Resistance kQ 28 6 e 24 032 0 117 NOTE e Figures inside parentheses show reference values 13 15 5 ENGINE REVOLUTION SENSOR 1 Measure the resistance value between the following ter minals 1 Between 1 N1 and 2 N1 SPECIFIED VALUE 21504300 20 C 13 15 6 CAMSHAFT POSITION SENSOR 1 Measure the resistance value between the following ter minals 1 Between 1 N2 and 2 N2 SPECIFIED VALUE 21504300 20 C 13 15 7 COOLANT TEMPERATURE SENSOR 1 Measure the resistance value between the following ter minals 1 Between
48. If the result is NG check the EFI ECU circuit Refer to Page A1 32 D4 Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between EFI ECU connection vehicle harness side connector 20 OCV and the oil control valve connected vehicle harness side connector 1 OCV 2 Between EFI ECU connection vehicle harness side connector 19 OCV and the oil control valve connected vehicle harness side connector 2 OCV SPECIFIED VALUE No abnormality exists V If itis OK go to 5 v If itis NG repair or replace harness and connector at the faulty section B8 43 LCGB Checking the single unit of the oil control valve 1 Carry out the single unit checking of the oil control valve Refer to Page B8 133 SPECIFIED VALUE Oil control valve normal V If the result is OK go to D6 V If the result is NG replace the oil control valve D6 Checking the EFI ECU input signals 1 Carry out the troubleshooting in the same manner as the troubleshooting according to the diagnosis codes as shown below 1 PO105 31 Manifold absolute pressure signal Refer to Page B8 49 2 PO115 42 Coolant temperature sensor short open Refer to Page B8 53 3 P0120 41 Throttle sensor signal Refer to Page B8 56 4 P0335 13 Engine revolution sensor signal Refer to Page B8 76 5 P0340 14 Camshaft position sensor signal
49. K check the ignition key and the antenna coil Refer to Page 14 21 v If NG replace the immobilizer ECU B8 106 13 14 TROUBLE SHOOTING ACCORDING TO SYSTEM 13 14 1 CHECKING THE ENGINE CHECK LAMP SYSTEM 1 System diagram EFI ECU wi Fuse Engine check lamp ECU 1G2 7 5A 130 E1 Combination meter connected vehicle harness side connector IG switch IG2 AM2 30A F L E Battery IH W21E5128ES20 A B EFI ECU connected vehicle harness side connector Ee 21314 5 61 7 8 9 10 11112 13 14 15116 17 18 19 20 P21A5504S10 W21E5145S10 B8 107 2 Checking points 1 Engine check lamp valve 2 Harness and connectors linking combination meter and the EFI ECU 3 Power supply voltage and ground circuit for EFl ECU NOTE e f the sensor system power supply 5 V is short circuited to the earth side the ECU circuit pro tection function may temporarily shut down the power supply of the EFl ECU For this reason be sure to carry out checking of the sensor system power supply circuit also 4 Power supply voltage and ground circuit for combination meter 3 Checking method GI Checking the engine check lamp condition 1 Confirm that the engine check lamp turn on when the ignition switch is turned ON and the
50. P0016 62 Chain timing faulty P0016 75 Valve timing faulty and P0010 74 Oil control valve system is not output V If P0016 62 or P0016 75 is output check the P0016 62 or P0016 75 Refer to Page B8 48 Y If P0010 74 is output check P0010 74 Oil control valve system Refer to Page B8 41 V If it is not output go to 2 D2 Oil control valve operation checking WARNING e The inspection will cause sparks to be generated which is quite dangerous Make sure no com bustible materials are placed in the surrounding area e It is an operation to be performed while the engine is running Pay special attention to the safety while performing the operation 1 Disconnect the connector of the oil control valve 2 Start the engine and keep idling 3 Apply battery voltage to the oil control valve connector Align polarity of connector with that of battery CAUTION e Pay attention not to cause any short circuiting to oc cur during work operation Connect the plus side via a fuse for the safety sake e Make sure that the voltage is not applied for more than one minute 4 Confirm the idling condition of the engine SPECIFIED VALUE Rough idling or stalling of the en ee gine occurs V If itis OK go to S83 v If itis NG go to gt 4 gt gt 3 Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between EFI ECU connection vehicle harne
51. PM sensor 2 Between vehicle side harness connector 100 N1 linking the EFI ECU and the vehicle side harness connector 2 N1 linking the engine RPM sensor 3 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If itis OK go to Ss V If itis NG repair or replace harness and connector at the faulty section gt gt 3 Checking the single unit of the engine revolution sensor 1 Carry out the single unit checking of the engine revolution sensor Refer to Page B8 129 SPECIFIED VALUE The engine RPM sensor is normal v If itis OK go to 4 V If the result is NG replace the engine revolution sensor Refer to Page B8 2 B8 78 D4 Checking the signal rotor 1 Visually check the signal rotor section of the crank shaft for any missing teeth or deformation SPECIFIED VALUE No missing teeth or deformation V If the result is OK check the connecting status of the connectors at each section or the installa tion condition of the engine revolution sensor V If the result is NG replace the signal rotor B8 79 13 13 14 P0340 14 CAMSAFT POSITION SENSOR SIGNAL 1 System diagram EFI ECU a N Camshaft position sensor N2 87 N2 mi EE A W21E5119ES20 Camshaft position sensor connected vehicle harness side connector N2 N2 T11E6153S
52. Possibility of short circuiting within the water temperature sensor system c Deviation from the real water temperature Possibility of abnormality in the resistance value within the water temperature sensor system d Equivalent to the real water temperature Possibility of temporary malfunction NOTE e When confirming the water temperature it is sometimes possible that a significant difference is produced between the temperature of the radiator and the hose and the surrounding temperature of the water temperature sensor because of the function of the thermostat e The resistance characteristics reference value of the water temperature sensor are as shown be low Ges 40 20 20 80 110 140 1 Q or lower Resistance is SE 14 96 2 44128 0 3143 0 0126k2 0 1403kQ g short circuiting V On the basis of the possible causes of malfunction go to 2 gt gt 2 Water temperature sensor on vehicle checking 1 Disconnect the connector of the water temperature sensor and measure the resistance value be tween the terminals with the water temperature at 20 C 1 Sensor side connector 2 THW 1 E2 SPECIFIED VALUE resistance value Possible causes of the malfunction a 1 MQ or higher Possibility of breaking of wire within the water temperature sensor b 1 Q or lower Possibility of short circuiting within the water temperature sensor system CG Abnormality in th
53. Radiator fan relay Radiator fan motor IG switch connected connected relay connected vehicle vehicle harness side block side connector harness side connector connector THW E2 ee 112 Engine coolant temperature connected vehicle harness side connector W21E5135ES10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Checking points 1 Signal from water temperature sensor input to the EFI ECU 2 Water temperature sensor 3 Harness and connectors linking water temperature sensor and the EFI ECU 4 Radiator fan motor 5 Harness and connectors linking radiator fan relay and the EFI ECU 6 Magnetic clutch 7 Harness and connectors linking magnetic clutch relay and the EFI ECU B8 123 3 Check procedure D1 Diagnosis code checking 1 Read out the diagnosis code by using the diagnosis tester V If the diagnosis code is not outputted go to 2 V If the diagnosis code is outputted check the code that is outputted Refer to Page B8 30 gt gt 2 Active test 1 When the air conditioner is OFF and when the engine is cold carry out the active test radiator fan by using the diagnosis tester SPECIFIED VALUE Operating the di The radiator fan condition agnosis tester a Rotation Stopped b ON OFF No rotation C No stopping alway
54. SST55 STA and SST130 E1 SPECIFIED VALUE Battery voltage Y If the result is OK check the EFI ECU circuit Refer to Page A1 32 v If itis NG go to 2 gt gt 2 Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 55 STA linking the EFl ECU and the vehicle side har ness connector 4 ST linking the ignition switch 2 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists Y f normal inspect starter circuit Refer to Page B11 2 v If itis NG repair or replace harness and connector at the faulty section B8 100 13 13 21 P0535 44 A C EVAPORATOR TEMPERATURE SENSOR 1 System diagram EFI ECU A C evaporator temperature sensor ACEV 45 E21 W21E5127ES20 Air conditioner evaporator temperature connected vehicle harness side connector ACEV E21 K11E6041S10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 When the signal from the air conditioner evaporator temperature sensor is not outputted consecu tively for a certain length of time with the air conditioner switch i
55. THE CHECK SUB HARNESS 1 When the ECU terminal voltage is measured with the EFl ECU connector connected to the EFI ECU connect the SST by following the procedure given below NOTE e Each of the terminal number of the SST connector is the same as the ECU connector 2 Set the ignition switch to LOCK Disconnect the battery ground cable from the negative ter minal of the battery with the ignition switch set to LOCK NOTE Be sure to record the diagnostic trouble code before disconnecting the battery cable 3 Connect the following SST between the EFl ECU connector and the wire harness connectors SST 09842 97209 000 4 Reconnect the battery ground cable to the negative terminal of the battery CAUTION e When disconnecting the EFI ECU connectors be sure to disconnect the negative cable from the battery with the ignition switch and all accessory switches are set to LOCK e When installing a new battery care must be taken not to mistake the battery polarity Failure to observe this caution could cause an EFI ECU malfunction e Before using the SST be sure to check to see if short circuit or open wire exists between the ter minals of the SST B8 25 13 7 INQUIRY 13 7 1 DESCRIPTION 1 In your attempt to remove the causes for a malfunction of the vehicle you will not able to remove the causes unless you actually confirm the malfunctioning phenomenon No matter how long you con tinue operations the vehicle
56. U vehicle harness connector 21 OX2 and rear oxygen sensor vehicle harness connector 1 OX2 2 Between EFI ECU vehicle harness connector 131 E2 and rear oxygen sensor vehicle harness connector 4 E2 2 Between EFI ECU vehicle harness connector 130 E1 and body ground Refer to Page A1 31 SPECIFIED VALUE Normal v If OK proceed to step 4 v If NG repair or replace the harnesses and connectors that are faulty and then proceed to ste D4 D4 Confirmation test 1 Follow the procedure described below to check that a diagnosis code is not output again Drive pattern Vehicle speed 70 sec or more 70 km h L Idling IG i ay Warmed up ao L31E5520ES10 B8 67 1 Check the diagnosis code and check that a malfunction code is not output 2 Start the engine and let it warm up for 10 minutes or more until the temperature of the engine coolant is 90 C or more 3 Accelerate from first to second until the vehicle speed reaches 70 km h or more and run the vehicle at more than 70 km h for at least 70 seconds 4 Release your foot from the accelerator pedal and let the vehicle decelerate for approximately 5 seconds without stepping on the brake 5 Let the engine idle 6 Without operating the ignition switch repeat steps 1 to 5 three times 7 Set the ignition switch to LOCK 8 NO o Check that diagnosis code P0136 22 is not output TE f these tes
57. V or lower V If the result is OK the fuel pump system is normal V If the result is NG check the EFI ECU circuit Refer to Page A1 32 D4 Checking the single unit of the fuel pump 1 1 Carry out the single unit checking of the fuel pump Refer to Page B8 127 SPECIFIED VALUE The fuel pump is normal V If the result is OK check or repair the fuel line v If the result is NG replace the fuel pump Refer to Page A1 29 B8 115 CB Checking the fuel pump relay voltage 1 Disconnect fuel pump relay 2 Measure voltage between each terminal while IG SW is set to ON 1 Between connector 1 coil side linking the fuse box connecting the fuel pump relay and the body ground connector 2 Between connector 2 switch side linking the fuse box connecting the fuel pump relay and the body ground connector SPECIFIED VALUE Battery voltage V If normal proceed to step 6 Y If switch is faulty proceed to step 11 V If the coil is faulty proceed to inspect and repair the following parts 3 Harness and connectors linking fuel pump relay and the battery 4 Fuse 5 Ignition Switch D6 Checking the single unit of the fuel pump relay 1 Carry out the single unit checking of the fuel pump relay Refer to Page B8 135 SPECIFIED VALUE The fuel pump relay is normal v If itis OK go to 7 V If the result is NG replace the fuel pump relay gt gt 7 Wire harness check 1 1 Check the wiring h
58. VTH voltage 0 to100 When idling after the engine THW voltage is warmed up 20 to 60 Air conditioner set to OFF Cold start gt Complete warm ing up Air conditioner is set to E OFF with no engine load Injection time Indicates the injection time of the injector wnen a Ee SE eg NH tos 20s Air conditioner is set to el OX1 voltage OFF with no engine load At 2000 rom Air conditioner is set to 1 0 to 1 8ms OFF with no engine load After the engine is warmed Nad up engine is running at con Pike eye VF monitor Fuel to air ratio is revised to display a stant speed engine under me 0 75 to 1 48 fuel system VFKG learning value load ignition system 3000rpm exhaust system After the engine is warmed O2 sensor signal l up engine is running at con l Display RICH or LEAN stant speed engine under no LeanRich OX1voltage OX load 3000rpm B8 148 CAUTION e The values produced by the data monitor tend to show discrepancies over time due to measuring errors and changes in operating environments making it difficult to display accurate reference val ues deciding values Therefore poor operation may develop even when values are within the reference range A technique involving gathering data using a vehicle of the same model tested under the same conditions is used to assess such difficult to assess events as second wind and rough idling As sessments are broadly based o
59. acting out during running Throttle position sensor Deviation in the characteristics Control system Camshaft position sensor Output signal defective Oil control valve Operation defective Deviation in the characteristics breaking manifold pressure sensor Ce of wire short circuiting Abnormal knock SS SS ah Control system Throttle position sensor Deviation in the characteristics ing takes place ame ee n Deviation in the characteristics breaking Knock sensor of wire short circuiting B8 41 13 13 TROUBLE SHOOTING ACCORDING TO DIAGNOSIS CODE 13 13 1 P0010 74 OIL CONTROL VALVE SYSTEM 1 System diagram EFI ECU C gt OCV 20 Oil control valve ocv E E1 E W Lif W21E5104ES20 Oil control valve connected vehicle harness side connector ocv ocv Nex We H11E6067S10 EFI ECU connection vehicle harness side connector W21E5145S10 2 Output conditions 1 When either of the following conditions lasted for a certain length of time or longer with the battery voltage maintained at 12 V or higher 1 When the oil control valve voltage is lower than the criterion value with the output duty ratio at 99 or higher 2 When the oil control valve voltage is higher than the criterion v
60. age B8 12 B8 72 9 Checking the wiring harness 2 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 2 3 Between vehicle side harness connector 22 OX1 linking the EFI ECU and the vehicle side harness connector 3 OX1 linking the front oxgen sensor Between vehicle side harness connector 131 E2 linking the EFl ECU and the vehicle side har ness connector 4 E2 linking the front oxgen sensor Between vehicle side harness connector 130 E1 linking the EFl ECU and the ground connec tor Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK check the EFI ECU circuit and go to 10 Refer to Page A1 32 V If the result is NG repair the malfunctioning harness and the connectors or replace them with new items go to gt gt 10 gt gt 10 Confirmation test 1 By observing the following procedure confirm that the diagnosis code is not output again Driving pattern Vehicle speed 70 km h Idling H IG SW OFF Time Warmed up 5 min or so E Ka Ka C13E5564ES10 Confirm the diagnosis code is not being output Start the engine and warm it up for 5 minutes or more until the temperature of the engine cool ing water reaches 90 C or higher Put the gear lever into the 5th gear or select D range and drive the vehicle for 5minutes or more at a speed of 70 km h or higher Let the
61. agnosis The method for evaluating mal functions Warning indica tion P0500 52 Vehicle speed sensor signal system When an abnormality takes place in the signal from the vehicle speed sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 1 trip P0505 71 ISC valve system When malfunction takes place in the detection signal for the ISC stepper motor Breaking of wire or short circuiting of a wire in the signal system etc 1 trip P0512 54 Starter signal system When an abnormality takes place in the signal from the starter Breaking of wire or short circuiting of a wire in the signal system etc 1 trip P0535 44 A C evaporator tempera ture sensor When an abnormality takes place in the signal from the evaporator temperature sensor signal Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 1 trip P0603 83 E2PROM Read Write When a communication error with the immobi lizer ECU occurs or when the code collation is mismatched 1 trip U0167 81 E2PROM Read Write When collation of the collation code in the communication with the immobilizer ECU due to an internal malfunction of the engine control computer system 1 trip NOTE e Malfunction evaluation method 1 trip indicates the IG switch should be set to ON the engi
62. alue with the output duty ratio at 0 B8 42 3 Checking points 1 Oil control valve signal output by the EFI ECU 2 Harness and connector s linking the oil control valve and the EFI ECU 3 EFI ECU 4 Checking method D1 Diagnosis code checking 1 Use diagnosis tester to read out the diagnosis code SPECIFIED VALUE P0016 62 Chain timing control system is not output V If it is output check the timing chain for extension V If it is not output go to 2 gt gt 2 Data monitor 1 1 Warm up the engine 2 Use diagnosis tester to read out the data monitor Target angle of intake cam and Actual angle of intake cam SPECIFIED VALUE While the vehicle is running the real displacement angle will vary by following the target displacement angel V If the result is OK it is possible that the system has returned to the normal condition Therefore leave the system as it is to observe the condition for a while V If the result is NG go to 3 L Data monitor 2 1 Warm up the engine 2 Use diagnosis tester to read out the data monitor VVT control duty ratio SPECIFIED VALUE The engine condition Displayed data The air conditioner is turned OFF no electric 30 to 55 load applied when the engine is idling The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW mag net clutch MGC are all set to OFF V If the result is OK go to 4 V
63. and installation procedures A 1 a Sensor throttle position 9 1 3 POINTS OF INSTALLATION 1 Confirm that the throttle valve is fully closed 2 With the throttle valve turned 30 degrees to the left of the fully closed position attach the throttle position sensor to the throttle body 3 Turn the throttle position sensor to the right and attach it with the 2 screws 30 degrees P21E6513ET10 B8 10 9 1 4 OPERATION AFTER INSTALLATION 1 Connect the connectors of the throttle position sensors 2 Install the air cleaner case Refer to Page B3 1 3 Connect the negative terminal of the battery B8 11 10 IDLE SPEED CONTROL VALVE 10 1 REMOVAL AND INSTALLATION 10 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Disconnect the connectors of the idle speed control actuator Ay 10 1 2 REMOVAL AND INSTALLATION PROCEDURES 1 Components T 1 7540 25 17 8 2 5 P21E6508ES20 X Non reusable parts Unit N m kgf cm 2 Removal and installation procedures 1 a Actuator Ay idle speed control 2 b Gascket idle speed contorol valve 10 1 3 OPERATION AFTER INSTALLATION 1 Connect the connectors of the idle speed control actuator Ay 2 Connect the negative terminal of the battery B8 12 11 FRONT OXYGEN SENSOR 11 1 REMOVAL AND INSTALLATION 11 1 1 OPERATION BEFORE REMOVAL 1 Disconnect the negative terminal of the battery 2 Disconnect the
64. arness between the following sections for breaking of wires and short circuiting 1 Between connector 4 linking the fuse box connecting the fuel pump relay and the vehicle side harness connector 3 pump linking the fuel pump 2 Between connector 4 pump linking the fuse box connecting the fuel pump and the body ground connector SPECIFIED VALUE No abnormality exists V If itis OK go to 8 v If it is NG repair or replace harness and connector at the faulty section D8 Checking the single unit of the fuel pump 2 1 Carry out the single unit checking of the fuel pump Refer to Page B8 127 SPECIFIED VALUE The fuel pump is normal V If itis OK go to 9 V If the result is NG replace the fuel pump Refer to Page B7 9 B8 116 D9 Checking the EFI ECU output signal 2 1 Connect the SST SST 09842 97209 000 2 Measure the voltage between terminals SST50 FC1 and SST130 E1 under the following condition 3 Under the following conditions measure the voltage between the SST47 FC3 and SST130 E1 terminals Immobilizer equipped vehicles SPECIFIED VALUE Condition Specified value 2 seconds after the ignition switch is GE set to ON When 2 seconds or more have elapsed after the ignition switch is set Battery voltage to ON When idling 2 0 V or lower v If itis OK go to 10 V If the result is NG check the EFI ECU circuit Refer to Page A1 32 gt gt 10 Wire harne
65. c 1 trip PO120 41 Throttle sensor signal When abnormality takes place in the signal from the throttle position sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 1 trip P0130 21 Front oxygen sen sor range open When abnormalities take place two times con secutively in the signal from the front oxygen sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 2 trips B8 31 DTC No Diagnosis items Contents of diagnosis The method for evaluating mal functions Warning indica tion P0135 23 Front oxygen sensor heater signal When an abnormality takes place in the signal from the front oxygen sensor heater Breaking of wire or short circuiting of a wire in the front oxygen sensor heater system 1 trips O P0136 22 Rear oxygen sen sor range open When abnormalities take place two times con secutively in the signal from the rear oxygen sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 2 trips P0171 25 Fuel system lean faulty When the air to fuel ratio deviates two times consecutively to the lean side due to abnor mality of the fuel trim system Abnormal combustion pressure injector oxygen sensor abnormal etc 2 trips P0172 26 Fuel s
66. ch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example to the right 5 Confirm the following points 1 0a battery voltage is generated 3 Engine speed output signal 1 Connect the SST SST 09842 97209 000 H11E6127T10 2 Use an oscilloscope to measure the waveform emitted from the following connector 3 Completely warm up the engine 1 SST118 REV and SST130 E1 B8 141 4 In the case of measuring range and the measuring con dition as an example the oscilloscope waveform will be as in the right diagram Time axis 50ms DIV Voltage axis DV DIV Condition The air conditioner is turned OFF no elec tric load applied when the engine is idling The condition under which the air conditioner is turned OFF and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE T11E6244T10 e Unable to identify waveform with the form shown in the figure one example to the right 5 Confirm the following points 1 0a battery voltage is generated 2 The waveform period becomes shorter as the en gine speed rises 4 Engine revolution sensor 1 Connect SST SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 3 Fully warm up the engine 1 Between SST63 N1 and SST100 N1
67. characteristics breaking of wire short circuiting Knock sensor Breaking of wires short circuits Fuel system Injector Declining of the flow rate Ignition coil Poor contacting Ignition system Spark plug Misfire Back fire Ignition timing Misalignment After fire SBO08_EF_D99BE1_0338 Operation defective E EE Coolant temperature sensor Deviation in the characteristics y Camshaft position sensor Output signal defective Oil control valve Operation defective Fuel line Fuel filter Fuel pressure not increased Fuel system Injector Declining of the flow rate Fuel pump Fuel pressure not increased Igniti k pl Misfir Engine output gnition system Spar plug iS e SS l insufficient manifold pressure sensor Deviation in the characteristics breaking Coolant temperature sensor of wire short circuiting Control system Throttle position sensor Deviation in the characteristics Camshaft position sensor Output signal defective Oil control valve Operation defective Fuel system Injector Always injection i Deviation in the characteristics breaking Black smoke emit manifold pressure sensor l NE of wire short circuiting ted Control system Coolant temperature sensor ERE EN a Deviation in the characteristics Throttle position sensor Fuel line Fuel filter Clogging Fuel m Ke Injector Operation defective Hunting carried Ignition system lgnition coil Poor cont
68. cle side harness connector 3 0X1 linking the front oxgen sensor 2 Between vehicle side harness connector 131 E2 linking the EFl ECU and the vehicle side har ness connector 4 E2 linking the front oxgen sensor 3 Between vehicle side harness connector 130 E1 linking the EFl ECU and the ground connec tor Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK check the EFI ECU circuit and go to 5 Refer to Page A1 32 V If the result is NG repair or replace the harness and the connectors of the malfunctioning section and go to gt 5 B8 62 D5 Confirmation test 1 By observing the following procedure confirm that the diagnosis code is not output again Engine racing pattern Engine speed 2 500 3 000 rpm J Idling E gt IG SW OFF Time Warmed up 3 min or so a gt 4 C13E5562ES10 1 Confirm the diagnosis code is not being output 2 Start the engine and warm it up until the radiator fan starts rotating 3 Maintain the engine speed at 2500 to 3000 rpm for approximately 3 minutes 4 After idling the engine for 1 minute set the ignition switch to LOCK and carry out the above procedure from step 1 to 3 5 Confirm that the diagnosis code No P0130 21 is not output NOTE e f this test condition cannot be observed faithfully this malfunction cannot be detected XE wee ef SPECIFIED VALUE P0130 2
69. ctor 4 IACBHI linking the ISC stepper motor 5 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK go to 6 YV If the result is NG repair or replace the harness and the connector of the malfunctioning section B8 94 D6 EFI ECU signal checking 1 Connect the SST SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST66 IACALO and SST130 E1 Fig 1 gt 2 Between SST67 IACAHI and SST130 E1 Fig 2 gt Time axis ts DIV Voltage axis 5V DIV Condition Air conditioner ON when idling The condition under which the air conditioner is turned ON and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to ON NOTE e Unable to identify waveform with the form shown in the figure one example 3 Between SST103 IACBLO and SST130 E1 Fig 1 gt 4 Between SST104 IACBHI and SST130 E1 Figure 2 gt Time axis s DIV Voltage axis 5V DIV Condition Air conditioner ON when idling Air conditioner ON The condition under which the air conditioner is turned ON and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to ON NOTE e Unable to identify waveform with the form shown
70. ctors 1 Between SST62 VC and SST130 E1 2 Between SST101 VCPM and SST130 E1 SPECIFIED VALUE 4 75 V to 5 25 V V If itis OK go to 5 V If the result is NG check the EFI ECU power supply system Refer to Page B8 109 D5 Checking the combination meter 1 Carry out checking of the combination meter Refer to Page J3 8 SPECIFIED VALUE The combination meter is normal V If the result is OK go to D6 V If the result is NG check the circuit of the combination meter Refer to Page A1 32 gt 6 Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 13 W linking the EFl ECU and the vehicle side har ness connector 7 CHK_E G linking the combination meter 2 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK check the EFI ECU circuit and the combination meter circuit Refer to Page A1 32 v If itis NG repair or replace harness and connector at the faulty section B8 109 13 14 2 CHECKING THE EFI ECU VOLTAGE SYSTEM 1 System diagram Fuse EFI 15A EFI ECU BAT G Main relay B Fuse ENGINE 10A IG switch IG2 130 E1 23 E01 Op H W21E5130ES20 Each unit connected vehicle harness side connec
71. d when the front oxgen sensor is ac tivated NOTE e The signal from the front oxygen sensor cannot be checked for the correct output without using an oscillo scope v If itis OK go to 2 V If itis NG go to 3 B8 61 gt gt 2 Checking the wiring harness 1 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 113 EFI T linking the EFl ECU and the DLC connec tor 12 EFI T 2 Between vehicle side harness connector 13 W linking the EFl ECU and the vehicle side har ness connector 7 CHK_E G linking the combination meter SPECIFIED VALUE No abnormality exists V If the result is OK check the EFI ECU circuit and go to rb Refer to Page A1 32 V If the result is NG repair or replace the harness and the connectors of the malfunctioning section and go to gt 5 gt gt 3 Checking the single unit of the front oxygen sensor 1 Carry out the single unit checking of the front oxygen sensor Refer to Page B8 130 SPECIFIED VALUE The front oxgen sensor is normal v If itis OK go to 5 V If the result is NG replace the front oxygen sensor and go to 5 Refer to Page B8 12 D4 Checking the wiring harness 2 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 22 OX1 linking the EFl ECU and the vehi
72. d short circuiting 1 Between vehicle side harness connector 62 VC linking the EFl ECU and the vehicle side har ness connector 1 VC linking the throttle position sensor 2 Between vehicle side harness connector 131 E2 linking the EFl ECU and the vehicle side har ness connector 2 E2 linking the throttle position sensor 3 Between vehicle side harness connector 99 VTH linking the EFI ECU and the vehicle side harness connector 3 VTH linking the throttle position sensor 4 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK check the connecting state of the connectors at every section v If itis NG repair or replace harness and connector at the faulty section B8 59 13 13 8 P0130 21 FRONT OXYGEN SENSOR RANGE OPEN 1 System diagram EFI ECU Oxi OXH1 6 Front oxygen sensor To main relay E1 E2 W21E5111ES20 Front oxygen sensor connected vehicle harness side connector ee G3 EFI ECU connected vehicle harness side connector M24E6054S10 W21E5145S10 2 Output conditions 1 When the signal from the front oxygen sensor never reaches the rich side under the condition after
73. e radiator fan motor and radiator fan relay V If the result is NG check the EFI ECU circuit Refer to Page A1 32 B8 127 13 15 UNIT CHECK WARNING e Driving a vehicle with SST EFI computer check sub harness etc being connected might cause an error operation to occur which is extremely dangerous Make sure that SST has been dis connected before driving the vehicle 13 15 1 FUEL PRESSURE CHECKING WARNING e Never use fire during the work Place cloth etc to prevent fuel from splashing 1 Connect diagnosis tester 2 Remove the fuel hose from the fuel delivery pipe inlet and attach the fuel pressure gage to the pipe via a 3 way 3 Set the ignition switch to ON 4 Carry out the active test fuel pump by using the diagnosis tester 5 Measure the fuel pressure when the fuel pump is driven SPECIFIED VALUE 324 5 kPa 3 3 0 05 kgf cm No significant variation taking place 13 15 2 FUEL PUMP WARNING E e Never use fire during the work 1 Set the ignition switch to ON 2 1 2 Carry out the active test fuel pump by using the diag nosis tester 3 Measure the fuel pressure when the fuel pump is driven 4 3 SPECIFIED VALUE 324 5kPa 3 3 0 05kgf cm No major change 4 Set the ignition switch to LOCK 5 Disconnect the pump connector on the fuel tank 6 Measure the resistance between 3 pump and 4 pump SPECIFIED VALUE 0 2 to 3 09 T11E6201T10 B8 128 13 15 3 MAN
74. e resistance characteristics within Possibility of abnormality in the resistance value in the the water temperature sensor water temperature sensor d No abnormality in the resistance characteristics of The water temperature sensor is normal the water temperature sensor V Inthe case of d go to 3 V Inthe case of a b orc goto 5 B8 59 L Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 98 THW linking the EFl ECU and the vehicle side harness connector 1 THW linking the water temperature sensor 2 Between vehicle side harness connector 131 E2 linking the EFl ECU and the vehicle side har ness connector 2 E2 linking the water temperature sensor 3 Between vehicle side harness connector 130 E1 linking the EFI ECU and the ground connec tor Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If itis OK go to 4 v If itis NG repair or replace harness and connector at the faulty section D4 EFI ECU signal checking 1 Connect the SST SST 09842 97209 000 2 With the connectors for the water temperature sensor disconnected set the ignition switch to ON and measure the voltage between the following terminals 1 Between SST54 THW and SST19 E2 SPECIFIED VALUE 4 75 V to 5 25 V V If the result is OK check the connecting state of the connectors at eve
75. ear 1 Remove the sensor by using the oxygen sensor socket CAUTION e Use the tool for handling the connector harness to prevent it from being caught P21E6505T10 B8 15 12 1 4 POINTS OF INSTALLATION 1 Sensor oxygen rear 1 Tighten the sensor by using the oxygen sensor socket CAUTION e Use the tool for handling the connector harness to prevent it from being caught P21E6506T10 12 1 5 OPERATION AFTER INSTALLATION 1 Connect the connector of the oxygen sensor 2 Lift down the vehicle 3 Install the negative terminal of the battery B8 16 13 ENGINE CONTROL SYSTEM 13 1 ARTICLES TO BE PREPARED SST Shape Part No Part name 09842 97209 000 Sub harness EFI computer check 09991 87403 000 Wire diagnosis check 09842 30070 000 Wire EFI inspection 0999187404000 tee angineconitrolsysteminspection 09991 87401 000 eng y H 09268 87701 000 Gauge EFI fuel pressure Instrument Sound scope Electrical tester Oscilloscope Diagnosis Tester WARNING e Driving a vehicle with SST EFI computer check sub harness etc being connected might cause an error operation to occur which is extremely dangerous Make sure that SST has been dis connected before driving the vehicle B8 17 13 2 HANDLING INSTRUCTIONS OF CONTROL SYSTEM 13 2 1 HOW TO USE THE SERVICE MANUAL 1 The method used for assignment of the diagnostic trouble codes and
76. ee EE ficient GEET speed is constant Air condi 30 to 40 PRG voltage FPRG p prg oner OFF No engine load 2000rpm Idle switch posi d A aren ian Display when idle ew is set to ON or When the accelerator pedal ON OFF VTH voltage OFF is fully closed fully opened IDL Air conditioner fe e signal Indicates the input of the air conditioner Air conditioner switch OFF gt ON ACSW voltage signal OFF state gt ON state AC Any of the headlight the de fogger the heater blower or ON e Indicates the conditions of the headlight the radiator fan is set to ON Electric load 7 Each switch DSW the defogger the heater blower and the All of the headlight the de voltade radiator fan fogger the heater blower or 9 OFF the radiator fan are set to OFF When brake pedal is stepped d m D D ON Stop lamp signal Display either stop lamp signal ON or on STP voltage STP OFF When brake pedal is re g OFF leased Vehicle stopped steering ie H S n ON Display either power steering signal ON controlled i f l PST voltage PST or OFF Vehicle stopped steering not OFF controlled B8 147 Major checking Data name Reference items when an Abbreviated Explanations of items Checking condition value abnormality name occurred When idling after the engin Target angle of Indicates the target angle of displace S d gaier tne engine is warmed up O t
77. ehicle is stopped and when the steering ON is operated The vehicle is stopped and when the steering OFF is not operated 4 Stop lamp signal STP The switch condition Displayed data When the brake pedal is stepped on ON When the brake pedal is released OFF Hydraulic power steering equipped vehicle V If the result is all OK check the idling control system Refer to Page B8 91 V If itis NG go to 3 D3 EFI ECU signal checking 1 Connect the SST SST 09842 97209 000 B8 97 2 Said the ignition switch to ON and measure the voltage between the terminals on which the data monitor indicated a malfunction signal 1 Blower between SST42 BLW and SST130 E1 2 Radiator fan between SST54 FAN1 and SST130 E1 3 Air conditioner switch between SST93 ACSW and SST130 E1 4 Power steering switch between SST133 PST and SST130 E1 Hydraulic P S equipped vehi cle 5 Stop lamp between SST43 STP and SST130 E1 SPECIFIED VALUE Check signal Terminal Measuring conditions Reference value er 42 BLW to 130 E1 When the blower switch is set to ON 0 to 0 5V ower E SE When the blower switch is set to OFF Battery voltage When the magnetic clutch is on 1V or less Radiator f 54 FAN1 to 130 E1 E SE E When the magnetic clutch is off Battery voltage f Si When the air conditioner is operating Battery voltage h ACSW to 130 E1
78. eign matters in th ace two times con g control ontrol valve admis e oil passage 2 trips P0012 73 VVT control Delay angle faulty When abnormalities take p secutively in the valve timin An abnormality in the oil c ace two times con g control ontrol valve admis sion of foreign matters in th angle faulty e oil passage Delay 2 trips P0016 62 Chain timing faulty When deviations between the camshaft posi tion sensor signal and the engine rotation sen sor signal are detected 5 times consecutively Extension of the timing chain 5 trips P0016 75 Valve timing faulty When abnormalities take place two times con secutively in the valve timing control 2 trips P0105 31 Manifold absolute pres sure When an abnormality takes place in the signal from the manifold absolute pressure sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 1 trip PO110 43 Intake air temperature sensor When an abnormality takes place in the signal from the intake temperature integral sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 1 trip PO115 42 Coolant temperature sensor short open When malfunction takes place in the signal from the coolant temperature sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system et
79. en the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 54 FAN1 linking the EFI ECU and the relay block connector 3 coil side linking the radiator fan relay 2 Between relay block connector 4 switch side linking the radiator fan relay and the vehicle side harness connector 2 linking the radiator fan motor 3 Between vehicle side harness connector linking the radiator fan motor and the bodyground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK check the radiator fan motor v If itis NG repair or replace harness and connector at the faulty section gt 12 Checking the single unit of the radiator fan really 2 1 Carry out the single unit checking of the radiator fan relay Refer to Page B8 135 SPECIFIED VALUE The radiator fan relay is normal V If the result is OK go to 13 Y If the result is NG replace the radiator fan relay B8 126 13 Checking the EFI ECU signal 2 1 Connect the SST SST 09842 97209 000 2 Carry out the active test radiator fan by using the diagnosis tester 3 Measure the voltage between the following terminals when ON OFF operation is performed 1 Between SST54 FAN1 and SST130 E1 SPECIFIED VALUE Measurement value ON 1V or less OFF Battery voltage V If normal inspect and repair as necessary the harness and connectors linking th
80. ester to the DLC 3 After setting the ignition switch to ON use the diagnoses tester to erase the diagnosis codes 13 9 5 DIAGNOSIS CODE ERASE METHOD ERASURE BY DISCONNECTING THE FUSE 1 Stop the vehicle 2 Setting ignition switch to LOOK disconnect the EFI fuse by pulling it off for 60 seconds or more 3 All codes stored in the memory can be erased by setting the ignition switch to LOCK and by dis connecting the EFI fuse for 60 seconds or more CAUTION e When disconnecting the backup fuse output and confirm the diagnosis codes of other systems and then record it for the sake of the safety NOTE e As a rough standard erasure can be achieved by disconnecting diffuse for approximately 60 sec onds In some cases however it may take more time e Erasure can be also achieved by disconnecting the part supply from the battery or the backup cir cuit such as fusible link The time however in this case required for erasure will be longer B8 30 13 9 6 CONTENTS OF DIAGNOSIS Diagnosis code specified by ISO SAE DTC No Diagnosis items Contents of diagnosis The method for evaluating mal functions Warning indica tion P0010 74 Oil control valve system When an abnormality has occurred to the oil control valve controlling vo tage itrip O P0011 73 VVT control Advance angle faulty When abnormalities take p secutively in the valve timin An abnormality in the oil c sion of for
81. fective Oil control valve Operation defective The engine stalls when pressing on the accelerator Control system Coolant temperature sensor Deviation in the characteristics Camshaft position sensor f Output signal defective Oil control valve Operation defective The engine stalls when releasing the accelerator Intake system Throttle body Operation defective Control system manifold pressure sensor Deviation in the characteristics Engine stops when the air con ditioner is turned on ntake system ISC stepper motor Constantly closed Engine stops but can be restarted Power supply EFI ECU power supply circuit IG switch Poor contacting system l Main relay ntake system ISC stepper motor Constantly closed gnition system lgnition coil Poor contacting Control system manifold pressure sensor Engine speed sensor Poor contacting 4 Defective running B8 40 Malfunction phe Possible causes nomena System Components Malfunction mode Fuel line Fuel filter Clogging Buse E Declining of the flow rate Fuel pump Igniti il Missing ignition Ee i gnition coi issi g igniti Ignition system Spark plug Misfire when accelerat EE EE Ignition timing Misalignment ing Control system Coolant temperature sensor Throttle position sensor Deviation in the
82. from the EFI ECU cannot be read or written when the engine is started B8 103 3 Checking procedure LGT Checking the diagnosis codes again OO JO OO P GO h A Set the ignition switch to LOCK Connect the diagnosis tester Set the ignition switch to ON Erase the diagnosis codes Turn the power of the tester off and then set the ignition switch to LOCK Set the ignition switch to ON Check the diagnosis codes ls code number PO603 83 output V If the code is output proceed to step 2 V If the code is not output proceed to step 3 gt gt 2 Checking the wire harness 1 2 Set the ignition switch to LOCK Check the continuity between the following terminals 1 Between EFI ECU vehicle harness connector 117 SIO2 and immobilizer ECU vehicle harness connector 8 S102 SPECIFIED VALUE Continuity exists v If OK proceed to step 3 v If NG repair or replace the harnesses and connectors that are faulty 3 Checking the immobilizer diagnosis code 1 Set the ignition switch to ON 2 Check the immobilizer diagnosis code Y f the code is not output replace the EFI ECU Refer to Page B8 1 V If the code is output check the immobilizer Refer to Page 14 9 B8 104 13 13 23 U0167 81 IMMOBILIZER SYSTEM COMMUNICATION SYSTEM CODES DO NOT MATCH COMMUNICATION ERROR 1 System diagram S102 DE EFI ECU Immobilizer ECU
83. fuel inlet pipe and the fuel pipe 3 Connect the injector for inspection purposes to discon nected fuel hoses using SST measuring tool and EFI in spection wires see figure SST 09275 87701 000 09842 30070 000 4 Carry out the active test fuel pump by using the diag nosis tester 5 Confirm that the injector injects the fuel when the voltage from the battery voltage is applied to the injector SPECIFIED VALUE The injector injects the fuel CAUTION e Switching of ON or OFF is carried out at the battery side 6 After inspecting injection performance disconnect the battery and measure the volume of fuel that leaks from the injector for one minute SPECIFIED VALUE One drop or less 7 Measure the resistance value between the injector ter minals SPECIFIED VALUE 12 2 Q 20 C 13 15 15 OIL CONTROL VALVE 1 Visually check the operation of the oil control valve when the battery voltage is applied to the connector terminals of the oil control valve Injector M L11E7081ET10 W21E5138T10 The target of the connec tion Positive terminal of the battery 1 OCV Negative battery of the battery 2 OCV CAUTION e Make sure that the battery voltage is applied no more than 1 minute SPECIFIED VALUE The valve operates when the bat tery voltage is applied T11E6217T10 13 15 16 EVAPORATOR PURGE VSV 1 Check the ventila
84. g of diagnosis trouble codes Therefore before using the tester carefully read its instruction manual to understand and familiarize yourself with the functions provided and the method of using these functions 3 Priority in troubleshooting 1 If the priority in troubleshooting for a number of diagnostic trouble codes is given in the diagno sis code flow chart be sure to carry out the troubleshooting by following the priority indicated 2 If the priority is not given follow the priority given below and perform the troubleshooting for each diagnostic trouble code 1 In the case of diagnosis trouble codes other than No P0171 25 No P0172 26 too rich too lean in the fuel system 2 In the case of diagnosis trouble codes of No P0171 25 No P0172 26 too rich too lean in the fuel system B8 18 13 3 SYSTEM WIRING DIAGRAM CG am AAAA se Ss Kb E e S Ses ase AT oO x oc 7 Bs ECU z ke BES cae e AB F a Ek ki O K ECU Es E EN Tz mo R ER ei O a Height mount stop lamp YQ lt 25 a Oil control valve O 2 l 3s Diagnosis lamp z 2 2 Stop lamp lamp R ono D 2 lt oo I W 2 oo ER CS T w gs SN a2 d S Li es ii ES e l Stop lamp switch Stop lamp lamp L le 5 Toar Ge SS Magnet clutch relay o l Rad
85. g the EFI ECU output signal 1 Connect the SST to the vehicle SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST26 10 and SST130 E1 2 Between SST25 20 and SST130 E1 3 Between SST24 30 and SST130 E1 B8 121 4 Between SST18 40 and SST130 E1 Time axis 2ms DIV Voltage axis 10V DIV Condition The air conditioner is turned OFF no electric load applied when the engine is idling The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example to the right SPECIFIED VALUE The battery voltage level changes to OV during fuel injection Vif normal inspect and repair as necessary the har ness and connectors linking the EFl ECU and injecter V If the result is NG check the EFI ECU circuit Refer to Page A1 32 T11E6243T10 13 14 5 CHECKING THE RADIATOR FAN SYSTEM 1 System diagram B8 122 EFI ECU Radiator fan relay ENGINE Ee Radiator fan motor 30A Fuse TURN BACK _ IG switch 10A IG1 Magnet clutch relay Engine coolant temperature sensor W21E5134ES20 Each unit connected vehicle harness side connector e Sch
86. gine and warm it up until the radiator fan starts rotating 3 Read the diagnosis code using the diagnosis tester or an OBD II general purpose scan tool SPECIFIED VALUE P0016 62 Chain timing faulty or POO16 75 Valve timing faulty not output V If the result is OK end of trouble shooting V If the result is NG replace the timing chain Refer to Page B2 7 B8 49 13 13 4 P0105 31 MANIFOLD PRESSURE SENSOR 1 System diagram EFI ECU Manifold absolute pressure sensor E2PM 64 P21E6703S20 manifold pressure sensor vehicle harness connector PIM MoS a cab a H11E6020S10 EFI ECU vehicle harness connector W21E5145S10 2 Output conditions 1 When the signal from the manifold pressure sensor is not continuously output more than the speci fied time 3 Checking points 1 Is the signal from the manifold pressure sensor input into the EFI ECU 2 Is the harness between the manifold pressure sensor and EFI ECU normal 3 Is the power supply voltage of the manifold pressure sensor normal 4 Is the output of the manifold pressure sensor correct B8 50 4 Checking method gt 1 Checking the EFI ECU signal 1 Connect the SST SST 09842 97209 000 2 Set the ignition switch to ON 1 Between SST102 PIM and SST64 E2PM SPECIFIED VALUE
87. harness side connector 38 BAT terminal and the body earth SPECIFIED VALUE Battery voltage 13 11 4 EARTH CIRCUIT CHECK 1 Set the ignition switch to LOCK and disconnect the battery negative terminal 2 Disconnect the connector of EFl ECU and confirm the continuity between the connector terminal on the next ECU connection vehicle harness side and the body earth of the vehicle 1 Between the ECU connected vehicle harness side connector 23 E01 terminal and the body earth 2 Between the ECU connected vehicle harness side connector 130 E1 terminal and the body earth SPECIFIED VALUE Continuity exists 13 11 5 CHECKING THE INJECTOR OPERATION 1 Use a sound scope or a long screw driver to check the injector s operating sound SPECIFIED VALUE Operating sound is provided 13 11 6 CHECKING THE FUEL PRESSURE SIMPLE 1 Start the engine Pinch the fuel hose with your finger and confirm that the fuel pressure pulsation can be felt SPECIFIED VALUE Hose is under the fuel pressure B8 35 13 11 7 SPARK CHECK WARNING e The inspection will cause sparks to be generated which is quite dangerous Make sure no com bustible materials are placed in the surrounding area 1 Warm up the engine 2 Perform fuel pressure release operation Refer to Page B7 1 3 Set the ignition switch to LOCK 4 Disconnect all injector connectors CAUTION This step will terminate fuel injection and prevent damage to the catalytic converter from
88. he ignition coils to the battery B8 84 D4 Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 69 IG1 linking the EFI ECU and the vehicle side har ness connector 3 IG1 linking ignition coil 1 Between vehicle side harness connector 106 IG2 linking the EFI ECU and the vehicle side harness connector 3 IG2 linking ignition coil 1 Between vehicle side harness connector 135 IG38 linking the EFI ECU and the vehicle side harness connector 3 IG3 linking ignition coil 1 Between vehicle side harness connector 68 GA linking the EFI ECU and the vehicle side har ness connector 3 IG4 linking ignition coil 1 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK replace the ignition coil Refer to Page B10 2 V If the result is NG repair or replace the harness and the connector of the malfunctioning section B8 85 13 13 16 P0443 76 EVAPORATOR PURGE VSV 1 System diagram EFI ECU For evaporator Fuse purge VSV Main relay EFI PRG TOD IG switch IG2 Battery 5 L 4 W21E5121ES20 Each unit relay etc connected vehicle harness side connector PRG B es Evaporator purging VSV connected
89. iator fan motor n ono pony EH S DZ RG PENE GL ke D I Tail lamp switch Meter illumination lamp 3 Radiator fan relay i To lt P 1 Alternator P S OIL pressure switch G NH Vehicles equipped with power steering mMm pO G D i Stepper ISC 9 Tail lamp IACB LO G 5 e E E ii g z gt 5 I O e IACBH 28 o Si ACA LO m i 7 Q TS Speed meter taco meter Nq me O EE ICAH 2 D Purge VSV o TI ils af PG o eO a D O E er E S Gs GA 7 Qg 8 2 DECH W T S Manifold absolut 00 CG lanifol lute pressure sensor ae gt En P i O Dich S I E 5 lt Intake air temperature sensor F P relay F P motor H E V el E ZS GEES A E Main relay o d E oO gt g co ignition coil 4 a waro N E Lanne pa ZS DS Steen al Power steering oil pressure switch DI om SO SE Oxygen sensor heater 7 Wl T o A Oe S SE i lt C o p gz a g 2 E O 2 io CH I a dell E P21E6701S45 Immobilizer equipped vehicles 7 Immobilizer non equipped vehicles Rear oxygen sensor equipped vehicles B8 19 13 4 ARRANGEMENT OF ECU TERMINAL W21E5146S10 Terminal Terminal d Terminal Terminal Terminal name g Terminal name number signal number signal 8
90. in relay and the body ground con nector SPECIFIED VALUE Battery voltage Y If normal inspect and repair as necessary the harness and connectors linking the main relay to the body ground connector V If the switch is faulty inspect and repair as necessary the harness and connectors linking the main relay to the battery V If the coil is faulty proceed to step 6 gt gt 6 Wire harness check 2 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between connector 1 coil side linking the fuse box connecting to the main relay and the vehi cle side harness connector 6 IG2 linking the ignition switch Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK check the IG switch Repair if necessary Refer to Page A1 32 v If itis NG repair or replace harness and connector at the faulty section B8 112 13 14 3 CHECKING THE FUEL PUMP SYSTEM 1 System diagram EFI ECU Fuel pump relay FC1 5 O IG switch IG2 139 E1 W21E5131ES20 Immobilizer non equipped vehicles EFI ECU Fuel pump relay FC3 4 Oo IG switch E1 P21E6702ES20 Immobilizer equipped vehicles Each unit connected vehicle harness side connector B8 113 Gauge GaugeQ Nafta ale Pump Pump Fuel pump connected vehiclie harness side connecter
91. ioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example to the right 5 Confirm the following points 1 The waveform cycle becomes shorter as the engine revolution speed rises Lo Le ede Ltt E LLL W21E5141T10 B8 143 6 Ignition signal 1 Connect the SST to the vehicle SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST69 IG1 and SST130 E1 2 Between SST106 IG2 and SST130 E1 3 Between SST135 IG3 and SST130 E1 4 Between SST68 IG4 and SST130 E1 Time axis 100ms DIV Voltage axis 2V DIV Condition The air conditioner is turned OFF no electric load applied when the engine is idling The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example to the right e The ignition signal cannot be checked correctly without using an oscilloscope 3 Confirm the following points 1 O5V pulse is generated 2 The waveform cycle becomes shorter as the engine revolution speed rises T11E6248T10 B8 144 13 17 ECU DATA MONITOR FREEZE FRAME DATA 13 17 1 LIST OF ECU DATA MONITOR FREEZE FRAME
92. ions v If itis OK go to 2 Y If the result is NG check the combination meter Ay Refer to Page J3 8 gt gt 2 Checking the EFI ECU output signal 1 Connect the SST to the vehicle SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST114 SPD and SST130 E1 Time axis 20ms DIV Voltage axis 2V DIV Condition Vehicle traveling at 20km h The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example SPECIFIED VALUE Waveform cycle shortens as en gine RPMs increase when regular waveform is emitted v If itis OK go to 3 V If the result is NG check the EFI ECU circuit Refer to Page A1 32 L Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 114 SPD linking the EFI ECU and the vehicle side harness connector 29 4P_OUT linking the combination meter 2 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector 3 Between vehicle side harness connector 1 S_GND linking the combination meter and the body ground connector Refer to Page A1 32 W21
93. is OK check to confirm if there is any air sucked in from PCV hoses of evaporator purge and the throttle body or the intake system of the intake manifold v If itis NG go to 5 B8 93 D4 Active test 2 1 Carry out the active test ISC by using the diagnosis tester SPECIFIED VALUE The engine condition When open The idling speed is increased 100 steps is selected When closed The idling speed is decreased 10 steps is se The engine is stalled or idling becomes unstable lected Y f the result is OK check to confirm if there is any air sucked in from PCV hoses of evaporator purge and the throttle body or the intake system of the intake manifold V If itis NG go to 5 D5 Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 66 IACALO linking the EFI ECU and the vehicle side harness connector 1 IACALO linking the ISC stepper motor 2 Between vehicle side harness connector 103 IACBLO linking the EFl ECU and the vehicle side harness connector 2 IACBLO linking the ISC stepper motor 3 Between vehicle side harness connector 67 IACAHI linking the EFl ECU and the vehicle side harness connector 3 IACAHI linking the ISC stepper motor 4 Between vehicle side harness connector 104 IACBHI linking the EFl ECU and the vehicle side harness conne
94. ition switch is set to ON O to 0 11V EEN When the engine is idling Pulse generated When the ignition switch is set to ON O to 0 11V eet Sey When the engine is idling Pulse generated When the ignition switch is set to ON O to 0 11V 68 IG4 130 E1 When the engine is idling Pulse generated B8 139 Checking system Terminal Measuring conditions Reference value ISC drive signal 66 IACALO 130 E1 67 IACAHI 130 E1 103 IACBLO 130 E1 104 IACBHI 130 E1 When the engine is idling Pulse generated Power steering signal 133 PST 130 E1 When the oil pressure switch is set to 1V ON 0 to When the oil pressure switch is set to OFE Battery voltage Fuel pump 47 FC3 130 E1 When the fuel pump is stopped Battery voltage When the engine is idling or when crank ing the engine 1 2V or less Starter signal 55 STA 130 E1 When the starter switch is set to ON Battery voltage When the starter switch is set to OFF Around OV Evaporator tempera ture sensor 45 ACEV 116 E21 When the air conditioner is on 0 15 to 4 8V When the air conditioner switch is set to Battery voltage Magnetic clutch relay 94 MGC 130 E1 D HR ON Air conditioner input 93 ACSW 130 E1 2 signal When the air conditio
95. l side linking the main relay and the body ground connec tor 2 Between fuse block connector 2 switch side linking the main relay and the body ground con nector SPECIFIED VALUE Battery voltage Y f normal inspect and repair as necessary the harness and connectors linking the main relay to the body ground connector Y If the switch is faulty inspect and repair as necessary the harness and connectors linking the main relay to the battery V If the coil is faulty inspect and repair as necessary the following parts 3 Between connector 1 linking the fuse box connecting the main relay and the vehicle side har ness connector linking the battery 4 Fuse 5 Ignition Switch B8 118 13 14 4 CHECKING THE INJECTOR SYSTEM 1 System diagram EFI ECU 10 26 HIW Fuse Injector 1 Main relay EFI 20 25 ANO Injector 2 30 24 oe Fuse IG switch ENGINE IG2 4 G 10A Injector 4 130 E1 L W21E5132ES20 Each unit connected vehicle harness side connector B 10 B 20 B 30 B 40 lt x lt x hk Zeck lt D We 402 V2 Injector 1 connected Injector 2 connected Injector 3 connected Injector 4 connected Main relay connected vehicle harness side vehicle harness side vehicle harness side vehicle harness side fuse block side connector connector connector connector connector W21E5133ES10 EFI ECU connected vehicle harness side connector
96. lizer equipped vehicles Immobilizer non equipped vehicles W21E5146S10 Terminal Terminal Terminal Terminal Terminal name Terminal name number signal number signal 96 119 SIO1 DLC SIO terminal 97 N2 Camshaft position sensor 120 98 THW Coolant temperature sensor 121 99 VTH Throttle position sensor 122 100 N1 Engine speed sensor 123 101 VCPM manifold pressure sensor power supply 124 102 PIM manifold pressure sensor 125 103 IACBLO ISC stepper motor 3 126 104 IACBHI ISC stepper motor 4 127 Ge 105 ALT Alternator cutoff control output 128 106 IG2 Ignition coil 2 129 N2 Camshaft position sensor 113 EFI T EFI T check terminal 130 E1 Operation ground 114 SPD Speed signal 131 E2 Sensor ground 115 ACVR A C temperature adjustment volume 132 KNK Knock sensor 116 E21 Body sensor ground 133 PST Power steering oil pressure switch 117 l02 Immobilizer ECU 134 118 REV DLC REV terminal 135 IG3 Ignition coil 3 Rear oxygen sensor equipped vehicles 7 Immobilizer equipped vehicles Immobilizer non equipped vehicles B8 21 13 5 LOCATION OF COMPONENTS
97. m B8 37 13 12 2 TABLE FOR THE LIST OF POSSIBLE CAUSES ACCORDING TO THE PHENOMENA OF MALFUNCTIONS 1 Poor startin g characteristics Malfunction phe Possible causes nomena System Components Malfunction mode EFI ECU power supply circuit Breaking of wires short circuits ERR IG switch system N ing ON Y Main relay GEES Se Engine earth Breaking of wires defective earth system Fuel pump relay No turning ON EEN Fuel line Fuel filter Clogging Fuel aoe SE Injector No injection always injection H Fuel pump No operation Engine user Fuse meltdown Ignition system GE No spark Ignition timing Misalignment Engine speed sensor No NE signal output Control system fs Y Camshaft position sensor Defective output signal Fuel pump relay No turning ON Fuel line Fuel filter Clogging Fuel system TEST SE Injector Leakage no injection always injection Initial ignition oc Fuel pump No operation curring Ignition system Spark plug Misfire No complete Intake system Air hose etc Leak ignition manifold pressure sensor Deviation in the characteristics breaking Control system Coolant temperature sensor the liars short circuiting Camshaft position sensor Output signal defective Oil control valve Defective operation cold Intake system Throttle body Defective opening no opening pos
98. m and record the condition of how the engine check lamp is turned on when the IG switch is set to ON and after the engine is started When the IG ne After the engine switch is set to Judgment ace is started ON b Illuminated Extinguished a acs illuminated Illuminated b R Extinguished Extinguished Cc V In the case of a or b go to 4 V In the case of c carry out the following luck operations If there is no problem replace the combi nation meter 1 Check the harness and the connectors between the battery and combination meter 2 Check the harness and the connectors between the combination meter and EFI ECU 3 Check the power supply system and the earth system of EFI ECU D4 Confirmation and recording of the diagnosis trouble codes 1 Connect the diagnosis tester to the vehicle and confirm and record the diagnosis code and the freeze data NOTE e When shorting the terminals between EFI T 12 and E 4 of DLC confirm and record the diag nosis code output to the engine check lamp within the combination meter V Goto 5 D5 Confirmation of the malfunction phenomenon 1 Confirm the malfunction phenomenon and confirm the condition of the malfunction V Goto D6 gt 6 Erasing diagnosis code 1 Carry out erasing of a diagnosis code V Goto D7 B8 23 D7 Confirm reproduction of the malfunction phenomenon 1 Confirm if it is possible to reproduce the malfunction phenomenon
99. n all items covered by the data monitor B8 149 13 17 2 LIST OF FREEZE FRAME DATA 1 Freeze frame data 1 If the phenomena of the outputted diagnosis code cannot be reproduced check the freeze frame data List of the freeze frame data Item names Abbreviation Unit EE vag o variation Engine coolant temperature ECT Cc 1 Manifold absolute pressure MAP kPa 1 Engine revolution speed RPM rom 1 Vehicle speed VS km h 1 Ignition timing advance ITA degrees 0 1 Intake air temperature IAT C 1 Abs throttle position SSR TP 0 1 Output volt of FR O2 SSR O2FV V 0 001 Short term of FR O2 SSR O2FP 0 1 Total fuel trim bank 1 TFAK Ss 0 001 Battery voltage VPWR V 0 1 ISC learning value DLRN K 0 1 Idle switch position IDL Air conditioner signal AC E Electric load DSW Stop lamp signal STP Power steering signal PST ISC current step position STEP step 1 ISC Duty ration ISC 0 1 Manifold absolute pressure PMVT MPa 0 01 Injection time TAU ms 0 01 B8 150 13 18 ACTIVE TEST CAUTION e Pay attention to the fact that the normal control is not activated during the active test Such as overheating caused by stopping driving of the fan for the radiator or over run caused by the ISC driving e After an active test is completed make sure to confirm that the normal condition has been re sumed Diagnosis
100. ne op erated and the IG switch set to LOCK 2 trips indicates this process should be repeated twice and 5 trips indicates the process should be repeated 5 times e MIL warning lamp e When the O mark is displayed in the MIL column the engine check lamp will light up that diag nosis code number However when the mark is displayed the lamp will not light up that diag nosis code number Therefore it is possible to read out the diagnosis code number by using the diagnosis tester e Diagnosis code with Rear oxygen sensor equipped vehicles only e Diagnosis code with immobilizer vehicles onl y B8 33 13 10 FAIL SAFE FUNCTION 1 When abnormality takes place in the signal from various sensors or malfunctions take place in the control of the oil control valve for the variable valve timing conditions such as engine failure cata lyst overheating may result if the control is continued under such a condition To prevent this the fail safe function uses the values stored in the computer in order to control operations When the malfunction is remedied to the normal condition after an abnormality was detected the fail safe control will be released However the diagnosis result will be stored in the memory List of fail safe function Item Fail safe execution conditions FAIL SAFE SPECIFICATIONS Camshaft position sensor sys When malfunction takes place in the signal The signal from the camshaft
101. ner switch is set to u u 0 to 0 5V OFF When the magnetic clutch relay is on Around OV When the magnetic clutch relay is off Battery voltage When the stop lamp is on Battery voltage Stop lamp OTE TEA When the stop lamp is off O to 0 5V When the tail lamp is on Battery voltage Tail lamp AIL TSE When the tail lamp is off 0 to 0 5V defogger signal 11 DEF 130 E1 When the defogger switch is set to ON Battery voltage When the defogger switch is set to OFF 0 to 0 5V VSV evaporator page 61 PRG 130 E1 When engine revolution speeds is Pulse generated system 54 FAN1 130 E1 system 2000rpm constantly When the blower switch is set to ON Battery voltage SES KE When the blower switch is set to OFF 0 to 0 5V Radiator fan control When the magnetic clutch is on 1V or less When the magnetic clutch is off Battery voltage Variable valve timing control system 20 0CV 19 0CV When the engine is idling Pulse generated Engine speed output 118 REV 130 E1 When the engine is idling Pulse generated Ground Between 131 E2 and body Between 23 E01 and body Between 116 E21 and body Between 130 E1 and body At all times Continuity exists B8 140 13 16 3 OSCILLOSCOPE WAVEFORMS 1 Injector 1 Connect the SST to the vehicle SST 09842 9
102. nesses or relays by hand heat applying hot wind and water giving humidity 3 Furthermore making a speculation on the possible section part that might have caused the mal function and confirmation of the phenomenon by connecting and instruments such as a tester and the like would provide an opportunity at the same time for making judgment of the conformance or nonperformance of the section part 13 8 2 RECHECKING OF THE DIAGNOSIS CODE 1 By checking the diagnosis code after the malfunction phenomenon has been confirmed it can be judged whether the code system that was displayed before the confirmation is still acceptable or not NOTE e The number of vehicle operation that is necessary for confirmation of the diagnosis differs for every code Refer to Page B8 30 2 If a malfunction should occur during checking and an abnormality code is displayed even after the confirmation has been completed carry out troubleshooting according to individual codes 3 When no abnormal code is indicated although the occurrence of malfunction was observed during the confirmation of reproduction of malfunction a malfunction other than those related to the diag nosis system is likely taking place Proceed to the troubleshooting according to malfunctioning phe nomena 4 When no malfunction is observed during the confirmation of reproduction of malfunction and the normal code is indicated at the check of the DTC it is presumed that an abnormali
103. ning Vehicle speed km h Engine speed rom MT Which gear e During turn right curve left curve Other situations State of malfunction indicator lamp MIL e Illuminated or flashing at all times e Illuminated or flashing sometimes e Will not go on Indication of DTC During checking e Normal e Malfunction code e Reading out by using OBD II generic scan tool e Reading out of MIL flashing pattern by shorting terminal T 2nd time e Normal e Malfunction code W21E5155ES40 B8 27 13 8 SYMPTOM CONFIRMATION 13 8 1 CONFIRMATION OF THE MALFUNCTION PHENOMENON 1 In carrying out the trouble shooting the operator cannot find out the cause before actually conform ing the malfunctioning phenomenon For this end it is imperative to reproduce the malfunction phe nomenon by creating conditions and environments similar to the situation where the malfunction took place based on the information obtained by the diagnosis through inquiries 2 As for the phenomenon that is difficult to be reproduced it would be necessary to create the condi tions similar to the running conditions under which the malfunction took place road condition me teorological condition and running condition based on the information obtained by the diagnosis through inquiries For this purpose it is most important to try to reproduce the phenomenon pa tiently by applying external factors such as vibration moving wire har
104. nstant value a A C evaporator temperature sensor signal system Wh en malfunction takes place in the signal from the A C evaporator temperature sensor The air conditioner is shut down Valve timing system Wh en abnormalities take place two times consecutively in the valve timing control The valve timing is set to the most retarded position Stepper motor system for ISC Wh ste en an abnormal signal occurred in the pper motor for ISC Cut off the energizing control for the stepper motor for ISC Cut off the fuel injection Oil control valve system Wh en malfunction takes place in the control voltage for the oil control valve Prohibit the oil control valve energizing con trol Rear oxygen sensor equipped vehicles B8 34 13 11 BASIC CHECK 13 11 1 MEASUREMENT OF THE BATTERY VOLTAGE 1 Measure the battery voltage when the engine is stopped SPECIFIED VALUE 12 to 14V 13 11 2 VISUALLY INSPECT THE CONNECTOR SECTIONS AND CHECK THE CONTACT PRES SURE 1 After the ignition switch is set to LOCK disconnect the negative terminal of the battery 2 Check the connector of EFI ECU Refer to Page A1 32 13 11 3 POWER SUPPLY CIRCUIT CHECK 1 Disconnect the connector of EFI ECU and measure the voltage between the connector terminal on the next ECU connection vehicle harness side and the body earth of the vehicle 1 Between the ECU connected vehicle
105. o 5 degrees intake cam ment of VVT control of the intake cam Electric load OFF with no CA VTT 0 to 50 degrees CA engine load eer OCV voltage wt After the engine is warmed Actual angle of Air intake camshaft actual displacement Moors coe up engine idling O to 5 degrees intake cam angle is displayed Electric load OFF with no CA VT 0 to 50 degrees CA f engine load After engine is warmed up YNT Control auy Display duty rate of the DVVT control and the engine is idling z PIM N1 N2 THW ratio e f A g SC 30 to 55 OCH driving signal Electric load OFF with no voltage DVT engine load After engine is warmed u TVVT angle con 9 EE Pi and the engine is idling 32 to 42 de verted val Display VVT zero point learning value S i one N1 N2 voltage Electric load OFF with no grees VTB j engine load After engine is warmed up and the engine is idling Electric load OFF with no Poop step ISC current s s Step number of the current step position engine load ISC stepper step position E SE STEP of the ISC stepper motor is displayed After engine is warmed up motor voltage and the engine is idling Electric load ON with no engine load 50 to 115step When idling after the engine is warmed up Indicates the duty ratio of the ISC driving Air conditioner set to OFF 61014 VC voltage ISC Duty ration 3 S o ISC signal with no engine load applied
106. oad applied when the engine is idling The condition under which the air conditioner is turned OFF and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF V If the result is OK it is possible that the system has returned to the normal condition Therefore leave the system as it is to observe the condition for a while V If itis NG go to 2 gt gt 2 Data monitor 2 1 Read out the data monitor ISC step by using the diagnosis tester SPECIFIED VALUE The engine condition Displayed data a Where the engine is idling after it is 6 or less b warmed up 7 to 50 CG Head light OFF the air conditioner 51 or more OFF neutral The condition under which the air conditioner is turned OFF and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF V Inthe case of a go to 3 V In the case of b go to 4 V In the case of c check PCV the hoses and the throttle body for evaporator purge the intake sys tem of the intake manifold for clogging D3 Active test 1 1 Carry out the active test ISC by using the diagnosis tester SPECIFIED VALUE The engine condition When closed The idling speed does not change or is increased a 10 steps is se little lected When open The idling speed is increased 100 steps is selected Y If the result
107. or vehicle harness connector THA a Gg TAZ H11E6026S10 EFI ECU vehicle harness connector W21E5145S10 2 Output conditions 1 When the signal from the intake temperature sensor is not continuously output more than the speci fied time after the engine is started 3 Checking points 1 Is the signal from the intake air temperature sensor input into the EFI ECU 2 Is the harness between the intake air temperature sensor and EFI ECU normal 3 Is the output of the intake temperature sensor correct B8 52 4 Checking method gt 1 Checking the EFI ECU signal 1 Connect the SST SST 09842 97209 000 2 Set the ignition switch to ON 1 Between SST65 THA and SST131 E2 SPECIFIED VALUE 0 15 to 4 85 V changes according to the intake air temperature Y If OK check the EFI ECU circuit Refer to Page A1 32 v If NG proceed to step 2 gt gt 2 Checking the wire harness continuity 1 Check the continuity between each of the following terminals 1 Between sensor vehicle harness connector 1 THA and EFI ECU vehicle harness connector 65 THA 2 Between sensor vehicle harness connector 2 E2 and EFI ECU vehicle harness connector 131 E2 SPECIFIED VALUE Continuity exists V If OK proceed to step 3 v If NG repair the harness and connectors L Checking
108. ors 1 Between SST62 VC and SST130 E1 2 Between SST101 VCPM and SST130 E1 SPECIFIED VALUE 4 75 V to 5 25 V V If normal the EFI ECU power supply system is operating normally V If the result is NG go to 3 Refer to Page A1 32 gt gt 3 Wire harness check 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 27 B1 linking the EFI ECU and connector 4 on the fuse block connecting to the main relay 2 Between vehicle side harness connector 38 BAT linking the EFl ECU and connector 2 on the fuse block connecting to the main relay 3 Between fuse block connector 2 linking the main relay and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists v If itis OK go to 4 V If itis NG repair or replace harness and connector at the faulty section D4 Checking the single unit of the main relay 1 Carry out the single unit checking of the main relay Refer to Page B8 135 SPECIFIED VALUE The main relay is normal V If itis OK go to 5 V If the result is NG replace the main relay B8 111 Zb Main relay voltage check 1 Disconnect the main relay 2 Measure voltage between each terminal while IG SW is set to ON 1 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector 2 Between fuse block connector 2 switch side linking the ma
109. ositions SPECIFIED VALUE No deviation existing V If the result is OK check the EFI ECU circuit Refer to Page A1 32 V If the result is NG reassemble the camshaft Refer to Page B2 14 B8 48 13 13 3 P0016 62 CHAIN TIMING FAULTY P0016 75 VALVE TIMING FAULTY 1 No P0016 62 output condition 1 When deviations between the camshaft position sensor and the engine revolution sensor have been detected 5 times consecutively 2 No P0016 75 output condition 1 Inspect when valve timing control errors occur twice in a row 3 Checking points 1 Timing chain stretch 2 Timing chain for assembling 4 Check procedure gt gt 1 Timing chain for assembling checking 1 Check the timing chain for assembling Refer to Page B2 7 SPECIFIED VALUE Assemble is not wrong V If the result is OK go to 2 V If the result is NG reassemble the timing chain and go to 3 Refer to Page B2 7 gt gt 2 Confirmation test 1 1 Carry out erasing of a diagnosis code 2 Start the engine and warm it up until the radiator fan starts rotating 3 Read the diagnosis code using the diagnosis tester or an OBD II general purpose scan tool SPECIFIED VALUE P0016 62 Chain timing faulty or POO16 75 Valve timing faulty not output V If the result is OK end of trouble shooting V If the result is NG check the EFI ECU circuit Refer to Page A1 32 gt 3 Confirmation test 2 1 Carry out erasing of a diagnosis code 2 Start the en
110. pm G SW ON engine stopped 0 EE Display duty rate of the VSV for evapora ost SE EE Purge output EE EEN speed is constant Air condi 0 to 100 PRG voltage EVAP purg gna tioner OFF No engine load 2 2000rpm Battery voltage f Power source ON 11to13V VPWR Indicates the battery voltage G SW ON engine stopped to13 voltage Total fuel trim Indicates the compensation amount After the engine is warmed Intake system compensation time for the fuel basic fuel system bank 1 SEL een up at 3000rpm 0 74 to 1 49 injection amount injection time e ignition system TFAK x with no engine load applied as a coefficient exhaust system Abs throttle po l When the accelerator pedal i VTH sition SSR Indicates the Eu of the throt is fully closed 0 to 1 6 SE TP l IG SW ON ISC learning When idling after the engine value Indicates the ISC value of learning is warmed up O to 20 SR DLRN motor voltage Vehicles with rear oxygen sensor B8 146 Major checking Datanarne Reference items when an Abbreviated Explanations of items Checking condition value abnormality name occurred IDEN CON nad Indicates the corrected angle of dis When idling after the engine O to 3 degrees vance angle RER R KNK voltage AKNK placement when knocking is generated is warmed up CA IG SW ON engine stopped 0 EE coer Indicates the feedback correction coeffi E e
111. position sensor tem from the camshaft position sensor is set to a constant value Knock sensor signal system Wen abnormality takes place in the signal Ignition timing is retarded from the knock sensor Rear oxygen sensor system When a malfunction occurs in the signal from Set the feedback control to the open control the rear oxygen sensor Manifold absolute pressure When a malfunction occurs in the signal from The manifold absolute pressure is estimated sensor signal system the intake manifold pressure sensor by the throttle opening angle and the engine revolution speed When abnormality occurs in the signal from the throttle position sensor the signal from the manifold absolute pressure sensor is set to the constant value If both the throttle opening angle and engine speed exceed their set values the fuel is cut Throttle position sensor sys tem Wh en abnormality takes place in the signal from the throttle position sensor The signal from the throttle position sensor is set to a constant value Coolant temperature sensor system Wh en malfunction takes place in the signal from the coolant temperature sensor The signal from the water temperature sensor s set to a constant value Intake air temperature sensor signal system Wh en a malfunction occurs in the signal from the intake air temperature sensor The signal from the intake temperature sensor set to a co
112. ry section V If the result is NG check the EFI ECU circuit Refer to Page A1 32 D5 Single unit checking of the water temperature sensor 1 Carry out single unit checking of the water temperature sensor Refer to Page B8 129 SPECIFIED VALUE The water temperature sensor is normal V If the result is OK check the connecting state of the connectors at each section or the installation condition of the water temperature sensor V If the result is NG replace the water temperature sensor Refer to Page B8 5 B8 56 13 13 7 P0120 41 THROTTLE POSITION SENSOR SIGNAL 1 System diagram EFI ECU Throttle position sensor W21E5110ES20 Throttle position sensor connected vehicle harness side connector EFI ECU connected vehicle harness side connector H11E6022S10 W21E5145S10 2 Output conditions 1 When the signal from the throttle position sensor is not output for a certain length of time consecu tively after the engine is started 3 Checking Points 1 Signal from throttle position sensor input to the EFI ECU 2 Harness and connectors linking the throttle position sensor and EFI ECU 3 Power supply voltage for throttle position sensor 4 Output signal of throttle position sensor 5 EFl ECU B8 5 4 Check procedure gt 1 Data moni
113. s ON Blower switch Air hose etc Intake system Cloggin y Throttle body gging f Manifold absolute pressure sensor ee A1 Idling speed is Deviation in the characteristics Go Coolant temperature sensor Stop lamp switch Tail lamp switch Blower switch No turning ON When idling hunt ing takes place Intake system Air hose etc Throttle body Leak ISC stepper motor Always open Control system Manifold absolute pressure sensor Deviation in the characteristics Camshaft position sensor Output signal defective Oil control valve Operation defective Unstable idling Fuel system Injector Leakage no injection y Fuel pump Operation defective Intake system Throttle body Sucking in La Ignition coil Poor contacting Ignition system Spark plug Misfire Control system Manifold absolute pressure intake tempera ture integral sensor Front oxygen sensor Rear oxygen sensor Defective operation defective contact B8 39 3 Engine stalled Malfunction phe nomena Possible causes System Components Malfunction mode After starting the engine it stops Fuel system Fuel pump relay No turning ON Fuel line Fuel filter Clogging Fuel pump No operation Control system Coolant temperature sensor Deviation in the characteristics Camshaft position sensor Output signal de
114. s and connector at the faulty section gt gt 8 Checking the single unit of the radiator fan relay 1 Carry out the single unit checking of the radiator fan relay Refer to Page B8 135 SPECIFIED VALUE The radiator fan relay is normal V If the result is OK go to 9 V If the result is NG replace the radiator fan relay B8 125 D9 Checking the EFI ECU signal 1 1 Connect the SST SST 09842 97209 000 2 Carry out the active test radiator fan by using the diagnosis tester 3 Measure the voltage between the following terminals when ON OFF operation is performed 1 Between SST54 FAN1 and SST130 E1 SPECIFIED VALUE Measurement value ON 1V or less OFF Battery voltage V If the result is OK go to 10 V If the result is NG check the EFI ECU circuit Refer to Page A1 32 gt 10 Checking the radiator fan relay voltage 1 When the ignition switch is set to ON measure the voltage between each of the following terminals 1 Between the radiator fan relay connected vehicle harness side connector 1 and the body earth 2 Between the radiator fan relay connected vehicle harness side connector 2 and the body earth SPECIFIED VALUE Battery voltage V If the result is OK go to 11 v If faulty inspect and repair as necessary the harness and connectors linking the radiator fan relay with the battery gt gt 11 Checking the wiring harness 2 1 Check the wiring harness betwe
115. s and connectors linking sensors and switches to the EFI ECU 4 ISC stepper motor 5 EFI ECU B8 96 3 Check procedure gt gt 1 Data monitor 1 1 Warm up the engine 2 Read out the data monitor Engine revolution speed in the neutral by using the diagnosis tester SPECIFIED VALUE Displayed data When the electric load is ON or when 750450 the power steering is operated When the air conditioner is ON 90077 The electric load ON refers to a condition that any of the headlight the blower or radiator fan is turned ON The air conditioner ON refers to a condition that all of the air conditioner switch ACSW the blower switch BLW and the magnetic clutch MGC are turned ON V If the result is OK it is possible that the system has returned to the normal condition Therefore leave the system as it is to observe the condition for a while V If itis NG go to 2 D2 Data monitor 2 1 Read out the following data by using the diagnosis tester 1 Electric load DSW The switch condition Displayed data Headlight blower ON or the radiator fan is ON Headlight blower OFF and the radiator fan are all OFF 2 Air conditioner signal AC The switch condition Displayed data The air conditioner switch ON ON The air conditioner switch OFF OFF 3 Power steering signal PST The steering condition Displayed data The v
116. s rotating Air conditioner ON The air conditioner switch ACSW blower switch BLW magnet clutch MGC are all set to ON V Inthe case of a go to 3 V Inthe case of b go to Y8 V In the case of c go to 12 Z Confirmation of the operating status of the radiator fan 1 1 Confirm the operating status of the radiator when the air conditioner is set to OFF ON when the engine is cold SPECIFIED VALUE The air conditioning condition The radiator fan condition OFF ON Stopped Rotating Air conditioner ON The air conditioner switch ACSW blower switch BLW magnet clutch MGC are all set to ON V If itis OK go to 5 V If itis NG go to gt 4 D4 Checking the magnet clutch operation 1 Check that the magnet clutch operates normally when the air conditioner is turned ON SPECIFIED VALUE The magnet clutch is set to ON V If the result is OK check the EFI ECU circuit Refer to Page A1 32 V If the result is NG carry out the checking of troubleshooting according to malfunction phenomena in the air conditioner system the compressor clutch does not turn on Refer to Page K1 3 B8 124 GB Checking the radiator fan operating status 2 1 Read out the data monitor water temperature by using the diagnosis tester 2 Confirm the operating status of the radiator when the air conditioner is set to OFF and the coolant temperature 80 C or less 100
117. s set to ON after the engine is started 3 Checking Points 1 Signal from air conditioner evaporator temperature sensor that is input to the EFl ECU 2 Harness and connectors linking air conditioner evaporator temperature sensor and the EFI ECU 3 Output of air conditioner evaporator temperature sensor 4 EFI ECU B8 101 4 Check procedure GI EFI ECU signal checking 1 1 Connect the SST SST 09842 97209 000 2 With the ignition switch set to ON measure the voltage between the following terminals 1 Between SST45 ACEV and SST116 E21 SPECIFIED VALUE 0 15 to 4 8 V varies according to the temperature V If it is OK go to 4 v If itis NG go to 2 gt gt 2 Checking the single unit of the air conditioner evaporator temperature sensor 1 Carry out the single unit checking of the air conditioner evaporator temperature sensor Refer to Page B8 132 SPECIFIED VALUE The air conditioner evaporator sensor is normal V If itis OK go to 3 Y If the result is NG replace the air conditioner evaporator temperature sensor L Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 45 ACEV linking the EFl ECU and the vehicle side harness connector 1 ACEV linking the air conditioner evaporator temperature sensor 2 Between vehicle side harness connector 116 E21 linking the EFl
118. s the same value as the sur rounding temperature 20 C Carry out the measurement after waiting 1 hour with the relay turned OFF with the temperature main tained at the surrounding temperature of 20 C 3 Confirm that there is no continuity existing between ter minals other than between terminals 1 and 3 at the relay side 4 When the battery voltage is applied to terminals 1 and 3 at the relay side confirm that the continuity exists be tween terminals 2 and 4 at the relay side W11E3059T10 B8 137 13 16 ECU INPUT OUTPUT SIGNAL CHECK 13 16 1 CHECKING METHOD WARNING e Driving a vehicle with SST EFI computer check sub harness etc being connected might cause an error operation to occur which is extremely dangerous Make sure that SST has been dis connected before driving the vehicle 13 16 2 SPECIFIED VALUE FOR INPUT OUTPUT SIGNAL B8 138 Checking system Terminal Measuring conditions Reference value Power supply 27 B1 130 E1 When the ignition switch is set to ON Battery voltage Manifold pressure sen sor 38 BAT 130 E1 At all times 101 VCPM 64 E2PM When the ignition switch is set to ON 4 75 to 5 25V When the ignition switch is set to ON 31 to A IN 102 PIM 64 E2PM atmospheric pressure After the engine is started Changes according to the opening of the accelerator
119. sible j Deviation in the characteristics breaking period Control system Coolant temperature sensor Ee the liars short circuiting Hot Fuel system Injector Leak Difficulty period Intake system ISC stepper motor Defective opening no opening possible in starting Fuel pump relay No turning ON Fuel system Fuel line Fuel filter Clogging At all Injector Leak times j Ignition system Spark plug Smoldering intake system ISC stepper motor Defective opening Air hose etc Leak It the ignition sw the engine block i itch is set to ON when the connection between the engine earth s defective the E G fuse may sometimes melt down between 130 E1 connecting earth and 2 Idling defective B8 38 Malfunction phe nomena Possible causes System Components Malfunction mode Fast idle not work ing Intake system ISC stepper motor Defective opening no opening possible Control system Coolant temperature sensor Breaking of wires short circuits Intake system Air hose etc Leak Throttle body Closing defective ISC stepper motor Always open Manifold absolute pressure sensor Deviation in the characteristics breaking Control system ro Spoedig Coolant temperature sensor the liars short circuiting 9 Throttle position sensor Deviation in the characteristics Control system Stop lamp switch Tail lamp switch Alway
120. sion takes place Poor starting e Hard starting cold engine hot engine always e No cranking takes place e Explosion is incomplete although initial explosion takes place Other e Fast idling ineffective Faulty idling e Idling speed too high e Idling speed too low e Idling unstable cold engine hot engine always Other Hesitation during start during acceleration during deceleration during a certain period Knocking Poor drive ability Backfire Lack of power Poor acceleration e Poor blow e Other During idling during warming up after warming up e At time of starting e During running Engine stall e Immediately after vehicle stops Re start possible Re start impossible e Under loaded state Air conditioner electric load power steering From when malfunction has started e Since vehicle was purchased as anew car e Recently since what year month Frequency of occurrence s At all times Under a certain condition Sometimes e At all times Meteorological conditions Weather e Fine e Cloudy Rain e Snow Other Temperature e Temperature about C Spring summer autumn winter Engine condition e When cold After warming up e During warming up Coolant temperature about C Road e Urban district Suburb e Highway e Mountainous road Uphill downhill e No relation e During racing under no load Driving conditions e During run
121. ss check 2 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 50 FC1 linking the EFl ECU and connector 3 on the fuse block connecting fuel pump relay 2 Between EFI ECU vehicle harness connector 47 FC3 and fuel pump relay fuse block connec tor 3 immobilizer equipped vehicles SPECIFIED VALUE No abnormality exists Y If the result is OK check the EFI ECU circuit Refer to Page A1 32 V If itis NG repair or replace harness and connector at the faulty section gt gt 11 Wire harness check 3 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between connector 2 switch side linking the fuse box connecting the fuel pump relay and connector 4 the fuse box connecting the main relay SPECIFIED VALUE No abnormality exists V If itis OK go to 12 Refer to Page A1 32 V If itis NG repair or replace harness and connector at the faulty section B8 117 12 Checking the single unit of the main relay 1 Carry out the single unit checking of the main relay Refer to Page B8 135 SPECIFIED VALUE The main relay is normal v If itis OK go to 13 V If the result is NG replace the main relay gt 13 Main relay voltage check 1 Disconnect the main relay 2 Measure voltage between each terminal while IG SW is set to ON 1 Between fuse bloke connector 1 coi
122. ss side connector 20 OCV and the oil control valve connected vehicle harness side connector 1 OCV 2 Between EFI ECU connection vehicle harness side connector 19 OCV and the oil control valve connected vehicle harness side connector 2 OCV Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If it is OK go to 7 V If it is NG repair or replace harness and connector at the faulty section D4 Checking the single unit of the oil control valve 1 Carry out the single unit checking of the oil control valve Refer to Page B8 133 SPECIFIED VALUE Oil control valve normal V If the result is OK go to 5 V If the result is NG replace the oil control valve Refer to Page B8 8 D5 Checking the single unit of the DVVT controller 1 Carry out the single unit checking of the camshaft timing sprocket Ay Refer to Page B2 14 SPECIFIED VALUE Cam shaft timing sprocket Ay normal V If the result is OK go to 6 V If the result is NG replace the camshaft timing sprocket Ay Refer to Page B2 14 B8 47 D6 Oil passage checking 1 Check the passage of the engine oil SPECIFIED VALUE No clogging V If the result is OK go to 7 V If the result is NG repair the malfunctioning section of the oil passage D7 Camshaft gear deviation checking 1 Inspect deviation between the cam shaft timing sprocket Ay and the No 1 camshaft timing sprocket using the matchmark p
123. t conditions are not executed correctly these malfunctions cannot be detected SPECIFIED VALUE P0136 22 Rear oxygen sensor signal is not output V If OK the troubleshooting procedure is complete v If NG perform the troubleshooting procedure again starting from step gt gt 1 B8 68 13 13 11 P0171 25 FUEL SYSTEM LEAN FAULTY P0172 26 FUEL SYSTEM RICH FAULTY 1 System diagram EFI ECU Fuel pump relay FCA 6 O IG switch IG2 d FIL 10 26 Battery a et 20 30 40 Injector 4 W21E5113ES20 Each unit relay etc connected vehicle harness side connector E e R Ca 1X2 1X2 Gauge GaugeQ e9 A Injector 1 connected vehicle Injector 2 connected vehicle WG harness side connector harness side connector 34 B 40 Pump Pump B 30 gt et y 7 12 WEEN Fuel pump connected Fuel pump relay Main relay vehicle harness side connected fuse connected fuse connector block side connector block side connector Injector 3 connected vehicle Injector 4 connected harness side connector vehicle harness side connector W21E5114ES10 EFI ECU connected vehicle harness side connector W21E5145S10 2 P0171 25 output condition 1 When the calibration coefficient for one of the factors lean air fuel ratio is fixed during air fuel ra
124. t to OFF Pulse generated by the duty control NOTE e VSV for the evaporator purge will operate only during air to fuel ratio feedback V If the result is OK replace the VSV for the evaporator purge V If the result is NG check the EFI ECU circuit Refer to Page A1 32 B8 89 13 13 17 P0500 52 VEHICLE SPEED SENSOR SIGNAL SYSTEM 1 System diagram EFI ECU Combination meter SPD maai 4P_OUT Speed signal 28 SPEED 730 E1 S_GND W21E5142ES20 Combination meter connected vehicle harness side connector S_GND SPEED 4P_OUT W21E5143S10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 When a condition in which the vehicle speed reached O km h lasted for a certain length of time within the setting range of the engine speed at deceleration during fuel cutting 3 Checking Point 1 Harness and connectors linking combination meter and the EFI ECU 2 Combination meter 3 EFl ECU 4 Check procedure B8 90 gt 1 Data monitor 1 Read out the data monitor Vehicle speed by using the diagnosis tester SPECIFIED VALUE The engine condition Displayed data Ignition switch on and engine stopped O km h Traveling at fixed speed No major fluctuat
125. tester items Contents control condition ISC Control between ISC stepper motor 100 step open side and 10 Vehicle stopped engine is step close side idling Fuel pump Control of ON driving or OFF stop of the fuel pump Purge VSV Control of ON energized or OFF not energized to the purge VSV Radiator fan Control of ON driving and OFF stop of the radiator fan Terminal T Control of ON short circuit and OFF release of T terminal
126. the intake air temperature sensor 1 Check the intake air temperature sensor Refer to Page B8 129 Y If OK check whether each connector is properly connected v If NG replace the intake air temperature sensor Refer to Page B8 6 B8 53 13 13 6 P0115 42 COOLANT TEMPERATURE SENSOR SHORT OPEN 1 System diagram EFI ECU Engine coolant temperature sensor THW 98 E2 W21E5108ES20 Water temperature sensor connected vehicle harness side connector el 112 W21E5109S10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 When the signal from the water temperature sensor is not output consecutively for a certain length of time after the engine is started 3 Checking Points 1 Signal from water temperature sensor input to the EFI ECU 2 Harness and connectors linking the water temperature sensor and EFI ECU 3 Water temperature sensor output signal 4 EFI ECU B8 54 4 Checking procedure D1 Data monitor 1 Use diagnosis tester to read the data monitor water temperature Water temperature ECT Displayed data Possible causes of the malfunction a No change from 40 C Possibility of wire breaking within the water temperature sensor system b No change from 140 C
127. the normal condition Therefore leave the system as it is to observe the condition for a while V If itis NG go to 2 gt gt 2 Checking the wire harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 97 N2 linking the EFl ECU and the vehicle side harness connector 1 N2 linking the engine RPM sensor 2 Between vehicle side harness connector 129 N2 linking the EFI ECU and the vehicle side harness connector 2 N2 linking the engine RPM sensor 3 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If itis OK go to S3 V If the result is NG repair the malfunctioning harness and the connectors or replace them with new items L Checking the single unit of the camshaft position sensor 1 Carry out the single unit checking of the camshaft position sensor Refer to Page B8 129 SPECIFIED VALUE The camshaft position sensor is normal V If it is OK go to 4 Y If the result is NG replace the camshaft position sensor Refer to Page B8 3 B8 81 D4 Checking the cam shaft 1 Visually check the signal rotor section of the cam shaft for any missing teeth or deformation SPECIFIED VALUE No missing teeth or deformation V If the result is OK check the connecting status of the connec
128. tinued for several seconds 3 Checking Points 1 Signal from the engine RPM sensor input to the EFI ECU 2 Harness and connectors linking the engine RPM sensor to the EFI ECU 3 Engine RPM sensor output signal 4 EFI ECU B8 77 4 Check procedure GI Checking the EFI ECU signal 1 Connect the SST SST 09842 97209 000 2 Use an oscilloscope to measure the waveform emitted from the following connector 1 Between SST68 N1 and SST100 N1 Time axis 10ms DIV Voltage axis 2V DIV Condition The air conditioner is turned OFF no electric load applied when the engine is idling The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF NOTE e Unable to identify waveform with the form shown in the figure one example to the right SPECIFIED VALUE Waveform cycle shortens as en gine RPMs increase when regular waveform is emitted V If the result is OK check the EFI ECU circuit Refer to Page A1 32 W21E5140T10 v If itis NG go to 2 gt gt 2 Checking the wire harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 63 N1 linking the EFl ECU and the vehicle side harness connector 1 N1 linking the engine R
129. tio feedback 3 P0172 26 output condition 1 When the calibration coefficient for the other factor rich air fuel ratio is fixed during air fuel ratio feedback B8 69 4 Checking Points 1 Fuel pressure 2 PCV valve 3 Injector 4 Ignition system 5 Front oxygen sensor 6 EFl ECU 5 Check procedure D1 Front oxygen sensor signal checking 1 Connect the SST SST 09842 97209 000 2 Start the engine and keep it running at 3000 rpm for 4 minutes to activate the front oxygen sensor 3 Use oscilloscope to monitor waveform output from the following connector 1 Between SST22 OX1 SST130 E1 Time axis 200ms DIV Voltage axis 500mvV DIV Condition The Air conditioner set to OFF no electric load applied engine speed held at 3000 rom The condition under which the air conditioner is turned OFF the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all set to OFF T11E6241T10 NOTE e Unable to identify waveform with the form shown in the figure one example SPECIFIED VALUE The 01V waveform is emitted when the front oxgen sensor is ac tivated NOTE e The signal from the front oxygen sensor cannot be checked for the correct output without using an oscillo scope V If itis OK go to 2 V If the result is NG go to 6 gt 2 PCV valve system checking 1 Carry out checking of the PCV valve and hoses Refer to Page A1 14 SPECIFIED VALUE
130. tion between the ports SPECIFIED VALUE No ventilation 2 Check the ventilation between the ports when the battery voltage is applied to the connectors on the VSV side for evaporator purge SPECIFIED VALUE Ventilation existing 3 Measure the resistance between the following terminals 1 Between 1 PRG and 2 B SPECIFIED VALUE 30 to 34Q 20 C B8 134 From charcoal canister To intake manifold W21E5122ET10 T11E6218T10 B8 135 13 15 17 RADIATOR FAN RELAY RAD EFI MAIN RE LAY MGC FUEL PUMP RELAY F P 1 Check if the relay operates when the ignition switch is set to ON by means of sound and vibration WARNING e Do not touch the relay with your hand as it may be come hot during operation 2 Measure the resistance between the relay side terminals 1 and 3 SPECIFIED VALUE 131 to 230 Q at 20 C HU NOTE e Carry out the measurement when the temperature in side the relay reaches the same value as the sur rounding temperature 20 C Carry out the measurement after waiting 1 hour with the relay turned OFF with the temperature main tained at the surrounding temperature of 20 C 3 Confirm that there is no continuity existing between ter minals other than between terminals 1 and 3 at the relay side 4 When the battery voltage is applied to terminals 1 and 3 at the relay side confirm that the
131. tor 1 2 3 4 5 6 Main relay connected fuse block side connector Nez IG switch connected vehicle harness side connector W21E5149ES10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Checking point 1 Power supply system for the EFI ECU NOTE e f the sensor system power supply 5 V is short circuited to the earth side the ECU circuit pro tection function may temporarily shut down the power supply of the EFl ECU For this reason be sure to carry out checking of the sensor system power supply circuit also B8 110 3 Check procedure D1 EFI ECU voltage check 1 Disconnect the connector on the EFI ECU side and measure the voltage between each of the termi nals with the ignition switch set to ON 1 Between the ECU connected vehicle harness side connector 27 B1 and the ECU con nected vehicle harness side connector 130 E1 2 Between the ECU connected vehicle harness side connector 38 BAT and the ECU connected vehicle harness side connector 130 E1 SPECIFIED VALUE Battery voltage V If it is OK go to 2 V If the result is NG go to 3 gt gt 2 Inspect power supply voltage for EFI ECU sensor 1 Connect the SST SST 09842 97209 000 2 Measure the voltage between the following connect
132. tor 1 Read from the data monitor for relative throttle position sensor using the DS I SPECIFIED VALUE Condition of the accelera Displayed data tor pedal Fully closed 0 to 20 Fully opened 70 to 90 Totally closed totally It varies in proportion to the throttle lever opened opening Y f the result is OK it is possible that the system has returned to the normal condition Therefore leave the system as it is to observe the condition for a while v If itis NG go to 2 gt gt 2 Checking the signal unit of the throttle position sensor 1 Disconnect the connector of the throttle position sensor and carry out the single unit checking of the throttle position sensor Refer to Page B8 131 SPECIFIED VALUE The throttle position sensor is normal V If itis OK go to 3 Y Replace throttle position sensor if faulty Refer to Page B8 9 D3 Throttle position sensor voltage checking 1 Disconnect the connector of the throttle position sensor 2 With the ignition switch set to ON measure the voltage between the following terminals 1 Between the throttle position sensor connected vehicle harness side connector 1 VC and body earth SPECIFIED VALUE 4 5 to 5 5V v If itis OK go to 4 V If the result is the NG check the EFI ECU circuit Refer to Page A1 32 B8 58 D4 Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires an
133. tors at each section or the installa tion condition of the camshaft position sensor V If the result is NG replace the cam shaft B8 82 13 13 15 P0350 16 IGNITION SYSTEM PRIMARY 1 System diagram EFI ECU D Fuse IG switch Fuse Ignition coil 1 ENGINE IG2 AM2 10A 30A Ze Cash lt d Ignition coil 2 GZ Cal O 0000 V V V V Spark Ignition coil 3 plug r reit Ignition coil 4 IG4 68 Ger ach Battery El W21E5120ES20 Ignition coil connected vehicle harness side connector ead a EEN SCH TOEO Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 W21E5152ES10 EFI ECU connected vehicle harness side connector W21E5145S10 2 Output conditions 1 When the ignition signal is not outputted consecutively for a certain length of time after the engine is started 3 Checking Points 1 Ignition coil power supply voltage 2 Harness and connectors linking the ignition coil to the EFI ECU 3 Spark from spark plugs B8 83 4 Check procedure gt 1 Spark check 1 Check the spark check Refer to Page B8 35 SPECIFIED VALUE Sparks are generated Y If the result is OK the ignition system is normal v If itis NG go to 2
134. ts E Air conditioner set to OFF SE Ignition timing Indicates the ignition timing of the first f 3 IG1 voltage g with no engine load applied advance cylinder Wher the eiaineiis TUhni Each sensor ITA BTDC63 5 ATDC64 degrees 9 i 9 voltage at a certain speed air condi K 8 SE b 20 to 40 de tioner OFF with no engine Ges load applied g 2000rpm Equivalent to Ignition switch set to ON the surrounding e Indicate the intake air temperature SE E THA voltage E 11 140 C IAT ee short circuited 310140 When the sensor is g short circuited ae g When the engine is running Output volt of FR Indicates the output voltage of the front at a certain speed with no O2 SSR oxygen sensor engine load applied O to 1 0V OX1 voltage O2FV 0 to 1 275V 2500rpm 7 When the engine is running Short term of FR Indicates the feedback compensation ata certain speed with n O2 SSR coefficient of the front oxygen sensor En e applied 20 to 20 OX1 voltage O2FP 100 to 99 2 2500rpm When the engine is running Output volt of RR Indicates the output voltage of the rear ata c rtain speed Guin no O2 SSR oxygen sensor Eer Ge applied O to 1 0V OX2 voltage O2FV 0 to 1 275V 2500rpm 8 When the engine is running Short term of RR Indicates the feedback compensation at ace main speed witi no O2 SSR coefficient of the rear oxygen sensor engine e applied 20 to 20 OX2 voltage O2FP 100 to 99 2 2500r
135. ty such as poor contacts at the harnesses and connectors occurred in the past but now they are functioning prop erly Check the harnesses and connectors of those systems that was indicated before the confirma tion of reproduction of the malfunctioning phenomenon 13 9 CONFIRMATION RECORD AND ERASURE OF DIAGNOSIS CODE 13 9 1 OUTLINE 1 When any abnormality code of the diagnosis is indicated it is necessary to confirm the relationship with the reproduced malfunction phenomenon by ascertaining whether the system malfunction has occurred in the past or it still persists up to the present To this end the diagnosis code should be indicated twice i e before and after the confirmation of the phenomenon 13 9 2 DIAGNOSIS CODE DISPLAY METHOD INDICATION BY THE DIAGNOSIS TESTER 1 Stop the vehicle 2 After setting the ignition switch to LOCK connect the diagnosis tester to DLC 3 After setting the ignition switch to ON use the diagnosis tester to read out the diagnosis code B8 28 13 9 3 DIAGNOSIS CODE DISPLAY METHOD INDICATION BY THE ENGINE CHECK LAMP 1 Stop the vehicle 2 Short the terminals 12 EFI T and 4E of DLC by using the SST with the ignition switch set to ON CAUTION e To short the terminals of DLC be sure to use the specified SST e Be sure to short the correct terminals If wrong terminals are shorted it will lead to malfunction SST 09991 87403 000 09991 87404 000 NOTE el the SST engine control
136. uncom busted gas 5 Remove the spark plug Attach it to the ignition coil and ground the plug 6 Check if the spark plug generates sparks when cranking is performed SPECIFIED VALUE Sparks are generated B8 36 13 12 TROUBLE SHOOTING ACCORDING TO MALFUNCTION PHENOMENA 13 12 1 DESCRIPTION 1 In cases where no diagnosis code was detected during the DTC check and malfunction can be still confirmed during the basic check perform the troubleshooting referring to the following table 2 In the trouble shooting according to malfunction phenomena first arrange in order of the contents of diagnosis through inquiries basic checks and ECU circuit checks Next narrow down possible causes referring to the table showing possible causes according to malfunction phenomena WARNING e Driving a vehicle with SST EFI computer check sub harness etc being connected might cause an error operation to occur which is extremely dangerous Make sure that SST has been discon nected before driving the vehicle NOTE e When checking each component be sure to check the harness and connectors that are connected to the component part concerned e Two possible causes for no abnormality detected by the diagnosis function even though a mal function phenomenon has been reproduced can be cited it is possible that a malfunction has oc curred outside the scope of diagnosis code output condition or that a malfunction has occurred apart from the diagnosis syste
137. urge Refer to Page B8 134 SPECIFIED VALUE The evapo purge VSV is normal V If the result is OK go to 6 V If the result is NG replace the VSV for the evaporator Refer to Page B3 2 D6 Checking the wiring harness 1 Check the wiring harness between the following sections for breaking of wires and short circuiting 1 Between vehicle side harness connector 61 PRG linking the EFl ECU and the vehicle side harness connector 1 PRG linking the evapo purge VSV 2 Between vehicle side harness connector 130 E1 linking the EFl ECU and the body ground connector Refer to Page A1 31 SPECIFIED VALUE No abnormality exists V If the result is OK check the EFI ECU circuit Refer to Page A1 32 v If itis NG repair or replace harness and connector at the faulty section B8 88 D7 Data monitor 1 Read out the data monitor Evaporative purge output by using the diagnosis tester 1 After the engine is warmed up after the radiator fan rotated one time or more carry out the checking while stepping on the accelerator pedal with the idling switch set to OFF for 2 min utes or more SPECIFIED VALUE The engine condition Displayed data Air conditioner turned OFF no electrical load O to 100 applied engine speed at 2000 rpm retained The condition under which the air conditioner is turned OFF and the air conditioner switch ASCW blower switch BLW magnet clutch MGC are all se
138. xygen sensor and 2 E2 SPECIFIED VALUE No continuity P21E6714T10 13 15 10 KNOCK SENSOR 1 Measure the resistance value between the following ter minals 1 Between 1 E2 and 2 KNK1 SPECIFIED VALUE 200 80kQ T11E6211T10 B8 131 13 15 11 THROTTLE POSITION SENSOR 1 Measure the resistance between the following terminals 1 Between 1 VC 2 E2 SPECIFIED VALUE 2 5 to 5 0kQ 2 Measure the resistance between the following terminals 1 Between 3 VTH 2 E2 SPECIFIED VALUE The resistance value will increase proportionally to the throttle lever opening NOTE e The resistance value when the throttle lever is fully opened R The resistance value when the throttle lever is fully closed R Resistance value between 1 VC 2 E2 R R R 0 7 XR 13 15 12 ISC STEPPER MOTOR 1 Completely warm up the engine 2 Confirm the engine speed when the engine is idling with no electric load such as air conditioner and the like ap plied SPECIFIED VALUE The engine is idling at the specified The idling engine speed 750 50rpm 3 Carry out the active test ISC by using the diagnosis tester SPECIFIED VALUE Opening 100 Steps engine RPMs rise Closing 10 steps engine RPMs decline or engine stalls dm Fully opened ve G al E2 VTH E E2 D VC Fully closed V VTH output Throttle
139. ystem rich faulty When the air to fuel ratio deviates two times consecutively to the rich side due to abnormal ity of the fuel trim system Abnormal combustion pressure injector oxygen sensor abnormal etc 2 trips O P0325 18 Vibrating type knock sensor signal When abnormality takes place in the signal from the knock sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 1 trip Rear oxygen sensor equipped vehicles O Rear oxygen sensor not equipped vehi cles P0335 13 Camshaft position sen sor signal When an abnormality takes place in the signal from the engine revolution sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 1 trip O P0340 14 Camshaft position sen sor signal When malfunction takes place in the signal from the camshaft position sensor Malfunction of a sensor breaking of wire or short circuiting of a wire in the signal system etc 1 trip P0350 16 Ignition system Primary When the ignition signal is not input consecu tively 1 trip P0443 76 Evaporator purge VSV When an abnormality takes place in the VSV detection signal for the evaporator purging Breaking of wire or short circuiting of a wire in the signal system etc 1 trips B8 32 DTC No Diagnosis items Contents of di

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