Infiniti M35/M45 Y50. Manual — part 382
EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION
EC
A
EC
ENGINE CONTROL SYSTEM
VQ35DE
INDEX FOR DTC . . . . . . . . . . . . . .. 16
DTC No. Index . . . . . . . . . . . . . ... 16
Alphabetical Index . . . . . . . . . . . . .. 20
PRECAUTIONS . . . . . . . . . . . . . . 24
PREPARATION . . . . . . . . . . . . . . . 28
Special Service Tools . . . . . . . . . . . . 28
Commercial Service Tools . . . . . . . . . .. 29
ENGINE CONTROL SYSTEM . . . . . . . . .. 30
AIR CONDITIONING CUT CONTROL . . . . . . 35
Input/Output Signal Chart . . . . . . . . . ... 35
System Description . . . . . . . . . . . . 35
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System Description . . . . . . . . . . . . 36
Component Description . . . . . . . . . . .. 37
CAN COMMUNICATION . . . . . . . . . . .. 38
System Description . . . . . . . . . . . . 38
EVAPORATIVE EMISSION SYSTEM . . . . . ... 39
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) . . . . . . . . . . . . . . . . . .. 46
POSITIVE CRANKCASE VENTILATION . . . . . 51
Description . . . . . . . . . . . . . . . .. 51
Component Inspection . . . . . . . . . . . 51
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) . . . . . . . . . . . . . . . . . . 53
Description . . . . . . . . . . . . . . . .. 53
ON BOARD DIAGNOSTIC (OBD) SYSTEM . . . 54
BASIC SERVICE PROCEDURE . . . . . . . ... 78
TROUBLE DIAGNOSIS . . . . . . . . . . . 90
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .143
Description . . . . . . . . . . . . . . . 143
Testing Condition . . . . . . . . . . . . .. 143
EC-2
Inspection Procedure . . . . . . . . . . . 143
Diagnostic Procedure . . . . . . . . . . ... 144
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT . . . . . . . . . . . . . . . . . ... 153
Description . . . . . . . . . . . . . . . 153
Diagnostic Procedure . . . . . . . . . . ... 153
POWER SUPPLY AND GROUND CIRCUIT . . ... 154
DTC U1000, U1001 CAN COMMUNICATION LINE .161
DTC U1010 CAN COMMUNICATION . . . . . . 164
DTC P0011, P0021 IVT CONTROL . . . . . . 166
Description . . . . . . . . . . . . . . . 166
CONSULT-II Reference Value in Data Monitor Mode
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER . . . . . . . . . . . . . . . . .. 170
Description . . . . . . . . . . . . . . . 170
CONSULT-II Reference Value in Data Monitor Mode
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .177
Description . . . . . . . . . . . . . . . 177
CONSULT-II Reference Value in Data Monitor Mode
DTC P0075, P0081 IVT CONTROL SOLENOID
VALVE . . . . . . . . . . . . . . . . . . 185
Component Description . . . . . . . . . . 185
CONSULT-II Reference Value in Data Monitor Mode
DTC P0101 MAF SENSOR . . . . . . . . . .193
Component Description . . . . . . . . . . 193
CONSULT-II Reference Value in Data Monitor Mode
DTC P0102, P0103 MAF SENSOR . . . . . . .202
Component Description . . . . . . . . . . 202
CONSULT-II Reference Value in Data Monitor Mode
DTC P0112, P0113 IAT SENSOR . . . . . . . 209
DTC P0117, P0118 ECT SENSOR . . . . . . ..214
DTC P0122, P0123 TP SENSOR . . . . . . . 219
Component Description . . . . . . . . . . 219
CONSULT-II Reference Value in Data Monitor Mode
DTC P0125 ECT SENSOR . . . . . . . . . ..226
EC-3
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EC
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DTC P0128 THERMOSTAT FUNCTION . . . . 232
DTC P0130, P0150 A/F SENSOR 1 . . . . . ... 234
Component Description . . . . . . . . . . 234
CONSULT-II Reference Value in Data Monitor Mode
DTC P0131, P0151 A/F SENSOR 1 . . . . . ... 244
Component Description . . . . . . . . . . 244
CONSULT-II Reference Value in Data Monitor Mode
DTC P0132, P0152 A/F SENSOR 1 . . . . . ... 253
Component Description . . . . . . . . . . 253
CONSULT-II Reference Value in Data Monitor Mode
DTC P0133, P0153 A/F SENSOR 1 . . . . . ... 262
Component Description . . . . . . . . . . 262
CONSULT-II Reference Value in Data Monitor Mode
DTC P0137, P0157 HO2S2 . . . . . . . . . 274
Component Description . . . . . . . . . . 274
CONSULT-II Reference Value in Data Monitor Mode
DTC P0138, P0158 HO2S2 . . . . . . . . . . 285
Component Description . . . . . . . . . . 285
CONSULT-II Reference Value in Data Monitor Mode
DTC P0139, P0159 HO2S2 . . . . . . . . . . 298
Component Description . . . . . . . . . . 298
CONSULT-II Reference Value in Data Monitor Mode
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION . . . . . . . . . . . . . . . .. 309
DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION . . . . . . . . . . . . . . . .. 320
DTC P0181 FTT SENSOR . . . . . . . . . .. 331
DTC P0182, P0183 FTT SENSOR . . . . . . .. 337
DTC P0222, P0223 TP SENSOR . . . . . . . 342
Component Description . . . . . . . . . . 342
CONSULT-II Reference Value in Data Monitor Mode
EC-4
Component Inspection . . . . . . . . . . .. 348
Removal and Installation . . . . . . . . . .. 348
DTC P0300 - P0306 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 6 CYLINDER MISFIRE . . . . . . 349
DTC P0327, P0328 KS . . . . . . . . . . . 359
DTC P0335 CKP SENSOR (POS) . . . . . . .. 364
Component Description . . . . . . . . . . 364
CONSULT-II Reference Value in Data Monitor Mode
DTC P0340, P0345 CMP SENSOR (PHASE) . . . 371
Component Description . . . . . . . . . . 371
CONSULT-II Reference Value in Data Monitor Mode
DTC P0420, P0430 THREE WAY CATALYST FUNC-
TION . . . . . . . . . . . . . . . . . . 380
DTC P0441 EVAP CONTROL SYSTEM . . . . . 386
DTC P0442 EVAP CONTROL SYSTEM . . . . . 391
DTC P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE . . . . . . . ... 400
Description . . . . . . . . . . . . . . . 400
CONSULT-II Reference Value in Data Monitor Mode
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE . . . . . ..408
Description . . . . . . . . . . . . . . . 408
CONSULT-II Reference Value in Data Monitor Mode
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE . . . . . . . . . . . . . . . . . ..415
Component Description . . . . . . . . . . 415
CONSULT-II Reference Value in Data Monitor Mode
DTC P0448 EVAP CANISTER VENT CONTROL
VALVE . . . . . . . . . . . . . . . . . ..422
Component Description . . . . . . . . . . 422
CONSULT-II Reference Value in Data Monitor Mode
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR . . . . . . . . . . . . . . . . ..428
Component Description . . . . . . . . . . 428
CONSULT-II Reference Value in Data Monitor Mode
DTC P0452 EVAP CONTROL SYSTEM PRESSURE
SENSOR . . . . . . . . . . . . . . . . ..431
Component Description . . . . . . . . . . 431
CONSULT-II Reference Value in Data Monitor Mode
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR . . . . . . . . . . . . . . . . ..437
Component Description . . . . . . . . . . 437
CONSULT-II Reference Value in Data Monitor Mode
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