Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti EX35 2008 Approved files EC
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ENGINE
A
ENGINE CONTROL SYSTEM
SECTION EC EC
C
D
E
CONTENTS
VQ35HR THROTTLE VALVE CLOSED POSITION F
LEARNING : Description ........................................17
.
BASIC INSPECTION ................................... 8
. THROTTLE VALVE CLOSED POSITION
LEARNING : Special Repair Requirement .............17 . G
DIAGNOSIS AND REPAIR WORKFLOW ......... 8
.
Work Flow ................................................................ 8
. IDLE AIR VOLUME LEARNING ...............................17 .
Diagnostic Work Sheet ........................................... 11. IDLE AIR VOLUME LEARNING : Description ........17 .
IDLE AIR VOLUME LEARNING : Special Repair H
INSPECTION AND ADJUSTMENT ...................12
. Requirement ...........................................................18
.
BASIC INSPECTION ................................................ 12 . EXHAUST VALVE TIMING CONTROL LEARNING
BASIC INSPECTION : Special Repair Require- I
....19
ment ....................................................................... 12
. EXHAUST VALVE TIMING CONTROL LEARN-
ING : Description ....................................................19
.
ADDITIONAL SERVICE WHEN REPLACING J
EXHAUST VALVE TIMING CONTROL LEARN-
CONTROL UNIT ....................................................... 15
.
ING : Special Repair Requirement .........................19 .
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ............................... 15 . MIXTURE RATIO SELF-LEARNING VALUE
ADDITIONAL SERVICE WHEN REPLACING K
CLEAR ......................................................................20
.
CONTROL UNIT : Special Repair Requirement .... 15 MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Description ...............................................20 .
IDLE SPEED ............................................................. 16
. L
MIXTURE RATIO SELF-LEARNING VALUE
IDLE SPEED : Description ..................................... 16 .
CLEAR : Special Repair Requirement ....................20 .
IDLE SPEED : Special Repair Requirement .......... 16 .
IGNITION TIMING ..................................................... 16
. FUNCTION DIAGNOSIS ............................. 21
. M
IGNITION TIMING : Description ............................. 16 . ENGINE CONTROL SYSTEM .......................... 21
IGNITION TIMING : Special Repair Requirement 16 .... System Diagram ....................................................21
.
System Description .................................................22
. N
VIN REGISTRATION ................................................ 16 .
VIN REGISTRATION : Description ........................ 16 . Component Parts Location .....................................22.
VIN REGISTRATION : Special Repair Require- Component Description ..........................................28
.
ment ....................................................................... 17
. O
MULTIPORT FUEL INJECTION SYSTEM ....... 30
ACCELERATOR PEDAL RELEASED POSITION System Diagram ....................................................30
.
LEARNING ............................................................... 17
. System Description .................................................30
.
Component Parts Location .....................................33. P
ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Description ........................................ 17 . Component Description ..........................................39
.
ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Special Repair Requirement ............. 17 .
ELECTRIC IGNITION SYSTEM ........................ 40
System Diagram ....................................................40
.
THROTTLE VALVE CLOSED POSITION LEARN- System Description .................................................40
.
ING ............................................................................ 17
. Component Parts Location .....................................41.
Revision: 2007 November EC-1 2008 EX35
Component Description ......................................... 47
. Diagnosis Procedure ............................................ 136
.
AIR CONDITIONING CUT CONTROL ............. 48
. P0011, P0021 IVT CONTROL ......................... 137
.
System Diagram .................................................... 48
. DTC Logic ............................................................ 137
.
System Description ................................................ 48
. Diagnosis Procedure ............................................ 138 .
Component Parts Location .................................... 49. Component Inspection ......................................... 139 .
Component Description ......................................... 55
.
P0014, P0024 EVT CONTROL ........................ 141
.
AUTOMATIC SPEED CONTROL DEVICE DTC Logic ............................................................ 141
.
(ASCD) .............................................................. 56
. Diagnosis Procedure ............................................ 142 .
System Diagram .................................................... 56
. Component Inspection ......................................... 143 .
System Description ................................................ 56
.
Component Parts Location .................................... 58. P0031, P0032, P0051, P0052 A/F SENSOR 1
Component Description ........................................ 64
. HEATER .......................................................... 145
.
Description ........................................................... 145
.
CAN COMMUNICATION .................................. 65
. DTC Logic ............................................................ 145
.
System Description ................................................ 65
. Diagnosis Procedure ............................................ 145 .
Component Inspection ......................................... 147 .
COOLING FAN CONTROL .............................. 66
.
System Diagram .................................................... 66
. P0037, P0038, P0057, P0058 HO2S2 HEAT-
System Description ................................................ 66
. ER .................................................................... 148
.
Component Parts Location .................................... 67. Description ........................................................... 148
.
Component Description ......................................... 73
. DTC Logic ............................................................ 148
.
Diagnosis Procedure ............................................ 149 .
EVAPORATIVE EMISSION SYSTEM .............. 74
. Component Inspection ......................................... 150 .
System Diagram .................................................... 74
.
System Description ................................................ 74
. P0075, P0081 IVT CONTROL SOLENOID
Component Parts Location .................................... 77. VALVE ............................................................. 151
.
Component Description ........................................ 83
. Description ........................................................... 151
.
DTC Logic ............................................................ 151
.
EXHAUST VALVE TIMING CONTROL ............ 84
. Diagnosis Procedure ............................................ 151 .
System Diagram .................................................... 84
.
Component Inspection ......................................... 152 .
System Description ................................................ 84
.
Component Parts Location .................................... 85. P0078, P0084 EVT CONTROL MAGNET RE-
Component Description ......................................... 91
. TARDER .......................................................... 154
.
Description ........................................................... 154
.
INTAKE VALVE TIMING CONTROL ................ 92
.
DTC Logic ............................................................ 154
.
System Diagram .................................................... 92
.
Diagnosis Procedure ............................................ 154 .
System Description ................................................ 92
.
Component Inspection ......................................... 155 .
Component Parts Location .................................... 93.
Component Description ......................................... 99
. P0101, P010B MAF SENSOR ......................... 157
.
Description ........................................................... 157
.
ON BOARD DIAGNOSTIC (OBD) SYSTEM .. 100
.
DTC Logic ............................................................ 157
.
Diagnosis Description ...........................................100
.
Component Function Check ................................ 159 .
CONSULT-III Function .........................................113
.
Diagnosis Procedure ............................................ 159 .
Diagnosis Tool Function .....................................122
.
Component Inspection ......................................... 161 .
COMPONENT DIAGNOSIS ...................... 125
. P0102, P0103, P010C, P010D MAF SENSOR.. 164
TROUBLE DIAGNOSIS - SPECIFICATION Description ........................................................... 164
.
VALUE ............................................................ 125
. DTC Logic ............................................................ 164
.
Diagnosis Procedure ............................................ 165 .
Description ............................................................125
.
Component Inspection ......................................... 166 .
Component Function Check .................................125 .
Diagnosis Procedure ............................................126 . P0112, P0113 IAT SENSOR ........................... 170
.
POWER SUPPLY AND GROUND CIRCUIT .. 133
. Description ........................................................... 170
.
DTC Logic ............................................................ 170
.
Diagnosis Procedure ............................................133
.
Diagnosis Procedure ............................................ 170 .
U1000, U1001 CAN COMM CIRCUIT ............ 136
. Component Inspection ......................................... 171 .
Description ............................................................136
.
DTC Logic .............................................................136
.
P0117, P0118 ECT SENSOR .......................... 172
.
Description ........................................................... 172
.
Revision: 2007 November EC-2 2008 EX35
DTC Logic ............................................................ 172
. Component Inspection .......................................... 211
.
Diagnosis Procedure ............................................ 173. A
Component Inspection ......................................... 174 . P0139, P0159 HO2S2 ..................................... 214
Description ............................................................ 214
.
P0122, P0123, P0227, P0228 TP SENSOR .... 175
. DTC Logic ............................................................. 214
.
Description ........................................................... 175
. Component Function Check ................................. 215 . EC
DTC Logic ............................................................ 175
. Diagnosis Procedure ............................................ 216 .
Diagnosis Procedure ............................................ 175 . Component Inspection .......................................... 217 .
Component Inspection ......................................... 177 . C
Special Repair Requirement ................................ 177 . P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION ...................................................... 220
P0125 ECT SENSOR ...................................... 178
. DTC Logic ............................................................. 220
. D
Description ........................................................... 178
. Diagnosis Procedure ............................................ 221 .
DTC Logic ............................................................ 178
.
Diagnosis Procedure ............................................ 179 . P0172, P0175 FUEL INJECTION SYSTEM
Component Inspection ......................................... 179 . FUNCTION ...................................................... 224 E
DTC Logic ............................................................. 224
.
P0127 IAT SENSOR ........................................ 181
. Diagnosis Procedure ............................................ 225 .
Description ........................................................... 181
. F
DTC Logic ............................................................ 181
. P0181 FTT SENSOR ....................................... 228
Diagnosis Procedure ............................................ 182 . Description ............................................................ 228
.
Component Inspection ......................................... 182 . DTC Logic ............................................................. 228
.
Diagnosis Procedure ............................................ 229 . G
P0128 THERMOSTAT FUNCTION ................. 183
. Component Inspection .......................................... 230 .
DTC Logic ............................................................ 183
.
Diagnosis Procedure ............................................ 183. P0182, P0183 FTT SENSOR .......................... 231 H
Component Inspection ......................................... 184 . Description ............................................................ 231
.
DTC Logic ............................................................. 231
.
P0130, P0150 A/F SENSOR 1 ........................ 185
. Diagnosis Procedure ............................................ 231 .
Description ........................................................... 185
. Component Inspection .......................................... 233 . I
DTC Logic ............................................................ 185
.
Component Function Check ................................. 187 . P0196 EOT SENSOR ...................................... 234
Diagnosis Procedure ............................................ 187 . Description ............................................................ 234
. J
DTC Logic ............................................................. 234
.
P0131, P0151 A/F SENSOR 1 ........................ 189
. Diagnosis Procedure ............................................ 235 .
Description ........................................................... 189
. Component Inspection .......................................... 236 .
DTC Logic ............................................................ 189
. K
Diagnosis Procedure ............................................ 190 . P0197, P0198 EOT SENSOR ......................... 237
Description ............................................................ 237
.
P0132, P0152 A/F SENSOR 1 ........................ 192
. DTC Logic ............................................................. 237
. L
Description ........................................................... 192
. Diagnosis Procedure ............................................ 238 .
DTC Logic ............................................................ 192
. Component Inspection .......................................... 238 .
Diagnosis Procedure ............................................ 193 .
P0222, P0223, P2132, P2133 TP SENSOR ... 240 M
P0133, P0153 A/F SENSOR 1 ........................ 195
. Description ............................................................ 240
.
Description ........................................................... 195
. DTC Logic ............................................................. 240
.
DTC Logic ............................................................ 195
. Diagnosis Procedure ............................................ 240 . N
Diagnosis Procedure ............................................ 197 . Component Inspection .......................................... 242 .
Special Repair Requirement ................................. 242 .
P0137, P0157 HO2S2 ..................................... 200
.
Description ........................................................... 200
. O
P0300, P0301, P0302, P0303, P0304, P0305,
DTC Logic ............................................................ 200
. P0306 MISFIRE ............................................... 243
Component Function Check ................................. 201 . DTC Logic ............................................................. 243
.
Diagnosis Procedure ............................................ 202 . Diagnosis Procedure ............................................ 244 . P
Component Inspection ......................................... 203 .
P0327, P0328, P0332, P0333 KS ................... 249
P0138, P0158 HO2S2 ..................................... 206
. Description ............................................................ 249
.
Description ........................................................... 206
. DTC Logic ............................................................. 249
.
DTC Logic ............................................................ 206
. Diagnosis Procedure ............................................ 249 .
Component Function Check ................................. 208 . Component Inspection .......................................... 250 .
Diagnosis Procedure ............................................ 209 .
Revision: 2007 November EC-3 2008 EX35
P0335 CKP SENSOR (POS) .......................... 252
. Diagnosis Procedure ............................................ 295
.
Description ............................................................252
. Component Inspection ......................................... 296
.
DTC Logic .............................................................252
.
Diagnosis Procedure ............................................253 . P0452 EVAP CONTROL SYSTEM PRES-
Component Inspection ..........................................255 . SURE SENSOR ............................................... 297
.
Description ........................................................... 297
.
P0340, P0345 CMP SENSOR (PHASE) ......... 256
. DTC Logic ............................................................ 297
.
Description ............................................................256
. Diagnosis Procedure ............................................ 298 .
DTC Logic .............................................................256
. Component Inspection ......................................... 301 .
Diagnosis Procedure ............................................258 .
Component Inspection ..........................................260 . P0453 EVAP CONTROL SYSTEM PRES-
SURE SENSOR ............................................... 302
.
P0420, P0430 THREE WAY CATALYST Description ........................................................... 302
.
FUNCTION ...................................................... 262
. DTC Logic ............................................................ 302
.
DTC Logic .............................................................262
. Diagnosis Procedure ............................................ 303 .
Component Function Check .................................263 . Component Inspection ......................................... 306 .
Diagnosis Procedure ............................................264 .
P0455 EVAP CONTROL SYSTEM ................. 308
.
P0441 EVAP CONTROL SYSTEM ................. 267
. DTC Logic ............................................................ 308
.
DTC Logic .............................................................267
. Diagnosis Procedure ............................................ 309 .
Component Function Check .................................268 . Component Inspection ......................................... 312 .
Diagnosis Procedure ............................................269 .
P0456 EVAP CONTROL SYSTEM ................. 314
.
P0442 EVAP CONTROL SYSTEM ................. 272
. DTC Logic ............................................................ 314
.
DTC Logic .............................................................272
. Component Function Check ................................ 316 .
Diagnosis Procedure ............................................273 . Diagnosis Procedure ............................................ 316 .
Component Inspection ..........................................277 . Component Inspection ......................................... 319 .
P0443 EVAP CANISTER PURGE VOLUME P0460 FUEL LEVEL SENSOR ........................ 321
.
CONTROL SOLENOID VALVE ...................... 278
. Description ........................................................... 321
.
Description ............................................................278
. DTC Logic ............................................................ 321
.
DTC Logic .............................................................278
. Diagnosis Procedure ............................................ 321 .
Diagnosis Procedure ............................................279 .
Component Inspection ..........................................281 . P0461 FUEL LEVEL SENSOR ........................ 322
.
Description ........................................................... 322
.
P0444, P0445 EVAP CANISTER PURGE DTC Logic ............................................................ 322
.
VOLUME CONTROL SOLENOID VALVE ..... 283
. Component Function Check ................................ 322 .
Description ............................................................283
. Diagnosis Procedure ............................................ 323 .
DTC Logic .............................................................283
.
Diagnosis Procedure ............................................283 .
P0462, P0463 FUEL LEVEL SENSOR ........... 324
.
Description ........................................................... 324
.
Component Inspection ..........................................285 .
DTC Logic ............................................................ 324
.
P0447 EVAP CANISTER VENT CONTROL Diagnosis Procedure ............................................ 324 .
VALVE ............................................................ 286
.
P0500 VSS ....................................................... 326
.
Description ............................................................286
.
Description ........................................................... 326
.
DTC Logic .............................................................286
.
DTC Logic ............................................................ 326
.
Diagnosis Procedure ............................................286 .
Component Function Check ................................ 327 .
Component Inspection ..........................................288 .
Diagnosis Procedure ............................................ 327 .
P0448 EVAP CANISTER VENT CONTROL
P0506 ISC SYSTEM ........................................ 328
.
VALVE ............................................................ 290
. Description ........................................................... 328
.
Description ............................................................290
. DTC Logic ............................................................ 328
.
DTC Logic .............................................................290
. Diagnosis Procedure ............................................ 328 .
Diagnosis Procedure ............................................291 .
Component Inspection ..........................................292 . P0507 ISC SYSTEM ........................................ 330
.
Description ........................................................... 330
.
P0451 EVAP CONTROL SYSTEM PRES- DTC Logic ............................................................ 330
.
SURE SENSOR .............................................. 294
. Diagnosis Procedure ............................................ 330 .
Description ............................................................294
.
DTC Logic .............................................................294
. P0550 PSP SENSOR ...................................... 332
.
Revision: 2007 November EC-4 2008 EX35
Description ........................................................... 332
. Description ............................................................ 358
.
DTC Logic ............................................................ 332
. DTC Logic ............................................................. 358
. A
Diagnosis Procedure ............................................ 332 . Diagnosis Procedure ............................................ 358 .
Component Inspection ......................................... 333 . Special Repair Requirement ................................. 359 .
P0603 ECM POWER SUPPLY ........................ 334
. P1233, P2101 ELECTRIC THROTTLE CON- EC
Description ........................................................... 334
. TROL FUNCTION ........................................... 360
DTC Logic ............................................................ 334
. Description ............................................................ 360
.
Diagnosis Procedure ............................................ 334 . DTC Logic ............................................................. 360
. C
Diagnosis Procedure ............................................ 360 .
P0605 ECM ...................................................... 336
. Component Inspection .......................................... 363 .
Description ........................................................... 336
. Special Repair Requirement ................................. 363 . D
DTC Logic ............................................................ 336
.
Diagnosis Procedure ............................................ 337 . P1236, P2118 THROTTLE CONTROL MO-
TOR ................................................................. 364
P0607 ECM ...................................................... 338
. Description ............................................................ 364
. E
Description ........................................................... 338
.
DTC Logic ............................................................. 364
.
DTC Logic ............................................................ 338
.
Diagnosis Procedure ............................................ 364 .
Diagnosis Procedure ............................................ 338 . F
Component Inspection .......................................... 365 .
P0643 SENSOR POWER SUPPLY ................ 339
. Special Repair Requirement ................................. 365 .
DTC Logic ............................................................ 339
. P1238, P2119 ELECTRIC THROTTLE CON-
Diagnosis Procedure ............................................ 339. G
TROL ACTUATOR .......................................... 367
P0850 PNP SWITCH ....................................... 341
. Description ............................................................ 367
.
Description ........................................................... 341
. DTC Logic ............................................................. 367
.
Diagnosis Procedure ............................................ 368 . H
DTC Logic ............................................................ 341
.
Component Function Check ................................. 342 . Special Repair Requirement ................................. 368 .
Diagnosis Procedure ............................................ 342 .
P1239, P2135 TP SENSOR ............................ 369 I
P1078, P1084 EVT CONTROL POSITION Description ............................................................ 369
.
SENSOR .......................................................... 344
. DTC Logic ............................................................. 369
.
Description ........................................................... 344
. Diagnosis Procedure ............................................ 369 .
J
DTC Logic ............................................................ 344
. Component Inspection .......................................... 371 .
Diagnosis Procedure ............................................ 345 . Special Repair Requirement ................................. 371 .
Component Inspection ......................................... 348 . P1290, P2100, P2103 THROTTLE CONTROL K
P1148, P1168 CLOSED LOOP CONTROL .... 349
. MOTOR RELAY .............................................. 372
DTC Logic ............................................................ 349
. Description ............................................................ 372
.
DTC Logic ............................................................. 372
. L
P1211 TCS CONTROL UNIT .......................... 350
. Diagnosis Procedure ............................................ 372 .
Description ........................................................... 350
.
DTC Logic ............................................................ 350
. P1421 COLD START CONTROL ................... 374
Diagnosis Procedure ............................................ 350 . Description ............................................................ 374
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