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ENGINE CONTROL SYSTEM


B ENGINE

                                                                                                                                                                           A


                                                                                                                                                                           EC
                                                                                                        SECTION
                                                                           ENGINE CONTROL SYSTEM                                                                           C


                                                                                                                                                                           D


                                                                                                                                                                           E
                                                                    CONTENTS
INDEX FOR DTC ....................................................... 8     .          Description ............................................................. 44
                                                                                                                                                                  .        F
  DTC No. Index ........................................................ 8  .          Component Inspection ........................................... 44        .
  Alphabetical Index ................................................. 12   .        IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
PRECAUTIONS ....................................................... 16      .        NATS) ....................................................................... 46
                                                                                                                                                                  .        G
  Precautions for Supplemental Restraint System                                        Description ............................................................. 46
                                                                                                                                                                  .
  (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                            ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 47                              .
  SIONER" ............................................................... 16.          Introduction ............................................................ 47
                                                                                                                                                                  .
                                                                                                                                                                           H
  Precautions for Battery Service ............................. 16          .          Two Trip Detection Logic ....................................... 47        .
  On Board Diagnostic (OBD) System of Engine and                                       Emission-Related Diagnostic Information .............. 48                  .
  A/T ......................................................................... 16
                                                                            .          Malfunction Indicator Lamp (MIL) .......................... 62             .
  Precaution ............................................................. 17
                                                                            .          OBD System Operation Chart ............................... 66              .         I
PREPARATION ........................................................ 20     .        BASIC SERVICE PROCEDURE .............................. 71                    .
  Special Service Tools ............................................ 20     .          Basic Inspection .................................................... 71   .
  Commercial Service Tools ..................................... 21         .          Idle Speed and Ignition Timing Check ................... 76                .        J
ENGINE CONTROL SYSTEM ................................. 22                  .          VIN Registration .................................................... 77   .
  System Diagram (A/T models) .............................. 22             .          Exhaust Valve Timing Control Learning (M/T mod-
  System Diagram (M/T models) ............................. 23              .          els) ......................................................................... 78
                                                                                                                                                                  .
                                                                                                                                                                           K
  Multiport Fuel Injection (MFI) System ................... 24              .          Accelerator Pedal Released Position Learning ..... 78                      .
  Electronic Ignition (EI) System .............................. 26         .          Throttle Valve Closed Position Learning ................ 79                .
  Fuel Cut Control (at No Load and High Engine                                         Idle Air Volume Learning ....................................... 79        .
  Speed) ................................................................... 27
                                                                            .          Fuel Pressure Check ............................................. 81       .        L
AIR CONDITIONING CUT CONTROL .................... 28                        .        TROUBLE DIAGNOSIS ........................................... 83             .
  Input/Output Signal Chart ...................................... 28       .          Trouble Diagnosis Introduction .............................. 83           .
AUTOMATIC SPEED CONTROL DEVICE (ASCD) 29                                    ...        DTC Inspection Priority Chart ................................ 89          .        M
  System Description ............................................... 29     .          Fail-Safe Chart ...................................................... 91  .
  Component Description ......................................... 30        .          Symptom Matrix Chart ........................................... 92        .
CAN COMMUNICATION ......................................... 31              .          Engine Control Component Parts Location (A/T
  System Description ............................................... 31     .          models) .................................................................. 96
                                                                                                                                                                  .
EVAPORATIVE EMISSION SYSTEM ...................... 32                       .          Engine Control Component Parts Location (M/T
  Description ............................................................ 32
                                                                            .          models) ................................................................ 102
                                                                                                                                                                  .
  Component Inspection .......................................... 35        .          Vacuum Hose Drawing ........................................ 108           .
  Removal and Installation ....................................... 36       .          Circuit Diagram .................................................... 109   .
  How to Detect Fuel Vapor Leakage ...................... 36                .          ECM Harness Connector Terminal Layout ...........111                       .
ON BOARD REFUELING VAPOR RECOVERY                                                      ECM Terminals and Reference Value ...................111                   .
(ORVR) ..................................................................... 39
                                                                            .          CONSULT-II Function (ENGINE) ......................... 121                 .
  System Description ............................................... 39     .          Generic Scan Tool (GST) Function ...................... 134                .
  Diagnostic Procedure ............................................ 40      .          CONSULT-II Reference Value in Data Monitor .... 136                        .
  Component Inspection .......................................... 42        .          Major Sensor Reference Graph in Data Monitor
POSITIVE CRANKCASE VENTILATION ................ 44                          .          Mode .................................................................... 140
                                                                                                                                                                  .
                                                                                     TROUBLE DIAGNOSIS - SPECIFICATION VALUE 142                                  .


Revision: 2006 August                                                          EC-1                                                           2006 G35 Coupe
 Description ........................................................... 142
                                                                          .        Diagnostic Procedure ........................................... 189     .
 Testing Condition ................................................. 142  .        Component Inspection ......................................... 191       .
 Inspection Procedure ........................................... 142     .        Removal and Installation ...................................... 191      .
 Diagnostic Procedure .......................................... 143      .       DTC P0075, P0081 IVT CONTROL SOLENOID
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-                                          VALVE ..................................................................... 192
                                                                                                                                                            .
DENT ...................................................................... 152
                                                                          .        Component Description ....................................... 192        .
 Description ........................................................... 152
                                                                          .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 152      .                                                                                 .192
POWER SUPPLY AND GROUND CIRCUIT .......... 153                            .        On Board Diagnosis Logic ................................... 192         .
 Wiring Diagram .................................................... 153  .        DTC Confirmation Procedure ............................... 192           .
 Diagnostic Procedure .......................................... 156      .        Wiring Diagram .................................................... 193  .
 Ground Inspection ............................................... 160    .        Diagnostic Procedure ........................................... 197     .
DTC U1000, U1001 CAN COMMUNICATION LINE. 162                                       Component Inspection ......................................... 199       .
 Description ........................................................... 162
                                                                          .        Removal and Installation ...................................... 199      .
 On Board Diagnosis Logic ................................... 162         .       DTC P0078 P0084 EVT CONTROL MAGNET
 DTC Confirmation Procedure .............................. 162            .       RETARDER ............................................................ 200 .
 Wiring Diagram .................................................... 163  .        Component Description ....................................... 200        .
 Diagnostic Procedure .......................................... 164      .        CONSULT-II Reference Value in Data Monitor Mode
DTC U1010 CAN COMMUNICATION .................... 165                      .                                                                                 .200
 Description ........................................................... 165
                                                                          .        On Board Diagnosis Logic ................................... 200         .
 On Board Diagnosis Logic ................................... 165         .        DTC Confirmation Procedure ............................... 200           .
 DTC Confirmation Procedure .............................. 165            .        Wiring Diagram .................................................... 201  .
 Diagnostic Procedure .......................................... 166      .        Diagnostic Procedure ........................................... 205     .
DTC P0011, P0021 IVT CONTROL ....................... 167                  .        Component Inspection ......................................... 207       .
 Description ........................................................... 167
                                                                          .        Removal and Installation ...................................... 207      .
 CONSULT-II Reference Value in Data Monitor Mode                                  DTC P0101 MAF SENSOR .................................... 208             .
                                                                          . 167    Component Description ....................................... 208        .
 On Board Diagnosis Logic ................................... 168         .        CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 168            .                                                                                 .208
 Diagnostic Procedure .......................................... 169      .        On Board Diagnosis Logic ................................... 208         .
 Component Inspection ......................................... 171       .        DTC Confirmation Procedure ............................... 209           .
 Removal and Installation ..................................... 171       .        Overall Function Check ........................................ 210      .
DTC P0014 P0024 EVT CONTROL ....................... 172                   .        Wiring Diagram .................................................... 211  .
 Description ........................................................... 172
                                                                          .        Diagnostic Procedure ........................................... 212     .
 CONSULT-II Reference Value in Data Monitor Mode                                   Component Inspection ......................................... 214       .
                                                                          . 172    Removal and Installation ...................................... 216      .
 On Board Diagnosis Logic ................................... 173         .       DTC P0102, P0103 MAF SENSOR ........................ 217                  .
 DTC Confirmation Procedure .............................. 173            .        Component Description ....................................... 217        .
 Diagnostic Procedure .......................................... 174      .        CONSULT-II Reference Value in Data Monitor Mode
 Component Inspection ......................................... 176       .                                                                                 .217
 Removal and Installation ..................................... 176       .        On Board Diagnosis Logic ................................... 217         .
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1                                        DTC Confirmation Procedure ............................... 218           .
HEATER ................................................................. 177
                                                                          .        Wiring Diagram .................................................... 219  .
 Description ........................................................... 177
                                                                          .        Diagnostic Procedure ........................................... 220     .
 CONSULT-II Reference Value in Data Monitor Mode                                   Component Inspection ......................................... 222       .
                                                                          . 177    Removal and Installation ...................................... 223      .
 On Board Diagnosis Logic ................................... 177         .       DTC P0112, P0113 IAT SENSOR ........................... 224               .
 DTC Confirmation Procedure .............................. 177            .        Component Description ....................................... 224        .
 Wiring Diagram .................................................... 178  .        On Board Diagnosis Logic ................................... 224         .
 Diagnostic Procedure .......................................... 181      .        DTC Confirmation Procedure ............................... 224           .
 Component Inspection ......................................... 183       .        Wiring Diagram .................................................... 225  .
 Removal and Installation ..................................... 183       .        Diagnostic Procedure ........................................... 226     .
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER 184                           .        Component Inspection ......................................... 227       .
 Description ........................................................... 184
                                                                          .        Removal and Installation ...................................... 227      .
 CONSULT-II Reference Value in Data Monitor Mode                                  DTC P0117, P0118 ECT SENSOR ......................... 228                 .
                                                                          . 184    Component Description ....................................... 228        .
 On Board Diagnosis Logic ................................... 184         .        On Board Diagnosis Logic ................................... 228         .
 DTC Confirmation Procedure .............................. 185            .        DTC Confirmation Procedure ............................... 229           .
 Wiring Diagram .................................................... 186  .        Wiring Diagram .................................................... 230  .

Revision: 2006 August                                                        EC-2                                                        2006 G35 Coupe
 Diagnostic Procedure .......................................... 231
                                                                  .        Diagnostic Procedure .......................................... 272 .
 Component Inspection ........................................ 232.        Removal and Installation ..................................... 275  .       A
 Removal and Installation ..................................... 232
                                                                  .       DTC P0133, P0153 A/F SENSOR 1 ...................... 276             .
DTC P0122, P0123 TP SENSOR .......................... 233         .        Component Description ....................................... 276   .
 Component Description ....................................... 233.        CONSULT-II Reference Value in Data Monitor Mode                             EC
 CONSULT-II Reference Value in Data Monitor Mode                                                                                               . 276
                                                                  . 233    On Board Diagnosis Logic ................................... 276    .
 On Board Diagnosis Logic .................................. 233  .        DTC Confirmation Procedure .............................. 277       .
 DTC Confirmation Procedure .............................. 234    .        Wiring Diagram .................................................... 279
                                                                                                                                               .       C
 Wiring Diagram ................................................... 235
                                                                  .        Diagnostic Procedure .......................................... 282 .
 Diagnostic Procedure .......................................... 236
                                                                  .        Removal and Installation ..................................... 287  .
 Component Inspection ........................................ 239.       DTC P0137, P0157 HO2S2 .................................... 288      .       D
 Removal and Installation ..................................... 239
                                                                  .        Component Description ....................................... 288   .
DTC P0125 ECT SENSOR .................................... 240     .        CONSULT-II Reference Value in Data Monitor Mode
 Component Description ....................................... 240.                                                                            . 288   E
 On Board Diagnosis Logic .................................. 240  .        On Board Diagnosis Logic ................................... 288    .
 DTC Confirmation Procedure .............................. 241    .        DTC Confirmation Procedure .............................. 289       .
 Diagnostic Procedure .......................................... 241
                                                                  .        Overall Function Check ....................................... 289  .
 Component Inspection ........................................ 242.        Wiring Diagram .................................................... 291
                                                                                                                                               .       F
 Removal and Installation ..................................... 242
                                                                  .        Diagnostic Procedure .......................................... 294 .
DTC P0127 IAT SENSOR ...................................... 243   .        Component Inspection ......................................... 297  .
 Component Description ....................................... 243.        Removal and Installation ..................................... 298  .       G
 On Board Diagnosis Logic .................................. 243  .       DTC P0138, P0158 HO2S2 .................................... 299      .
 DTC Confirmation Procedure .............................. 243    .        Component Description ....................................... 299   .
 Diagnostic Procedure .......................................... 244
                                                                  .        CONSULT-II Reference Value in Data Monitor Mode                             H
 Component Inspection ........................................ 245.                                                                            . 299
 Removal and Installation ..................................... 245
                                                                  .        On Board Diagnosis Logic ................................... 299    .
DTC P0128 THERMOSTAT FUNCTION ............... 246                 .        DTC Confirmation Procedure .............................. 301       .
                                                                                                                                                        I
 On Board Diagnosis Logic .................................. 246  .        Overall Function Check ....................................... 301  .
 DTC Confirmation Procedure .............................. 246    .        Wiring Diagram .................................................... 302
                                                                                                                                               .
 Diagnostic Procedure .......................................... 246
                                                                  .        Diagnostic Procedure .......................................... 305 .
 Component Inspection ........................................ 247.        Component Inspection ......................................... 310  .       J
 Removal and Installation ..................................... 247
                                                                  .        Removal and Installation ..................................... 311  .
DTC P0130, P0150 A/F SENSOR 1 ...................... 248          .       DTC P0139, P0159 HO2S2 .................................... 312      .
 Component Description ....................................... 248.        Component Description ....................................... 312   .       K
 CONSULT-II Reference Value in Data Monitor Mode                           CONSULT-II Reference Value in Data Monitor Mode
                                                                  . 248                                                                        . 312
 On Board Diagnosis Logic .................................. 248  .        On Board Diagnosis Logic ................................... 312    .       L
 DTC Confirmation Procedure .............................. 248    .        DTC Confirmation Procedure .............................. 313       .
 Overall Function Check ....................................... 249
                                                                  .        Overall Function Check ....................................... 313  .
 Wiring Diagram ................................................... 251
                                                                  .        Wiring Diagram .................................................... 315
                                                                                                                                               .
 Diagnostic Procedure .......................................... 254
                                                                  .        Diagnostic Procedure .......................................... 318 .       M
 Removal and Installation ..................................... 257
                                                                  .        Component Inspection ......................................... 321  .
DTC P0131, P0151 A/F SENSOR 1 ...................... 258          .        Removal and Installation ..................................... 322  .
 Component Description ....................................... 258.       DTC P0171, P0174 FUEL INJECTION SYSTEM
 CONSULT-II Reference Value in Data Monitor Mode                          FUNCTION ............................................................. 323
                                                                                                                                               .
                                                                  . 258    On Board Diagnosis Logic ................................... 323    .
 On Board Diagnosis Logic .................................. 258  .        DTC Confirmation Procedure .............................. 323       .
 DTC Confirmation Procedure .............................. 258    .        Wiring Diagram .................................................... 325
                                                                                                                                               .
 Wiring Diagram ................................................... 260
                                                                  .        Diagnostic Procedure .......................................... 329 .
 Diagnostic Procedure .......................................... 263
                                                                  .       DTC P0172, P0175 FUEL INJECTION SYSTEM
 Removal and Installation ..................................... 266
                                                                  .       FUNCTION ............................................................. 335
                                                                                                                                               .
DTC P0132, P0152 A/F SENSOR 1 ...................... 267          .        On Board Diagnosis Logic ................................... 335    .
 Component Description ....................................... 267.        DTC Confirmation Procedure .............................. 335       .
 CONSULT-II Reference Value in Data Monitor Mode                           Wiring Diagram .................................................... 337
                                                                                                                                               .
                                                                  . 267    Diagnostic Procedure .......................................... 341 .
 On Board Diagnosis Logic .................................. 267  .       DTC P0181 FTT SENSOR ..................................... 346       .
 DTC Confirmation Procedure .............................. 267    .        Component Description ....................................... 346   .
 Wiring Diagram ................................................... 269
                                                                  .        On Board Diagnosis Logic ................................... 346    .

Revision: 2006 August                                                EC-3                                                    2006 G35 Coupe
  DTC Confirmation Procedure .............................. 346            .        DTC Confirmation Procedure ............................... 394           .
  Wiring Diagram .................................................... 348  .        Overall Function Check ........................................ 395      .
  Diagnostic Procedure .......................................... 349      .        Diagnostic Procedure ........................................... 396     .
  Component Inspection ......................................... 350       .       DTC P0441 EVAP CONTROL SYSTEM ................ 400                        .
  Removal and Installation ..................................... 350       .        System Description .............................................. 400    .
DTC P0182, P0183 FTT SENSOR ......................... 351                  .        On Board Diagnosis Logic ................................... 400         .
  Component Description ....................................... 351        .        DTC Confirmation Procedure ............................... 400           .
  On Board Diagnosis Logic ................................... 351         .        Overall Function Check ........................................ 401      .
  DTC Confirmation Procedure .............................. 351            .        Diagnostic Procedure ........................................... 402     .
  Wiring Diagram .................................................... 352  .       DTC P0442 EVAP CONTROL SYSTEM ................ 405                        .
  Diagnostic Procedure .......................................... 353      .        On Board Diagnosis Logic ................................... 405         .
  Component Inspection ......................................... 354       .        DTC Confirmation Procedure ............................... 406           .
  Removal and Installation ..................................... 354       .        Diagnostic Procedure ........................................... 407     .
DTC P0222, P0223 TP SENSOR ........................... 355                 .       DTC P0443 EVAP CANISTER PURGE VOLUME
  Component Description ....................................... 355        .       CONTROL SOLENOID VALVE .............................. 413                 .
  CONSULT-II Reference Value in Data Monitor Mode                                   Description ........................................................... 413
                                                                                                                                                             .
                                                                           . 355    CONSULT-II Reference Value in Data Monitor Mode
  On Board Diagnosis Logic ................................... 355         .                                                                                 .413
  DTC Confirmation Procedure .............................. 356            .        On Board Diagnosis Logic ................................... 414         .
  Wiring Diagram .................................................... 357  .        DTC Confirmation Procedure ............................... 414           .
  Diagnostic Procedure .......................................... 358      .        Wiring Diagram .................................................... 415  .
  Component Inspection ......................................... 361       .        Diagnostic Procedure ........................................... 417     .
  Removal and Installation ..................................... 361       .        Component Inspection ......................................... 419       .
DTC P0300 - P0306 MULTIPLE CYLINDER MIS-                                            Removal and Installation ...................................... 420      .
FIRE, NO. 1 - 6 CYLINDER MISFIRE .................... 362                  .       DTC P0444, P0445 EVAP CANISTER PURGE VOL-
  On Board Diagnosis Logic ................................... 362         .       UME CONTROL SOLENOID VALVE ..................... 421                      .
  DTC Confirmation Procedure .............................. 363            .        Description ........................................................... 421
                                                                                                                                                             .
  Diagnostic Procedure .......................................... 363      .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0327, P0328 KS ........................................... 372        .                                                                                 .421
  Component Description ....................................... 372        .        On Board Diagnosis Logic ................................... 422         .
  On Board Diagnosis Logic ................................... 372         .        DTC Confirmation Procedure ............................... 422           .
  DTC Confirmation Procedure .............................. 372            .        Wiring Diagram .................................................... 423  .
  Wiring Diagram .................................................... 373  .        Diagnostic Procedure ........................................... 425     .
  Diagnostic Procedure .......................................... 374      .        Component Inspection ......................................... 426       .
  Component Inspection ......................................... 375       .        Removal and Installation ...................................... 427      .
  Removal and Installation ..................................... 376       .       DTC P0447 EVAP CANISTER VENT CONTROL
DTC P0335 CKP SENSOR (POS) ......................... 377                   .       VALVE ..................................................................... 428
                                                                                                                                                             .
  Component Description ....................................... 377        .        Component Description ....................................... 428        .
  CONSULT-II Reference Value in Data Monitor Mode                                   CONSULT-II Reference Value in Data Monitor Mode
                                                                           . 377                                                                             .428
  On Board Diagnosis Logic ................................... 377         .        On Board Diagnosis Logic ................................... 428         .
  DTC Confirmation Procedure .............................. 378            .        DTC Confirmation Procedure ............................... 429           .
  Wiring Diagram .................................................... 379  .        Wiring Diagram .................................................... 430  .
  Diagnostic Procedure .......................................... 380      .        Diagnostic Procedure ........................................... 431     .
  Component Inspection ......................................... 383       .        Component Inspection ......................................... 433       .
  Removal and Installation ..................................... 383       .       DTC P0448 EVAP CANISTER VENT CONTROL
DTC P0340, P0345 CMP SENSOR (PHASE) ........ 384                           .       VALVE ..................................................................... 435
                                                                                                                                                             .
  Component Description ....................................... 384        .        Component Description ....................................... 435        .
  CONSULT-II Reference Value in Data Monitor Mode                                   CONSULT-II Reference Value in Data Monitor Mode
                                                                           . 384                                                                             .435
  On Board Diag nosis Logic .................................. 384         .        On Board Diagnosis Logic ................................... 435         .
  DTC Confirmation Procedure .............................. 385            .        DTC Confirmation Procedure ............................... 436           .
  Wiring Diagram .................................................... 386  .        Wiring Diagram .................................................... 437  .
  Diagnostic Procedure .......................................... 389      .        Diagnostic Procedure ........................................... 438     .
  Component Inspection ......................................... 393       .        Component Inspection ......................................... 440       .
  Removal and Installation ..................................... 393       .       DTC P0451 EVAP CONTROL SYSTEM PRESSURE
DTC P0420, P0430 THREE WAY CATALYST FUNC-                                          SENSOR ................................................................. 442
                                                                                                                                                             .
TION ....................................................................... 394
                                                                           .        Component Description ....................................... 442        .
  On Board Diagnosis Logic ................................... 394         .        CONSULT-II Reference Value in Data Monitor Mode

Revision: 2006 August                                                         EC-4                                                        2006 G35 Coupe
                                                                      . 442    Description ........................................................... 485
                                                                                                                                                         .
 On Board Diagnosis Logic .................................. 442      .        On Board Diagnosis Logic ................................... 485          .       A
 DTC Confirmation Procedure .............................. 443        .        DTC Confirmation Procedure .............................. 485             .
 Diagnostic Procedure .......................................... 443  .        Diagnostic Procedure .......................................... 486       .
 Component Inspection ........................................ 444    .       DTC P0507 ISC SYSTEM ...................................... 487            .       EC
DTC P0452 EVAP CONTROL SYSTEM PRESSURE                                         Description ........................................................... 487
                                                                                                                                                         .
SENSOR ................................................................ 445
                                                                      .        On Board Diagnosis Logic ................................... 487          .
 Component Description ....................................... 445    .        DTC Confirmation Procedure .............................. 487             .
 CONSULT-II Reference Value in Data Monitor Mode                               Diagnostic Procedure .......................................... 488       .       C
                                                                      . 445   DTC P0550 PSP SENSOR .................................... 489              .
 On Board Diagnosis Logic .................................. 445      .        Component Description ....................................... 489         .
 DTC Confirmation Procedure .............................. 446        .        CONSULT-II Reference Value in Data Monitor Mode                                   D
 Wiring Diagram ................................................... 447
                                                                      .                                                                                  . 489
 Diagnostic Procedure .......................................... 448  .        On Board Diagnosis Logic ................................... 489          .
 Component Inspection ........................................ 450    .        DTC Confirmation Procedure .............................. 489             .       E
DTC P0453 EVAP CONTROL SYSTEM PRESSURE                                         Wiring Diagram .................................................... 490   .
SENSOR ................................................................ 451
                                                                      .        Diagnostic Procedure .......................................... 491       .
 Component Description ....................................... 451    .        Component Inspection ......................................... 493        .
 CONSULT-II Reference Value in Data Monitor Mode                               Removal and Installation ..................................... 493        .       F
                                                                      . 451   DTC P0603 ECM POWER SUPPLY ...................... 494                      .
 On Board Diagnosis Logic .................................. 451      .        Component Description ....................................... 494         .
 DTC Confirmation Procedure .............................. 452        .        On Board Diagnosis Logic ................................... 494          .       G
 Wiring Diagram ................................................... 453
                                                                      .        DTC Confirmation Procedure .............................. 494             .
 Diagnostic Procedure .......................................... 454  .        Wiring Diagram .................................................... 495   .
 Component Inspection ........................................ 458    .        Diagnostic Procedure .......................................... 496       .       H
DTC P0455 EVAP CONTROL SYSTEM ............... 459                     .       DTC P0605 ECM .................................................... 498     .
 On Board Diagnosis Logic .................................. 459      .        Component Description ....................................... 498         .
 DTC Confirmation Procedure .............................. 460        .        On Board Diagnosis Logic ................................... 498          .
                                                                                                                                                                  I
 Diagnostic Procedure .......................................... 461  .        DTC Confirmation Procedure .............................. 498             .
DTC P0456 EVAP CONTROL SYSTEM ............... 467                     .        Diagnostic Procedure .......................................... 499       .
 On Board Diagnosis Logic .................................. 467      .       DTC P0643 SENSOR POWER SUPPLY ............... 501                          .
 DTC Confirmation Procedure .............................. 468        .        On Board Diagnosis Logic ................................... 501          .       J
 Overall Function Check ....................................... 469   .        DTC Confirmation Procedure .............................. 501             .
 Diagnostic Procedure .......................................... 469  .        Wiring Diagram .................................................... 502   .
DTC P0460 FUEL LEVEL SENSOR ..................... 476                 .        Diagnostic Procedure .......................................... 504       .       K
 Component Description ....................................... 476    .       DTC P0850 PNP SWITCH ..................................... 506             .
 On Board Diagnosis Logic .................................. 476      .        Component Description ....................................... 506         .
 DTC Confirmation Procedure .............................. 476        .        CONSULT-II Reference Value in Data Monitor Mode                                   L
 Diagnostic Procedure .......................................... 477  .                                                                                  . 506
 Removal and Installation ..................................... 477   .        On Board Diagnosis Logic ................................... 506          .
DTC P0461 FUEL LEVEL SENSOR ..................... 478                 .        DTC Confirmation Procedure .............................. 506             .
 Component Description ....................................... 478    .        Overall Function Check ....................................... 507        .       M
 On Board Diagnosis Logic .................................. 478      .        Wiring Diagram .................................................... 508   .
 Overall Function Check ....................................... 478   .        Diagnostic Procedure .......................................... 511       .
 Diagnostic Procedure .......................................... 479  .       DTC P1078 P1084 EVT CONTROL POSITION SEN-
 Removal and Installation ..................................... 479   .       SOR ........................................................................ 514
                                                                                                                                                         .
DTC P0462, P0463 FUEL LEVEL SENSOR ......... 480                      .        Component Description ....................................... 514         .
 Component Description ....................................... 480    .        CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic .................................. 480      .                                                                                  . 514
 DTC Confirmation Procedure .............................. 480        .        On Board Diagnosis Logic ................................... 514          .
 Diagnostic Procedure .......................................... 481  .        DTC Confirmation Procedure .............................. 514             .
 Removal and Installation ..................................... 481   .        Wiring Diagram .................................................... 515   .
DTC P0500 VSS .................................................... 482.        Diagnostic Procedure .......................................... 518       .
 Description .......................................................... 482
                                                                      .        Component Inspection ......................................... 521        .
 On Board Diagnosis Logic .................................. 482      .        Removal and Installation ..................................... 521        .
 DTC Confirmation Procedure .............................. 482        .       DTC P1148, P1168 CLOSED LOOP CONTROL ... 522                               .
 Overall Function Check ....................................... 484   .        On Board Diagnosis Logic ................................... 522          .
 Diagnostic Procedure .......................................... 484  .       DTC P1211 TCS CONTROL UNIT ......................... 523                   .
DTC P0506 ISC SYSTEM ...................................... 485       .        Description ........................................................... 523
                                                                                                                                                         .

Revision: 2006 August                                                    EC-5                                                        2006 G35 Coupe
 On Board Diagnosis Logic ................................... 523      .        On Board Diagnosis Logic ................................... 567        .
 DTC Confirmation Procedure .............................. 523         .        Diagnostic Procedure ........................................... 567    .
 Diagnostic Procedure .......................................... 523   .       DTC P1805 BRAKE SWITCH ................................ 568              .
DTC P1212 TCS COMMUNICATION LINE ........... 524                       .        Description ........................................................... 568
                                                                                                                                                        .
 Description ........................................................... 524
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic ................................... 524      .                                                                                .568
 DTC Confirmation Procedure .............................. 524         .        On Board Diagnosis Logic ................................... 568        .
 Diagnostic Procedure .......................................... 524   .        DTC Confirmation Procedure ............................... 568          .
DTC P1217 ENGINE OVER TEMPERATURE ....... 525                          .        Wiring Diagram .................................................... 569 .
 Description ........................................................... 525
                                                                       .        Diagnostic Procedure ........................................... 570    .
 CONSULT-II Reference Value in Data Monitor Mode                                Component Inspection ......................................... 572      .
                                                                       . 526   DTC P2100, P2103 THROTTLE CONTROL MOTOR
 On Board Diagnosis Logic ................................... 526      .       RELAY .................................................................... 573
                                                                                                                                                        .
 Overall Function Check ....................................... 527    .        Component Description ....................................... 573       .
 Wiring Diagram .................................................... 529
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 531   .                                                                                .573
 Main 12 Causes of Overheating .......................... 535          .        On Board Diagnosis Logic ................................... 573        .
 Component Inspection ......................................... 536    .        DTC Confirmation Procedure ............................... 573          .
DTC P1225 TP SENSOR ....................................... 537        .        Wiring Diagram .................................................... 575 .
 Component Description ....................................... 537     .        Diagnostic Procedure ........................................... 576    .
 On Board Diagnosis Logic ................................... 537      .       DTC P2101 ELECTRIC THROTTLE CONTROL
 DTC Confirmation Procedure .............................. 537         .       FUNCTION ............................................................. 579
                                                                                                                                                        .
 Diagnostic Procedure .......................................... 538   .        Description ........................................................... 579
                                                                                                                                                        .
 Removal and Installation ..................................... 538    .        On Board Diagnosis Logic ................................... 579        .
DTC P1226 TP SENSOR ....................................... 539        .        DTC Confirmation Procedure ............................... 579          .
 Component Description ....................................... 539     .        Wiring Diagram .................................................... 580 .
 On Board Diagnosis Logic ................................... 539      .        Diagnostic Procedure ........................................... 581    .
 DTC Confirmation Procedure .............................. 539         .        Component Inspection ......................................... 584      .
 Diagnostic Procedure .......................................... 540   .        Removal and Installation ...................................... 584     .
 Removal and Installation ..................................... 540    .       DTC P2118 THROTTLE CONTROL MOTOR ........ 585                            .
DTC P1564 ASCD STEERING SWITCH ............... 541                     .        Component Description ....................................... 585       .
 Component Description ....................................... 541     .        On Board Diagnosis Logic ................................... 585        .
 CONSULT-II Reference Value in Data Monitor Mode                                DTC Confirmation Procedure ............................... 585          .
                                                                       . 541    Wiring Diagram .................................................... 586 .
 On Board Diagnosis Logic ................................... 542      .        Diagnostic Procedure ........................................... 587    .
 DTC Confirmation Procedure .............................. 542         .        Component Inspection ......................................... 588      .
 Wiring Diagram .................................................... 543
                                                                       .        Removal and Installation ...................................... 589     .
 Diagnostic Procedure .......................................... 545   .       DTC P2119 ELECTRIC THROTTLE CONTROL
 Component Inspection ......................................... 548    .       ACTUATOR ............................................................ 590.
DTC P1572 ASCD BRAKE SWITCH ..................... 549                  .        Component Description ....................................... 590       .
 Component Description ....................................... 549     .        On Board Diagnosis Logic ................................... 590        .
 CONSULT-II Reference Value in Data Monitor Mode                                DTC Confirmation Procedure ............................... 590          .
                                                                       . 549    Diagnostic Procedure ........................................... 591    .
 On Board Diagnosis Logic ................................... 549      .       DTC P2122, P2123 APP SENSOR ........................ 592                 .
 DTC Confirmation Procedure .............................. 551         .        Component Description ....................................... 592       .
 Wiring Diagram .................................................... 552
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 554   .                                                                                .592
 Component Inspection ......................................... 564    .        On Board Diagnosis Logic ................................... 592        .
DTC P1574 ASCD VEHICLE SPEED SENSOR .... 565                           .        DTC Confirmation Procedure ............................... 593          .
 Component Description ....................................... 565     .        Wiring Diagram .................................................... 594 .
 On Board Diagnosis Logic ................................... 565      .        Diagnostic Procedure ........................................... 595    .
 DTC Confirmation Procedure .............................. 565         .        Component Inspection ......................................... 597      .
 Diagnostic Procedure .......................................... 566   .        Removal and Installation ...................................... 598     .
DTC P1715 INPUT SPEED SENSOR (TURBINE                                          DTC P2127, P2128 APP SENSOR ........................ 599                 .
REVOLUTION SENSOR) ....................................... 567         .        Component Description ....................................... 599       .
 Description ........................................................... 567
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 CONSULT-II Reference Value in Data Monitor Mode                                                                                                        .599
                                                                       . 567    On Board Diagnosis Logic ................................... 599        .
                                                                                DTC Confirmation Procedure ............................... 600          .

Revision: 2006 August                                                     EC-6                                                       2006 G35 Coupe
 Wiring Diagram ................................................... 601
                                                                  .         Description ........................................................... 650
                                                                                                                                                  .
 Diagnostic Procedure .......................................... 602
                                                                  .         CONSULT-II Reference Value in Data Monitor Mode                               A
 Component Inspection ........................................ 605.                                                                               . 650
 Removal and Installation ..................................... 605
                                                                  .         Diagnostic Procedure .......................................... 650   .
DTC P2135 TP SENSOR ....................................... 606   .       FUEL INJECTOR ................................................... 652   .       EC
 Component Description ....................................... 606.         Component Description ....................................... 652     .
 CONSULT-II Reference Value in Data Monitor Mode                            CONSULT-II Reference Value in Data Monitor Mode
                                                                  . 606                                                                           . 652
 On Board Diagnosis Logic .................................. 606  .         Wiring Diagram .................................................... 653
                                                                                                                                                  .       C
 DTC Confirmation Procedure .............................. 607    .         Diagnostic Procedure .......................................... 654   .
 Wiring Diagram ................................................... 608
                                                                  .         Component Inspection ......................................... 658    .
 Diagnostic Procedure .......................................... 609
                                                                  .         Removal and Installation ..................................... 658    .       D
 Component Inspection ........................................ 612.       FUEL PUMP ........................................................... 659
                                                                                                                                                  .
 Removal and Installation ..................................... 612
                                                                  .         Description ........................................................... 659
                                                                                                                                                  .
DTC P2138 APP SENSOR .................................... 613     .         CONSULT-II Reference Value in Data Monitor Mode                               E
 Component Description ....................................... 613.                                                                               . 659
 CONSULT-II Reference Value in Data Monitor Mod



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