Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti FX45 FX35 2003-2005 Approved FX45_35-S50-2004.5 ec

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ENGINE CONTROL SYSTEM


B ENGINE

                                                                                                                                                                       A




                                                                           ENGINE CONTROL SYSTEM
                                                                                                       SECTION                    EC                                   EC



                                                                                                                                                                       C


                                                                                                                                                                       D


                                                                                                                                                                       E
                                                                    CONTENTS
                                 VQ35DE                                              TROUBLE DIAGNOSIS ........................................... 76          .       F
                                                                                      Trouble Diagnosis Introduction .............................. 76         .
INDEX FOR DTC ..................................................... 15      .         DTC Inspection Priority Chart ................................ 80        .
  Alphabetical Index ................................................. 15   .         Fail-Safe Chart ...................................................... 82.       G
  DTC No. Index ...................................................... 19   .         Basic Inspection .................................................... 83 .
PRECAUTIONS ....................................................... 23      .         Symptom Matrix Chart ........................................... 88      .
  Precautions for Supplemental Restraint System                                       Engine Control Component Parts Location ........... 92                   .
  (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                                                                                                              H
                                                                                      Circuit Diagram ...................................................... 98.
  SIONER" ............................................................... 23.         ECM Harness Connector Terminal Layout .......... 100                     .
  On Board Diagnostic (OBD) System of Engine and                                      ECM Terminals and Reference Value .................. 100                 .
  A/T ......................................................................... 23
                                                                            .         CONSULT-II Function .......................................... 109       .        I
  Precaution ............................................................. 23
                                                                            .         Generic Scan Tool (GST) Function ...................... 121              .
  Wiring Diagrams and Trouble Diagnosis ............... 26                  .         CONSULT-II Reference Value in Data Monitor .... 124                      .
PREPARATION ........................................................ 27     .         Major Sensor Reference Graph in Data Monitor                                     J
  Special Service Tools ............................................ 27     .         Mode .................................................................... 128
                                                                                                                                                               .
  Commercial Service Tools ..................................... 28         .        TROUBLE DIAGNOSIS - SPECIFICATION VALUE 130                               .
ENGINE CONTROL SYSTEM ................................. 29                  .         Description ........................................................... 130
                                                                                                                                                               .
  System Diagram .................................................... 29    .                                                                                          K
                                                                                      Testing Condition ................................................. 130  .
  Vacuum Hose Drawing .......................................... 30         .         Inspection Procedure ........................................... 130     .
  System Chart ........................................................ 31  .         Diagnostic Procedure .......................................... 131      .
  Multiport Fuel Injection (MFI) System ................... 32              .        TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-                                          L
  Electronic Ignition (EI) System .............................. 34         .        DENT ...................................................................... 134
                                                                                                                                                               .
  Air Conditioning Cut Control .................................. 35        .         Description ........................................................... 134
                                                                                                                                                               .
  Fuel Cut Control (at No Load and High Engine                                        Diagnostic Procedure .......................................... 134      .       M
  Speed) ................................................................... 35
                                                                            .        POWER SUPPLY AND GROUND CIRCUIT .......... 135                            .
  CAN communication ............................................. 36        .         Wiring Diagram .................................................... 135  .
BASIC SERVICE PROCEDURE ............................. 37                    .         Diagnostic Procedure .......................................... 136      .
  Idle Speed and Ignition Timing Check ................... 37               .         Ground Inspection ............................................... 140    .
  Idle Speed/Ignition Timing/Idle Mixture Ratio                                      DTC U1000, U1001 CAN COMMUNICATION LINE. 141
  Adjustment ............................................................ 38.         Description ........................................................... 141
                                                                                                                                                               .
  Accelerator Pedal Released Position Learning ..... 49                     .         On Board Diagnosis Logic ................................... 141         .
  Throttle Valve Closed Position Learning ............... 49                .         DTC Confirmation Procedure .............................. 141            .
  Idle Air Volume Learning ....................................... 49       .         Wiring Diagram .................................................... 142  .
  Fuel Pressure Check ............................................. 51      .         Diagnostic Procedure .......................................... 143      .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 53                             .        DTC P0011, P0021 IVT CONTROL ....................... 144                  .
  Introduction ........................................................... 53
                                                                            .         Description ........................................................... 144
                                                                                                                                                               .
  Two Trip Detection Logic ....................................... 53       .         CONSULT-II Reference Value in Data Monitor Mode
  Emission-related Diagnostic Information ............... 54                .                                                                                  . 144
  IVIS (Infiniti Vehicle Immobilizer System -- NATS) 68                     ...       On Board Diagnosis Logic ................................... 145         .
  Malfunction Indicator Lamp (MIL) .......................... 68            .
  OBD System Operation Chart ............................... 71             .

Revision: 2004 November                                                        EC-1                                                      2004.5 FX35/FX45
 DTC Confirmation Procedure .............................. 145         .       DTC P0125 ECT SENSOR ..................................... 187       .
 Diagnostic Procedure .......................................... 146   .        Component Description ....................................... 187   .
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER 147                        .        On Board Diagnosis Logic ................................... 187    .
 Description ........................................................... 147
                                                                       .        DTC Confirmation Procedure ............................... 188      .
 CONSULT-II Reference Value in Data Monitor Mode                                Diagnostic Procedure ........................................... 188.
                                                                       . 147    Component Inspection ......................................... 189  .
 On Board Diagnosis Logic ................................... 147      .        Removal and Installation ...................................... 189 .
 DTC Confirmation Procedure .............................. 148         .       DTC P0127 IAT SENSOR ....................................... 190     .
 Wiring Diagram .................................................... 149
                                                                       .        Component Description ....................................... 190   .
 Diagnostic Procedure .......................................... 152   .        On Board Diagnosis Logic ................................... 190    .
 Component Inspection ......................................... 154    .        DTC Confirmation Procedure ............................... 190      .
 Removal and Installation ..................................... 154    .        Diagnostic Procedure ........................................... 191.
DTC P0101 MAF SENSOR .................................... 155          .        Component Inspection ......................................... 192  .
 Component Description ....................................... 155     .        Removal and Installation ...................................... 192 .
 CONSULT-II Reference Value in Data Monitor Mode                               DTC P0128 THERMOSTAT FUNCTION ................ 193                   .
                                                                       . 155    On Board Diagnosis Logic ................................... 193    .
 On Board Diagnosis Logic ................................... 155      .        DTC Confirmation Procedure ............................... 193      .
 DTC Confirmation Procedure .............................. 156         .        Diagnostic Procedure ........................................... 193.
 Overall Function Check ....................................... 157    .        Component Inspection ......................................... 194  .
 Wiring Diagram .................................................... 158
                                                                       .        Removal and Installation ...................................... 194 .
 Diagnostic Procedure .......................................... 159   .       DTC P0138, P0158 HO2S2 .................................... 195      .
 Component Inspection ......................................... 162    .        Component Description ....................................... 195   .
 Removal and Installation ..................................... 162    .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0102, P0103 MAF SENSOR ........................ 163               .                                                                            .195
 Component Description ....................................... 163     .        On Board Diagnosis Logic ................................... 195    .
 CONSULT-II Reference Value in Data Monitor Mode                                DTC Confirmation Procedure ............................... 196      .
                                                                       . 163    Wiring Diagram .................................................... 197
                                                                                                                                                    .
 On Board Diagnosis Logic ................................... 163      .        Diagnostic Procedure ........................................... 200.
 DTC Confirmation Procedure .............................. 164         .        Component Inspection ......................................... 202  .
 Wiring Diagram .................................................... 165
                                                                       .        Removal and Installation ...................................... 203 .
 Diagnostic Procedure .......................................... 166   .       DTC P0139, P0159 HO2S2 .................................... 204      .
 Component Inspection ......................................... 169    .        Component Description ....................................... 204   .
 Removal and Installation ..................................... 169    .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0112, P0113 IAT SENSOR .......................... 170             .                                                                            .204
 Component Description ....................................... 170     .        On Board Diagnosis Logic ................................... 204    .
 On Board Diagnosis Logic ................................... 170      .        DTC Confirmation Procedure ............................... 205      .
 DTC Confirmation Procedure .............................. 170         .        Overall Function Check ........................................ 205 .
 Wiring Diagram .................................................... 172
                                                                       .        Wiring Diagram .................................................... 207
                                                                                                                                                    .
 Diagnostic Procedure .......................................... 173   .        Diagnostic Procedure ........................................... 210.
 Component Inspection ......................................... 174    .        Component Inspection ......................................... 212  .
 Removal and Installation ..................................... 174    .        Removal and Installation ...................................... 214 .
DTC P0117, P0118 ECT SENSOR ......................... 175              .       DTC P0171, P0174 FUEL INJECTION SYSTEM
 Component Description ....................................... 175     .       FUNCTION ............................................................. 215
                                                                                                                                                    .
 On Board Diagnosis Logic ................................... 175      .        On Board Diagnosis Logic ................................... 215    .
 DTC Confirmation Procedure .............................. 176         .        DTC Confirmation Procedure ............................... 215      .
 Wiring Diagram .................................................... 177
                                                                       .        Wiring Diagram .................................................... 217
                                                                                                                                                    .
 Diagnostic Procedure .......................................... 178   .        Diagnostic Procedure ........................................... 219.
 Component Inspection ......................................... 179    .       DTC P0172, P0175 FUEL INJECTION SYSTEM
 Removal and Installation ..................................... 179    .       FUNCTION ............................................................. 224
                                                                                                                                                    .
DTC P0122, P0123 TP SENSOR ........................... 180             .        On Board Diagnosis Logic ................................... 224    .
 Component Description ....................................... 180     .        DTC Confirmation Procedure ............................... 224      .
 CONSULT-II Reference Value in Data Monitor Mode                                Wiring Diagram .................................................... 226
                                                                                                                                                    .
                                                                       . 180    Diagnostic Procedure ........................................... 228.
 On Board Diagnosis Logic ................................... 180      .       DTC P0181 FTT SENSOR ..................................... 232       .
 DTC Confirmation Procedure .............................. 181         .        Component Description ....................................... 232   .
 Wiring Diagram .................................................... 182
                                                                       .        On Board Diagnosis Logic ................................... 232    .
 Diagnostic Procedure .......................................... 183   .        DTC Confirmation Procedure ............................... 232      .
 Component Inspection ......................................... 186    .        Wiring Diagram .................................................... 234
                                                                                                                                                    .
 Removal and Installation ..................................... 186    .        Diagnostic Procedure ........................................... 235.

Revision: 2004 November                                                   EC-2                                                  2004.5 FX35/FX45
  Component Inspection ........................................ 236        .       DTC P0441 EVAP CONTROL SYSTEM ................ 280                       .
  Removal and Installation ..................................... 237       .        System Description .............................................. 280   .       A
DTC P0182, P0183 FTT SENSOR ........................ 238                   .        On Board Diagnosis Logic ................................... 280        .
  Component Description ....................................... 238        .        DTC Confirmation Procedure .............................. 280           .
  On Board Diagnosis Logic .................................. 238          .        Overall Function Check ....................................... 281      .       EC
  DTC Confirmation Procedure .............................. 238            .        Diagnostic Procedure .......................................... 282     .
  Wiring Diagram ................................................... 239   .       DTC P0442 EVAP CONTROL SYSTEM ................ 285                       .
  Diagnostic Procedure .......................................... 240      .        On Board Diagnosis Logic ................................... 285        .
  Component Inspection ........................................ 241        .        DTC Confirmation Procedure .............................. 286           .       C
  Removal and Installation ..................................... 242       .        Diagnostic Procedure .......................................... 287     .
DTC P0222, P0223 TP SENSOR .......................... 243                  .       DTC P0444, P0445 EVAP CANISTER PURGE VOL-
  Component Description ....................................... 243        .       UME CONTROL SOLENOID VALVE ..................... 294                     .       D
  CONSULT-II Reference Value in Data Monitor Mode                                   Description ........................................................... 294
                                                                                                                                                            .
                                                                           . 243    CONSULT-II Reference Value in Data Monitor Mode
  On Board Diagnosis Logic .................................. 243          .                                                                                . 294   E
  DTC Confirmation Procedure .............................. 244            .        On Board Diagnosis Logic ................................... 295        .
  Wiring Diagram ................................................... 245   .        DTC Confirmation Procedure .............................. 295           .
  Diagnostic Procedure .......................................... 246      .        Wiring Diagram .................................................... 296 .
  Component Inspection ........................................ 249        .        Diagnostic Procedure .......................................... 298     .       F
  Removal and Installation ..................................... 249       .        Component Inspection ......................................... 299      .
DTC P0300 - P0306 MULTIPLE CYLINDER MIS-                                            Removal and Installation ..................................... 300      .
FIRE, NO. 1 - 6 CYLINDER MISFIRE .................... 250                  .       DTC P0447 EVAP CANISTER VENT CONTROL                                             G
  On Board Diagnosis Logic .................................. 250          .       VALVE .................................................................... 301
                                                                                                                                                            .
  DTC Confirmation Procedure .............................. 250            .        Component Description ....................................... 301       .
  Diagnostic Procedure .......................................... 251      .        CONSULT-II Reference Value in Data Monitor Mode                                 H
DTC P0327, P0328 KS .......................................... 257         .                                                                                . 301
  Component Description ....................................... 257        .        On Board Diagnosis Logic ................................... 301        .
  On Board Diagnosis Logic .................................. 257          .        DTC Confirmation Procedure .............................. 302           .
                                                                                                                                                                     I
  DTC Confirmation Procedure .............................. 257            .        Wiring Diagram .................................................... 303 .
  Wiring Diagram ................................................... 258   .        Diagnostic Procedure .......................................... 304     .
  Diagnostic Procedure .......................................... 259      .        Component Inspection ......................................... 306      .
  Component Inspection ........................................ 260        .       DTC P0451 EVAP CONTROL SYSTEM PRESSURE                                           J
  Removal and Installation ..................................... 261       .       SENSOR ................................................................ 308
                                                                                                                                                            .
DTC P0335 CKP SENSOR (POS) ......................... 262                   .        Component Description ....................................... 308       .
  Component Description ....................................... 262        .        CONSULT-II Reference Value in Data Monitor Mode                                 K
  CONSULT-II Reference Value in Data Monitor Mode                                                                                                           . 308
                                                                           . 262    On Board Diagnosis Logic ................................... 308        .
  On Board Diagnosis Logic .................................. 262          .        DTC Confirmation Procedure .............................. 309           .       L
  DTC Confirmation Procedure .............................. 262            .        Diagnostic Procedure .......................................... 309     .
  Wiring Diagram ................................................... 263   .        Component Inspection ......................................... 310      .
  Diagnostic Procedure .......................................... 264      .       DTC P0452 EVAP CONTROL SYSTEM PRESSURE
  Component Inspection ........................................ 267        .       SENSOR ................................................................ 311
                                                                                                                                                            .       M
  Removal and Installation ..................................... 267       .        Component Description ....................................... 311       .
DTC P0340, P0345 CMP SENSOR (PHASE) ....... 268                            .        CONSULT-II Reference Value in Data Monitor Mode
  Component Description ....................................... 268        .                                                                                . 311
  CONSULT-II Reference Value in Data Monitor Mode                                   On Board Diagnosis Logic ................................... 311        .
                                                                           . 268    DTC Confirmation Procedure .............................. 312           .
  On Board Diagnosis Logic .................................. 268          .        Wiring Diagram .................................................... 313 .
  DTC Confirmation Procedure .............................. 268            .        Diagnostic Procedure .......................................... 314     .
  Wiring Diagram ................................................... 269   .        Component Inspection ......................................... 316      .
  Diagnostic Procedure .......................................... 272      .       DTC P0453 EVAP CONTROL SYSTEM PRESSURE
  Component Inspection ........................................ 275        .       SENSOR ................................................................ 317
                                                                                                                                                            .
  Removal and Installation ..................................... 275       .        Component Description ....................................... 317       .
DTC P0420, P0430 THREE WAY CATALYST FUNC-                                           CONSULT-II Reference Value in Data Monitor Mode
TION ....................................................................... 276
                                                                           .                                                                                . 317
  On Board Diagnosis Logic .................................. 276          .        On Board Diagnosis Logic ................................... 317        .
  DTC Confirmation Procedure .............................. 276            .        DTC Confirmation Procedure .............................. 318           .
  Overall Function Check ....................................... 277       .        Wiring Diagram .................................................... 319 .
  Diagnostic Procedure .......................................... 278      .

Revision: 2004 November                                                      EC-3                                                     2004.5 FX35/FX45
 Diagnostic Procedure .......................................... 320   .        DTC Confirmation Procedure ............................... 360           .
 Component Inspection ......................................... 324    .        Diagnostic Procedure ........................................... 361     .
DTC P0455 EVAP CONTROL SYSTEM ................ 325                     .       DTC P1031, P1032, P1051, P1052 A/F SENSOR 1
 On Board Diagnosis Logic ................................... 325      .       HEATER .................................................................. 363
                                                                                                                                                         .
 DTC Confirmation Procedure .............................. 326         .        Description ........................................................... 363
                                                                                                                                                         .
 Diagnostic Procedure .......................................... 327   .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0456 EVAP CONTROL SYSTEM ................ 333                     .                                                                                 .363
 On Board Diagnosis Logic ................................... 333      .        On Board Diagnosis Logic ................................... 363         .
 DTC Confirmation Procedure .............................. 334         .        DTC Confirmation Procedure ............................... 363           .
 Overall Function Check ....................................... 335    .        Wiring Diagram .................................................... 365  .
 Diagnostic Procedure .......................................... 336   .        Diagnostic Procedure ........................................... 368     .
DTC P0460 FUEL LEVEL SENSOR ...................... 343                 .        Component Inspection ......................................... 370       .
 Component Description ....................................... 343     .        Removal and Installation ...................................... 370      .
 On Board Diagnosis Logic ................................... 343      .       DTC P1065 ECM POWER SUPPLY ....................... 371                    .
 DTC Confirmation Procedure .............................. 343         .        Component Description ....................................... 371        .
 Diagnostic Procedure .......................................... 344   .        On Board Diagnosis Logic ................................... 371         .
 Removal and Installation ..................................... 344    .        DTC Confirmation Procedure ............................... 371           .
DTC P0461 FUEL LEVEL SENSOR ...................... 345                 .        Wiring Diagram .................................................... 372  .
 Component Description ....................................... 345     .        Diagnostic Procedure ........................................... 373     .
 On Board Diagnosis Logic ................................... 345      .       DTC P1111, P1136 IVT CONTROL SOLENOID
 Overall Function Check ....................................... 345    .       VALVE ..................................................................... 375
                                                                                                                                                         .
 Diagnostic Procedure .......................................... 346   .        Component Description ....................................... 375        .
 Removal and Installation ..................................... 346    .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0462, P0463 FUEL LEVEL SENSOR ......... 347                       .                                                                                 .375
 Component Description ....................................... 347     .        On Board Diagnosis Logic ................................... 375         .
 On Board Diagnosis Logic ................................... 347      .        DTC Confirmation Procedure ............................... 375           .
 DTC Confirmation Procedure .............................. 347         .        Wiring Diagram .................................................... 376  .
 Diagnostic Procedure .......................................... 348   .        Diagnostic Procedure ........................................... 379     .
 Removal and Installation ..................................... 348    .        Component Inspection ......................................... 381       .
DTC P0500 VSS ..................................................... 349.        Removal and Installation ...................................... 381      .
 Description ........................................................... 349
                                                                       .       DTC P1121 ELECTRIC THROTTLE CONTROL
 On Board Diagnosis Logic ................................... 349      .       ACTUATOR ............................................................ 382 .
 DTC Confirmation Procedure .............................. 349         .        Component Description ....................................... 382        .
 Overall Function Check ....................................... 349    .        On Board Diagnosis Logic ................................... 382         .
 Diagnostic Procedure .......................................... 350   .        DTC Confirmation Procedure ............................... 382           .
DTC P0506 ISC SYSTEM ...................................... 351        .        Diagnostic Procedure ........................................... 383     .
 Description ........................................................... 351
                                                                       .       DTC P1122 ELECTRIC THROTTLE CONTROL
 On Board Diagnosis Logic ................................... 351      .       FUNCTION ............................................................. 384.
 DTC Confirmation Procedure .............................. 351         .        Description ........................................................... 384
                                                                                                                                                         .
 Diagnostic Procedure .......................................... 352   .        On Board Diagnosis Logic ................................... 384         .
DTC P0507 ISC SYSTEM ...................................... 353        .        DTC Confirmation Procedure ............................... 384           .
 Description ........................................................... 353
                                                                       .        Wiring Diagram .................................................... 385  .
 On Board Diagnosis Logic ................................... 353      .        Diagnostic Procedure ........................................... 386     .
 DTC Confirmation Procedure .............................. 353         .        Component Inspection ......................................... 389       .
 Diagnostic Procedure .......................................... 354   .        Removal and Installation ...................................... 389      .
DTC P0550 PSP SENSOR ..................................... 355         .       DTC P1124, P1126 THROTTLE CONTROL MOTOR
 Component Description ....................................... 355     .       RELAY .................................................................... 390
                                                                                                                                                         .
 CONSULT-II Reference Value in Data Monitor Mode                                Component Description ....................................... 390        .
                                                                       . 355    CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic ................................... 355      .                                                                                 .390
 DTC Confirmation Procedure .............................. 355         .        On Board Diagnosis Logic ................................... 390         .
 Wiring Diagram .................................................... 356
                                                                       .        DTC Confirmation Procedure ............................... 390           .
 Diagnostic Procedure .......................................... 357   .        Wiring Diagram .................................................... 392  .
 Component Inspection ......................................... 359    .        Diagnostic Procedure ........................................... 393     .
 Removal and Installation ..................................... 359    .       DTC P1128 THROTTLE CONTROL MOTOR ........ 395                             .
DTC P0605 ECM .................................................... 360 .        Component Description ....................................... 395        .
 Component Description ....................................... 360     .        On Board Diagnosis Logic ................................... 395         .
 On Board Diagnosis Logic ................................... 360      .        DTC Confirmation Procedure ............................... 395           .
                                                                                Wiring Diagram .................................................... 396  .

Revision: 2004 November                                                   EC-4                                                     2004.5 FX35/FX45
 Diagnostic Procedure .......................................... 397  .       DTC P1229 SENSOR POWER SUPPLY ............... 441                  .
 Component Inspection ........................................ 398    .        On Board Diagnosis Logic ................................... 441  .       A
 Removal and Installation ..................................... 399   .        DTC Confirmation Procedure .............................. 441     .
DTC P1146, P1166 HO2S2 .................................... 400       .        Wiring Diagram .................................................... 442
                                                                                                                                                 .
 Component Description ....................................... 400    .        Diagnostic Procedure .......................................... 443
                                                                                                                                                 .       EC
 CONSULT-II Reference Value in Data Monitor Mode                              DTC P1271, P1281 A/F SENSOR 1 ...................... 446           .
                                                                      . 400    Component Description ....................................... 446 .
 On Board Diagnosis Logic .................................. 400      .        CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 401        .                                                                          . 446   C
 Overall Function Check ....................................... 401   .        On Board Diagnosis Logic ................................... 446  .
 Wiring Diagram ................................................... 403
                                                                      .        DTC Confirmation Procedure .............................. 446     .
 Diagnostic Procedure .......................................... 406  .        Wiring Diagram .................................................... 448
                                                                                                                                                 .       D
 Component Inspection ........................................ 408    .        Diagnostic Procedure .......................................... 451
                                                                                                                                                 .
 Removal and Installation ..................................... 410   .        Removal and Installation ..................................... 454.
DTC P1147, P1167 HO2S2 .....................................411       .       DTC P1272, P1282 A/F SENSOR 1 ...................... 455           .       E
 Component Description ........................................411    .        Component Description ....................................... 455 .
 CONSULT-II Reference Value in Data Monitor Mode                               CONSULT-II Reference Value in Data Monitor Mode
                                                                      ..411                                                                      . 455
 On Board Diagnosis Logic ...................................411      .        On Board Diagnosis Logic ................................... 455  .       F
 DTC Confirmation Procedure .............................. 412        .        DTC Confirmation Procedure .............................. 455     .
 Overall Function Check ....................................... 412   .        Wiring Diagram .................................................... 457
                                                                                                                                                 .
 Wiring Diagram ................................................... 414
                                                                      .        Diagnostic Procedure .......................................... 460
                                                                                                                                                 .       G
 Diagnostic Procedure .......................................... 417  .        Removal and Installation ..................................... 463.
 Component Inspection ........................................ 419    .       DTC P1273, P1283 A/F SENSOR 1 ...................... 464           .
 Removal and Installation ..................................... 421   .        Component Description ....................................... 464 .       H
DTC P1148, P1168 CLOSED LOOP CONTROL ... 422                          .        CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic .................................. 422      .                                                                          . 464
DTC P1211 TCS CONTROL UNIT ........................ 423               .        On Board Diagnosis Logic ................................... 464  .
                                                                                                                                                          I
 Description .......................................................... 423
                                                                      .        DTC Confirmation Procedure .............................. 464     .
 On Board Diagnosis Logic .................................. 423      .        Wiring Diagram .................................................... 466
                                                                                                                                                 .
 DTC Confirmation Procedure .............................. 423        .        Diagnostic Procedure .......................................... 469
                                                                                                                                                 .
 Diagnostic Procedure .......................................... 423  .        Removal and Installation ..................................... 473.       J
DTC P1212 TCS COMMUNICATION LINE ........... 424                      .       DTC P1274, P1284 A/F SENSOR 1 ...................... 474           .
 Description .......................................................... 424
                                                                      .        Component Description ....................................... 474 .
 On Board Diagnosis Logic .................................. 424      .        CONSULT-II Reference Value in Data Monitor Mode                           K
 DTC Confirmation Procedure .............................. 424        .                                                                          . 474
 Diagnostic Procedure .......................................... 424  .        On Board Diagnosis Logic ................................... 474  .
DTC P1217 ENGINE OVER TEMPERATURE ...... 425                          .        DTC Confirmation Procedure .............................. 474     .       L
 Description .......................................................... 425
                                                                      .        Wiring Diagram .................................................... 476
                                                                                                                                                 .
 CONSULT-II Reference Value in Data Monitor Mode                               Diagnostic Procedure .......................................... 479
                                                                                                                                                 .
                                                                      . 427    Removal and Installation ..................................... 483.
 On Board Diagnosis Logic .................................. 427      .       DTC P1276, P1286 A/F SENSOR 1 ...................... 484           .       M
 Overall Function Check ....................................... 427   .        Component Description ....................................... 484 .
 Wiring Diagram ................................................... 429
                                                                      .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 431  .                                                                          . 484
 Main 12 Causes of Overheating .......................... 436         .        On Board Diagnosis Logic ................................... 484  .
 Component Inspection ........................................ 436    .        DTC Confirmation Procedure .............................. 484     .
DTC P1225 TP SENSOR ....................................... 437       .        Overall Function Check ....................................... 485.
 Component Description ....................................... 437    .        Wiring Diagram .................................................... 487
                                                                                                                                                 .
 On Board Diagnosis Logic .................................. 437      .        Diagnostic Procedure .......................................... 490
                                                                                                                                                 .
 DTC Confirmation Procedure .............................. 437        .        Removal and Installation ..................................... 493.
 Diagnostic Procedure .......................................... 438  .       DTC P1278, P1288 A/F SENSOR 1 ...................... 494           .
 Removal and Installation ..................................... 438   .        Component Description ....................................... 494 .
DTC P1226 TP SENSOR ....................................... 439       .        CONSULT-II Reference Value in Data Monitor Mode
 Component Description ....................................... 439    .                                                                          . 494
 On Board Diagnosis Logic .................................. 439      .        On Board Diagnosis Logic ................................... 494  .
 DTC Confirmation Procedure .............................. 439        .        DTC Confirmation Procedure .............................. 495     .
 Diagnostic Procedure .......................................... 440  .        Wiring Diagram .................................................... 497
                                                                                                                                                 .
 Removal and Installation ..................................... 440   .

Revision: 2004 November                                                  EC-5                                                2004.5 FX35/FX45
 Diagnostic Procedure .......................................... 500     .        DTC Confirmation Procedure ............................... 547        .
 Removal and Installation ..................................... 505      .        Wiring Diagram .................................................... 548
                                                                                                                                                        .
DTC P1279, P1289 A/F SENSOR 1 ....................... 506                .        Diagnostic Procedure ........................................... 549  .
 Component Description ....................................... 506       .        Component Inspection ......................................... 554    .
 CONSULT-II Reference Value in Data Monitor Mode                                 DTC P1572 ASCD BRAKE SWITCH ..................... 555                  .
                                                                         . 506    Component Description ....................................... 555     .
 On Board Diagnosis Logic ................................... 506        .        CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 507           .                                                                              .555
 Wiring Diagram .................................................... 509 .        On Board Diagnosis Logic ................................... 555      .
 Diagnostic Procedure .......................................... 512     .        DTC Confirmation Procedure ............................... 556        .
 Removal and Installation ..................................... 517      .        Wiring Diagram .................................................... 557
                                                                                                                                                        .
DTC P1444 EVAP CANISTER PURGE VOLUME                                              Diagnostic Procedure ........................................... 558  .
CONTROL SOLENOID VALVE .............................. 518                .        Component Inspection ......................................... 563    .
 Description ........................................................... 518
                                                                         .       DTC P1574 ICC VEHICLE SPEED SENSOR ........ 564                        .
 CONSULT-II Reference Value in Data Monitor Mode                                  Component Description ....................................... 564     .
                                                                         . 518    On Board Diagnosis Logic ................................... 564      .
 On Board Diagnosis Logic ................................... 519        .        DTC Confirmation Procedure ............................... 564        .
 DTC Confirmation Procedure .............................. 519           .        Diagnostic Procedure ........................................... 565  .
 Wiring Diagram .................................................... 520 .       DTC P1574 ASCD VEHICLE SPEED SENSOR .... 566                           .
 Diagnostic Procedure .......................................... 522     .        Component Description ....................................... 566     .
 Component Inspection ......................................... 525      .        On Board Diagnosis Logic ................................... 566      .
 Removal and Installation ..................................... 525      .        DTC Confirmation Procedure ............................... 566        .
DTC P1446 EVAP CANISTER VENT CONTROL                                              Diagnostic Procedure ........................................... 567  .
VALVE .................................................................... 526
                                                                         .       DTC P1706 PNP SWITCH ...................................... 568        .
 Component Description ....................................... 526       .        Component Description ....................................... 568     .
 CONSULT-II Reference Value in Data Monitor Mode                                  CONSULT-II Reference Value in Data Monitor Mode
                                                                         . 526                                                                          .568
 On Board Diagnosis Logic ................................... 526        .        On Board Diagnosis Logic ................................... 568      .
 DTC Confirmation Procedure .............................. 527           .        DTC Confirmation Procedure ............................... 568        .
 Wiring Diagram .................................................... 528 .        Overall Function Check ........................................ 569   .
 Diagnostic Procedure .......................................... 529     .        Wiring Diagram .................................................... 570
                                                                                                                                                        .
 Component Inspection ......................................... 530      .        Diagnostic Procedure ........................................... 571  .
DTC P1564 ICC STEERING SWITCH ................... 532                    .       DTC P1805 BRAKE SWITCH ................................ 573            .
 Component Description ....................................... 532       .        Description ........................................................... 573
                                                                                                                                                        .
 CONSULT-II Reference Value in Data Monitor Mode                                  CONSULT-II Reference Value in Data Monitor Mode
                                                                         . 532                                                                          .573
 On Board Diagnosis Logic ................................... 532        .        On Board Diagnosis Logic ................................... 573      .
 DTC Confirmation Procedure .............................. 532           .        DTC Confirmation Procedure ............................... 573        .
 Wiring Diagram .................................................... 534 .        Wiring Diagram .................................................... 574
                                                                                                                                                        .
 Diagnostic Procedure .......................................... 536     .        Diagnostic Procedure ........................................... 575  .
 Component Inspection ......................................... 538      .        Component Inspection ......................................... 577    .
DTC P1564 ASCD STEERING SWITCH ............... 539                       .       DTC P2122, P2123 APP SENSOR ........................ 578               .
 Component Description ....................................... 539       .        Component Description ....................................... 578     .
 CONSULT-II Reference Value in Data Monitor Mode                                  CONSULT-II Reference Value in Data Monitor Mode
                                                                         . 539                                                                          .578
 On Board Diagnosis Logic ................................... 539        .        On Board Diagnosis Logic ................................... 578      .
 DTC Confirmation Procedure .............................. 540           .        DTC Confirmation Procedure ............................... 579        .
 Wiring Diagram .................................................... 541 .        Wiring Diagram .................................................... 580
                                                                                                                                                        .
 Diagnostic Procedure .......................................... 542     .        Diagnostic Procedure ........................................... 581  .
 Component Inspection ......................................... 544      .        Component Inspection ......................................... 583    .
DTC P1568 ICC FUNCTION .................................. 545            .        Removal and Installation ...................................... 584   .
 On Board Diagnosis Logic ................................... 545        .       DTC P2127, P2128 APP SENSOR ........................ 585               .
 DTC Confirmation Procedure .............................. 545           .        Component Description ....................................... 585     .
 Diagnostic Procedure .......................................... 545     .        CONSULT-II Reference Value in Data Monitor Mode
DTC P1572 ICC BRAKE SWITCH ......................... 546                 .                                                                              .585
 Component Description ....................................... 546       .        On Board Diagnosis Logic ................................... 585      .
 CONSULT-II Reference Value in Data Monitor Mode                                  DTC Confirmation Procedure ............................... 586        .
                                                                         . 546    Wiring Diagram .................................................... 587
                                                                                                                                                        .
 On Board Diagnosis Logic ................................... 546        .        Diagnostic Procedure ........................................... 588  .

Revision: 2004 November                                                     EC-6                                                   2004.5 FX35/FX45
  Component Inspection ........................................ 591    .                                                                                  . 638
  Removal and Installation ..................................... 591   .         Wiring Diagram .................................................... 639  .       A
DTC P2135 TP SENSOR ....................................... 592        .         Diagnostic Procedure .......................................... 640      .
  Component Description ....................................... 592    .         Component Inspection ......................................... 645       .
  CONSULT-II Reference Value in Data Monitor Mode                              ASCD BRAKE SWITCH ........................................ 646             .       EC
                                                                       . 592     Component Description ....................................... 646        .
  On Board Diagnosis Logic .................................. 592      .         CONSULT-II Reference Value in Data Monitor Mode
  DTC Confirmation Procedure .............................. 593        .                                                                                  . 646
  Wiring Diagram ................................................... 594
                                                                       .         Wiring Diagram .................................................... 647  .       C
  Diagnostic Procedure .......................................... 595  .         Diagnostic Procedure .......................................... 648      .
  Component Inspection ........................................ 598    .         Component Inspection ......................................... 653       .
  Removal and Installation ..................................... 598   .       ASCD INDICATOR ................................................. 654       .       D
DTC P2138 APP SENSOR .................................... 599          .         Component Description ....................................... 654        .
  Component Description ....................................... 599    .         CONSULT-II Reference Value in Data Monitor Mode
  CONSULT-II Reference Value in Data Monitor Mode                                                                                                         . 654   E
                                                                       . 599     Wiring Diagram .................................................... 655  .
  On Board Diagnosis Logic .................................. 599      .         Diagnostic Procedure .......................................... 656      .
  DTC Confirmation Procedure .............................. 600        .       SNOW MODE SWITCH ......................................... 657             .
  Wiring Diagram ................................................... 601
                                                                       .         Description ........................................................... 657
                                                                                                                                                          .       F
  Diagnostic Procedure .......................................... 602  .         CONSULT-II Reference Value in the Data Monitor
  Component Inspection ........................................ 607    .         Mode .................................................................... 657
                                                     



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