Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti FX45 FX35 2003-2005 Approved FX45_35-S50-2004.0 ec

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ENGINE CONTROL SYSTEM


B ENGINE

                                                                                                                                                                       A




                                                                           ENGINE CONTROL SYSTEM
                                                                                                       SECTION                    EC                                   EC



                                                                                                                                                                       C


                                                                                                                                                                       D


                                                                                                                                                                       E
                                                                    CONTENTS
                                 VQ35DE                                              TROUBLE DIAGNOSIS ........................................... 77          .       F
                                                                                      Trouble Diagnosis Introduction .............................. 77         .
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 ...................... 122              .
  Wiring Diagrams and Trouble Diagnosis ............... 26                  .         CONSULT-II Reference Value in Data Monitor .... 125                      .
PREPARATION ........................................................ 27     .         Major Sensor Reference Graph in Data Monitor                                     J
  Special Service Tools ............................................ 27     .         Mode .................................................................... 129
                                                                                                                                                               .
  Commercial Service Tools ..................................... 28         .        TROUBLE DIAGNOSIS - SPECIFICATION VALUE 131                               .
ENGINE CONTROL SYSTEM ................................. 29                  .         Description ........................................................... 131
                                                                                                                                                               .
  System Diagram .................................................... 29    .                                                                                          K
                                                                                      Testing Condition ................................................. 131  .
  Vacuum Hose Drawing .......................................... 30         .         Inspection Procedure ........................................... 131     .
  System Chart ........................................................ 31  .         Diagnostic Procedure .......................................... 132      .
  Multiport Fuel Injection (MFI) System ................... 32              .        TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-                                          L
  Electronic Ignition (EI) System .............................. 34         .        DENT ...................................................................... 135
                                                                                                                                                               .
  Air Conditioning Cut Control .................................. 35        .         Description ........................................................... 135
                                                                                                                                                               .
  Fuel Cut Control (at No Load and High Engine                                        Diagnostic Procedure .......................................... 135      .       M
  Speed) ................................................................... 35
                                                                            .        POWER SUPPLY AND GROUND CIRCUIT .......... 136                            .
  CAN communication ............................................. 36        .         Wiring Diagram .................................................... 136  .
BASIC SERVICE PROCEDURE ............................. 37                    .         Diagnostic Procedure .......................................... 137      .
  Idle Speed and Ignition Timing Check ................... 37               .         Ground Inspection ............................................... 141    .
  Idle Speed/Ignition Timing/Idle Mixture Ratio                                      DTC U1000, U1001 CAN COMMUNICATION LINE. 142
  Adjustment ............................................................ 38.         Description ........................................................... 142
                                                                                                                                                               .
  Accelerator Pedal Released Position Learning ..... 49                     .         On Board Diagnosis Logic ................................... 142         .
  Throttle Valve Closed Position Learning ............... 49                .         DTC Confirmation Procedure .............................. 142            .
  Idle Air Volume Learning ....................................... 49       .         Wiring Diagram .................................................... 143  .
  Fuel Pressure Check ............................................. 51      .         Diagnostic Procedure .......................................... 144      .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 53                             .        DTC P0011, P0021 IVT CONTROL ....................... 145                  .
  Introduction ........................................................... 53
                                                                            .         Description ........................................................... 145
                                                                                                                                                               .
  Two Trip Detection Logic ....................................... 53       .         CONSULT-II Reference Value in Data Monitor Mode
  Emission-Related Diagnostic Information ............. 54                  .                                                                                  . 145
  IVIS (Infiniti Vehicle Immobilizer System -- NATS) 68                     ...       On Board Diagnosis Logic ................................... 146         .
  Malfunction Indicator Lamp (MIL) .......................... 68            .
  OBD System Operation Chart ............................... 72             .

Revision: 2004 November                                                        EC-1                                                         2004 FX35/FX45
 DTC Confirmation Procedure .............................. 146         .       DTC P0122, P0123 TP SENSOR ........................... 190         .
 Diagnostic Procedure .......................................... 148   .        Component Description ....................................... 190 .
DTC P0031, P0032, P0051, P0052 HO2S1 HEATER 149                        .        CONSULT-II Reference Value in Data Monitor Mode
 Description ........................................................... 149
                                                                       .                                                                          .190
 CONSULT-II Reference Value in Data Monitor Mode                                On Board Diagnosis Logic ................................... 190  .
                                                                       . 149    DTC Confirmation Procedure ............................... 191    .
 On Board Diagnosis Logic ................................... 149      .        Wiring Diagram .................................................... 192
                                                                                                                                                  .
 DTC Confirmation Procedure .............................. 150         .        Diagnostic Procedure ........................................... 193
                                                                                                                                                  .
 Wiring Diagram .................................................... 151
                                                                       .        Component Inspection ......................................... 196.
 Diagnostic Procedure .......................................... 154   .        Removal and Installation ...................................... 196
                                                                                                                                                  .
 Component Inspection ......................................... 156    .       DTC P0125 ECT SENSOR ..................................... 197     .
 Removal and Installation ..................................... 156    .        Component Description ....................................... 197 .
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER 157                        .        On Board Diagnosis Logic ................................... 197  .
 Description ........................................................... 157
                                                                       .        DTC Confirmation Procedure ............................... 198    .
 CONSULT-II Reference Value in Data Monitor Mode                                Diagnostic Procedure ........................................... 198
                                                                                                                                                  .
                                                                       . 157    Component Inspection ......................................... 199.
 On Board Diagnosis Logic ................................... 157      .        Removal and Installation ...................................... 199
                                                                                                                                                  .
 DTC Confirmation Procedure .............................. 158         .       DTC P0127 IAT SENSOR ....................................... 200   .
 Wiring Diagram .................................................... 159
                                                                       .        Component Description ....................................... 200 .
 Diagnostic Procedure .......................................... 162   .        On Board Diagnosis Logic ................................... 200  .
 Component Inspection ......................................... 164    .        DTC Confirmation Procedure ............................... 200    .
 Removal and Installation ..................................... 164    .        Diagnostic Procedure ........................................... 201
                                                                                                                                                  .
DTC P0101 MAF SENSOR .................................... 165          .        Component Inspection ......................................... 202.
 Component Description ....................................... 165     .        Removal and Installation ...................................... 202
                                                                                                                                                  .
 CONSULT-II Reference Value in Data Monitor Mode                               DTC P0128 THERMOSTAT FUNCTION ................ 203                 .
                                                                       . 165    On Board Diagnosis Logic ................................... 203  .
 On Board Diagnosis Logic ................................... 165      .        DTC Confirmation Procedure ............................... 203    .
 DTC Confirmation Procedure .............................. 166         .        Diagnostic Procedure ........................................... 203
                                                                                                                                                  .
 Overall Function Check ....................................... 167    .        Component Inspection ......................................... 204.
 Wiring Diagram .................................................... 168
                                                                       .        Removal and Installation ...................................... 204
                                                                                                                                                  .
 Diagnostic Procedure .......................................... 169   .       DTC P0132, P0152 HO2S1 .................................... 205    .
 Component Inspection ......................................... 172    .        Component Description ....................................... 205 .
 Removal and Installation ..................................... 172    .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0102, P0103 MAF SENSOR ........................ 173               .                                                                          .205
 Component Description ....................................... 173     .        On Board Diagnosis Logic ................................... 205  .
 CONSULT-II Reference Value in Data Monitor Mode                                DTC Confirmation Procedure ............................... 206    .
                                                                       . 173    Wiring Diagram .................................................... 207
                                                                                                                                                  .
 On Board Diagnosis Logic ................................... 173      .        Diagnostic Procedure ........................................... 210
                                                                                                                                                  .
 DTC Confirmation Procedure .............................. 174         .        Component Inspection ......................................... 212.
 Wiring Diagram .................................................... 175
                                                                       .        Removal and Installation ...................................... 213
                                                                                                                                                  .
 Diagnostic Procedure .......................................... 176   .       DTC P0133, P0153 HO2S1 .................................... 214    .
 Component Inspection ......................................... 179    .        Component Description ....................................... 214 .
 Removal and Installation ..................................... 179    .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0112, P0113 IAT SENSOR .......................... 180             .                                                                          .214
 Component Description ....................................... 180     .        On Board Diagnosis Logic ................................... 214  .
 On Board Diagnosis Logic ................................... 180      .        DTC Confirmation Procedure ............................... 215    .
 DTC Confirmation Procedure .............................. 180         .        Overall Function Check ........................................ 216
                                                                                                                                                  .
 Wiring Diagram .................................................... 182
                                                                       .        Wiring Diagram .................................................... 217
                                                                                                                                                  .
 Diagnostic Procedure .......................................... 183   .        Diagnostic Procedure ........................................... 220
                                                                                                                                                  .
 Component Inspection ......................................... 184    .        Component Inspection ......................................... 224.
 Removal and Installation ..................................... 184    .        Removal and Installation ...................................... 225
                                                                                                                                                  .
DTC P0117, P0118 ECT SENSOR ......................... 185              .       DTC P0134, P0154 HO2S1 .................................... 226    .
 Component Description ....................................... 185     .        Component Description ....................................... 226 .
 On Board Diagnosis Logic ................................... 185      .        CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 186         .                                                                          .226
 Wiring Diagram .................................................... 187
                                                                       .        On Board Diagnosis Logic ................................... 226  .
 Diagnostic Procedure .......................................... 188   .        DTC Confirmation Procedure ............................... 227    .
 Component Inspection ......................................... 189    .        Overall Function Check ........................................ 228
                                                                                                                                                  .
 Removal and Installation ..................................... 189    .        Wiring Diagram .................................................... 229
                                                                                                                                                  .

Revision: 2004 November                                                   EC-2                                                   2004 FX35/FX45
 Diagnostic Procedure .......................................... 232 .         Diagnostic Procedure .......................................... 287      .
 Component Inspection ........................................ 234   .         Component Inspection ......................................... 290       .       A
 Removal and Installation ..................................... 235  .         Removal and Installation ..................................... 290       .
DTC P0138, P0158 HO2S2 ................................... 236       .       DTC P0300 - P0306 MULTIPLE CYLINDER MIS-
 Component Description ....................................... 236   .       FIRE, NO. 1 - 6 CYLINDER MISFIRE .................... 291                  .       EC
 CONSULT-II Reference Value in Data Monitor Mode                               On Board Diagnosis Logic ................................... 291         .
                                                                     . 236     DTC Confirmation Procedure .............................. 291            .
 On Board Diagnosis Logic .................................. 236     .         Diagnostic Procedure .......................................... 292      .
 DTC Confirmation Procedure .............................. 237       .       DTC P0327, P0328 KS .......................................... 297         .       C
 Wiring Diagram ................................................... 238
                                                                     .         Component Description ....................................... 297        .
 Diagnostic Procedure .......................................... 241 .         On Board Diagnosis Logic ................................... 297         .
 Component Inspection ........................................ 243   .         DTC Confirmation Procedure .............................. 297            .       D
 Removal and Installation ..................................... 244  .         Wiring Diagram .................................................... 298  .
DTC P0139, P0159 HO2S2 ................................... 245       .         Diagnostic Procedure .......................................... 299      .
 Component Description ....................................... 245   .         Component Inspection ......................................... 300       .       E
 CONSULT-II Reference Value in Data Monitor Mode                               Removal and Installation ..................................... 301       .
                                                                     . 245   DTC P0335 CKP SENSOR (POS) ......................... 302                   .
 On Board Diagnosis Logic .................................. 245     .         Component Description ....................................... 302        .
 DTC Confirmation Procedure .............................. 246       .         CONSULT-II Reference Value in Data Monitor Mode                                  F
 Overall Function Check ....................................... 246  .                                                                                  . 302
 Wiring Diagram ................................................... 248
                                                                     .         On Board Diagnosis Logic ................................... 302         .
 Diagnostic Procedure .......................................... 251 .         DTC Confirmation Procedure .............................. 302            .       G
 Component Inspection ........................................ 253   .         Wiring Diagram .................................................... 303  .
 Removal and Installation ..................................... 255  .         Diagnostic Procedure .......................................... 304      .
DTC P0171, P0174 FUEL INJECTION SYSTEM                                         Component Inspection ......................................... 307       .       H
FUNCTION ............................................................. 256
                                                                     .         Removal and Installation ..................................... 307       .
 On Board Diagnosis Logic .................................. 256     .       DTC P0340, P0345 CMP SENSOR (PHASE) ....... 308                            .
 DTC Confirmation Procedure .............................. 256       .         Component Description ....................................... 308        .
                                                                                                                                                                 I
 Wiring Diagram ................................................... 258
                                                                     .         CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 260 .                                                                                  . 308
DTC P0172, P0175 FUEL INJECTION SYSTEM                                         On Board Diagnosis Logic ................................... 308         .
FUNCTION ............................................................. 265
                                                                     .         DTC Confirmation Procedure .............................. 308            .       J
 On Board Diagnosis Logic .................................. 265     .         Wiring Diagram .................................................... 309  .
 DTC Confirmation Procedure .............................. 265       .         Diagnostic Procedure .......................................... 312      .
 Wiring Diagram ................................................... 267
                                                                     .         Component Inspection ......................................... 315       .       K
 Diagnostic Procedure .......................................... 269 .         Removal and Installation ..................................... 315       .
DTC P0181 FTT SENSOR ..................................... 273       .       DTC P0420, P0430 THREE WAY CATALYST FUNC-
 Component Description ....................................... 273   .       TION ....................................................................... 316
                                                                                                                                                        .       L
 On Board Diagnosis Logic .................................. 273     .         On Board Diagnosis Logic ................................... 316         .
 DTC Confirmation Procedure .............................. 273       .         DTC Confirmation Procedure .............................. 316            .
 Wiring Diagram ................................................... 275
                                                                     .         Overall Function Check ....................................... 317       .
 Diagnostic Procedure .......................................... 276 .         Diagnostic Procedure .......................................... 318      .       M
 Component Inspection ........................................ 277   .       DTC P0441 EVAP CONTROL SYSTEM ................ 321                         .
 Removal and Installation ..................................... 278  .         System Description .............................................. 321    .
DTC P0182, P0183 FTT SENSOR ........................ 279             .         On Board Diagnosis Logic ................................... 321         .
 Component Description ....................................... 279   .         DTC Confirmation Procedure .............................. 321            .
 On Board Diagnosis Logic .................................. 279     .         Overall Function Check ....................................... 322       .
 DTC Confirmation Procedure .............................. 279       .         Diagnostic Procedure .......................................... 323      .
 Wiring Diagram ................................................... 280
                                                                     .       DTC P0442 EVAP CONTROL SYSTEM ................ 326                         .
 Diagnostic Procedure .......................................... 281 .         On Board Diagnosis Logic ................................... 326         .
 Component Inspection ........................................ 282   .         DTC Confirmation Procedure .............................. 327            .
 Removal and Installation ..................................... 283  .         Diagnostic Procedure .......................................... 328      .
DTC P0222, P0223 TP SENSOR .......................... 284            .       DTC P0444, P0445 EVAP CANISTER PURGE VOL-
 Component Description ....................................... 284   .       UME CONTROL SOLENOID VALVE ..................... 335                       .
 CONSULT-II Reference Value in Data Monitor Mode                               Description ........................................................... 335
                                                                                                                                                        .
                                                                     . 284     CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic .................................. 284     .                                                                                  . 335
 DTC Confirmation Procedure .............................. 285       .         On Board Diagnosis Logic ................................... 336         .
 Wiring Diagram ................................................... 286
                                                                     .         DTC Confirmation Procedure .............................. 336            .

Revision: 2004 November                                                 EC-3                                                        2004 FX35/FX45
 Wiring Diagram .................................................... 337 .       DTC P0461 FUEL LEVEL SENSOR ...................... 386                    .
 Diagnostic Procedure .......................................... 339     .        Component Description ....................................... 386        .
 Component Inspection ......................................... 340      .        On Board Diagnosis Logic ................................... 386         .
 Removal and Installation ..................................... 341      .        Overall Function Check ........................................ 386      .
DTC P0447 EVAP CANISTER VENT CONTROL                                              Diagnostic Procedure ........................................... 387     .
VALVE .................................................................... 342
                                                                         .        Removal and Installation ...................................... 387      .
 Component Description ....................................... 342       .       DTC P0462, P0463 FUEL LEVEL SENSOR .......... 388                         .
 CONSULT-II Reference Value in Data Monitor Mode                                  Component Description ....................................... 388        .
                                                                         . 342    On Board Diagnosis Logic ................................... 388         .
 On Board Diagnosis Logic ................................... 342        .        DTC Confirmation Procedure ............................... 388           .
 DTC Confirmation Procedure .............................. 343           .        Diagnostic Procedure ........................................... 389     .
 Wiring Diagram .................................................... 344 .        Removal and Installation ...................................... 389      .
 Diagnostic Procedure .......................................... 345     .       DTC P0500 VSS ..................................................... 390   .
 Component Inspection ......................................... 347      .        Description ........................................................... 390
                                                                                                                                                           .
DTC P0451 EVAP CONTROL SYSTEM PRESSURE                                            On Board Diagnosis Logic ................................... 390         .
SENSOR ................................................................. 349
                                                                         .        DTC Confirmation Procedure ............................... 390           .
 Component Description ....................................... 349       .        Overall Function Check ........................................ 390      .
 CONSULT-II Reference Value in Data Monitor Mode                                  Diagnostic Procedure ........................................... 391     .
                                                                         . 349   DTC P0506 ISC SYSTEM ...................................... 392           .
 On Board Diagnosis Logic ................................... 349        .        Description ........................................................... 392
                                                                                                                                                           .
 DTC Confirmation Procedure .............................. 350           .        On Board Diagnosis Logic ................................... 392         .
 Diagnostic Procedure .......................................... 350     .        DTC Confirmation Procedure ............................... 392           .
 Component Inspection ......................................... 351      .        Diagnostic Procedure ........................................... 393     .
DTC P0452 EVAP CONTROL SYSTEM PRESSURE                                           DTC P0507 ISC SYSTEM ...................................... 394           .
SENSOR ................................................................. 352
                                                                         .        Description ........................................................... 394
                                                                                                                                                           .
 Component Description ....................................... 352       .        On Board Diagnosis Logic ................................... 394         .
 CONSULT-II Reference Value in Data Monitor Mode                                  DTC Confirmation Procedure ............................... 394           .
                                                                         . 352    Diagnostic Procedure ........................................... 395     .
 On Board Diagnosis Logic ................................... 352        .       DTC P0550 PSP SENSOR ..................................... 396            .
 DTC Confirmation Procedure .............................. 353           .        Component Description ....................................... 396        .
 Wiring Diagram .................................................... 354 .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 355     .                                                                                 .396
 Component Inspection ......................................... 357      .        On Board Diagnosis Logic ................................... 396         .
DTC P0453 EVAP CONTROL SYSTEM PRESSURE                                            DTC Confirmation Procedure ............................... 396           .
SENSOR ................................................................. 358
                                                                         .        Wiring Diagram .................................................... 397  .
 Component Description ....................................... 358       .        Diagnostic Procedure ........................................... 398     .
 CONSULT-II Reference Value in Data Monitor Mode                                  Component Inspection ......................................... 400       .
                                                                         . 358    Removal and Installation ...................................... 400      .
 On Board Diagnosis Logic ................................... 358        .       DTC P0605 ECM .................................................... 401    .
 DTC Confirmation Procedure .............................. 359           .        Component Description ....................................... 401        .
 Wiring Diagram .................................................... 360 .        On Board Diagnosis Logic ................................... 401         .
 Diagnostic Procedure .......................................... 361     .        DTC Confirmation Procedure ............................... 401           .
 Component Inspection ......................................... 365      .        Diagnostic Procedure ........................................... 402     .
DTC P0455 EVAP CONTROL SYSTEM ................ 366                       .       DTC P1065 ECM POWER SUPPLY ....................... 404                    .
 On Board Diagnosis Logic ................................... 366        .        Component Description ....................................... 404        .
 DTC Confirmation Procedure .............................. 367           .        On Board Diagnosis Logic ................................... 404         .
 Diagnostic Procedure .......................................... 368     .        DTC Confirmation Procedure ............................... 404           .
DTC P0456 EVAP CONTROL SYSTEM ................ 374                       .        Wiring Diagram .................................................... 405  .
 On Board Diagnosis Logic ................................... 374        .        Diagnostic Procedure ........................................... 406     .
 DTC Confirmation Procedure .............................. 375           .       DTC P1111, P1136 IVT CONTROL SOLENOID
 Overall Function Check ....................................... 376      .       VALVE ..................................................................... 408
                                                                                                                                                           .
 Diagnostic Procedure .......................................... 377     .        Component Description ....................................... 408        .
DTC P0460 FUEL LEVEL SENSOR ...................... 384                   .        CONSULT-II Reference Value in Data Monitor Mode
 Component Description ....................................... 384       .                                                                                 .408
 On Board Diagnosis Logic ................................... 384        .        On Board Diagnosis Logic ................................... 408         .
 DTC Confirmation Procedure .............................. 384           .        DTC Confirmation Procedure ............................... 408           .
 Diagnostic Procedure .......................................... 385     .        Wiring Diagram .................................................... 409  .
 Removal and Installation ..................................... 385      .        Diagnostic Procedure ........................................... 412     .


Revision: 2004 November                                                     EC-4                                                        2004 FX35/FX45
 Component Inspection ........................................ 414      .        DTC Confirmation Procedure .............................. 447         .
 Removal and Installation ..................................... 414     .        Overall Function Check ....................................... 447    .       A
DTC P1121 ELECTRIC THROTTLE CONTROL                                              Wiring Diagram .................................................... 449
                                                                                                                                                       .
ACTUATOR ........................................................... 415.        Diagnostic Procedure .......................................... 452   .
 Component Description ....................................... 415      .        Component Inspection ......................................... 454    .       EC
 On Board Diagnosis Logic .................................. 415        .        Removal and Installation ..................................... 456    .
 DTC Confirmation Procedure .............................. 415          .       DTC P1147, P1167 HO2S2 .................................... 457        .
 Diagnostic Procedure .......................................... 416    .        Component Description ....................................... 457     .
DTC P1122 ELECTRIC THROTTLE CONTROL                                              CONSULT-II Reference Value in Data Monitor Mode                               C
FUNCTION ............................................................. 417
                                                                        .                                                                              . 457
 Description .......................................................... 417
                                                                        .        On Board Diagnosis Logic ................................... 457      .
 On Board Diagnosis Logic .................................. 417        .        DTC Confirmation Procedure .............................. 458         .       D
 DTC Confirmation Procedure .............................. 417          .        Overall Function Check ....................................... 458    .
 Wiring Diagram ................................................... 418 .        Wiring Diagram .................................................... 460
                                                                                                                                                       .
 Diagnostic Procedure .......................................... 419    .        Diagnostic Procedure .......................................... 463   .       E
 Component Inspection ........................................ 422      .        Component Inspection ......................................... 465    .
 Removal and Installation ..................................... 422     .        Removal and Installation ..................................... 467    .
DTC P1124, P1126 THROTTLE CONTROL MOTOR                                         DTC P1148, P1168 CLOSED LOOP CONTROL ... 468                           .
RELAY ................................................................... 423
                                                                        .        On Board Diagnosis Logic ................................... 468      .       F
 Component Description ....................................... 423      .        DTC Confirmation Procedure .............................. 468         .
 CONSULT-II Reference Value in Data Monitor Mode                                 Overall Function Check ....................................... 468    .
                                                                        . 423    Diagnostic Procedure .......................................... 469   .       G
 On Board Diagnosis Logic .................................. 423        .       DTC P1211 TCS CONTROL UNIT ......................... 470               .
 DTC Confirmation Procedure .............................. 423          .        Description ........................................................... 470
                                                                                                                                                       .
 Wiring Diagram ................................................... 425 .        On Board Diagnosis Logic ................................... 470      .       H
 Diagnostic Procedure .......................................... 426    .        DTC Confirmation Procedure .............................. 470         .
DTC P1128 THROTTLE CONTROL MOTOR ....... 428                            .        Diagnostic Procedure .......................................... 470   .
 Component Description ....................................... 428      .       DTC P1212 TCS COMMUNICATION LINE ........... 471                       .
                                                                                                                                                                I
 On Board Diagnosis Logic .................................. 428        .        Description ........................................................... 471
                                                                                                                                                       .
 DTC Confirmation Procedure .............................. 428          .        On Board Diagnosis Logic ................................... 471      .
 Wiring Diagram ................................................... 429 .        DTC Confirmation Procedure .............................. 471         .
 Diagnostic Procedure .......................................... 430    .        Diagnostic Procedure .......................................... 471   .       J
 Component Inspection ........................................ 431      .       DTC P1217 ENGINE OVER TEMPERATURE ....... 472                          .
 Removal and Installation ..................................... 432     .        Description ........................................................... 472
                                                                                                                                                       .
DTC P1143, P1163 HO2S1 .................................... 433         .        CONSULT-II Reference Value in Data Monitor Mode                               K
 Component Description ....................................... 433      .                                                                              . 475
 CONSULT-II Reference Value in Data Monitor Mode                                 On Board Diagnosis Logic ................................... 475      .
                                                                        . 433    Overall Function Check ....................................... 475    .       L
 On Board Diagnosis Logic .................................. 433        .        Wiring Diagram .................................................... 477
                                                                                                                                                       .
 DTC Confirmation Procedure .............................. 434          .        Diagnostic Procedure .......................................... 479   .
 Overall Function Check ....................................... 435     .        Main 12 Causes of Overheating .......................... 484          .
 Diagnostic Procedure .......................................... 435    .        Component Inspection ......................................... 484    .       M
 Component Inspection ........................................ 437      .       DTC P1225 TP SENSOR ....................................... 485        .
 Removal and Installation ..................................... 438     .        Component Description ....................................... 485     .
DTC P1144, P1164 HO2S1 .................................... 439         .        On Board Diagnosis Logic ................................... 485      .
 Component Description ....................................... 439      .        DTC Confirmation Procedure .............................. 485         .
 CONSULT-II Reference Value in Data Monitor Mode                                 Diagnostic Procedure .......................................... 486   .
                                                                        . 439    Removal and Installation ..................................... 486    .
 On Board Diagnosis Logic .................................. 439        .       DTC P1226 TP SENSOR ....................................... 487        .
 DTC Confirmation Procedure .............................. 440          .        Component Description ....................................... 487     .
 Overall Function Check ....................................... 441     .        On Board Diagnosis Logic ................................... 487      .
 Diagnostic Procedure .......................................... 441    .        DTC Confirmation Procedure .............................. 487         .
 Component Inspection ........................................ 443      .        Diagnostic Procedure .......................................... 488   .
 Removal and Installation ..................................... 445     .        Removal and Installation ..................................... 488    .
DTC P1146, P1166 HO2S2 .................................... 446         .       DTC P1229 SENSOR POWER SUPPLY ............... 489                      .
 Component Description ....................................... 446      .        On Board Diagnosis Logic ................................... 489      .
 CONSULT-II Reference Value in Data Monitor Mode                                 DTC Confirmation Procedure .............................. 489         .
                                                                        . 446    Wiring Diagram .................................................... 490
                                                                                                                                                       .
 On Board Diagnosis Logic .................................. 446        .        Diagnostic Procedure .......................................... 491   .

Revision: 2004 November                                                   EC-5                                                      2004 FX35/FX45
DTC P1444 EVAP CANISTER PURGE VOLUME                                              Diagnostic Procedure ........................................... 535  .
CONTROL SOLENOID VALVE .............................. 494                .        Component Inspection ......................................... 540    .
 Description ........................................................... 494
                                                                         .       DTC P1574 ICC VEHICLE SPEED SENSOR ........ 541                        .
 CONSULT-II Reference Value in Data Monitor Mode                                  Component Description ....................................... 541     .
                                                                         . 494    On Board Diagnosis Logic ................................... 541      .
 On Board Diagnosis Logic ................................... 495        .        DTC Confirmation Procedure ............................... 541        .
 DTC Confirmation Procedure .............................. 495           .        Diagnostic Procedure ........................................... 542  .
 Wiring Diagram .................................................... 496 .       DTC P1574 ASCD VEHICLE SPEED SENSOR .... 543                           .
 Diagnostic Procedure .......................................... 498     .        Component Description ....................................... 543     .
 Component Inspection ......................................... 501      .        On Board Diagnosis Logic ................................... 543      .
 Removal and Installation ..................................... 501      .        DTC Confirmation Procedure ............................... 543        .
DTC P1446 EVAP CANISTER VENT CONTROL                                              Diagnostic Procedure ........................................... 544  .
VALVE .................................................................... 502
                                                                         .       DTC P1706 PNP SWITCH ...................................... 545        .
 Component Description ....................................... 502       .        Component Description ....................................... 545     .
 CONSULT-II Reference Value in Data Monitor Mode                                  CONSULT-II Reference Value in Data Monitor Mode
                                                                         . 502                                                                          .545
 On Board Diagnosis Logic ................................... 502        .        On Board Diagnosis Logic ................................... 545      .
 DTC Confirmation Procedure .............................. 503           .        DTC Confirmation Procedure ............................... 545        .
 Wiring Diagram .................................................... 504 .        Overall Function Check ........................................ 546   .
 Diagnostic Procedure .......................................... 505     .        Wiring Diagram .................................................... 547
                                                                                                                                                        .
 Component Inspection ......................................... 506      .        Diagnostic Procedure ........................................... 548  .
DTC P1564 ICC STEERING SWITCH ................... 508                    .       DTC P1805 BRAKE SWITCH ................................ 550            .
 Component Description ....................................... 508       .        Description ........................................................... 550
                                                                                                                                                        .
 CONSULT-II Reference Value in Data Monitor Mode                                  CONSULT-II Reference Value in Data Monitor Mode
                                                                         . 508                                                                          .550
 On Board Diagnosis Logic ................................... 508        .        On Board Diagnosis Logic ................................... 550      .
 DTC Confirmation Procedure .............................. 508           .        DTC Confirmation Procedure ............................... 550        .
 Wiring Diagram .................................................... 510 .        Wiring Diagram .................................................... 551
                                                                                                                                                        .
 Diagnostic Procedure .......................................... 511     .        Diagnostic Procedure ........................................... 552  .
 Component Inspection ......................................... 514      .        Component Inspection ......................................... 554    .
DTC P1564 ASCD STEERING SWITCH ............... 515                       .       DTC P2122, P2123 APP SENSOR ........................ 555               .
 Component Description ....................................... 515       .        Component Description ....................................... 555     .
 CONSULT-II Reference Value in Data Monitor Mode                                  CONSULT-II Reference Value in Data Monitor Mode
                                                                         . 515                                                                          .555
 On Board Diagnosis Logic ................................... 515        .        On Board Diagnosis Logic ................................... 555      .
 DTC Confirmation Procedure .............................. 516           .        DTC Confirmation Procedure ............................... 556        .
 Wiring Diagram .................................................... 517 .        Wiring Diagram .................................................... 557
                                                                                                                                                        .
 Diagnostic Procedure .......................................... 518     .        Diagnostic Procedure ........................................... 558  .
 Component Inspection ......................................... 520      .        Component Inspection ......................................... 560    .
DTC P1568 ICC FUNCTION .................................. 521            .        Removal and Installation ...................................... 561   .
 On Board Diagnosis Logic ................................... 521        .       DTC P2127, P2128 APP SENSOR ........................ 562               .
 DTC Confirmation Procedure .............................. 521           .        Component Description ....................................... 562     .
 Diagnostic Procedure .......................................... 521     .        CONSULT-II Reference Value in Data Monitor Mode
DTC P1572 ICC BRAKE SWITCH ......................... 522                 .                                                                              .562
 Component Description ....................................... 522       .        On Board Diagnosis Logic ................................... 562      .
 CONSULT-II Reference Value in Data Monitor Mode                                  DTC Confirmation Procedure ............................... 563        .
                                                                         . 522    Wiring Diagram .................................................... 564
                                                                                                                                                        .
 On Board Diagnosis Logic ................................... 522        .        Diagnostic Procedure ........................................... 565  .
 DTC Confirmation Procedure .............................. 523           .        Component Inspection ......................................... 568    .
 Wiring Diagram .................................................... 524 .        Removal and Installation ...................................... 568   .
 Diagnostic Procedure .......................................... 525     .       DTC P2135 TP SENSOR ....................................... 569        .
 Component Inspection ......................................... 530      .        Component Description ....................................... 569     .
DTC P1572 ASCD BRAKE SWITCH ..................... 532                    .        CONSULT-II Reference Value in Data Monitor Mode
 Component Description ....................................... 532       .                                                                              .569
 CONSULT-II Reference Value in Data Monitor Mode                                  On Board Diagnosis Logic ................................... 569      .
                                                                         . 532    DTC Confirmation Procedure ............................... 570        .
 On Board Diagnosis Logic ................................... 532        .        Wiring Diagram .................................................... 571
                                                                                                                                                        .
 DTC Confirmation Procedure .............................. 533           .        Diagnostic Procedure ........................................... 572  .
 Wiring Diagram .................................................... 534 .

Revision: 2004 November                                                     EC-6                                                      2004 FX35/FX45
  Component Inspection ........................................ 575    .       ASCD INDICATOR ................................................. 632       .
  Removal and Installation ..................................... 575   .         Component Description ....................................... 632        .        A
DTC P2138 APP SENSOR .................................... 576          .         CONSULT-II Reference Value in Data Monitor Mode
  Component Description ....................................... 576    .                                                                                  . 632
  CONSULT-II Reference Value in Data Monitor Mode                                Wiring Diagram .................................................... 633  .        EC
                                                                       . 576     Diagnostic Procedure .......................................... 634      .
  On Board Diagnosis Logic .................................. 576      .       SNOW MODE SWITCH ......................................... 635             .
  DTC Confirmation Procedure .............................. 577        .         Description ........................................................... 635
                                                                                                                                                          .
  Wiring Diagram ................................................... 578
                                                                       .         CONSULT-II Reference Value in the Data Monitor                                    C
  Diagnostic Procedure .......................................... 579  .         Mode .................................................................... 635
                                                                                                                                                          .
  Component Inspection ........................................ 584    .         Wiring Diagram .................................................... 636  .
  Removal and Installation ..................................... 584   .         Diagnostic Procedure .......................................... 637      .        D
IGNITION SIGNAL ................................................. 585  .         Component Inspection ......................................... 640       .
  Component Description ....................................... 585    .       MIL AND DATA LINK CONNECTOR ..................... 641                      .
  Wiring Diagram ................................................... 586
                                                                       .         Wiring Diagram .................................................... 641  .        E
  Diagnostic P



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