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ENGINE CONTROL SYSTEM


B ENGINE

                                                                                                                                                                          A




                                                                           ENGINE CONTROL SYSTEM
                                                                                                        SECTION                     EC                                    EC



                                                                                                                                                                          C


                                                                                                                                                                          D


                                                                                                                                                                          E
                                                                    CONTENTS
INDEX FOR DTC ....................................................... 8     .         Description ............................................................. 44
                                                                                                                                                                 .        F
  DTC No. Index ........................................................ 8  .         Component Inspection ........................................... 44        .
  Alphabetical Index ................................................. 12   .        NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-
PRECAUTIONS ....................................................... 16      .        NATS) ....................................................................... 46
                                                                                                                                                                 .        G
  Precautions for Supplemental Restraint System                                       Description ............................................................. 46
                                                                                                                                                                 .
  (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                            ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 47                             .
  SIONER" ............................................................... 16.         Introduction ............................................................ 47
                                                                                                                                                                 .
                                                                                                                                                                          H
  Precautions for Battery Service ............................. 16          .         Two Trip Detection Logic ....................................... 47        .
  On Board Diagnostic (OBD) System of Engine and                                      Emission-related Diagnostic Information ............... 48                 .
  A/T ......................................................................... 16
                                                                            .         Malfunction Indicator Lamp (MIL) .......................... 62             .
  Precaution ............................................................. 17
                                                                            .         OBD System Operation Chart ............................... 66              .         I
PREPARATION ........................................................ 20     .        BASIC SERVICE PROCEDURE .............................. 71                   .
  Special Service Tools ............................................ 20     .         Basic Inspection .................................................... 71   .
  Commercial Service Tools ..................................... 21         .         Idle Speed and Ignition Timing Check ................... 76                .        J
ENGINE CONTROL SYSTEM ................................. 22                  .         VIN Registration .................................................... 77   .
  System Diagram (A/T Models) .............................. 22             .         Exhaust Valve Timing Control Learning (M/T Mod-
  System Diagram (M/T Models) ............................. 23              .         els) ......................................................................... 78
                                                                                                                                                                 .
                                                                                                                                                                          K
  Multiport Fuel Injection (MFI) System ................... 24              .         Accelerator Pedal Released Position Learning ..... 78                      .
  Electronic Ignition (EI) System .............................. 26         .         Throttle Valve Closed Position Learning ................ 79                .
  Fuel Cut Control (at No Load and High Engine                                        Idle Air Volume Learning ....................................... 79        .
  Speed) ................................................................... 27
                                                                            .         Fuel Pressure Check ............................................. 81       .        L
AIR CONDITIONING CUT CONTROL .................... 28                        .        TROUBLE DIAGNOSIS ........................................... 83            .
  Input/Output Signal Chart ...................................... 28       .         Trouble Diagnosis Introduction .............................. 83           .
AUTOMATIC SPEED CONTROL DEVICE (ASCD) 29                                    ...       DTC Inspection Priority Chart ................................ 89          .        M
  System Description ............................................... 29     .         Fail-safe Chart ....................................................... 91 .
  Component Description ......................................... 30        .         Symptom Matrix Chart ........................................... 92        .
CAN COMMUNICATION ......................................... 31              .         Engine Control Component Parts Location (A/T
  System Description ............................................... 31     .         Models) .................................................................. 96
                                                                                                                                                                 .
EVAPORATIVE EMISSION SYSTEM ...................... 32                       .         Engine Control Component Parts Location (M/T
  Description ............................................................ 32
                                                                            .         Models) ................................................................ 102
                                                                                                                                                                 .
  Component Inspection .......................................... 35        .         Vacuum Hose Drawing ........................................ 108           .
  Removal and Installation ....................................... 36       .         Circuit Diagram .................................................... 109   .
  How to Detect Fuel Vapor Leakage ...................... 36                .         ECM Harness Connector Terminal Layout ...........111                       .
ON BOARD REFUELING VAPOR RECOVERY                                                     ECM Terminals and Reference Value ...................111                   .
(ORVR) ..................................................................... 39
                                                                            .         CONSULT-II Function (ENGINE) ......................... 122                 .
  System Description ............................................... 39     .         Generic Scan Tool (GST) Function ...................... 135                .
  Diagnostic Procedure ............................................ 40      .         CONSULT-II Reference Value in Data Monitor .... 137                        .
  Component Inspection .......................................... 42        .         Major Sensor Reference Graph in Data Monitor
POSITIVE CRANKCASE VENTILATION ................ 44                          .         Mode .................................................................... 141
                                                                                                                                                                 .
                                                                                     TROUBLE DIAGNOSIS - SPECIFICATION VALUE 143                                 .


Revision: 2005 August                                                          EC-1                                                                    2006 350Z
 Description ........................................................... 143
                                                                          .        Diagnostic Procedure ........................................... 192     .
 Testing Condition ................................................. 143  .        Component Inspection ......................................... 194       .
 Inspection Procedure ........................................... 143     .        Removal and Installation ...................................... 194      .
 Diagnostic Procedure .......................................... 144      .       DTC P0075, P0081 IVT CONTROL SOLENOID
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-                                          VALVE ..................................................................... 195
                                                                                                                                                            .
DENT ...................................................................... 153
                                                                          .        Component Description ....................................... 195        .
 Description ........................................................... 153
                                                                          .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 153      .                                                                                 .195
POWER SUPPLY AND GROUND CIRCUIT .......... 154                            .        On Board Diagnosis Logic ................................... 195         .
 Wiring Diagram .................................................... 154  .        DTC Confirmation Procedure ............................... 195           .
 Diagnostic Procedure .......................................... 157      .        Wiring Diagram .................................................... 196  .
 Ground Inspection ............................................... 162    .        Diagnostic Procedure ........................................... 200     .
DTC U1000, U1001 CAN COMMUNICATION LINE. 163                                       Component Inspection ......................................... 202       .
 Description ........................................................... 163
                                                                          .        Removal and Installation ...................................... 202      .
 On Board Diagnosis Logic ................................... 163         .       DTC P0078 P0084 EVT CONTROL MAGNET
 DTC Confirmation Procedure .............................. 163            .       RETARDER ............................................................ 203 .
 Wiring Diagram .................................................... 164  .        Component Description ....................................... 203        .
 Diagnostic Procedure .......................................... 165      .        CONSULT-II Reference Value in Data Monitor Mode
DTC U1010 CAN COMMUNICATION .................... 166                      .                                                                                 .203
 Description ........................................................... 166
                                                                          .        On Board Diagnosis Logic ................................... 203         .
 On Board Diagnosis Logic ................................... 166         .        DTC Confirmation Procedure ............................... 203           .
 DTC Confirmation Procedure .............................. 166            .        Wiring Diagram .................................................... 204  .
 Diagnostic Procedure .......................................... 167      .        Diagnostic Procedure ........................................... 208     .
DTC P0011, P0021 IVT CONTROL ....................... 168                  .        Component Inspection ......................................... 210       .
 Description ........................................................... 168
                                                                          .        Removal and Installation ...................................... 210      .
 CONSULT-II Reference Value in Data Monitor Mode                                  DTC P0101 MAF SENSOR .................................... 211             .
                                                                          . 168    Component Description ....................................... 211        .
 On Board Diagnosis Logic ................................... 169         .        CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 169            .                                                                                 . 211
 Diagnostic Procedure .......................................... 170      .        On Board Diagnosis Logic ................................... 211         .
 Component Inspection ......................................... 172       .        DTC Confirmation Procedure ............................... 212           .
 Removal and Installation ..................................... 172       .        Overall Function Check ........................................ 213      .
DTC P0014 P0024 EVT CONTROL ....................... 173                   .        Wiring Diagram .................................................... 214  .
 Description ........................................................... 173
                                                                          .        Diagnostic Procedure ........................................... 215     .
 CONSULT-II Reference Value in Data Monitor Mode                                   Component Inspection ......................................... 218       .
                                                                          . 173    Removal and Installation ...................................... 219      .
 On Board Diagnosis Logic ................................... 174         .       DTC P0102, P0103 MAF SENSOR ........................ 220                  .
 DTC Confirmation Procedure .............................. 174            .        Component Description ....................................... 220        .
 Diagnostic Procedure .......................................... 175      .        CONSULT-II Reference Value in Data Monitor Mode
 Component Inspection ......................................... 177       .                                                                                 .220
 Removal and Installation ..................................... 177       .        On Board Diagnosis Logic ................................... 220         .
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1                                        DTC Confirmation Procedure ............................... 221           .
HEATER ................................................................. 178
                                                                          .        Wiring Diagram .................................................... 222  .
 Description ........................................................... 178
                                                                          .        Diagnostic Procedure ........................................... 223     .
 CONSULT-II Reference Value in Data Monitor Mode                                   Component Inspection ......................................... 226       .
                                                                          . 178    Removal and Installation ...................................... 227      .
 On Board Diagnosis Logic ................................... 178         .       DTC P0112, P0113 IAT SENSOR ........................... 228               .
 DTC Confirmation Procedure .............................. 178            .        Component Description ....................................... 228        .
 Wiring Diagram .................................................... 179  .        On Board Diagnosis Logic ................................... 228         .
 Diagnostic Procedure .......................................... 183      .        DTC Confirmation Procedure ............................... 228           .
 Component Inspection ......................................... 185       .        Wiring Diagram .................................................... 230  .
 Removal and Installation ..................................... 185       .        Diagnostic Procedure ........................................... 231     .
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER 186                           .        Component Inspection ......................................... 233       .
 Description ........................................................... 186
                                                                          .        Removal and Installation ...................................... 233      .
 CONSULT-II Reference Value in Data Monitor Mode                                  DTC P0117, P0118 ECT SENSOR ......................... 234                 .
                                                                          . 186    Component Description ....................................... 234        .
 On Board Diagnosis Logic ................................... 186         .        On Board Diagnosis Logic ................................... 234         .
 DTC Confirmation Procedure .............................. 187            .        DTC Confirmation Procedure ............................... 235           .
 Wiring Diagram .................................................... 188  .        Wiring Diagram .................................................... 236  .

Revision: 2005 August                                                        EC-2                                                                 2006 350Z
 Diagnostic Procedure .......................................... 237
                                                                  .        Diagnostic Procedure .......................................... 284 .
 Component Inspection ........................................ 239.        Removal and Installation ..................................... 287  .       A
 Removal and Installation ..................................... 239
                                                                  .       DTC P0133, P0153 A/F SENSOR 1 ...................... 288             .
DTC P0122, P0123 TP SENSOR .......................... 240         .        Component Description ....................................... 288   .
 Component Description ....................................... 240.        CONSULT-II Reference Value in Data Monitor Mode                             EC
 CONSULT-II Reference Value in Data Monitor Mode                                                                                               . 288
                                                                  . 240    On Board Diagnosis Logic ................................... 288    .
 On Board Diagnosis Logic .................................. 240  .        DTC Confirmation Procedure .............................. 289       .
 DTC Confirmation Procedure .............................. 241    .        Wiring Diagram .................................................... 291
                                                                                                                                               .       C
 Wiring Diagram ................................................... 242
                                                                  .        Diagnostic Procedure .......................................... 295 .
 Diagnostic Procedure .......................................... 244
                                                                  .        Removal and Installation ..................................... 300  .
 Component Inspection ........................................ 247.       DTC P0137, P0157 HO2S2 .................................... 301      .       D
 Removal and Installation ..................................... 247
                                                                  .        Component Description ....................................... 301   .
DTC P0125 ECT SENSOR .................................... 248     .        CONSULT-II Reference Value in Data Monitor Mode
 Component Description ....................................... 248.                                                                            . 301   E
 On Board Diagnosis Logic .................................. 248  .        On Board Diagnosis Logic ................................... 301    .
 DTC Confirmation Procedure .............................. 249    .        DTC Confirmation Procedure .............................. 302       .
 Diagnostic Procedure .......................................... 250
                                                                  .        Overall Function Check ....................................... 302  .
 Component Inspection ........................................ 251.        Wiring Diagram .................................................... 304
                                                                                                                                               .       F
 Removal and Installation ..................................... 251
                                                                  .        Diagnostic Procedure .......................................... 308 .
DTC P0127 IAT SENSOR ...................................... 252   .        Component Inspection ......................................... 311  .
 Component Description ....................................... 252.        Removal and Installation ..................................... 312  .       G
 On Board Diagnosis Logic .................................. 252  .       DTC P0138, P0158 HO2S2 .................................... 313      .
 DTC Confirmation Procedure .............................. 252    .        Component Description ....................................... 313   .
 Diagnostic Procedure .......................................... 253
                                                                  .        CONSULT-II Reference Value in Data Monitor Mode                             H
 Component Inspection ........................................ 254.                                                                            . 313
 Removal and Installation ..................................... 254
                                                                  .        On Board Diagnosis Logic ................................... 313    .
DTC P0128 THERMOSTAT FUNCTION ............... 255                 .        DTC Confirmation Procedure .............................. 314       .
                                                                                                                                                        I
 On Board Diagnosis Logic .................................. 255  .        Overall Function Check ....................................... 315  .
 DTC Confirmation Procedure .............................. 255    .        Wiring Diagram .................................................... 316
                                                                                                                                               .
 Diagnostic Procedure .......................................... 255
                                                                  .        Diagnostic Procedure .......................................... 320 .
 Component Inspection ........................................ 256.        Component Inspection ......................................... 325  .       J
 Removal and Installation ..................................... 256
                                                                  .        Removal and Installation ..................................... 326  .
DTC P0130, P0150 A/F SENSOR 1 ...................... 257          .       DTC P0139, P0159 HO2S2 .................................... 327      .
 Component Description ....................................... 257.        Component Description ....................................... 327   .       K
 CONSULT-II Reference Value in Data Monitor Mode                           CONSULT-II Reference Value in Data Monitor Mode
                                                                  . 257                                                                        . 327
 On Board Diagnosis Logic .................................. 257  .        On Board Diagnosis Logic ................................... 327    .       L
 DTC Confirmation Procedure .............................. 258    .        DTC Confirmation Procedure .............................. 328       .
 Overall Function Check ....................................... 258
                                                                  .        Overall Function Check ....................................... 328  .
 Wiring Diagram ................................................... 260
                                                                  .        Wiring Diagram .................................................... 330
                                                                                                                                               .
 Diagnostic Procedure .......................................... 264
                                                                  .        Diagnostic Procedure .......................................... 334 .       M
 Removal and Installation ..................................... 267
                                                                  .        Component Inspection ......................................... 337  .
DTC P0131, P0151 A/F SENSOR 1 ...................... 268          .        Removal and Installation ..................................... 338  .
 Component Description ....................................... 268.       DTC P0171, P0174 FUEL INJECTION SYSTEM
 CONSULT-II Reference Value in Data Monitor Mode                          FUNCTION ............................................................. 339
                                                                                                                                               .
                                                                  . 268    On Board Diagnosis Logic ................................... 339    .
 On Board Diagnosis Logic .................................. 268  .        DTC Confirmation Procedure .............................. 339       .
 DTC Confirmation Procedure .............................. 269    .        Wiring Diagram .................................................... 341
                                                                                                                                               .
 Wiring Diagram ................................................... 270
                                                                  .        Diagnostic Procedure .......................................... 345 .
 Diagnostic Procedure .......................................... 274
                                                                  .       DTC P0172, P0175 FUEL INJECTION SYSTEM
 Removal and Installation ..................................... 277
                                                                  .       FUNCTION ............................................................. 351
                                                                                                                                               .
DTC P0132, P0152 A/F SENSOR 1 ...................... 278          .        On Board Diagnosis Logic ................................... 351    .
 Component Description ....................................... 278.        DTC Confirmation Procedure .............................. 351       .
 CONSULT-II Reference Value in Data Monitor Mode                           Wiring Diagram .................................................... 353
                                                                                                                                               .
                                                                  . 278    Diagnostic Procedure .......................................... 357 .
 On Board Diagnosis Logic .................................. 278  .       DTC P0181 FTT SENSOR ..................................... 362       .
 DTC Confirmation Procedure .............................. 279    .        Component Description ....................................... 362   .
 Wiring Diagram ................................................... 280
                                                                  .        On Board Diagnosis Logic ................................... 362    .

Revision: 2005 August                                                EC-3                                                             2006 350Z
  DTC Confirmation Procedure .............................. 362            .        DTC Confirmation Procedure ............................... 412           .
  Wiring Diagram .................................................... 364  .        Overall Function Check ........................................ 413      .
  Diagnostic Procedure .......................................... 365      .        Diagnostic Procedure ........................................... 414     .
  Component Inspection ......................................... 366       .       DTC P0441 EVAP CONTROL SYSTEM ................ 418                        .
  Removal and Installation ..................................... 366       .        System Description .............................................. 418    .
DTC P0182, P0183 FTT SENSOR ......................... 367                  .        On Board Diagnosis Logic ................................... 418         .
  Component Description ....................................... 367        .        DTC Confirmation Procedure ............................... 418           .
  On Board Diagnosis Logic ................................... 367         .        Overall Function Check ........................................ 419      .
  DTC Confirmation Procedure .............................. 367            .        Diagnostic Procedure ........................................... 420     .
  Wiring Diagram .................................................... 368  .       DTC P0442 EVAP CONTROL SYSTEM ................ 423                        .
  Diagnostic Procedure .......................................... 369      .        On Board Diagnosis Logic ................................... 423         .
  Component Inspection ......................................... 370       .        DTC Confirmation Procedure ............................... 424           .
  Removal and Installation ..................................... 370       .        Diagnostic Procedure ........................................... 425     .
DTC P0222, P0223 TP SENSOR ........................... 371                 .       DTC P0443 EVAP CANISTER PURGE VOLUME
  Component Description ....................................... 371        .       CONTROL SOLENOID VALVE .............................. 431                 .
  CONSULT-II Reference Value in Data Monitor Mode                                   Description ........................................................... 431
                                                                                                                                                             .
                                                                           . 371    CONSULT-II Reference Value in Data Monitor Mode
  On Board Diagnosis Logic ................................... 371         .                                                                                 .431
  DTC Confirmation Procedure .............................. 372            .        On Board Diagnosis Logic ................................... 432         .
  Wiring Diagram .................................................... 373  .        DTC Confirmation Procedure ............................... 432           .
  Diagnostic Procedure .......................................... 375      .        Wiring Diagram .................................................... 433  .
  Component Inspection ......................................... 378       .        Diagnostic Procedure ........................................... 435     .
  Removal and Installation ..................................... 378       .        Component Inspection ......................................... 438       .
DTC P0300 - P0306 MULTIPLE CYLINDER MIS-                                            Removal and Installation ...................................... 438      .
FIRE, NO. 1 - 6 CYLINDER MISFIRE .................... 379                  .       DTC P0444, P0445 EVAP CANISTER PURGE VOL-
  On Board Diagnosis Logic ................................... 379         .       UME CONTROL SOLENOID VALVE ..................... 439                      .
  DTC Confirmation Procedure .............................. 380            .        Description ........................................................... 439
                                                                                                                                                             .
  Diagnostic Procedure .......................................... 380      .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0327, P0328 KS ........................................... 389        .                                                                                 .439
  Component Description ....................................... 389        .        On Board Diagnosis Logic ................................... 440         .
  On Board Diagnosis Logic ................................... 389         .        DTC Confirmation Procedure ............................... 440           .
  DTC Confirmation Procedure .............................. 389            .        Wiring Diagram .................................................... 441  .
  Wiring Diagram .................................................... 390  .        Diagnostic Procedure ........................................... 443     .
  Diagnostic Procedure .......................................... 391      .        Component Inspection ......................................... 444       .
  Component Inspection ......................................... 393       .        Removal and Installation ...................................... 445      .
  Removal and Installation ..................................... 393       .       DTC P0447 EVAP CANISTER VENT CONTROL
DTC P0335 CKP SENSOR (POS) ......................... 394                   .       VALVE ..................................................................... 446
                                                                                                                                                             .
  Component Description ....................................... 394        .        Component Description ....................................... 446        .
  CONSULT-II Reference Value in Data Monitor Mode                                   CONSULT-II Reference Value in Data Monitor Mode
                                                                           . 394                                                                             .446
  On Board Diagnosis Logic ................................... 394         .        On Board Diagnosis Logic ................................... 446         .
  DTC Confirmation Procedure .............................. 395            .        DTC Confirmation Procedure ............................... 447           .
  Wiring Diagram .................................................... 396  .        Wiring Diagram .................................................... 448  .
  Diagnostic Procedure .......................................... 398      .        Diagnostic Procedure ........................................... 451     .
  Component Inspection ......................................... 401       .        Component Inspection ......................................... 453       .
  Removal and Installation ..................................... 401       .       DTC P0448 EVAP CANISTER VENT CONTROL
DTC P0340, P0345 CMP SENSOR (PHASE) ........ 402                           .       VALVE ..................................................................... 455
                                                                                                                                                             .
  Component Description ....................................... 402        .        Component Description ....................................... 455        .
  CONSULT-II Reference Value in Data Monitor Mode                                   CONSULT-II Reference Value in Data Monitor Mode
                                                                           . 402                                                                             .455
  On Board Diagnosis Logic ................................... 402         .        On Board Diagnosis Logic ................................... 455         .
  DTC Confirmation Procedure .............................. 403            .        DTC Confirmation Procedure ............................... 456           .
  Wiring Diagram .................................................... 404  .        Wiring Diagram .................................................... 457  .
  Diagnostic Procedure .......................................... 407      .        Diagnostic Procedure ........................................... 460     .
  Component Inspection ......................................... 411       .        Component Inspection ......................................... 462       .
  Removal and Installation ..................................... 411       .       DTC P0451 EVAP CONTROL SYSTEM PRESSURE
DTC P0420, P0430 THREE WAY CATALYST FUNC-                                          SENSOR ................................................................. 464
                                                                                                                                                             .
TION ....................................................................... 412
                                                                           .        Component Description ....................................... 464        .
  On Board Diagnosis Logic ................................... 412         .        CONSULT-II Reference Value in Data Monitor Mode

Revision: 2005 August                                                         EC-4                                                                 2006 350Z
                                                                      . 464    Description ........................................................... 507
                                                                                                                                                         .
 On Board Diagnosis Logic .................................. 464      .        On Board Diagnosis Logic ................................... 507          .       A
 DTC Confirmation Procedure .............................. 465        .        DTC Confirmation Procedure .............................. 507             .
 Diagnostic Procedure .......................................... 465  .        Diagnostic Procedure .......................................... 508       .
 Component Inspection ........................................ 466    .       DTC P0507 ISC SYSTEM ...................................... 509            .       EC
DTC P0452 EVAP CONTROL SYSTEM PRESSURE                                         Description ........................................................... 509
                                                                                                                                                         .
SENSOR ................................................................ 467
                                                                      .        On Board Diagnosis Logic ................................... 509          .
 Component Description ....................................... 467    .        DTC Confirmation Procedure .............................. 509             .
 CONSULT-II Reference Value in Data Monitor Mode                               Diagnostic Procedure .......................................... 510       .       C
                                                                      . 467   DTC P0550 PSP SENSOR .................................... 511              .
 On Board Diagnosis Logic .................................. 467      .        Component Description ....................................... 511         .
 DTC Confirmation Procedure .............................. 468        .        CONSULT-II Reference Value in Data Monitor Mode                                   D
 Wiring Diagram ................................................... 469
                                                                      .                                                                                  . 511
 Diagnostic Procedure .......................................... 470  .        On Board Diagnosis Logic ................................... 511          .
 Component Inspection ........................................ 473    .        DTC Confirmation Procedure .............................. 511             .       E
DTC P0453 EVAP CONTROL SYSTEM PRESSURE                                         Wiring Diagram .................................................... 512   .
SENSOR ................................................................ 474
                                                                      .        Diagnostic Procedure .......................................... 513       .
 Component Description ....................................... 474    .        Component Inspection ......................................... 515        .
 CONSULT-II Reference Value in Data Monitor Mode                               Removal and Installation ..................................... 515        .       F
                                                                      . 474   DTC P0603 ECM POWER SUPPLY ...................... 516                      .
 On Board Diagnosis Logic .................................. 474      .        Component Description ....................................... 516         .
 DTC Confirmation Procedure .............................. 475        .        On Board Diagnosis Logic ................................... 516          .       G
 Wiring Diagram ................................................... 476
                                                                      .        DTC Confirmation Procedure .............................. 516             .
 Diagnostic Procedure .......................................... 477  .        Wiring Diagram .................................................... 517   .
 Component Inspection ........................................ 481    .        Diagnostic Procedure .......................................... 518       .       H
DTC P0455 EVAP CONTROL SYSTEM ............... 482                     .       DTC P0605 ECM .................................................... 520     .
 On Board Diagnosis Logic .................................. 482      .        Component Description ....................................... 520         .
 DTC Confirmation Procedure .............................. 483        .        On Board Diagnosis Logic ................................... 520          .
                                                                                                                                                                  I
 Diagnostic Procedure .......................................... 484  .        DTC Confirmation Procedure .............................. 520             .
DTC P0456 EVAP CONTROL SYSTEM ............... 490                     .        Diagnostic Procedure .......................................... 521       .
 On Board Diagnosis Logic .................................. 490      .       DTC P0643 SENSOR POWER SUPPLY ............... 523                          .
 DTC Confirmation Procedure .............................. 491        .        On Board Diagnosis Logic ................................... 523          .       J
 Overall Function Check ....................................... 492   .        DTC Confirmation Procedure .............................. 523             .
 Diagnostic Procedure .......................................... 492  .        Wiring Diagram .................................................... 524   .
DTC P0460 FUEL LEVEL SENSOR ..................... 499                 .        Diagnostic Procedure .......................................... 526       .       K
 Component Description ....................................... 499    .       DTC P0850 PNP SWITCH ..................................... 529             .
 On Board Diagnosis Logic .................................. 499      .        Component Description ....................................... 529         .
 DTC Confirmation Procedure .............................. 499        .        CONSULT-II Reference Value in Data Monitor Mode                                   L
 Diagnostic Procedure .......................................... 500  .                                                                                  . 529
 Removal and Installation ..................................... 500   .        On Board Diagnosis Logic ................................... 529          .
DTC P0461 FUEL LEVEL SENSOR ..................... 501                 .        DTC Confirmation Procedure .............................. 529             .
 Component Description ....................................... 501    .        Overall Function Check ....................................... 530        .       M
 On Board Diagnosis Logic .................................. 501      .        Wiring Diagram .................................................... 531   .
 Overall Function Check ....................................... 501   .        Diagnostic Procedure .......................................... 534       .
 Diagnostic Procedure .......................................... 502  .       DTC P1078 P1084 EVT CONTROL POSITION SEN-
 Removal and Installation ..................................... 502   .       SOR ........................................................................ 537
                                                                                                                                                         .
DTC P0462, P0463 FUEL LEVEL SENSOR ......... 503                      .        Component Description ....................................... 537         .
 Component Description ....................................... 503    .        CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic .................................. 503      .                                                                                  . 537
 DTC Confirmation Procedure .............................. 503        .        On Board Diagnosis Logic ................................... 537          .
 Diagnostic Procedure .......................................... 504  .        DTC Confirmation Procedure .............................. 537             .
 Removal and Installation ..................................... 504   .        Wiring Diagram .................................................... 538   .
DTC P0500 VSS .................................................... 505.        Diagnostic Procedure .......................................... 542       .
 Description .......................................................... 505
                                                                      .        Component Inspection ......................................... 546        .
 On Board Diagnosis Logic .................................. 505      .        Removal and Installation ..................................... 546        .
 DTC Confirmation Procedure .............................. 505        .       DTC P1148, P1168 CLOSED LOOP CONTROL ... 547                               .
 Overall Function Check ....................................... 506   .        On Board Diagnosis Logic ................................... 547          .
 Diagnostic Procedure .......................................... 506  .       DTC P1211 TCS CONTROL UNIT ......................... 548                   .
DTC P0506 ISC SYSTEM ...................................... 507       .        Description ........................................................... 548
                                                                                                                                                         .

Revision: 2005 August                                                   EC-5                                                                  2006 350Z
 On Board Diagnosis Logic ................................... 548      .        On Board Diagnosis Logic ................................... 592        .
 DTC Confirmation Procedure .............................. 548         .        Diagnostic Procedure ........................................... 592    .
 Diagnostic Procedure .......................................... 548   .       DTC P1805 BRAKE SWITCH ................................ 593              .
DTC P1212 TCS COMMUNICATION LINE ........... 549                       .        Description ........................................................... 593
                                                                                                                                                        .
 Description ........................................................... 549
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic ................................... 549      .                                                                                .593
 DTC Confirmation Procedure .............................. 549         .        On Board Diagnosis Logic ................................... 593        .
 Diagnostic Procedure .......................................... 549   .        DTC Confirmation Procedure ............................... 593          .
DTC P1217 ENGINE OVER TEMPERATURE ....... 550                          .        Wiring Diagram .................................................... 594 .
 Description ........................................................... 550
                                                                       .        Diagnostic Procedure ........................................... 595    .
 CONSULT-II Reference Value in Data Monitor Mode                                Component Inspection ......................................... 597      .
                                                                       . 551   DTC P2100, P2103 THROTTLE CONTROL MOTOR
 On Board Diagnosis Logic ................................... 551      .       RELAY .................................................................... 598
                                                                                                                                                        .
 Overall Function Check ....................................... 552    .        Component Description ....................................... 598       .
 Wiring Diagram .................................................... 554
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 556   .                                                                                .598
 Main 12 Causes of Overheating .......................... 561          .        On Board Diagnosis Logic ................................... 598        .
 Component Inspection ......................................... 561    .        DTC Confirmation Procedure ............................... 598          .
DTC P1225 TP SENSOR ....................................... 562        .        Wiring Diagram .................................................... 600 .
 Component Description ....................................... 562     .        Diagnostic Procedure ........................................... 601    .
 On Board Diagnosis Logic ................................... 562      .       DTC P2101 ELECTRIC THROTTLE CONTROL
 DTC Confirmation Procedure .............................. 562         .       FUNCTION ............................................................. 604
                                                                                                                                                        .
 Diagnostic Procedure .......................................... 563   .        Description ........................................................... 604
                                                                                                                                                        .
 Removal and Installation ..................................... 563    .        On Board Diagnosis Logic ................................... 604        .
DTC P1226 TP SENSOR ....................................... 564        .        DTC Confirmation Procedure ............................... 604          .
 Component Description ....................................... 564     .        Wiring Diagram .................................................... 605 .
 On Board Diagnosis Logic ................................... 564      .        Diagnostic Procedure ........................................... 607    .
 DTC Confirmation Procedure .............................. 564         .        Component Inspection ......................................... 610      .
 Diagnostic Procedure .......................................... 565   .        Removal and Installation ...................................... 610     .
 Removal and Installation ..................................... 565    .       DTC P2118 THROTTLE CONTROL MOTOR ........ 611                            .
DTC P1564 ASCD STEERING SWITCH ............... 566                     .        Component Description ....................................... 611       .
 Component Description ....................................... 566     .        On Board Diagnosis Logic ................................... 611        .
 CONSULT-II Reference Value in Data Monitor Mode                                DTC Confirmation Procedure ............................... 611          .
                                                                       . 566    Wiring Diagram .................................................... 612 .
 On Board Diagnosis Logic ................................... 566      .        Diagnostic Procedure ........................................... 614    .
 DTC Confirmation Procedure .............................. 567         .        Component Inspection ......................................... 615      .
 Wiring Diagram .................................................... 568
                                                                       .        Removal and Installation ...................................... 615     .
 Diagnostic Procedure .......................................... 570   .       DTC P2119 ELECTRIC THROTTLE CONTROL
 Component Inspection ......................................... 573    .       ACTUATOR ............................................................ 616.
DTC P1572 ASCD BRAKE SWITCH ..................... 574                  .        Component Description ....................................... 616       .
 Component Description ....................................... 574     .        On Board Diagnosis Logic ................................... 616        .
 CONSULT-II Reference Value in Data Monitor Mode                                DTC Confirmation Procedure ............................... 616          .
                                                                       . 574    Diagnostic Procedure ........................................... 617    .
 On Board Diagnosis Logic ................................... 574      .       DTC P2122, P2123 APP SENSOR ........................ 618                 .
 DTC Confirmation Procedure .............................. 575         .        Component Description ....................................... 618       .
 Wiring Diagram .................................................... 576
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 579   .                                                                                .618
 Component Inspection ......................................... 589    .        On Board Diagnosis Logic ................................... 618        .
DTC P1574 ASCD VEHICLE SPEED SENSOR .... 590                           .        DTC Confirmation Procedure ............................... 619          .
 Component Description ....................................... 590     .        Wiring Diagram .................................................... 620 .
 On Board Diagnosis Logic ................................... 590      .        Diagnostic Procedure ........................................... 622    .
 DTC Confirmation Procedure .............................. 590         .        Component Inspection ......................................... 625      .
 Diagnostic Procedure .......................................... 591   .        Removal and Installation ...................................... 625     .
DTC P1715 INPUT SPEED SENSOR (TURBINE                                          DTC P2127, P2128 APP SENSOR ........................ 626                 .
REVOLUTION SENSOR) ....................................... 592         .        Component Description ....................................... 626       .
 Description ........................................................... 592
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 CONSULT-II Reference Value in Data Monitor Mode                                                                                                        .626
                                                                       . 592    On Board Diagnosis Logic ................................... 626        .
                                                                                DTC Confirmation Procedure ............................... 627          .

Revision: 2005 August                                                     EC-6                                                                2006 350Z
 Wiring Diagram ................................................... 628
                                                                  .         Description ........................................................... 680
                                                                                                                                                  .
 Diagnostic Procedure .......................................... 630
                                                                  .         CONSULT-II Reference Value in Data Monitor Mode                               A
 Component Inspection ........................................ 633.                                                                               . 680
 Removal and Installation ..................................... 633
                                                                  .         Diagnostic Procedure .......................................... 680   .
DTC P2135 TP SENSOR ....................................... 634   .       FUEL INJECTOR ................................................... 682   .       EC
 Component Description ....................................... 634.         Component Description ....................................... 682     .
 CONSULT-II Reference Value in Data Monitor Mode                            CONSULT-II Reference Value in Data Monitor Mode
                                                                  . 634                                                                           . 682
 On Board Diagnosis Logic .................................. 634  .         Wiring Diagram .................................................... 683
                                                                                                                                                  .       C
 DTC Confirmation Procedure .............................. 635    .         Diagnostic Procedure .......................................... 684   .
 Wiring Diagram ................................................... 636
                                                                  .         Component Inspection ......................................... 689    .
 Diagnostic Procedure .......................................... 638
                                                                  .         Removal and Installation ..................................... 689    .       D
 Component Inspection ........................................ 641.       FUEL PUMP ........................................................... 690
                                                                                                                                                  .
 Removal and Installation ..................................... 641
                                                                  .         Description ........................................................... 690
                                                                                                                                                  .
DTC P2138 APP SENSOR .................................... 642     .         CONSULT-II Reference Value in Data Monitor Mode                               E
 Component Description ....................................... 642.                                                                               . 690
 CONSULT-II Reference Value in Data Monitor Mode                            Wiring Diag



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