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ENGINE CONTROL SYSTEM


B ENGINE

                                                                                                                                                                      A




                                                                          ENGINE CONTROL SYSTEM
                                                                                                     SECTION                     EC                                   EC



                                                                                                                                                                      C


                                                                                                                                                                      D


                                                                                                                                                                      E
                                                                   CONTENTS
INDEX FOR DTC ....................................................... 8   .        NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-                                           F
  DTC No. Index ........................................................ 8.        NATS) ....................................................................... 44
                                                                                                                                                             .
  Alphabetical Index ..................................................11 .         Description ............................................................. 44
                                                                                                                                                             .
PRECAUTIONS ....................................................... 15    .        ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 45                           .        G
  Precautions for Supplemental Restraint System                                     Introduction ............................................................ 45
                                                                                                                                                             .
  (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                           Two Trip Detection Logic ....................................... 45      .
  SIONER" ............................................................... 15
                                                                          .         Emission-Related Diagnostic Information .............. 46                .
                                                                                                                                                                      H
  On Board Diagnostic (OBD) System of Engine and                                    Malfunction Indicator Lamp (MIL) .......................... 59           .
  CVT ....................................................................... 15
                                                                          .         OBD System Operation Chart ............................... 63            .
  Precaution ............................................................. 15
                                                                          .        BASIC SERVICE PROCEDURE .............................. 68                 .
PREPARATION ........................................................ 19   .         Basic Inspection .................................................... 68 .         I
  Special Service Tools ............................................ 19   .         Idle Speed and Ignition Timing Check ................... 73              .
  Commercial Service Tools ..................................... 20       .         VIN Registration .................................................... 75 .
ENGINE CONTROL SYSTEM ................................. 21                .         Accelerator Pedal Released Position Learning ..... 75                    .        J
  System Diagram .................................................... 21  .         Throttle Valve Closed Position Learning ................ 75              .
  Multiport Fuel Injection (MFI) System ................... 22            .         Idle Air Volume Learning ....................................... 76      .
  Electronic Ignition (EI) System .............................. 24       .         Fuel Pressure Check ............................................. 78     .
                                                                                                                                                                      K
  Fuel Cut Control (at No Load and High Engine                                     TROUBLE DIAGNOSIS ........................................... 80          .
  Speed) ................................................................... 25
                                                                          .         Trouble Diagnosis Introduction .............................. 80         .
AIR CONDITIONING CUT CONTROL .................... 26                      .         DTC Inspection Priority Chart ................................ 86        .
  Input/Output Signal Chart ...................................... 26     .         Fail-Safe Chart ...................................................... 88.        L
  System Description ............................................... 26   .         Symptom Matrix Chart ........................................... 89      .
AUTOMATIC SPEED CONTROL DEVICE (ASCD) 27                                  ...       Engine Control Component Parts Location ........... 93                   .
  System Description ............................................... 27   .         Vacuum Hose Drawing .......................................... 99        .        M
  Component Description ......................................... 28      .         Circuit Diagram .................................................... 100 .
CAN COMMUNICATION ......................................... 29            .         ECM Harness Connector Terminal Layout .......... 102                     .
  System Description ............................................... 29   .         ECM Terminals and Reference Value .................. 102                 .
EVAPORATIVE EMISSION SYSTEM ...................... 30                     .         CONSULT-II Function (ENGINE) ......................... 112               .
  Description ............................................................ 30
                                                                          .         Generic Scan Tool (GST) Function ...................... 124              .
  Component Inspection .......................................... 33      .         CONSULT-II Reference Value in Data Monitor .... 127                      .
  Removal and Installation ....................................... 34     .         Major Sensor Reference Graph in Data Monitor
  How to Detect Fuel Vapor Leakage ...................... 34              .         Mode .................................................................... 130
                                                                                                                                                             .
ON BOARD REFUELING VAPOR RECOVERY                                                  TROUBLE DIAGNOSIS - SPECIFICATION VALUE 132                               .
(ORVR) ..................................................................... 37
                                                                          .         Description ........................................................... 132
                                                                                                                                                             .
  System Description ............................................... 37   .         Testing Condition ................................................. 132  .
  Diagnostic Procedure ............................................ 38    .         Inspection Procedure ........................................... 132     .
  Component Inspection .......................................... 40      .         Diagnostic Procedure .......................................... 133      .
POSITIVE CRANKCASE VENTILATION ................ 42                        .        TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
  Description ............................................................ 42
                                                                          .        DENT ...................................................................... 142
                                                                                                                                                             .
  Component Inspection .......................................... 42      .


Revision: 2005 September                                                     EC-1                                                               2006 Murano
 Description ........................................................... 142
                                                                         .        Component Description ....................................... 187 .
 Diagnostic Procedure .......................................... 142     .        CONSULT-II Reference Value in Data Monitor Mode
POWER SUPPLY AND GROUND CIRCUIT .......... 143                           .                                                                          .187
 Wiring Diagram .................................................... 143 .        On Board Diagnosis Logic ................................... 187  .
 Diagnostic Procedure .......................................... 146     .        DTC Confirmation Procedure ............................... 188    .
 Ground Inspection ............................................... 151   .        Overall Function Check ........................................ 189
                                                                                                                                                    .
DTC U1000, U1001 CAN COMMUNICATION LINE. 152                                      Wiring Diagram .................................................... 190
                                                                                                                                                    .
 Description ........................................................... 152
                                                                         .        Diagnostic Procedure ........................................... 191
                                                                                                                                                    .
 On Board Diagnosis Logic ................................... 152        .        Component Inspection ......................................... 194.
 DTC Confirmation Procedure .............................. 152           .        Removal and Installation ...................................... 195
                                                                                                                                                    .
 Wiring Diagram .................................................... 153 .       DTC P0102, P0103 MAF SENSOR ........................ 196           .
 Diagnostic Procedure .......................................... 154     .        Component Description ....................................... 196 .
DTC U1010 CAN COMMUNICATION .................... 155                     .        CONSULT-II Reference Value in Data Monitor Mode
 Description ........................................................... 155
                                                                         .                                                                          .196
 On Board Diagnosis Logic ................................... 155        .        On Board Diagnosis Logic ................................... 196  .
 DTC Confirmation Procedure .............................. 155           .        DTC Confirmation Procedure ............................... 197    .
 Diagnostic Procedure .......................................... 156     .        Wiring Diagram .................................................... 198
                                                                                                                                                    .
DTC P0011, P0021 IVT CONTROL ....................... 157                 .        Diagnostic Procedure ........................................... 199
                                                                                                                                                    .
 Description ........................................................... 157
                                                                         .        Component Inspection ......................................... 202.
 CONSULT-II Reference Value in Data Monitor Mode                                  Removal and Installation ...................................... 203
                                                                                                                                                    .
                                                                         . 157   DTC P0112, P0113 IAT SENSOR ........................... 204        .
 On Board Diagnosis Logic ................................... 158        .        Component Description ....................................... 204 .
 DTC Confirmation Procedure .............................. 158           .        On Board Diagnosis Logic ................................... 204  .
 Diagnostic Procedure .......................................... 159     .        DTC Confirmation Procedure ............................... 204    .
 Component Inspection ......................................... 160      .        Wiring Diagram .................................................... 206
                                                                                                                                                    .
 Removal and Installation ..................................... 160      .        Diagnostic Procedure ........................................... 207
                                                                                                                                                    .
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1                                       Component Inspection ......................................... 208.
HEATER ................................................................. 161
                                                                         .        Removal and Installation ...................................... 208
                                                                                                                                                    .
 Description ........................................................... 161
                                                                         .       DTC P0117, P0118 ECT SENSOR ......................... 209          .
 CONSULT-II Reference Value in Data Monitor Mode                                  Component Description ....................................... 209 .
                                                                         . 161    On Board Diagnosis Logic ................................... 209  .
 On Board Diagnosis Logic ................................... 161        .        DTC Confirmation Procedure ............................... 210    .
 DTC Confirmation Procedure .............................. 161           .        Wiring Diagram .................................................... 211
                                                                                                                                                    .
 Wiring Diagram .................................................... 163 .        Diagnostic Procedure ........................................... 212
                                                                                                                                                    .
 Diagnostic Procedure .......................................... 166     .        Component Inspection ......................................... 213.
 Component Inspection ......................................... 169      .        Removal and Installation ...................................... 213
                                                                                                                                                    .
 Removal and Installation ..................................... 169      .       DTC P0122, P0123 TP SENSOR ........................... 214         .
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER 170                          .        Component Description ....................................... 214 .
 Description ........................................................... 170
                                                                         .        CONSULT-II Reference Value in Data Monitor Mode
 CONSULT-II Reference Value in Data Monitor Mode                                                                                                    .214
                                                                         . 170    On Board Diagnosis Logic ................................... 214  .
 On Board Diagnosis Logic ................................... 170        .        DTC Confirmation Procedure ............................... 215    .
 DTC Confirmation Procedure .............................. 171           .        Wiring Diagram .................................................... 216
                                                                                                                                                    .
 Wiring Diagram .................................................... 172 .        Diagnostic Procedure ........................................... 217
                                                                                                                                                    .
 Diagnostic Procedure .......................................... 175     .        Component Inspection ......................................... 220.
 Component Inspection ......................................... 178      .        Removal and Installation ...................................... 220
                                                                                                                                                    .
 Removal and Installation ..................................... 178      .       DTC P0125 ECT SENSOR ..................................... 221     .
DTC P0075, P0081 IVT CONTROL SOLENOID                                             Component Description ....................................... 221 .
VALVE .................................................................... 179
                                                                         .        On Board Diagnosis Logic ................................... 221  .
 Component Description ....................................... 179       .        DTC Confirmation Procedure ............................... 222    .
 CONSULT-II Reference Value in Data Monitor Mode                                  Diagnostic Procedure ........................................... 222
                                                                                                                                                    .
                                                                         . 179    Component Inspection ......................................... 223.
 On Board Diagnosis Logic ................................... 179        .        Removal and Installation ...................................... 223
                                                                                                                                                    .
 DTC Confirmation Procedure .............................. 179           .       DTC P0127 IAT SENSOR ....................................... 224   .
 Wiring Diagram .................................................... 180 .        Component Description ....................................... 224 .
 Diagnostic Procedure .......................................... 184     .        On Board Diagnosis Logic ................................... 224  .
 Component Inspection ......................................... 186      .        DTC Confirmation Procedure ............................... 224    .
 Removal and Installation ..................................... 186      .        Diagnostic Procedure ........................................... 225
                                                                                                                                                    .
DTC P0101 MAF SENSOR .................................... 187            .

Revision: 2005 September                                                    EC-2                                                        2006 Murano
 Component Inspection ........................................ 226.                                                                            . 284
 Removal and Installation ..................................... 226
                                                                  .         On Board Diagnosis Logic ................................... 284   .       A
DTC P0128 THERMOSTAT FUNCTION ............... 227                 .         DTC Confirmation Procedure .............................. 285      .
 On Board Diagnosis Logic .................................. 227  .         Overall Function Check ....................................... 286 .
 DTC Confirmation Procedure .............................. 227    .         Wiring Diagram .................................................... 287
                                                                                                                                               .       EC
 Diagnostic Procedure .......................................... 227
                                                                  .         Diagnostic Procedure .......................................... 290.
 Component Inspection ........................................ 228.         Component Inspection ......................................... 295 .
 Removal and Installation ..................................... 228
                                                                  .         Removal and Installation ..................................... 296 .
DTC P0130, P0150 A/F SENSOR 1 ...................... 229          .       DTC P0139, P0159 HO2S2 .................................... 297      .       C
 Component Description ....................................... 229.         Component Description ....................................... 297  .
 CONSULT-II Reference Value in Data Monitor Mode                            CONSULT-II Reference Value in Data Monitor Mode
                                                                  . 229                                                                        . 297   D
 On Board Diagnosis Logic .................................. 229  .         On Board Diagnosis Logic ................................... 297   .
 DTC Confirmation Procedure .............................. 229    .         DTC Confirmation Procedure .............................. 298      .
 Overall Function Check ....................................... 230
                                                                  .         Overall Function Check ....................................... 298 .       E
 Wiring Diagram ................................................... 232
                                                                  .         Wiring Diagram .................................................... 300
                                                                                                                                               .
 Diagnostic Procedure .......................................... 235
                                                                  .         Diagnostic Procedure .......................................... 303.
 Removal and Installation ..................................... 239
                                                                  .         Component Inspection ......................................... 306 .
DTC P0131, P0151 A/F SENSOR 1 ...................... 240          .         Removal and Installation ..................................... 307 .       F
 Component Description ....................................... 240.       DTC P0171, P0174 FUEL INJECTION SYSTEM
 CONSULT-II Reference Value in Data Monitor Mode                          FUNCTION ............................................................. 308
                                                                                                                                               .
                                                                  . 240     On Board Diagnosis Logic ................................... 308   .       G
 On Board Diagnosis Logic .................................. 240  .         DTC Confirmation Procedure .............................. 308      .
 DTC Confirmation Procedure .............................. 240    .         Wiring Diagram .................................................... 310
                                                                                                                                               .
 Wiring Diagram ................................................... 242
                                                                  .         Diagnostic Procedure .......................................... 314.       H
 Diagnostic Procedure .......................................... 245
                                                                  .       DTC P0172, P0175 FUEL INJECTION SYSTEM
 Removal and Installation ..................................... 249
                                                                  .       FUNCTION ............................................................. 320
                                                                                                                                               .
DTC P0132, P0152 A/F SENSOR 1 ...................... 250          .         On Board Diagnosis Logic ................................... 320   .
                                                                                                                                                        I
 Component Description ....................................... 250.         DTC Confirmation Procedure .............................. 320      .
 CONSULT-II Reference Value in Data Monitor Mode                            Wiring Diagram .................................................... 322
                                                                                                                                               .
                                                                  . 250     Diagnostic Procedure .......................................... 326.
 On Board Diagnosis Logic .................................. 250  .       DTC P0181 FTT SENSOR ..................................... 332       .       J
 DTC Confirmation Procedure .............................. 250    .         Component Description ....................................... 332  .
 Wiring Diagram ................................................... 252
                                                                  .         On Board Diagnosis Logic ................................... 332   .
 Diagnostic Procedure .......................................... 255
                                                                  .         DTC Confirmation Procedure .............................. 332      .       K
 Removal and Installation ..................................... 259
                                                                  .         Wiring Diagram .................................................... 334
                                                                                                                                               .
DTC P0133, P0153 A/F SENSOR 1 ...................... 260          .         Diagnostic Procedure .......................................... 335.
 Component Description ....................................... 260.         Component Inspection ......................................... 337 .       L
 CONSULT-II Reference Value in Data Monitor Mode                            Removal and Installation ..................................... 337 .
                                                                  . 260   DTC P0182, P0183 FTT SENSOR ......................... 338            .
 On Board Diagnosis Logic .................................. 260  .         Component Description ....................................... 338  .
 DTC Confirmation Procedure .............................. 261    .         On Board Diagnosis Logic ................................... 338   .       M
 Wiring Diagram ................................................... 263
                                                                  .         DTC Confirmation Procedure .............................. 338      .
 Diagnostic Procedure .......................................... 266
                                                                  .         Wiring Diagram .................................................... 339
                                                                                                                                               .
 Removal and Installation ..................................... 272
                                                                  .         Diagnostic Procedure .......................................... 340.
DTC P0137, P0157 HO2S2 ................................... 273    .         Component Inspection ......................................... 342 .
 Component Description ....................................... 273.         Removal and Installation ..................................... 342 .
 CONSULT-II Reference Value in Data Monitor Mode                          DTC P0222, P0223 TP SENSOR ........................... 343           .
                                                                  . 273     Component Description ....................................... 343  .
 On Board Diagnosis Logic .................................. 273  .         CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 274    .                                                                            . 343
 Overall Function Check ....................................... 274
                                                                  .         On Board Diagnosis Logic ................................... 343   .
 Wiring Diagram ................................................... 276
                                                                  .         DTC Confirmation Procedure .............................. 344      .
 Diagnostic Procedure .......................................... 279
                                                                  .         Wiring Diagram .................................................... 345
                                                                                                                                               .
 Component Inspection ........................................ 282.         Diagnostic Procedure .......................................... 346.
 Removal and Installation ..................................... 283
                                                                  .         Component Inspection ......................................... 349 .
DTC P0138, P0158 HO2S2 ................................... 284    .         Removal and Installation ..................................... 349 .
 Component Description ....................................... 284.       DTC P0300 - P0306 MULTIPLE CYLINDER MIS-
 CONSULT-II Reference Value in Data Monitor Mode                          FIRE, NO. 1 - 6 CYLINDER MISFIRE .................... 350            .

Revision: 2005 September                                             EC-3                                                         2006 Murano
  On Board Diagnosis Logic ................................... 350         .       UME CONTROL SOLENOID VALVE ..................... 409                      .
  DTC Confirmation Procedure .............................. 350            .        Description ........................................................... 409
                                                                                                                                                             .
  Diagnostic Procedure .......................................... 351      .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0327, P0328 KS ........................................... 359        .                                                                                 .409
  Component Description ....................................... 359        .        On Board Diagnosis Logic ................................... 410         .
  On Board Diagnosis Logic ................................... 359         .        DTC Confirmation Procedure ............................... 410           .
  DTC Confirmation Procedure .............................. 359            .        Wiring Diagram .................................................... 411  .
  Wiring Diagram .................................................... 360  .        Diagnostic Procedure ........................................... 413     .
  Diagnostic Procedure .......................................... 361      .        Component Inspection ......................................... 415       .
  Component Inspection ......................................... 363       .        Removal and Installation ...................................... 415      .
  Removal and Installation ..................................... 363       .       DTC P0447 EVAP CANISTER VENT CONTROL
DTC P0335 CKP SENSOR (POS) ......................... 364                   .       VALVE ..................................................................... 416
                                                                                                                                                             .
  Component Description ....................................... 364        .        Component Description ....................................... 416        .
  CONSULT-II Reference Value in Data Monitor Mode                                   CONSULT-II Reference Value in Data Monitor Mode
                                                                           . 364                                                                             .416
  On Board Diagnosis Logic ................................... 364         .        On Board Diagnosis Logic ................................... 416         .
  DTC Confirmation Procedure .............................. 364            .        DTC Confirmation Procedure ............................... 417           .
  Wiring Diagram .................................................... 366  .        Wiring Diagram .................................................... 418  .
  Diagnostic Procedure .......................................... 367      .        Diagnostic Procedure ........................................... 419     .
  Component Inspection ......................................... 370       .        Component Inspection ......................................... 421       .
  Removal and Installation ..................................... 370       .       DTC P0448 EVAP CANISTER VENT CONTROL
DTC P0340, P0345 CMP SENSOR (PHASE) ........ 371                           .       VALVE ..................................................................... 423
                                                                                                                                                             .
  Component Description ....................................... 371        .        Component Description ....................................... 423        .
  CONSULT-II Reference Value in Data Monitor Mode                                   CONSULT-II Reference Value in Data Monitor Mode
                                                                           . 371                                                                             .423
  On Board Diagnosis Logic ................................... 371         .        On Board Diagnosis Logic ................................... 423         .
  DTC Confirmation Procedure .............................. 371            .        DTC Confirmation Procedure ............................... 424           .
  Wiring Diagram .................................................... 373  .        Wiring Diagram .................................................... 425  .
  Diagnostic Procedure .......................................... 376      .        Diagnostic Procedure ........................................... 426     .
  Component Inspection ......................................... 380       .        Component Inspection ......................................... 428       .
  Removal and Installation ..................................... 380       .       DTC P0451 EVAP CONTROL SYSTEM PRESSURE
DTC P0420, P0430 THREE WAY CATALYST FUNC-                                          SENSOR ................................................................. 430
                                                                                                                                                             .
TION ....................................................................... 381
                                                                           .        Component Description ....................................... 430        .
  On Board Diagnosis Logic ................................... 381         .        CONSULT-II Reference Value in Data Monitor Mode
  DTC Confirmation Procedure .............................. 381            .                                                                                 .430
  Overall Function Check ....................................... 382       .        On Board Diagnosis Logic ................................... 430         .
  Diagnostic Procedure .......................................... 383      .        DTC Confirmation Procedure ............................... 431           .
DTC P0441 EVAP CONTROL SYSTEM ................ 387                         .        Diagnostic Procedure ........................................... 431     .
  System Description .............................................. 387    .        Component Inspection ......................................... 432       .
  On Board Diagnosis Logic ................................... 387         .       DTC P0452 EVAP CONTROL SYSTEM PRESSURE
  DTC Confirmation Procedure .............................. 387            .       SENSOR ................................................................. 433
                                                                                                                                                             .
  Overall Function Check ....................................... 388       .        Component Description ....................................... 433        .
  Diagnostic Procedure .......................................... 389      .        CONSULT-II Reference Value in Data Monitor Mode
DTC P0442 EVAP CONTROL SYSTEM ................ 392                         .                                                                                 .433
  On Board Diagnosis Logic ................................... 392         .        On Board Diagnosis Logic ................................... 433         .
  DTC Confirmation Procedure .............................. 393            .        DTC Confirmation Procedure ............................... 434           .
  Diagnostic Procedure .......................................... 395      .        Wiring Diagram .................................................... 435  .
DTC P0443 EVAP CANISTER PURGE VOLUME                                                Diagnostic Procedure ........................................... 436     .
CONTROL SOLENOID VALVE .............................. 401                  .        Component Inspection ......................................... 438       .
  Description ........................................................... 401
                                                                           .       DTC P0453 EVAP CONTROL SYSTEM PRESSURE
  CONSULT-II Reference Value in Data Monitor Mode                                  SENSOR ................................................................. 439
                                                                                                                                                             .
                                                                           . 401    Component Description ....................................... 439        .
  On Board Diagnosis Logic ................................... 402         .        CONSULT-II Reference Value in Data Monitor Mode
  DTC Confirmation Procedure .............................. 402            .                                                                                 .439
  Wiring Diagram .................................................... 403  .        On Board Diagnosis Logic ................................... 439         .
  Diagnostic Procedure .......................................... 405      .        DTC Confirmation Procedure ............................... 440           .
  Component Inspection ......................................... 408       .        Wiring Diagram .................................................... 441  .
  Removal and Installation ..................................... 408       .        Diagnostic Procedure ........................................... 442     .
DTC P0444, P0445 EVAP CANISTER PURGE VOL-                                           Component Inspection ......................................... 446       .

Revision: 2005 September                                                      EC-4                                                             2006 Murano
DTC P0455 EVAP CONTROL SYSTEM ............... 447                     .       DTC P0605 ECM .................................................... 486 .
 On Board Diagnosis Logic .................................. 447      .        Component Description ....................................... 486     .       A
 DTC Confirmation Procedure .............................. 448        .        On Board Diagnosis Logic ................................... 486      .
 Diagnostic Procedure .......................................... 450  .        DTC Confirmation Procedure .............................. 486         .
DTC P0456 EVAP CONTROL SYSTEM ............... 456                     .        Diagnostic Procedure .......................................... 487   .       EC
 On Board Diagnosis Logic .................................. 456      .       DTC P0643 SENSOR POWER SUPPLY ............... 489                      .
 DTC Confirmation Procedure .............................. 457        .        On Board Diagnosis Logic ................................... 489      .
 Overall Function Check ....................................... 458   .        DTC Confirmation Procedure .............................. 489         .
 Diagnostic Procedure .......................................... 459  .        Wiring Diagram .................................................... 490
                                                                                                                                                     .       C
DTC P0460 FUEL LEVEL SENSOR ..................... 465                 .        Diagnostic Procedure .......................................... 492   .
 Component Description ....................................... 465    .       DTC P0850 PNP SWITCH ..................................... 494         .
 On Board Diagnosis Logic .................................. 465      .        Component Description ....................................... 494     .       D
 DTC Confirmation Procedure .............................. 465        .        CONSULT-II Reference Value in Data Monitor Mode
 Diagnostic Procedure .......................................... 466  .                                                                              . 494
 Removal and Installation ..................................... 466   .        On Board Diagnosis Logic ................................... 494      .       E
DTC P0461 FUEL LEVEL SENSOR ..................... 467                 .        DTC Confirmation Procedure .............................. 494         .
 Component Description ....................................... 467    .        Overall Function Check ....................................... 495    .
 On Board Diagnosis Logic .................................. 467      .        Wiring Diagram .................................................... 496
                                                                                                                                                     .
 Overall Function Check ....................................... 467   .        Diagnostic Procedure .......................................... 497   .       F
 Diagnostic Procedure .......................................... 468  .       DTC P1148, P1168 CLOSED LOOP CONTROL ... 499                           .
 Removal and Installation ..................................... 468   .        On Board Diagnosis Logic ................................... 499      .
DTC P0462, P0463 FUEL LEVEL SENSOR ......... 469                      .       DTC P1211 TCS CONTROL UNIT ......................... 500               .       G
 Component Description ....................................... 469    .        Description ........................................................... 500
                                                                                                                                                     .
 On Board Diagnosis Logic .................................. 469      .        On Board Diagnosis Logic ................................... 500      .
 DTC Confirmation Procedure .............................. 469        .        DTC Confirmation Procedure .............................. 500         .       H
 Diagnostic Procedure .......................................... 470  .        Diagnostic Procedure .......................................... 500   .
 Removal and Installation ..................................... 470   .       DTC P1212 TCS COMMUNICATION LINE ........... 501                       .
DTC P0500 VSS .................................................... 471.        Description ........................................................... 501
                                                                                                                                                     .
                                                                                                                                                              I
 Description .......................................................... 471
                                                                      .        On Board Diagnosis Logic ................................... 501      .
 On Board Diagnosis Logic .................................. 471      .        DTC Confirmation Procedure .............................. 501         .
 DTC Confirmation Procedure .............................. 471        .        Diagnostic Procedure .......................................... 501   .
 Overall Function Check ....................................... 472   .       DTC P1217 ENGINE OVER TEMPERATURE ....... 502                          .       J
 Diagnostic Procedure .......................................... 472  .        Description ........................................................... 502
                                                                                                                                                     .
DTC P0506 ISC SYSTEM ...................................... 473       .        CONSULT-II Reference Value in Data Monitor Mode
 Description .......................................................... 473
                                                                      .                                                                              . 503   K
 On Board Diagnosis Logic .................................. 473      .        On Board Diagnosis Logic ................................... 504      .
 DTC Confirmation Procedure .............................. 473        .        Overall Function Check ....................................... 504    .
 Diagnostic Procedure .......................................... 474  .        Wiring Diagram .................................................... 506
                                                                                                                                                     .       L
DTC P0507 ISC SYSTEM ...................................... 475       .        Diagnostic Procedure .......................................... 508   .
 Description .......................................................... 475
                                                                      .        Main 12 Causes of Overheating .......................... 512          .
 On Board Diagnosis Logic .................................. 475      .        Component Inspection ......................................... 513    .
 DTC Confirmation Procedure .............................. 475        .       DTC P1225 TP SENSOR ....................................... 514        .       M
 Diagnostic Procedure .......................................... 476  .        Component Description ....................................... 514     .
DTC P0550 PSP SENSOR .................................... 477         .        On Board Diagnosis Logic ................................... 514      .
 Component Description ....................................... 477    .        DTC Confirmation Procedure .............................. 514         .
 CONSULT-II Reference Value in Data Monitor Mode                               Diagnostic Procedure .......................................... 515   .
                                                                      . 477    Removal and Installation ..................................... 515    .
 On Board Diagnosis Logic .................................. 477      .       DTC P1226 TP SENSOR ....................................... 516        .
 DTC Confirmation Procedure .............................. 477        .        Component Description ....................................... 516     .
 Wiring Diagram ................................................... 478
                                                                      .        On Board Diagnosis Logic ................................... 516      .
 Diagnostic Procedure .......................................... 479  .        DTC Confirmation Procedure .............................. 516         .
 Component Inspection ........................................ 481    .        Diagnostic Procedure .......................................... 517   .
 Removal and Installation ..................................... 481   .        Removal and Installation ..................................... 517    .
DTC P0603 ECM POWER SUPPLY ...................... 482                 .       DTC P1421 COLD START CONTROL .................. 518                    .
 Component Description ....................................... 482    .        Description ........................................................... 518
                                                                                                                                                     .
 On Board Diagnosis Logic .................................. 482      .        On Board Diagnosis Logic ................................... 518      .
 DTC Confirmation Procedure .............................. 482        .        DTC Confirmation Procedure .............................. 518         .
 Wiring Diagram ................................................... 483
                                                                      .        Diagnostic Procedure .......................................... 518   .
 Diagnostic Procedure .......................................... 484  .       DTC P1564 ASCD STEERING SWITCH ............... 520                     .

Revision: 2005 September                                                 EC-5                                                           2006 Murano
 Component Description ....................................... 520     .       RELAY .................................................................... 552
                                                                                                                                                        .
 CONSULT-II Reference Value in Data Monitor Mode                                Component Description ....................................... 552       .
                                                                       . 520    CONSULT-II Reference Value in Data Monitor Mode
 On Board Diagnosis Logic ................................... 520      .                                                                                .552
 DTC Confirmation Procedure .............................. 521         .        On Board Diagnosis Logic ................................... 552        .
 Wiring Diagram .................................................... 522
                                                                       .        DTC Confirmation Procedure ............................... 552          .
 Diagnostic Procedure .......................................... 523   .        Wiring Diagram .................................................... 554 .
 Component Inspection ......................................... 526    .        Diagnostic Procedure ........................................... 555    .
DTC P1572 ASCD BRAKE SWITCH ..................... 527                  .       DTC P2101 ELECTRIC THROTTLE CONTROL
 Component Description ....................................... 527     .       FUNCTION ............................................................. 558
                                                                                                                                                        .
 CONSULT-II Reference Value in Data Monitor Mode                                Description ........................................................... 558
                                                                                                                                                        .
                                                                       . 527    On Board Diagnosis Logic ................................... 558        .
 On Board Diagnosis Logic ................................... 527      .        DTC Confirmation Procedure ............................... 558          .
 DTC Confirmation Procedure .............................. 528         .        Wiring Diagram .................................................... 559 .
 Wiring Diagram .................................................... 529
                                                                       .        Diagnostic Procedure ........................................... 560    .
 Diagnostic Procedure .......................................... 530   .        Component Inspection ......................................... 563      .
 Component Inspection ......................................... 534    .        Removal and Installation ...................................... 563     .
DTC P1574 ASCD VEHICLE SPEED SENSOR .... 535                           .       DTC P2118 THROTTLE CONTROL MOTOR ........ 564                            .
 Component Description ....................................... 535     .        Component Description ....................................... 564       .
 On Board Diagnosis Logic ................................... 535      .        On Board Diagnosis Logic ................................... 564        .
 DTC Confirmation Procedure .............................. 535         .        DTC Confirmation Procedure ............................... 564          .
 Diagnostic Procedure .......................................... 536   .        Wiring Diagram .................................................... 565 .
DTC P1700 CVT CONTROL SYSTEM .................. 537                    .        Diagnostic Procedure ........................................... 566    .
 Description ........................................................... 537
                                                                       .        Component Inspection ......................................... 567      .
DTC P1715 INPUT SPEED SENSOR (PRIMARY                                           Removal and Installation ...................................... 568     .
SPEED SENSOR) .................................................. 538   .       DTC P2119 ELECTRIC THROTTLE CONTROL
 Description ........................................................... 538
                                                                       .       ACTUATOR ............................................................ 569.
 CONSULT-II Reference Value in Data Monitor Mode                                Component Description ....................................... 569       .
                                                                       . 538    On Board Diagnosis Logic ................................... 569        .
 On Board Diagnosis Logic ................................... 538      .        DTC Confirmation Procedure ............................... 569          .
 DTC Confirmation Procedure .............................. 538         .        Diagnostic Procedure ........................................... 570    .
 Diagnostic Procedure .......................................... 539   .       DTC P2122, P2123 APP SENSOR ........................ 571                 .
DTC P1720 VSS ..................................................... 540.        Component Description ....................................... 571       .
 Description ........................................................... 540
                                                                       .        CONSULT-II Reference Value in Data Monitor Mode
 CONSULT-II Reference Value in Data Monitor Mode                                                                                                        .571
                                                                       . 540    On Board Diagnosis Logic ................................... 571        .
 On Board Diagnosis Logic ................................... 540      .        DTC Confirmation Procedure ............................... 572          .
 DTC Confirmation Procedure .............................. 540         .        Wiring Diagram .................................................... 573 .
 Diagnostic Procedure .......................................... 541   .        Diagnostic Procedure ........................................... 574    .
DTC P1800 VIAS CONTROL SOLENOID VALVE . 542                                     Component Inspection ......................................... 576      .
 Component Description ....................................... 542     .        Removal and Installation ...................................... 576     .
 CONSULT-II Reference Value in Data Monitor Mode                               DTC P2127, P2128 APP SENSOR ........................ 577                 .
                                                                       . 542    Component Description ....................................... 577       .
 On Board Diagnosis Logic ................................... 542      .        CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 542         .                                                                                .577
 Wiring Diagram .................................................... 543
                                                                       .        On Board Diagnosis Logic ................................... 577        .
 Diagnostic Procedure .......................................... 544   .        DTC Confirmation Procedure ............................... 578          .
 Component Inspection ......................................... 545    .        Wiring Diagram .................................................... 579 .
 Removal and Installation ..................................... 546    .        Diagnostic Procedure ........................................... 580    .
DTC P1805 BRAKE SWITCH ................................ 547            .        Component Inspection ......................................... 583      .
 Description ........................................................... 547
                                                                       .        Removal and Installation ...................................... 583     .
 CONSULT-II Reference Value in Data Monitor Mode                               DTC P2135 TP SENSOR ....................................... 584          .
                                                                       . 547    Component Description ....................................... 584       .
 On Board Diagnosis Logic ................................... 547      .        CONSULT-II Reference Value in Data Monitor Mode
 DTC Confirmation Procedure .............................. 547         .                                                                                .584
 Wiring Diagram .................................................... 548
                                                                       .        On Board Diagnosis Logic ................................... 584        .
 Diagnostic Procedure .......................................... 549   .        DTC Confirmation Procedure ............................... 585          .
 Component Inspection ......................................... 551    .        Wiring Diagram .................................................... 586 .
DTC P2100, P2103 THROTTLE CONTROL MOTOR                                         Diagnostic Procedure ........................................... 587    .

Revision: 2005 September                                                  EC-6                                                             2006 Murano
 Component Inspection ........................................ 590    .                                                                                  . 627
 Removal and Installation ..................................... 590   .         Wiring Diagram .................................................... 628  .       A
DTC P2138 APP SENSOR .................................... 591         .         Diagnostic Procedure .......................................... 629      .
 Component Description ....................................... 591    .         Component Inspection ......................................... 633       .
 CONSULT-II Reference Value in Data Monitor Mode                                Removal and Installation ..................................... 633       .       EC
                                                                      . 591   FUEL PUMP ........................................................... 634  .
 On Board Diagnosis Logic .................................. 591      .         Description .........................................................



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