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LAN


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K ELECTRICAL

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                                                                                    SECTION                     LAN    LAN SYSTEM
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                                                                                                                                                                     E
                                                                  CONTENTS
                                   CAN                                             IPDM E/R Ignition Relay Circuit Check ................. 49               .        F
                                                                                   Component Inspection ........................................... 49      .
PRECAUTIONS ......................................................... 6  .           ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
 Precautions for Supplemental Restraint System                                       TION ................................................................... 49
                                                                                                                                                            .        G
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                          CAN SYSTEM (TYPE 2) .......................................... 50         .
 SIONER" ................................................................. 6
                                                                         .         System Description ................................................ 50   .
 Precautions When Using CONSULT-II .................... 6                .         Component Parts and Harness Connector Location 50                        ...
   CHECK POINTS FOR USING CONSULT-II ........ 6                          .                                                                                           H
                                                                                   Schematic .............................................................. 51
                                                                                                                                                            .
 Precautions For Trouble Diagnosis ......................... 6           .         Wiring Diagram - CAN - ......................................... 52      .
   CAN SYSTEM ...................................................... 6   .         Work Flow .............................................................. 55
                                                                                                                                                            .
 Precautions For Harness Repair ............................. 7          .           CHECK SHEET .................................................. 56      .         I
   CAN SYSTEM ...................................................... 7   .           CHECK SHEET RESULTS (EXAMPLE) ............ 58                          .
CAN COMMUNICATION ........................................... 8          .         Circuit Check Between TCM and Driver Seat Con-
 System Description ................................................. 8  .         trol Unit .................................................................. 70
                                                                                                                                                            .         J
 CAN Communication Unit ....................................... 8        .         Circuit Check Between Driver Seat Control Unit and
   TYPE 1/TYPE 2/TYPE 3 ...................................... 8         .         Data Link Connector .............................................. 71    .
   TYPE 4/TYPE 5/TYPE 6 .....................................11          .         Circuit Check Between Data Link Connector and
   TYPE 7/TYPE 8/TYPE 9 .................................... 14          .                                                                                           LAN
                                                                                   IPDM E/R ............................................................... 72
                                                                                                                                                            .
   TYPE 10/TYPE 11/TYPE 12 .............................. 17             .         ECM Circuit Check ................................................ 73    .
   TYPE 13/TYPE 14/TYPE 15 .............................. 21             .         TCM Circuit Check ................................................ 73    .
CAN SYSTEM (TYPE 1) .......................................... 24        .         Driver Seat Control Unit Circuit Check .................. 74             .         L
 System Description ............................................... 24   .         Combination Meter Circuit Check .......................... 74            .
 Component Parts and Harness Connector Location 24                       ...       BCM Circuit Check ................................................ 75    .
 Schematic ............................................................. 25
                                                                         .         Data Link Connector Circuit Check ....................... 75             .        M
 Wiring Diagram - CAN - ........................................ 26      .         ABS Actuator and Electric Unit (Control Unit) Circuit
 Work Flow ............................................................. 29
                                                                         .         Check .................................................................... 76
                                                                                                                                                            .
   CHECK SHEET .................................................. 30     .         IPDM E/R Circuit Check ........................................ 76       .
   CHECK SHEET RESULTS (EXAMPLE) ............ 32                         .         CAN Communication Circuit Check ....................... 77               .
 Circuit Check Between TCM and Data Link Con-                                      IPDM E/R Ignition Relay Circuit Check ................. 77               .
 nector .................................................................... 42
                                                                         .         Component Inspection ........................................... 78      .
 Circuit Check Between Data Link Connector and                                       ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
 IPDM E/R .............................................................. 43
                                                                         .           TION ................................................................... 78
                                                                                                                                                            .
 ECM Circuit Check ................................................ 44   .        CAN SYSTEM (TYPE 3) .......................................... 79         .
 TCM Circuit Check ................................................ 45   .         System Description ................................................ 79   .
 Combination Meter Circuit Check ......................... 45            .         Component Parts and Harness Connector Location 79                        ...
 BCM Circuit Check ................................................ 46   .         Schematic .............................................................. 80
                                                                                                                                                            .
 Data Link Connector Circuit Check ....................... 46            .         Wiring Diagram - CAN - ......................................... 81      .
 ABS Actuator and Electric Unit (Control Unit) Circuit                             Work Flow .............................................................. 84
                                                                                                                                                            .
 Check .................................................................... 47
                                                                         .           CHECK SHEET .................................................. 86      .
 IPDM E/R Circuit Check ........................................ 47      .           CHECK SHEET RESULTS (EXAMPLE) ............ 88                          .
 CAN Communication Circuit Check ...................... 48               .

Revision: January 2005                                                     LAN-1                                                                   2004 Titan
 Circuit Check Between TCM and Driver Seat Con-                                    Data Link Connector ............................................ 162      .
 trol Unit ................................................................ 102
                                                                          .        Circuit Check Between Data Link Connector and
 Circuit Check Between Driver Seat Control Unit and                                IPDM E/R ............................................................. 163.
 Data Link Connector ............................................ 103     .        ECM Circuit Check ............................................... 164     .
 Circuit Check Between Data Link Connector and                                     TCM Circuit Check ............................................... 164     .
 IPDM E/R ............................................................. 104
                                                                          .        Driver Seat Control Unit Circuit Check ................. 165              .
 ECM Circuit Check .............................................. 105     .        Combination Meter Circuit Check ........................ 165              .
 TCM Circuit Check .............................................. 105     .        BCM Circuit Check ............................................... 166     .
 Driver Seat Control Unit Circuit Check ................ 106              .        Data Link Connector Circuit Check ...................... 166              .
 Combination Meter Circuit Check ........................ 106             .        Steering Angle Sensor Circuit Check ................... 167               .
 Display Control Unit Circuit Check ....................... 107           .        ABS Actuator and Electric Unit (Control Unit) Circuit
 BCM Circuit Check .............................................. 107     .        Check ................................................................... 167
                                                                                                                                                             .
 Data Link Connector Circuit Check ...................... 108             .        IPDM E/R Circuit Check ....................................... 168        .
 Front Air Control Circuit Check ............................ 108         .        CAN Communication Circuit Check ..................... 168                 .
 ABS Actuator and Electric Unit (Control Unit) Circuit                             IPDM E/R Ignition Relay Circuit Check ................ 169                .
 Check .................................................................. 109
                                                                          .        Component Inspection ......................................... 169        .
 IPDM E/R Circuit Check ...................................... 109        .          ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
 CAN Communication Circuit Check ..................... 110                .          TION ................................................................. 169
                                                                                                                                                             .
 IPDM E/R Ignition Relay Circuit Check ................ 110               .       CAN SYSTEM (TYPE 6) ......................................... 170          .
 Component Inspection ..........................................111       .        System Description .............................................. 170     .
   ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-                                           Component Parts and Harness Connector Location                            .170
   TION ..................................................................111
                                                                          .        Schematic ............................................................ 171.
CAN SYSTEM (TYPE 4) ........................................ 112          .        Wiring Diagram - CAN - ....................................... 172        .
 System Description .............................................. 112    .        Work Flow ............................................................ 175.
 Component Parts and Harness Connector Location 112                       .          CHECK SHEET ................................................ 177        .
 Schematic ............................................................ 113
                                                                          .          CHECK SHEET RESULTS (EXAMPLE) ........... 179                           .
 Wiring Diagram - CAN - ....................................... 114       .        Circuit Check Between TCM and Driver Seat Con-
 Work Flow ............................................................ 117
                                                                          .        trol Unit ................................................................. 194
                                                                                                                                                             .
   CHECK SHEET ................................................ 118       .        Circuit Check Between Driver Seat Control Unit and
   CHECK SHEET RESULTS (EXAMPLE) .......... 120                           .        Data Link Connector ............................................ 195      .
 Circuit Check Between TCM and Data Link Con-                                      Circuit Check Between Data Link Connector and
 nector ................................................................... 131
                                                                          .        IPDM E/R ............................................................. 196.
 Circuit Check Between Data Link Connector and                                     ECM Circuit Check ............................................... 197     .
 IPDM E/R ............................................................. 132
                                                                          .        TCM Circuit Check ............................................... 197     .
 ECM Circuit Check .............................................. 133     .        Driver Seat Control Unit Circuit Check ................. 198              .
 TCM Circuit Check .............................................. 134     .        Combination Meter Circuit Check ........................ 198              .
 Combination Meter Circuit Check ........................ 134             .        Display Control Unit Circuit Check ....................... 199            .
 BCM Circuit Check .............................................. 135     .        BCM Circuit Check ............................................... 199     .
 Data Link Connector Circuit Check ...................... 135             .        Data Link Connector Circuit Check ...................... 200              .
 Steering Angle Sensor Circuit Check .................. 136               .        Steering Angle Sensor Circuit Check ................... 200               .
 ABS Actuator and Electric Unit (Control Unit) Circuit                             Front Air Control Circuit Check ............................ 201          .
 Check .................................................................. 136
                                                                          .        ABS Actuator and Electric Unit (Control Unit) Circuit
 IPDM E/R Circuit Check ...................................... 137        .        Check ................................................................... 201
                                                                                                                                                             .
 CAN Communication Circuit Check ..................... 138                .        IPDM E/R Circuit Check ....................................... 202        .
 IPDM E/R Ignition Relay Circuit Check ................ 138               .        CAN Communication Circuit Check ..................... 202                 .
 Component Inspection ......................................... 139       .        IPDM E/R Ignition Relay Circuit Check ................ 203                .
   ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-                                           Component Inspection ......................................... 203        .
   TION ................................................................. 139
                                                                          .          ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
CAN SYSTEM (TYPE 5) ........................................ 140          .          TION ................................................................. 203
                                                                                                                                                             .
 System Description .............................................. 140    .       CAN SYSTEM (TYPE 7) ......................................... 204          .
 Component Parts and Harness Connector Location 140                       .        System Description .............................................. 204     .
 Schematic ............................................................ 141
                                                                          .        Component Parts and Harness Connector Location                            .204
 Wiring Diagram - CAN - ....................................... 142       .        Schematic ............................................................ 205.
 Work Flow ............................................................ 145
                                                                          .        Wiring Diagram - CAN - ....................................... 206        .
   CHECK SHEET ................................................ 146       .        Work Flow ............................................................ 209.
   CHECK SHEET RESULTS (EXAMPLE) .......... 148                           .          CHECK SHEET ................................................ 210        .
 Circuit Check Between TCM and Driver Seat Con-                                      CHECK SHEET RESULTS (EXAMPLE) ........... 212                           .
 trol Unit ................................................................ 161
                                                                          .        Circuit Check Between TCM and Data Link Con-
 Circuit Check Between Driver Seat Control Unit and                                nector ................................................................... 223
                                                                                                                                                             .

Revision: January 2005                                                     LAN-2                                                                   2004 Titan
 Circuit Check Between Data Link Connector and                                     ECM Circuit Check .............................................. 289   .
 IPDM E/R ............................................................ 224.        TCM Circuit Check .............................................. 289   .       A
 ECM Circuit Check .............................................. 225     .        Driver Seat Control Unit Circuit Check ................ 290            .
 TCM Circuit Check .............................................. 226     .        Combination Meter Circuit Check ........................ 290           .
 Combination Meter Circuit Check ....................... 226              .        Display Control Unit Circuit Check ...................... 291          .       B
 BCM Circuit Check .............................................. 227     .        BCM Circuit Check .............................................. 291   .
 Data Link Connector Circuit Check ..................... 227              .        Data Link Connector Circuit Check ..................... 292            .
 Transfer Control Unit Circuit Check ..................... 228            .        Front Air Control Circuit Check ............................ 292       .
 ABS Actuator and Electric Unit (Control Unit) Circuit                             Transfer Control Unit Circuit Check ..................... 293          .       C
 Check .................................................................. 228
                                                                          .        ABS Actuator and Electric Unit (Control Unit) Circuit
 IPDM E/R Circuit Check ...................................... 229        .        Check .................................................................. 293
                                                                                                                                                          .
 CAN Communication Circuit Check .................... 230                 .        IPDM E/R Circuit Check ...................................... 294      .       D
 IPDM E/R Ignition Relay Circuit Check ............... 230                .        CAN Communication Circuit Check ..................... 294              .
 Component Inspection ........................................ 231        .        IPDM E/R Ignition Relay Circuit Check ............... 295              .
   ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-                                           Component Inspection ......................................... 295     .       E
   TION ................................................................. 231
                                                                          .          ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
CAN SYSTEM (TYPE 8) ........................................ 232          .          TION ................................................................. 295
                                                                                                                                                          .
 System Description ............................................. 232     .       CAN SYSTEM (TYPE 10) ...................................... 296         .
 Component Parts and Harness Connector Location 232                       .        System Description .............................................. 296  .       F
 Schematic ........................................................... 233.        Component Parts and Harness Connector Location 296                     .
 Wiring Diagram - CAN - ...................................... 234        .        Schematic ............................................................ 297
                                                                                                                                                          .
 Work Flow ........................................................... 237.        Wiring Diagram - CAN - ....................................... 298     .       G
   CHECK SHEET ................................................ 238       .        Work Flow ............................................................ 301
                                                                                                                                                          .
   CHECK SHEET RESULTS (EXAMPLE) .......... 240                           .          CHECK SHEET ................................................ 302     .
 Circuit Check Between TCM and Driver Seat Con-                                      CHECK SHEET RESULTS (EXAMPLE) .......... 304                         .       H
 trol Unit ................................................................ 253
                                                                          .        Circuit Check Between TCM and Differential Lock
 Circuit Check Between Driver Seat Control Unit and                                Control Unit .......................................................... 317
                                                                                                                                                          .
 Data Link Connector ........................................... 254      .        Circuit Check Between Differential Lock Control
                                                                                                                                                                   I
 Circuit Check Between Data Link Connector and                                     Unit and Data Link Connector ............................. 318         .
 IPDM E/R ............................................................ 255.        Circuit Check Between Data Link Connector and
 ECM Circuit Check .............................................. 256     .        IPDM E/R ............................................................. 319
                                                                                                                                                          .
 TCM Circuit Check .............................................. 256     .        ECM Circuit Check .............................................. 320   .        J
 Driver Seat Control Unit Circuit Check ................ 257              .        TCM Circuit Check .............................................. 320   .
 Combination Meter Circuit Check ....................... 257              .        Differential Lock Control Unit Circuit Check ........ 321              .
 BCM Circuit Check .............................................. 258     .        Combination Meter Circuit Check ........................ 321           .       LAN
 Data Link Connector Circuit Check ..................... 258              .        BCM Circuit Check .............................................. 322   .
 Transfer Control Unit Circuit Check ..................... 259            .        Data Link Connector Circuit Check ..................... 322            .
 ABS Actuator and Electric Unit (Control Unit) Circuit                             Transfer Control Unit Circuit Check ..................... 323          .
                                                                                                                                                                   L
 Check .................................................................. 259
                                                                          .        ABS Actuator and Electric Unit (Control Unit) Circuit
 IPDM E/R Circuit Check ...................................... 260        .        Check .................................................................. 323
                                                                                                                                                          .
 CAN Communication Circuit Check .................... 260                 .        IPDM E/R Circuit Check ...................................... 324      .
 IPDM E/R Ignition Relay Circuit Check ............... 261                .        CAN Communication Circuit Check ..................... 324              .       M
 Component Inspection ........................................ 261        .        IPDM E/R Ignition Relay Circuit Check ............... 325              .
   ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-                                           Component Inspection ......................................... 325     .
   TION ................................................................. 261
                                                                          .          ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
CAN SYSTEM (TYPE 9) ........................................ 262          .          TION ................................................................. 325
                                                                                                                                                          .
 System Description ............................................. 262     .       CAN SYSTEM (TYPE 11) ...................................... 326         .
 Component Parts and Harness Connector Location 262                       .        System Description .............................................. 326  .
 Schematic ........................................................... 263.        Component Parts and Harness Connector Location 326                     .
 Wiring Diagram - CAN - ...................................... 264        .        Schematic ............................................................ 327
                                                                                                                                                          .
 Work Flow ........................................................... 267.        Wiring Diagram - CAN - ....................................... 328     .
   CHECK SHEET ................................................ 269       .        Work Flow ............................................................ 331
                                                                                                                                                          .
   CHECK SHEET RESULTS (EXAMPLE) .......... 271                           .          CHECK SHEET ................................................ 332     .
 Circuit Check Between TCM and Driver Seat Con-                                      CHECK SHEET RESULTS (EXAMPLE) .......... 334                         .
 trol Unit ................................................................ 286
                                                                          .        Circuit Check Between TCM and Differential Lock
 Circuit Check Between Driver Seat Control Unit and                                Control Unit .......................................................... 349
                                                                                                                                                          .
 Data Link Connector ........................................... 287      .        Circuit Check Between Differential Lock Control
 Circuit Check Between Data Link Connector and                                     Unit and Driver Seat Control Unit ........................ 350         .
 IPDM E/R ............................................................ 288.        Circuit Check Between Driver Seat Control Unit and

Revision: January 2005                                                     LAN-3                                                                2004 Titan
 Data Link Connector ............................................ 351   .          CHECK SHEET ................................................ 404        .
 Circuit Check Between Data Link Connector and                                     CHECK SHEET RESULTS (EXAMPLE) ........... 406                           .
 IPDM E/R ............................................................. 351
                                                                        .        Circuit Check Between TCM and Data Link Con-
 ECM Circuit Check .............................................. 352   .        nector ................................................................... 418
                                                                                                                                                           .
 TCM Circuit Check .............................................. 353   .        Circuit Check Between Data Link Connector and
 Differential Lock Control Unit Circuit Check ......... 353             .        IPDM E/R ............................................................. 419.
 Driver Seat Control Unit Circuit Check ................ 354            .        ECM Circuit Check ............................................... 420     .
 Combination Meter Circuit Check ........................ 354           .        TCM Circuit Check ............................................... 421     .
 BCM Circuit Check .............................................. 355   .        Combination Meter Circuit Check ........................ 421              .
 Data Link Connector Circuit Check ...................... 355           .        BCM Circuit Check ............................................... 422     .
 Transfer Control Unit Circuit Check ..................... 356          .        Data Link Connector Circuit Check ...................... 422              .
 ABS Actuator and Electric Unit (Control Unit) Circuit                           Steering Angle Sensor Circuit Check ................... 423               .
 Check .................................................................. 356
                                                                        .        Transfer Control Unit Circuit Check ..................... 423             .
 IPDM E/R Circuit Check ...................................... 357      .        ABS Actuator and Electric Unit (Control Unit) Circuit
 CAN Communication Circuit Check ..................... 358              .        Check ................................................................... 424
                                                                                                                                                           .
 IPDM E/R Ignition Relay Circuit Check ................ 358             .        IPDM E/R Circuit Check ....................................... 424        .
 Component Inspection ......................................... 359     .        CAN Communication Circuit Check ..................... 425                 .
   ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-                                         IPDM E/R Ignition Relay Circuit Check ................ 426                .
   TION ................................................................. 359
                                                                        .        Component Inspection ......................................... 426        .
CAN SYSTEM (TYPE 12) ...................................... 360         .          ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
 System Description .............................................. 360  .          TION ................................................................. 426
                                                                                                                                                           .
 Component Parts and Harness Connector Location 360                     .       CAN SYSTEM (TYPE 14) ....................................... 427           .
 Schematic ............................................................ 361
                                                                        .        System Description .............................................. 427     .
 Wiring Diagram - CAN - ....................................... 362     .        Component Parts and Harness Connector Location                            .427
 Work Flow ............................................................ 365
                                                                        .        Schematic ............................................................ 428.
   CHECK SHEET ................................................ 367     .        Wiring Diagram - CAN - ....................................... 429        .
   CHECK SHEET RESULTS (EXAMPLE) .......... 369                         .        Work Flow ............................................................ 432.
 Circuit Check Between TCM and Differential Lock                                   CHECK SHEET ................................................ 433        .
 Control Unit .......................................................... 386
                                                                        .          CHECK SHEET RESULTS (EXAMPLE) ........... 435                           .
 Circuit Check Between Differential Lock Control                                 Circuit Check Between TCM and Driver Seat Con-
 Unit and Driver Seat Control Unit ........................ 387         .        trol Unit ................................................................. 449
                                                                                                                                                           .
 Circuit Check Between Driver Seat Control Unit and                              Circuit Check Between Driver Seat Control Unit and
 Data Link Connector ............................................ 388   .        Data Link Connector ............................................ 450      .
 Circuit Check Between Data Link Connector and                                   Circuit Check Between Data Link Connector and
 IPDM E/R ............................................................. 388
                                                                        .        IPDM E/R ............................................................. 451.
 ECM Circuit Check .............................................. 389   .        ECM Circuit Check ............................................... 452     .
 TCM Circuit Check .............................................. 390   .        TCM Circuit Check ............................................... 452     .
 Differential Lock Control Unit Circuit Check ......... 390             .        Driver Seat Control Unit Circuit Check ................. 453              .
 Driver Seat Control Unit Circuit Check ................ 391            .        Combination Meter Circuit Check ........................ 453              .
 Combination Meter Circuit Check ........................ 391           .        BCM Circuit Check ............................................... 454     .
 Display Control Unit Circuit Check ....................... 392         .        Data Link Connector Circuit Check ...................... 454              .
 BCM Circuit Check .............................................. 392   .        Steering Angle Sensor Circuit Check ................... 455               .
 Data Link Connector Circuit Check ...................... 393           .        Transfer Control Unit Circuit Check ..................... 455             .
 Front Air Control Circuit Check ............................ 393       .        ABS Actuator and Electric Unit (Control Unit) Circuit
 Transfer Control Unit Circuit Check ..................... 394          .        Check ................................................................... 456
                                                                                                                                                           .
 ABS Actuator and Electric Unit (Control Unit) Circuit                           IPDM E/R Circuit Check ....................................... 456        .
 Check .................................................................. 394
                                                                        .        CAN Communication Circuit Check ..................... 457                 .
 IPDM E/R Circuit Check ...................................... 395      .        IPDM E/R Ignition Relay Circuit Check ................ 457                .
 CAN Communication Circuit Check ..................... 396              .        Component Inspection ......................................... 458        .
 IPDM E/R Ignition Relay Circuit Check ................ 396             .          ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
 Component Inspection ......................................... 397     .          TION ................................................................. 458
                                                                                                                                                           .
   ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-                                        CAN SYSTEM (TYPE 15) ....................................... 459           .
   TION ................................................................. 397
                                                                        .        System Description .............................................. 459     .
CAN SYSTEM (TYPE 13) ...................................... 398         .        Component Parts and Harness Connector Location                            .459
 System Description .............................................. 398  .        Schematic ............................................................ 460.
 Component Parts and Harness Connector Location 398                     .        Wiring Diagram - CAN - ....................................... 461        .
 Schematic ............................................................ 399
                                                                        .        Work Flow ............................................................ 464.
 Wiring Diagram - CAN - ....................................... 400     .          CHECK SHEET ................................................ 466        .
 Work Flow ............................................................ 403
                                                                        .          CHECK SHEET RESULTS (EXAMPLE) ........... 468                           .

Revision: January 2005                                                   LAN-4                                                                   2004 Titan
  Circuit Check Between TCM and Driver Seat Con-                                   Data Link Connector Circuit Check ..................... 490            .
  trol Unit ................................................................ 484
                                                                           .       Steering Angle Sensor Circuit Check .................. 490             .       A
  Circuit Check Between Driver Seat Control Unit and                               Front Air Control Circuit Check ............................ 491       .
  Data Link Connector ........................................... 485      .       Transfer Control Unit Circuit Check ..................... 491          .
  Circuit Check Between Data Link Connector and                                    ABS Actuator and Electric Unit (Control Unit) Circuit                          B
  IPDM E/R ............................................................ 486.       Check .................................................................. 492
                                                                                                                                                          .
  ECM Circuit Check .............................................. 487     .       IPDM E/R Circuit Check ...................................... 492      .
  TCM Circuit Check .............................................. 487     .       CAN Communication Circuit Check ..................... 493              .
  Driver Seat Control Unit Circuit Check ................ 488              .       IPDM E/R Ignition Relay Circuit Check ............... 493              .       C
  Combination Meter Circuit Check ....................... 488              .       Component Inspection ......................................... 494     .
  Display Control Unit Circuit Check ...................... 489            .         ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
  BCM Circuit Check .............................................. 489     .         TION ................................................................. 494
                                                                                                                                                          .       D



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Revision: January 2005                                                      LAN-5                                                               2004 Titan
                                              PRECAUTIONS
                                                                                                            [CAN]
PRECAUTIONS                                                         PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           UKS001AE


The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
q    To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
     in the event of a collision which would result in air bag inflation, all maintenance must be per-
     formed by an authorized NISSAN/INFINITI dealer.
q    Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
     sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
     Bag Module, see the SRS section.
q    Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
     Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
     harness connectors.
Precautions When Using CONSULT-II                                                                             UKS001AF


When connecting CONSULT-II to data link connector, connect them through CONSULT-II CONVERTER.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
CHECK POINTS FOR USING CONSULT-II
1.   Has CONSULT-II been used without connecting CONSULT-II CONVERTER on this vehicle?



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