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lan


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LAN SYSTEM


K ELECTRICAL

                                                                                                                                                                   A




                                                                                  SECTION                     LAN    LAN SYSTEM
                                                                                                                                                                   B



                                                                                                                                                                   C


                                                                                                                                                                   D


                                                                                                                                                                   E
                                                                CONTENTS
                                  CAN                                            VDC/TCS/ABS Control Unit Circuit Check ............ 28                   .        F
                                                                                 IPDM E/R Circuit Check ........................................ 29       .
PRECAUTIONS ......................................................... 2
                                                                      .          CAN Communication Circuit Check ....................... 30               .
 Precautions for Supplemental Restraint System                                   IPDM E/R Ignition Relay Circuit Check ................. 32               .        G
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                         Component Inspection ........................................... 32      .
 SIONER" ................................................................. 2
                                                                      .            ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
 Precautions for Battery Service ............................... 2    .            TION ................................................................... 32
                                                                                                                                                          .
 Precautions When Using CONSULT-II .................... 2             .                                                                                            H
                                                                                CAN SYSTEM (TYPE 2) .......................................... 33         .
   CHECK POINTS FOR USING CONSULT-II ........ 2                       .          System Description ................................................ 33   .
 Precautions For Trouble Diagnosis ......................... 2        .          Component Parts and Harness Connector Location 33                        ...
   CAN SYSTEM ...................................................... 2.          Schematic .............................................................. 34
                                                                                                                                                          .         I
 Precautions For Harness Repair ............................. 3       .          Wiring Diagram - CAN - ......................................... 35      .
   CAN SYSTEM ...................................................... 3.          Work Flow .............................................................. 38
                                                                                                                                                          .
CAN COMMUNICATION ........................................... 4       .            CHECK SHEET .................................................. 39      .         J
 System Description ................................................. 4
                                                                      .            CHECK SHEET RESULTS (EXAMPLE) ............ 41                          .
 CAN Communication Unit ....................................... 4     .          Circuit Check Between TCM and Data Link Con-
   TYPE 1 ................................................................. 4
                                                                      .          nector ..................................................................... 52
                                                                                                                                                          .
   TYPE 2 ................................................................. 6
                                                                      .                                                                                            LAN
                                                                                 Circuit Check Between Data Link Connector and
CAN SYSTEM (TYPE 1) ............................................ 8    .          VDC/TCS/ABS Control Unit ................................... 53          .
 System Description ................................................. 8
                                                                      .          ECM Circuit Check ................................................ 54    .
 Component Parts and Harness Connector Location 8                     .....      TCM Circuit Check ................................................ 54    .         L
 Schematic ............................................................... 9
                                                                      .          Data Link Connector Circuit Check ....................... 55             .
 Wiring Diagram - CAN - ........................................ 10   .          Combination Meter Circuit Check .......................... 55            .
 Work Flow ............................................................. 13
                                                                      .          BCM Circuit Check ................................................ 56    .        M
   CHECK SHEET .................................................. 14  .          Steering Angle Sensor Circuit Check .................... 56              .
   CHECK SHEET RESULTS (EXAMPLE) ............ 16                      .          VDC/TCS/ABS Control Unit Circuit Check ............ 57                   .
 Circuit Check Between Data Link Connector and                                   IPDM E/R Circuit Check ........................................ 57       .
 VDC/TCS/ABS Control Unit .................................. 25       .          CAN Communication Circuit Check ....................... 58               .
 ECM Circuit Check ................................................ 26.          IPDM E/R Ignition Relay Circuit Check ................. 60               .
 Data Link Connector Circuit Check ....................... 26         .          Component Inspection ........................................... 60      .
 Combination Meter Circuit Check ......................... 27         .            ECM/IPDM E/R INTERNAL CIRCUIT INSPEC-
 BCM Circuit Check ................................................ 27.            TION ................................................................... 60
                                                                                                                                                          .
 Steering Angle Sensor Circuit Check .................... 28          .




                                                                         LAN-1
                                              PRECAUTIONS
                                                                                                            [CAN]
PRECAUTIONS
[CAN]                                                               PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           AKS003EX


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 for Battery Service                                                                               AKS00B6D


Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions When Using CONSULT-II                                                                             AKS00AIN


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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