Nissan Maxima Service and Repair Manual: U1000 CAN comm circuit

Description

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Signal Chart, refer to LAN-24, "CAN Communication Signal Chart".

DTC Logic

DTC DETECTION LOGIC

Diagnosis Procedure

1.PERFORM SELF DIAGNOSTIC

  1.  Turn ignition switch ON and wait for 2 seconds or more.

  2.  Check "Self Diagnostic Result".

    DTC/circuit diagnosis
    ...

    U1010 control unit (CAN)
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1. REPLACE BCM When DTC U1010 is detected, replace BCM.  Replace BCM. Refer to BCS-79, "Removal and Installation". ...

    Other materials:

    Diagnosis system (driver seat C/U)
    Diagnosis Description The auto drive positioner system can be checked and diagnosed for component operation with CONSULT. DIAGNOSTIC MODE Diagnostic mode [AUTO DRIVE POS.] Description WORK SUPPORT Changes the setting of each function SELF DIAGNOSTIC RESULT Perf ...

    Condenser
    Removal and Installation REMOVAL Remove the rear pillar finisher LH. Refer to INT-24, "Removal and Installation". Disconnect the harness connector, remove bolt (A), and then remove condenser (1) from the vehicle body. INSTALLATION Installation is in the reverse order of ...

    Lighting & turn signal switch
    Removal and Installation NOTE: The lighting and turn signal switch is integral with the combination switch assembly. REMOVAL Unlock steering wheel. CAUTION: Before servicing, disconnect both battery terminals and wait at least three minutes Do not use air tools or electric tools ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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