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:

    Trunk opener request switch
    Description Performs trunk lid open request when it is pressed. Component Function Check 1. CHECK FUNCTION With CONSULT Check trunk opener request switch REQ SW -BD/TR in Data Monitor mode. Diagnosis Procedure 1. CHECK TRUNK OPENER REQUEST SWITCH OUTPUT SIGNAL Turn ignition switch ...

    Interior trunk lid release
    WARNING Closely supervise children when they are around cars to prevent them from playing and becoming locked in the trunk where they could be seriously injured. Keep the car locked, with the rear seatback and trunk lid securely latched when not in use, and prevent children's access to ca ...

    How to read the displayed lines
    Guiding lines which indicate the vehicle width and distances to objects with reference to the vehicle body line A are displayed on the monitor. Distance guide lines Indicate distances from the vehicle body. Red line 1 : approx. 1.5 ft (0.5 m) Yellow line 2 : approx. 3 ft (1 m) Green ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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