Nissan Maxima Service and Repair Manual: U1000 CAN comm circuit

Description

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, 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.

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

Diagnosis Procedure

1.CHECK CONNECTOR

  1. Turn ignition switch OFF.
  2. Disconnect ABS actuator and electric unit (control unit) connector.
  3. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals.
  4. Reconnect connector and perform self-diagnosis

Nissan Maxima. CHECK CONNECTOR

    C1156 ST ANG sen com cir
    Description The steering angle sensor is connected to the ABS actuator and electric unit (control unit) in addition to CAN lines. CAN (Controller Area Network) is a serial communication line for ...

    Parking brake switch
    Description The parking brake switch converts the status of the parking brake pedal to an electric signal and transmits it to the combination meter. The combination meter, through CAN communicati ...

    Other materials:

    Center console assembly
    Exploded View Center console side finisher (LH) Center console finisher CVT finisher Center console storage bin Center console screw cover (LH) Center console rear finisher Center console screw cover (RH) Center console Center console lid assembly Cup holder Center cons ...

    Front door speaker
    Description The AV control unit sends audio signals to the front door speakers using the front door speaker circuits. Diagnosis Procedure 1.CONNECTOR CHECK Check the AV control unit and speaker connectors for the following: Proper connection Damage Disconnected or loose terminals 2. ...

    Rear door speaker
    Removal and Installation REMOVAL Remove the rear door finisher. Refer to INT-21, "Removal and Installation". Remove the rear door speaker screws (A). Disconnect the harness connector (B) from the rear door speaker (1) and remove. INSTALLATION Installation is in the r ...

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    Nissan Maxima Service and Repair Manual

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