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:

    Removal and installation
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    Removal and installation
    IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) Removal and Installation CAUTION: Do not remove the relays from the IPDM E/R. Tampering with the relays may cause additional incidents with the vehicle. REMOVAL Disconnect battery negative terminal. Refer to PG-67, " ...

    Rear door glass
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    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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