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:

    AV control unit
    Removal and Installation AV control unit AV control unit bracket (LH) AV control unit bracket (RH) A/C auto amp. Cluster lid C (with A/C and AV switch assembly attached) Clip AV CONTROL UNIT Removal CAUTION: Before replacing AV control unit, perform "READ CONFIGURATI ...

    Fuel level sensor signal circuit
    Description The fuel level sensor unit and fuel pump (fuel level sensor) detects the approximate fuel level in the fuel tank and transmits the fuel level signal to the combination meter. Component Function Check 1.COMBINATION METER INPUT SIGNAL  Select "METER/M&A" on CONSULT. ...

    Fuel-filler cap
    WARNING Gasoline is extremely flammable and highly explosive under certain conditions. You could be burned or seriously injured if it is misused or mishandled. Always stop the engine and do not smoke or allow open flames or sparks near the vehicle when refueling. Do not attempt ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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