Nissan Maxima Service and Repair Manual: Body control system

System Description

OUTLINE

  • ECU DIAGNOSIS INFORMATION controls the various electrical components. It inputs the information required to the control from CAN communication and the signal received from each switch and sensor.
  • BCM has combination switch reading function for reading the operation status of combination switches (light, turn signal, wiper and washer) in addition to a function for controlling the operation of various electrical components.

    It also has the signal transmission function as the passed point of signal and the power saving control function that reduces the power consumption with the ignition switch OFF.

  • BCM is equipped with the diagnosis function that performs the diagnosis with CONSULT and various settings.

CAN communication control

In CAN communication, control units are connected with 2 communication lines (CAN-L, CAN-H) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives the data but selectively reads required information only.

CAN communication signal

BCM control function list

Nissan Maxima. BCM control function list

Nissan Maxima. BCM control function list

Component Parts Location

Nissan Maxima. Component Parts Location

  1. BCM M16, M17, M18, M19, M20, M21 (view with instrument panel removed)
    System description
    ...

    Combination switch reading system
    System Diagram System Description OUTLINE BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the status of each switch. BCM has a co ...

    Other materials:

    B2113 reclining motor
    Description The seat reclining motor is installed to the seatback assembly. The seat reclining motor is activated with the driver seat control unit. Tilts the seatback forward/backward by changing the rotation direction of reclining motor. DTC Logic DTC DETECTION LOGIC DTC No. ...

    Can communication system
    System 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 each vehicle, a ...

    Precautions on booster seats
    WARNING If a booster seat and seat belt are not used properly, the risk of a child being injured or killed in a sudden stop or collision greatly increases: Make sure the shoulder portion of the belt is away from the child's face and neck and the lap portion of the belt does not cross t ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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