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:

    Turning the FEB system on/off
    Perform the following steps to turn the FEB systems ON or OFF. 1. Press the   button until "Settings" displays in the vehicle information display and then press OK button. Use the  button to select "Driver Assistance". Then press the OK button. 2. Select "Emergency Brake" ...

    Precaution
    PRECAUTIONS Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and fron ...

    P0452 evap control system pressure sensor
    Description The EVAP control system pressure sensor detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PRECONDITIONING If DTC Confirmation Procedure has been previously ...

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