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:

    Tire Pressure Monitoring System (TPMS)
    This vehicle is equipped with the TPMS. It monitors tire pressure of all tires except the spare. When the low tire pressure warning light is lit and the "Tire Pressure Low-Add Air" warning appears in the vehicle information display, one or more of your tires is significantly under-inflated. I ...

    Basic inspection
    DIAGNOSIS AND REPAIR WORKFLOW Work Flow (With GR8-1200 NI) STARTING SYSTEM DIAGNOSIS WITH GR8-1200 NI To test the starting system, use the following special service tool:  GR8-1200 NI Multitasking battery and electrical diagnostic station NOTE: Refer to the diagnostic station Instru ...

    U0100 lost communication (ECM A)
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PREPARATION BEFORE WORK If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test. 2.PERFORM DTC CONFIRMATION PROCEDURE  Start the en ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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