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:

    BCM (body control module)
    Reference Value NOTE: The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information. Activate and display TPMS transmitter IDs Display tire pressure reported by the TPMS transmitter Read TPMS DTCs Re ...

    Diagnosis and repair workflow
    Work Flow OVERALL SEQUENCE DETAILED FLOW\ 1.CHECK SYMPTOM Check the malfunction symptoms by performing the following items. Interview the customer to obtain the malfunction information (conditions and environment when the malfunction occurred). Check the symptom. 2.SELF-DIAGNOSIS ( ...

    Turn signal and hazard warning lamp system
    Wiring Diagram ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

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