Nissan Murano: System / Power Consumption Control System

Nissan Murano (Z52) 2015-2024 Service Manual / Electrical & Power Control / Body Control System :: Bcm / System Description / System / Power Consumption Control System

System Description

SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table:

Component parts Signal description
IPDM E/R

  • Each unit transmits the sleep-ready signal (ready) to BCM when all of the CAN sleep conditions are fulfilled.

  • Each unit transmits the wake-up signal to BCM when all of the CAN sleep conditions are fulfilled.

  • Each unit receives the sleep wake up signal (sleep) from BCM via CAN communication.

  • Each unit receives the sleep wake up signal (wake-up) from BCM via CAN communication.
Combination meter
BCM

  • BCM transmits the sleep wake up signal (sleep) to each unit when all of the CAN sleep conditions are fulfilled.

  • BCM transmits the sleep wake up signal (wake-up) to each unit when all of the CAN sleep conditions are fulfilled.

  • BCM receives the sleep-ready signal (ready) from each unit via CAN communication.

  • BCM receives the wake-up signal from each unit via CAN communication.

OUTLINE

  • BCM incorporates a power saving control function that reduces the power consumption according to the Nissan Murano vehicle status.

  • BCM switches the status (control mode) by itself with the power saving control function. It performs the sleep request to each unit (IPDM E/R and combination meter) that operates with ignition switch OFF.

    Normal mode (wake-up)

    • CAN communication is normally performed with other units

    • Each control with BCM is operating properly

    CAN communication sleep mode (CAN sleep)

    • CAN transmission is stopped

    • Control with BCM only is operating

    Low power consumption mode (BCM sleep)

    • Low power consumption control is active

    • CAN transmission is stopped

LOW POWER CONSUMPTION CONTROL WITH BCM

BCM reduces the power consumption with the following operation in the low power consumption mode:

  • The reading interval of each switch changes from a 10 ms interval to a 60 ms interval.

Sleep mode activation

  • BCM receives the sleep-ready signal (ready) from IPDM E/R and combination meter via CAN communication.

  • BCM transmits the sleep wake up signal (sleep) to each unit when all of the CAN sleep conditions are fulfilled.

  • Each unit stops the transmission of CAN communication with the sleep wakeup signal. BCM is in CAN communication sleep mode.

  • BCM is in the low power consumption mode and performs the low power consumption control when all of the BCM sleep conditions are fulfilled with CAN sleep condition.

Sleep condition
CAN sleep condition BCM sleep condition

  • Receiving the sleep-ready signal (ready) from all units

  • Ignition switch: OFF

  • Nissan Murano Vehicle security system alarm and panic alarm: No operation

  • Warning lamp: No operation

  • Intelligent Key warning buzzer: No operation

  • Stop lamp switch: OFF

  • Turn signal indicator lamp: No operation

  • Exterior lamp: OFF

  • Door lock status: No change

  • CONSULT communication status: No communication

  • Meter display signal: Non-transmission

  • Door switch status: No change

  • Rear window defogger: OFF

  • Interior room lamp battery saver: Time out

  • RAP system: OFF

  • Power window switch LIN communication: No transmission

  • Push-button ignition switch illumination: OFF

  • NATS: No operation

  • Remote keyless entry receiver communication status: No communication

  • TPMS system: Stop

Wake-up operation

  • BCM transmits the sleep wake up signal (wake up) to each unit when any of the CAN wake-up conditions are fulfilled. It changes from the low power consumption mode or the CAN communication sleep mode to the normal mode.

  • Each unit starts the transmission of CAN communication with the sleep wake up signal. In addition, the combination meter transmits the wake up signal to BCM via CAN communication to report the CAN communication start.

BCM wake-up condition CAN wake-up condition

  • Door unlock sensor: OFF→ON, ON→OFF

  • Front door lock assembly LH: Lock or unlock

  • Door lock switch: OFF→ON

  • Door unlock switch: OFF→ON

  • Back door opener switch: OFF→ON

  • Power window LIN communication: Receiving

  • Remote keyless entry receiver: Receiving valid keyfob

  • Receiving the sleep-ready signal (Not-ready) from any units

  • Push-button ignition switch: OFF→ON

  • Hazard switch: OFF→ON

  • PASSING switch: OFF→ON, ON→OFF

  • TAIL LAMP switch: OFF→ON

  • Front door switch LH: OFF→ON, ON→OFF

  • Front door switch RH: OFF → ON, ON → OFF

  • Back door opener switch: OFF→ON, ON→OFF

  • Front outside handle assembly LH (request switch): OFF→ON

  • Front outside handle assembly RH (request switch): OFF→ON

  • Back door request switch: OFF→ON

  • Stop lamp switch signal: ON

  • Remote keyless entry receiver: Receiving valid keyfob

    Signal Buffer System

    System Description SYSTEM DIAGRAMOUTLINEBCM has the signal transmission function that outputs/transmits each input/received signal to each unit.Signal transmission function list Signal name Input Output Description Push-button ignition switch signal Push-button ignition switch BCM Transmits the push-button ignition switch signal to the BCM...

    Shipping Mode Control System

    System Description SYSTEM DIAGRAMSignal transmission function list Signal name Input Output Description Shipping mode status signal BCM Combination meter (CAN) Transmits shipping mode status signal to combination meter when condition is established...

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    Categories

    Vehicle security system

    Nissan Murano. Vehicle security system

    Your vehicle has two types of security systems:

    Vehicle security system NISSAN Vehicle Immobilizer System

    The vehicle security system provides visual and audible alarm signals if someone opens the doors, liftgate or the hood when the system is armed. It is not, however, a motion detection type system that activates when a vehicle is moved or when a vibration occurs.

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