Nissan Rogue (T33) 2021-Present Service Manual: Power Consumption Control System

Nissan Rogue (T33) 2021-Present Service Manual / Body Exterior, Doors, Roof & Vehicle Security :: Door & Lock / System Description :: System (intelligent Key System) / Power Consumption Control System

System Description

SYSTEM DIAGRAM

Description

  • Intelligent Key unit incorporates a power consumption control function that reduces the power consumption according to the Nissan Ariya vehicle status.

  • Intelligent Key unit changes its status (control mode) with the sleep wake up signal received from BCM via CAN communication.

    Normal mode (wake-up)

    • CAN communication is normally performed with other control units.

    • Individual unit control by Intelligent Key unit is normally performed.

    Low power consumption mode (sleep)

    • Low power consumption control is active.

    • CAN transmission is stopped.

Sleep Mode Activation

  • Intelligent Key unit judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of the conditions below are present. Then it transmits a sleep-ready signal (ready) to BCM via CAN communication.

    • Outputting signals to actuators

    • Output requests are being received from control units via CAN communication.

  • Intelligent Key unit stops CAN communication and enters the low power consumption mode when it receives a sleep wake up signal (sleep) from BCM and the sleep-ready conditions are fulfilled.

Wake-Up Operation

  • Intelligent Key unit changes from the low power consumption mode to the normal mode when it receives a sleep wake-up signal (wake up) from BCM or any of the following conditions is fulfilled. In addition, it transmits a sleep-ready signal (not-ready) to BCM via CAN communication to report the CAN communication start.

    • Ignition switch ON

    • Push-button ignition switch status changes.

    • Each door request switch status changes.

    • An output request is received from a control unit via CAN communication.

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