Nissan Rogue (T33) 2021-Present Service Manual: 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.