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Wake-Up Operation

The 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 the BCM via CAN communication to report the CAN communication start.

BCM wake-up condition

CAN wake-up condition

Front door lock assembly LH (door unlock sensor): Lock or unlock
Door lock switch: OFF->ON
Door unlock switch: OFF->ON
Trunk lid opener switch: OFF->ON

Receiving the sleep-ready signal (Not-ready) from any units
Ignition switch (push 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
Trunk lid opener switch: OFF->ON, ON->OFF
Front outside handle LH request switch: OFF->ON
Front outside handle RH request switch: OFF->ON
Trunk opener request switch: OFF->ON
Stop lamp switch signal: ON