System Description

SYSTEM DIAGRAM

Component		Function
Rear combination light (body side)	Stop light	BCM supplies power supply voltage to stop light, and turns the stop light ON or blinks. Exterior light appearance: Refer to Exterior Light AppearanceExterior Lamp Appearance. Bulb specifications: Refer to Bulb Specifications.
High-mounted stop light		BCM supplies power supply voltage to high-mounted stop light, and turns the high-mounted stop light ON or blinks. Exterior light appearance: Refer to Exterior Light AppearanceExterior Lamp Appearance. Bulb specifications: Refer to Bulb Specifications.
Stop light switch		Refer to Stop Light SwitchStop Lamp Switch.
BCM		Judges the vehicle status from each signal, and turns the stop light and high-mounted stop light ON or blinks.
ADAS control unit		When the automatic emergency braking operates, a request is transmitted to BCM (CAN communication) to turn ON the stop light.

OUTLINE

Stop light and high-mounted stop light is controlled by stop light switch reading function and the stop light and high-mounted stop light control function of BCM, automatic emergency braking function of ADAS control unit.

STOP LIGHT AND HIGH-MOUNTED STOP LIGHT OPERATION

BCM detects the brake pedal position status from stop light switch.
BCM supplies voltage to stop light and high-mounted stop light according to the stop light and high-mounted stop light ON condition.
Stop light and high-mounted stop light ON condition
- Brake pedal is depressed

AUTOMATIC EMERGENCY BRAKING FUNCTION

When the automatic emergency braking operates, the ADAS control unit transmits the stop light request signal to BCM via CAN communication. (For details about the automatic emergency braking, refer to System Description.)
When BCM receives the stop light request signal from the ADAS control unit, it supplies power to the stop light and high-mounted stop light systems, turning ON the stop light and high-mounted stop light.