System Description

SYSTEM

REAR FOG LAMP SYSTEM : System Description


OUTLINE

Rear fog lamp is controlled with the combination switch reading function and the rear fog lamp control function of BCM.

REAR FOG LAMP OPERATION

- BCM detects the condition of the combination switch by the combination switch reading function.
- BCM supplies voltage to rear fog lamp according to the rear fog lamp ON condition.
- When rear fog lamp switch signal is input (OFF --> ON) with headlamp ON and rear fog lamp OFF
- When rear fog lamp switch signal is input (OFF --> ON) with rear fog lamp ON
- Headlamp OFF
- BCM transmits the rear fog lamp status signal to the combination meter with CAN communication.
- Combination meter turns the rear fog lamp indicator lamp ON according to the rear fog lamp status signal.