Exterior Lighting

Headlight, parklight and foglight switch sends input signals to Body Control Module (BCM) indicating switch position. When BCM receives signals, BCM will send request signal to Front Control Module (FCM) to turn requested lights on. If lights are left on for more than 3 minutes with ignition off, BCM will turn off lights. On vehicles equipped with auto headlights, electromatic rearview mirror and Compass/Mini Trip Computer (CMTC), BCM will turn headlights on when CMTC senses it is dark outside and auto headlight switch is on.