Circuit Description
WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
The fog lamp relay is energized by the fog lamp switch only when the Body Control Module (BCM) has activated the fog lamp enable circuit that supplies the fog lamp switch. The BCM will only activate the fog lamp enable circuit if the following conditions exist:
- The ignition switch must be in the RUN position.
- The autolamp switch must be in the Park or Headlamp ON position.
- The autolamp dimmer switch must be in the LOW-BEAM position.