Operation CHARM: Car repair manuals for everyone.

Fog Lamps

PRINCIPLES OF OPERATION

The fog lamp switch is integral to the headlamp switch. When the fog lamp switch is engaged, voltage is routed to the fog lamp relay coil, which then energizes and routes voltage to the fog lamps. The fog lamp relay coil uses the high beam circuit for ground. When the high beams are turned on, the fog lamp relay will not energize.