Fog/Driving Lamp: Description and Operation

The fog lamp system consists of a foglamp relay, a fog lamp switch, and the fog lamps. Battery voltage is applied to the fog lamp relay and the fog lamp switch through CKT 9, from the headlamp switch. The fog lamps will only operate when the headlamp switch is in the ON or PARK position. When the headlamp switch is in the ON or PARK position, and the fog lamp switch is pressed, current will flow through the coil side of the fog lamp relay through CKT 317 to the fog lamp switch. Current will also flow through CKT 9 to the fog lamp on indicator. Current flow from the fog lamp switch grounds through CKT 450 to the right body ground splice pack (with RKE) or the right body ground (w/o RKE).

When the fog lamp clay is energized, battery voltage is applied from the 10A FOG LP fuse to CKT 34 to the fog lamps. The fog lamps ground through CKT 150 to the forward lamp ground splice pack.