Operation CHARM: Car repair manuals for everyone.

Fog/Driving Lamp: Description and Operation

FOG LAMPS

When the driver presses the fog lamp switch with the ignition switch in the ON or ACCY position, and the park lamps or low beam headlights are ON, the front fog lights will illuminate. The state of the fog lamps (on or off) will remain the same until the front fog lamp switch is pressed again. The park lamps or low beam headlights must be ON in order for the fog lights to be illuminated. The front fog lamp operation will be cancelled whenever the high beam headlights have been selected.

Voltage is supplied to the internal switch of the fog lamp relay through the RH high beam headlamp relay K132 with the high beams headlamps off. When the ignition switch is in the ON position, battery voltage is applied to internal logic of the fog lamp relay. When the park lamps are ON, battery voltage is applied to coil side of the fog lamp relay. When the fog lamp switch is turned to the ON position, ground is supplied to the relay coil of the fog lamp relay and the fog lamp relay energizes when the fog lamp relay energizes the fog lamp relay outputs battery voltage to the fog lamps and fog lamp indicator. Both of the fog lamps are permanently grounded to G103.