Fog/Driving Lamp: Description and Operation

Power is supplied at all times to fog lamp relay terminal (3) through:
^ 15 A fuse (No. (46), located in the fusible link and fuse box)
With the lighting switch in the 2ND position and LOW ("B") position, power is supplied
^ through 20 A fuse (No. (40), located in the fusible link and fuse box)
^ to lighting switch terminal (5)
^ through terminal (7) of the lighting switch
^ to fog lamp relay terminal (2).

Fog lamp operation
The fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position and LOW ("B") position for fog lamp operation.
With the fog lamp switch in the ON position:
^ ground is supplied to fog lamp relay terminal (1) through the fog lamp switch and body ground (E42).
The fog lamp relay is energized and power is supplied
^ from fog lamp relay terminal (5)
^ to terminal (1) of each fog lamp.
Ground is supplied to terminal (2) of each fog lamp through body ground (E28) and (E42).
With power and ground supplied, the fog lamps illuminate.