Operation CHARM: Car repair manuals for everyone.

Tail Lamp: Description and Operation

Voltage is applied through the EXT LP Fuse to the Headlamp Switch at all times. When the Headlamp Switch is in "PARK," or "HEAD," voltage is applied to all of the lamps in this circuit Voltage for the license lamps on the Pontiac Coupe is supplied through the HVAC fuse, and are lit with the vehicle in RUN.