Operation CHARM: Car repair manuals for everyone.

Marker Lamp: Description and Operation

When the headlamp switch is moved to the PARK or HEAD position, battery voltage is applied to the underhood electrical center through CKT 9. Battery voltage passes from the underhood electrical center to both of the license lamps, both of the tail lamps, all the park lamps, and all of the side markers through CKT 9 Export vehicles will use in-line fuses to protect these circuits, one for the right side and one for the left side. Both license lamps, both of the tail lamps, all park lamps, and all side markers are grounded by circuit 150 through Splice Packs #102, #400, or #402 to ground.