2500 4x4 Pickup V8-318 5.2L Magnum (1995)
Underhood Lamp: Description and Operation
Circuit M1 from the IOD fuse (fuse 17) in the fuse block supplies battery voltage for the underhood lamp. A mercury switch, in series after the lamp,
connects the lamp to ground on circuit Z1. When the hood is raised, mercury inside the switch moves to a position where it connects circuit M1 to
ground circuit Z1, illuminating the lamp.
