Daytime Running Light Wiring Diagram. When the engine is running you have a positive supply to both sides of the bulb thus not giving it an earth so the light goes out. 2003 pontiac montana daytime running lights wiring diagram.
Measure the resistance of the relays. Daytime running lights wiring diagram wiring view and schematics diagram this area is a growing library of the schematics, wiring diagrams and technical photos The white wire is your ground and needs to be attached to a clean bare metal surface.