how are lights grounded on a car? Seems like all the wires to the light have electricity running to them.
Most of the wires are for power supply. The ground is a short wire to the frame. There is a piece of wire that goes from the frame to the negative terminal completing the circuit.
Is somebody suppose to know what light you're talking about?
if they all had power running through them they wouldn't work. sometimes they use a relay to make a ground. would help if you said what you are dealing with.
a ground runs from light assembly to the body of the car (unit body cars)usually just trace the wires if you can or look up a wiring schematic on the internet for your car that's the best thing to do actually or buy a manual with the electrical diagrams good luck
