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Electrical Question Re: Fog light (archive)

[ Follow Ups ] [ 6-series (E24) Message Board ] [ Msg. Board FAQ ]

Posted by James Lee on October 21, 2000 at 11:19:20:

Another question about my fog light (in case you missed the previous post, one light works, one doesn't.) I'm hypothesizing that the ground for the right side fog light (the light that doesn't work) has a break somewhere, and because the fog lights are supplied + and grounded independently, the circuit for the right side is open, and the light consequently doesn't work. The left side is fine. I tested voltage at the fuse box, found voltage on the left light's circuit but didn't find voltage on the right. The question is: If I jumper the negative of the left fog light to the negative on the right fog light (creating a ground for the right fog light by sharing the left's ground), will I cause a problem in voltage supply? Could this give birth to a gremlin later? Will my driving lights be as bright as possible? I think they should, because they're both fed positive juice independently, but can sharing the ground cause problems?
Wish I were an electrical engineer so I could've figured this out last night while asleep, but since I'm not, I'm looking forward to anyone shedding light on the subject (grin).
James


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