DANG60 0 Posted May 10, 2007 The front fogs on my car, out of the two one works fine, the passenger side doesn't. The fuses are o.k. Im picking up a voltage on the earth wire on this foglite but it hasn't blown the fuse. Theres nothing on the live side. Thie voltage on the earth is only there when the headlights are switched on, i think that the fogs are fed off the headlight and are then fused after the foglight switch. Could it be a dodgy headlight switch as this went and i replaced it with a second hand one. Before this switch replacement both fogs would work but obviously the headlights wouldn't, the fogs were still picking their feed up from the knackered switch. Does anyone have any ideas as im slowly running out lol. Sorry about the long post, tried using the search but couldnt really find anything that fits n their never seems to be 2 faults the same on a C. Quote Share this post Link to post Share on other sites