| Re: Electrical and horn nightmare!!! Posted by Greg S on December 19, 2007 at 23:26:40: In Reply to: Electrical and horn nightmare!!! posted by Fran on December 19, 2007 at 22:19:43: This isn't a complicated problem at all. Seriously! You simply have a grounding fault in your wiring. The horn button actually allows the horn to ground. There is power on the horn all the time and grounding it by pressing the horn button makes it sound. So-- start tracing the horn ground wire till you find where it has rubbed through. Engine movement or G forces from braking cause the bare wire to ground on something. It doesn't trip a fuse because it is ground, not power. Same is probably true for the other items. Interior lights turn on when the door switch goes to, ready for it? Ground! Because there are a number of items, my guess is that there is an important ground wire off somewhere or corroded (doesn't take much corrosion). Chances are that more than one item faults at the same time as a working component is trying to find ground where ever it can and is doing so through some of these other things. Like the window switch can't find ground so it routes through your widget snaffler or some other weird combination. So, it might not be a bare wire for the horn like I suggested first but a common ground not working properly. Like I said, it isn't complicated. Finding it probably will be!
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