Electrical Problem--Need Help Fast!

[Capri306]

If it's the yellow wire that's larger than most of the other fusible links then it powers a LOT of things. I suspect you'll be wanting to invest in a circuit tester and start probing around. Check the library for a detailed schematic, then you can at least narrow it down. Have you performed any service on the vehicle lately? Did you get into an accident at all? Any of these things could've pinched a wire somewhere, or possibly one has an abrasion through the insulation somewhere and is shorting to ground. Have patience with it, and just keep narrowing it down methodically; peel back the wire looms to get a better idea of where it goes. It may help to disconnect things one at a time on the circuit to see what's causing it, or at least to isolate it, too. Happy hunting.