[AdamIsAdam]

Originally Posted by patrickt

You know, the wiring on my Cobra is far and away of higher quality than on my daily drivers. This weekend I spent several hours chasing down, and finally finding, a faulty ground that is relatively notorious in the Jeep world. One headlight had gone out on me, and showed no ground feed at the light. When I ran a quick supplemental ground to the headlight, the dashboard brake light would stay on! When I ran a supplemental ground to the brake fluid sensor switch, I got the brake light to behave normally. Obviously my bandaid fixes were not the final solution and there was a sneaky ground issue somewhere. When I finally found the answer on a Jeep forum it was a faulty ground in a nine-wire ground bundle to the frame that fails invisibly up from the crimp. From the outside it looked absolutely fine and you couldn't wiggle it to produce any tell-tale effects. But when you cut it open, the connections would literally crumble in your hand.

What year Jeep?