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Strange electrical problem - '91 Dakota

First thing the other morning, the Brake Warning light (red one, not the ABS one) came on and the blower wouldn't blow. When I turn the blower switch off, the brake light goes off. Also, in reverse, the reverse lights don't work, and the same brake warning light goes on. I notice in the wiring diagram, that the blower motor & reverse lights get power from the same point on the ignition switch. But I don't see the connection to the brake light. I assume I've got a bad connection or ground somewhere, where to get started?

Reply to
Bruce Porter
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Sounds like a bad ground somewhere; instead of the current going to ground through the normal/correct route, it's backfeeding into the common power source. I would start by inspecting the ground at the brake lights, only because they are probably more susceptable to corrosion. Next I would check the blower circuit. If you don't find a bad ground at either location, inspect the ground for every component shared by the common power source.

I've seen really weird things happen from a bad ground...

Reply to
Ed H.

Reply to
Bruce Porter

Sounds to me like someone oversized a fuse as well.

Reply to
TBone

I'm glad you found the problem. Thanks for the update.

Reply to
Ed H.

That would be Dodge?

30 amps is an awful lot.

TB> Sounds to me like someone oversized a fuse as well.

Reply to
Bruce Porter

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