Bad grounds cause weak dim lights and intermittent operation a positive circuit shorting to a metal ground causes shorts and blown fuses burnt connections. You need a wiring diagram for the circuit and need to trace the wires and look for a short. Or if there is no short in the wiring and this vehicle uses a module computer for the lighting the module could be faulty.
I have a 2000 malibu and the rear lights and dashlights dont work, replaces fuse and it keeps blowing any suggestions.
Try this site out see if it has any tips or downloads to follow www.the12volt.com but it sounds like you have a positive wire touching ground . your on the right track .
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So in the end it turned out to be poorly cut, very hard to see leads to the visor mirrors that eventually made contact with ground. It took eliminating almost every system one by one in the entire car wire by wire before I located it. Using the wiring diagram helped to completely eliminate systems and generate new ideas, but it was a bear. Total time: 6 evenings, around 19 hours labor...the price for rebuilding a stolen and stripped car.
1997 Honda accord DX, the dash lights and running lights don't work and it keeps blowing the 15A fuse under the hood. We've replaced the two relays under the hood, replaced the headlight switch on the steering column, disconnected all of the running light bulbs and the fuse still blows. Thanks to petejanemark, we pulled the driver side visor, disconnected the wire connector to the lighted mirror and the dash lights and running lights started working. Upon inspection, the insulation on the wire inside the visor had finally wore through and was grounding out. You could probably tape or repair the wire, but we left the mirror disconnected, taped over the metal connector and reinstalled the visor. Wow, no other website mentioned checking the visor wire, thanks Pete!
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