This is one of the most frequent problems on these cars.

If you do a search for wiring harness, you will find that there have been numerous problems with the insulation on the wires breaking down and causing shorts. The repair is to replace the harness.

-Good luck

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record