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Why does my rear defroster keep blowing fuses? 200 1990

posted by  someone claiming to be Gary Smith on  Thu Dec 27 01:36 CST 2001 [RELATED]

There is also a chance that the tailgate wiring harness has frayed. Alas I can't tell you which side the defroster wires are on, but checking and replacing them is not all that difficult. However, since you have to pull the rear corners of the headliner off, it does help to have the car in a warm place like a heated garage - I don't have a garage and I wouldn't want to play with the headliner in our 25 degree weather today here in CT!

The tailgate harnesses run from the 'ceiling' of the car up thru the 'gate hinges and into the gate. There is a multi-pin molded connector for each side, near the back corners not all that far from the hinges. As a diagnostic effort you could disconnect the connector, then check each side of the connector with a meter for power, ground, etc.

If you do find a bad harness, I recommend replacing both sides at the same time. You will need a helper to assist you with the tailgate removal and reinstallation - it's not heavy, just unwieldy. It took my 14-yr old son and me about 2.5 hours to do the job.






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