Question about 1998 Chevrolet Cavalier

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2003 Chevy Cavlier Rear Window Defroster not working

The fuse is fine and when pushed in the switch lights up. None of the wires are receiving power though. The wires show no damage. My Dad looked/tested all of this. He is retired from GM Lordstown after 33 years of building these cars. Thank you.

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  • binzer1977 Feb 04, 2009

    I also have an '03 cavalier with a faulty rear window defroster. I checked the fuse, it's good. I can hear the relay trip when the switch is pushed and the indicator light lights up. I used a tester at the window connectors and it shows good voltage. None of the painted wire is broken on the window. When I place a test lead in one of the connectors and check the voltage accross the window it shows no voltage though. It's a very frustrating problem. Any help would be appreciated.

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I had the exact same problem and I had determined that it was in the wires leading to the rear defrost. The main problem area is in a connector located under the footrest for the drivers left foot under the carpet. The wire leading to the rear defrost runs through the drivers side under the plastic moulding in the car frame, the wire is black and the thickest one in the bundle. A large green/blue connector usually melts the plastic around the connection causing it to fail. I fixed this by just getting a new connector similar to my old one from a junkyard and just rewired it, connecting the same wires the connector as before. It is in an awful location but it is possible to do. Be sure solid connections are made and soldered correctly to prevent this from happening again.

Posted on Mar 15, 2009

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An open ground is suspect in wiring to rear wire clip for window... that would send same message to circuit that a *good connection would... do continuity test for power/ground at light and rear window connector to locate and work back

Posted on Dec 08, 2008

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