Thread: Rear window defrost

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  1. #1 Rear window defrost 
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    My rear window defrost has quit working. Ive checked the fuse in the glove box and I can hear the relay click on when I push the defrost button. Any other ideas on how to fix ?
    2002 Grand Prix GTP
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  2. #2 Re: Rear window defrost 
    Killa Bee Scottydoggs's Avatar
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    top driver side of the back window look for two wires that come from the head liner to the glass. they tend to break.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: Rear window defrost 
    GTP Level Member Impala131's Avatar
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    I would check the tabs as well. Seems obvious, but sometimes one seems to hang just above the defroster grid without touching.
    2003 Grand Prix GTP.... the journey begins again....
    E85 Self Tune with HPT, 80# Injectors, Gen V 3.4 pulley, SD Headers, AL605 Plugs
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  4. #4 Re: Rear window defrost 
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    Thanks ill check it all out
    2002 Grand Prix GTP
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  5. #5 Re: Rear window defrost 
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    Look at the coil in the window and see if there are breaks. Sometimes you can't see them though

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  6. #6 Re: Rear window defrost 
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    I checked the wires and tabs at the back window they look good. I'm gonna try and check voltage and see where its at, I assume I should get 12v back there with the rear defrost on ?
    2002 Grand Prix GTP
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