I'm trying to get the rear window defroster to.

BENSJETS

MEMBER
2002 CHEVROLET CAVALIER
65,000 MILES

I'm trying to get the rear window defroster to work. I checked the fuse, it's ok and there is juice there. The light comes on when the defroster button is pushed, but there is no juice on either side of the window at the connectors. I'm sure there is a relay somewhere for this and if so does anyone know where it's located or have any suggestions other then ripping the molding off and tracing the wires. Also, I only have a test light to use, but it would at least lite the bulb if there was any juice I would believe.
Thanks,
Norm

5 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

Power to grid comes from HVAC control head via an electronic timmer and electronie relay. If you can get a DVOM would be better for testing

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Thursday, April 4th, 2013 AT 5:01 PM

BENSJETS

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64 POSTS

Where is this HVAC located? Sorry, but I probably couldn't read or use a DVOM if I owned one.

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Thursday, April 4th, 2013 AT 5:21 PM

DOCFIXIT

MECHANIC
18,828 POSTS

HVAC is control head for AC and heater ie. Buttons and switches you move on dash

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Thursday, April 4th, 2013 AT 5:24 PM

BENSJETS

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64 POSTS

OK. I think I got you there. Is this something that plugs into all the switches, or does it just plug into the back panel behind the defroster switch?

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Thursday, April 4th, 2013 AT 6:34 PM

DOCFIXIT