Question about 2000 Oldsmobile Alero

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Rear defroster there are 3 plugs on the rear glass. the 2 bottom plugs are directly across from each other i have continuity between both posts and have 12+ volts to right plug and the left plug has continuity to the frame indicating ground. the upper plug on the right side has neither power or continuity to the frame or any of the other post. i have replaced all fuses and one other part under the musts be some kind of amp reducer anyway the defroster does not work what did i miss

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  • tatester Nov 11, 2008

    I have the same issue. I know that 3rd connection is the antenna. Have you found a fix for this yet?

  • etnavygirl Dec 09, 2008

    If you find a solution to this please post!

  • RCutright Jan 01, 2009

    I have the same problem, and a bit more information.



    Fuse box under hood has fuse and relay for rear defroster, going by memory here(fuse 33 and relay 9).

    upper connector on rear glass is antenna.



    I would check to see if the 12 volts comes and goes when you push the defroster on/off button. If it does then the relay is probably good.



    Some other posts on the net mention some circtuit board or RF filter near the back conenction, behind the panels that has a tendency to go bad.





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I cant solve this problem but is there a module or conecter by one of the 6x9 that could go bad i read it on oldsmobile forum. What im trying to ask is there several different spots that you would have to replace in order to get the rear defrost to work if there is i cant find it online just wanting to get some help.

Posted on Apr 20, 2010

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K so i don't have a solution but it could be ur relay in ur dash that the button is conected to check that just cause the light comes on dosn't mean it works.

Posted on Dec 09, 2008

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