Question about 1989 Cadillac Sedan DeVille

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I have a 89 cadi dev, today the heater motor would not turn of when i turned the car off. So my battery ran down. How can i find the problem?

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  • joel2v26
    joel2v26 Jan 01, 2009

    I had the same problem with my 1989 Cadillac Deville 4.5L and all I had to do is replacing the "Electronic Climate Control Module" also called: "Blower Motor Power Module" after making sure that all my fuses were in good condition in my fuse box.
    Making sure that the positive wire of the battery is disconnected when doing the job. All works fine after that.

    Wilner

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HVAC blower resister located on firewall in top of plastic duct. I have replaced four of them for different GM cars and trucks with climate control. Joefish

Posted on Jan 29, 2009

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