Why Aren’t the Power Windows Working?
Q. I’m trying to help of a friend of mine with a 2000 Buick LeSabre. None of the power windows on the car will go up or down. Can you tell me what I need to check or what it might be?
A. This diagnostic and repair is not as simple as it once was. Even this 14 year old car uses a computer to run the windows. Start with the basics such as checking for a faulty fuse or broken wire. The driver’s door has a large cluster of wires that run to it and over the years of opening and closing the wires can break. The windows motor/controls are powered by discreet power and ground circuits. Just to give you an idea on how the windows work the driver’s door module receives a request from the window switch over a “data’’ line, if the status information is correct only then does the window open. This system can even generate a computer fault code to help with diagnosis.
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