I have a 1989 GMC Vandura and the power windows do not operate I have a good fuse
Use a test light to check for power at the switches - especially the driver’s door master switch. If none of the windows work from their individual switches either, you can have a bad master window switch. A common problem that can happens as these vehicles age is a broken wire or wires in the driver’s door jamming. Have a technician inspect your window issue and repair it accordingly.
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