my power windows only occasionally work and we have had them looked at several times. we thought it could have been a faulty ignition switch and had it changed it helped a little but still have problems. any ideas
would get into the driver’s side door panel and physically inspect the control switch for corrosion and bad connections.
Other possibilities are a loose/bad connection, corrosion at the fuse, or a bad motor. You’ll need to take off the interior door panel and using a volmeter or a test light see if you can eliminate some of these possibilities.