F150 windows

Asked by May 07, 2017 at 04:42 PM about the 1999 Ford F-150

Question type: Maintenance & Repair

My passenger side window wont go up or down
and my driver's side will only go down. When it
goes down its from the auto down button. Now it's
stuck down and won't go back up. When I push the
down button I can here the relay for the auto down
Turning on and off.

1 Answer


Electric windows are 12V DC motors. They reverse by changing the polarity of the current from + to - via the switch through the motor. Check the drivers side first. Check the rubber boot between the door and the jamb where the wires pass for damaged wires. If there does not appear to be any damage, you'll need a multi-meter to check the main door switch on the drivers side. Check the net. There are probably a ton of videos showing you "how to". You probably do not have a color coded wiring diagram so the testing procedure will take a while-while you figure out the combinations.

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