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Power Window Problem - front passenger goes down but not up

54K views 16 replies 9 participants last post by  lukebuck 
The window switches in modern vehicles are not wired directly to the motor like they have been in the past. The power window motor is operated by a digital controller that is commanded "up/down" by the switch. The controller is built into the door module. When you operate the passenger window switch on either door, via Class II Serial Data, it instructs the passenger door module to run the motor. Your passenger door module is bad since you can connect the driver's door module to it and it works normally. You can get one off e-bay for under $40.

The passenger door module is built into the switch panel, so you just replace the whole thing.
 
My '02 does this if you try to lock the doors with the switch and the key is in the ignition- the driver's door locks then unlocks. Door locks and stays locked if the key isn't in the ignition.
 
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