Please don't tell me it's the switch or motor. I tested the switch on the drivers side and it worked. I put the drivers switch on the pass side and the same problem continued. I pulled the regulator and ran it on the drivers side posts and it works both ways. It's not the switch or regulator unless the switch on the pass side is different than the drivers. Would the pass switch work on the driver side, but the driver side won't work on the pass side??? Maybe because of the automatic roll down feature on the driver side??? Maybe the previous owner put two drivers side switches on both front windows when it is only suppose to be on the driver side??? I have nothing to go off of!