My driver's door power window quit working awhile ago and I've just now begun trying to fix it, but have run into all sorts of dead ends. For the life of me, I cannot figure out what the source of the problem is!!
Let me explain.
1. After the door card was removed, and upon pushing the PW button, I could hear the motor "click" but nothing would happen. If power was getting to the window, I figured some part of the motor went bad. Ordered a new motor/regulator.
2. Upon receiving the new motor/regulator unit and prior to installing, I removed the motor wiring harness and plugged it into the new unit to ensure this was the issue. The new motor worked just fine.
3. I removed the old regulator and replaced it with the new unit. Problem solved!? Not quite. With the new motor, the window goes down fine...however, when the switch is pulled to bring the window up, it goes about .5 inch and stops. Pull again, half inch again. Watch here: https://gofile.io/?c=CoR7cK. Additionally, auto-down and auto-up are non-functional.
4. I removed the motor wiring harness and powered the motor directly from the battery. Goes up and down just fine.
5. I swapped the P/W relay in the fuse box of engine compartment. No change.
6. I picked up a master switch unit (the door unit with all window switches and lock switch) at a local junkyard. No change.
SO.... I'm stumped. New motor, switch, relay.... what else is there?