At the moment, I think the problem is the master switch? Check the hinge side of rear door, wiring harness. Black wire with blue tracer is voltage for power window, hot/voltage with the key on. Note diagram below. At the rear window switch, the wires on either side of the wire just mentioned are grounds, one ground for up, the other ground for down.
Sunday, September 4th, 2011 AT 5:39 PM