Have no power to the rear window and lock of only one door. 2004 Buick Rendezvous.
With my 2004 Rendezvous the power window and the power lock of the left rear door no longer work. All other doors and windows work correctly. The power window does not work either from the switch on the door itself or from the driver's master control switches. The window lock out switch is not activated. All other windows including the right rear door work from the driver's master control work. The power locks work on 3 doors from the driver's and front passenger's door switch. The other 3 door locks also work from the key fob.
I had first had problems with the power door lock, so I replaced the power door actuator to no avail. Took apart the black rubber cable housing running through the door and found no frayed or exposed wiring. I wiggled the wire connections also to no avail. Seems odd that power to both the lock and the window would be gone. I haven't had the time or not sure even how/where to put a voltage meter to check voltage. Fuses are ok. Could this possibly be a relay fuse? Never had one of those go on any car I've ever owned. Not really willing to pay dealer prices for labor and parts for them to hunt and peck, try and see.
Any suggestions for me? Help would be much appreciated. Thanks