onionpatchkid

I've exhausted the brains of all my 928 buddies and still don't have the answer. The passenger window has been intermittent with the switch for around 6 months and finally quit. I've taken things all apart and spent 4 hours troubleshooting but haven't fixed it. This is what I know:
The passenger switch does not raise or lower the window. The drivers side works fine.
When I disconnect the 2 connectors in the console and switch them, the drivers switch will not make the passenger window work. The passenger switch will make the drivers window work. It's not the switches.
I have 12 volts on the passenger switch and at the cord connector. Jumping between the terminals at the connector does not make the window work.
I have continuity from the connector to the fuse panel on all 4 wires so the wires are good to the panel.
I installed a spare relay and the same problem persists. It's not the relay.
I cannot find the wires at the panel that start heading to the door.
I did find the wires that go from the door motor to a connector under the glove box. I have continuity so the wires are good from the motor to this connector.
The motor does go up and down. I disconnected the leads to the car and used a spare car battery and the window motor does work up and down.
All I can think now is to pull the fuse panel loose and look at all the connections in the back to see if something is burned or loose.
Any ideas???

onionpatchkid

1 weird thing though is the passenger window gets its power from an 8 amp fuse marked "sunroof". I don't have a sunroof. The drivers door gets its power from a 25 amp fuse that also powers the relay. Is it possible there are 2 relays for the 2 windows? Or are they shared? My schematic only indicates 1 relay for the power windows. It does not indicate that fuse #8 is for the passenger window but it is because I blew it when I was trying to jumper things.

Petza914

My '79 owners manual shows only relay #6 and only fuse #21 (25A) for the Power Windows

onionpatchkid

That's what mine says too but when I pull the sunroof fuse, the passenger switch has no power but the drivers side still works. Weird...

linderpat

What does your CE panel look like? Any after market alarms, radar detectors etc wired in? What about an aftermarket radio? These things are often tied in in funky ways that screw up the wiring for other components. Post a pic of the CE panel.

onionpatchkid

Great question. A year ago I added a new alarm, stereo upgrade, blue tooth, USB ports, auto door locks, subwoofer. I'm not sure where they picked power up for those items.

linderpat

You will likely need to start tracing to find out where the breach and hack is. Could get messy. Get the wiring diagrams if you can, from Vol 9 of the WSM (in color, full size). Roger may have copies of them to sell.