Power door electrical problem 960

[sasjzl]

I have a drivers side power door that has been working though sporadically. It has just stopped working now with the window up. Testing with a multimeter shows that the switch appears to be doing its thing by supplying voltage to one wire (I cannot remember the color) when the rocker switch is pushed down and to another wire when pushed up. I see the two wires going to the motor and the blue one gets voltage when I click the rocker switch to up. The other red wire is not showing any voltage. I am thinking this is for going down. Can someone tell me where the next logical place to check for voltage to this connector is? Wherever the connection is it must have been ok a few days ago. I have been taking the door panel on and off a million times since the window was working because of a mechanical door handle issue I am trying to figure out so I am thinking the problem is most likely in this drivers side door area that I am working in.
The other doors work fine. This is a 1996 960.

Thanks very much,
Jim Lee

[jest2525]

I assume you are referring to the power "window" operation.

You're probably overthinking your troubleshooting. My experience tells me that the internals of the switch are dirty. When that occured on mine I pulled the switch, CAREFULLY dismantled it only to discover the internal contacts covered in muck, kind of like "oily dirt". A quick WD40 cleaning, reassembly, and reinstall solved it for me. After you've successfully done one you may as well do the rest of them because at some point they wall all need it.

~ John

[sasjzl]

I will clean the switch but I thought that this would extract the switch from the problem:

"Testing with a multimeter shows that the switch appears to be doing its thing by supplying voltage to one wire (I cannot remember the color) when the rocker switch is pushed down and to another wire when pushed up."

Also I exchanged the switch with the passenger side switch which works fine on the passenger side.

Thanks,
Jim Lee