Ground for window switches

[Mike Arman <armanmik@n-jcenter.com>]

>William J Murin <murin@uwp.edu>
>Subject: Ground for window switches
>
>Colleagues:
>
>Couple of days ago my 89 100q developed a new electrical gremlin.
>
>For no readily apparent reason all window switches and the sunroof switch
>decide to become inoperative at the same time.  Monkey about with the
>control panel on the driver's armrest a bit & they will work for a bit.
>
>Even when the windows and sunroof is inoperative the power mirros still
>work & they too are located on the armrest panel.
>
>My first guess is that the problem is a loose or bad ground somewhere in
>the door.  But I cannot figure out why it affects the sunroof.
>
>For those of you who have BTDT, any clues as to what I'm looking at and
>where to look?
>

Funny you should ask . . .

Last week on my 5KCDqt, all the windows and the sunroof stopped working.
After much cussing and parts swapping, it turned out to be a tired
connector to the window and sunroof control relay (either postion 4 or 5 in
the relay panel above your left knee).

Discovered it by removing the relay socket from the holder to check
voltages and plugging the relay into the socket . . . worked fine,
reinstalled socket into carrier, plugged relay back in, no go. Cure was
remove socket, bend contacts for better tension and better contact with
relay pins, reassemble.

Best Regards,

Mike Arman