1988 740 Electric Windows

I have a problem from time to time when the electric windows will not work.
They will not work from the drivers or passengers door console however when
the windows are not working the driver and passenger door mirrors still will
work.

As the fault is in both doors then I assume the problem is somewhere other
than inside the doors.

 

All the power for all windows first goes in the driver's door, through
the switches there, then out to the other doors. So a problem in the
driver's door can affect all windows. Look at the harness where it
flexes as the door opens and closes.

--
Mike F.
Thornhill (near Toronto), Ont.

NOTE: new address!!
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)