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Power window stumper

pbrumfield2007

New member
(13 years owned) 1996 SE
The windows stop working- then they work. Finally they stopped all together.

1.) Power (+12v) exists at the brown wire from the circuit breaker. (Good)

2.) Black does not read continuity to ground (if that is ground) This wire is unidentified (not on schematic) and I tried this wire to ground with no effect.

3.) I can attach 12v to each motor and operate (no problem)

4.) There is another brown wire that is unidentified (not on my schematic)
This brown wire on 1995 F-body show this wire going to the coolant level sensor- and I say why? I assume a feed?

5.) When I press the switch the (illumination) light comes on- but no window

6.) New switch purchased still no window!
 
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I bang my switch sometimes and it works.

then a month later it i will stop working...

bang it again.. good to go..

could be a switch, motor, fuse, bad ground.
 
Thanks but the switch is new, circuit breaker is good 12v present (does not drop out when switch is depressed and the motor and wiring checks good (all work manually applying the +-12v from my cig lighter power)
 
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