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fireguyfire's Avatar
 
Join Date: Sep 2016
Location: Western Canada
Posts: 161
power windows troubleshooting

Was out for a rip in the 76 911 the other day and both my drivers and passenger power windows lost power and stopped working, and of course it stopped working with the drivers window down and we are having crappy weather this week!
Want to get out and trouble shoot it today or tomorrow; I am assuming the 2 likely culprits would be a fuse or the drivers switch? The drivers switch is new and I made sure all of the wiring was good when I pulled the door panels off and rebuilt them last winter.
Is there a fuse just for the power windows?
I had a quick look with a flashlight and didn't notice a bad fuse but that was a real quick glance as I was in a rush.
Any tips on trouble shooting would be great so I can get the drivers window back up!!

Old 09-22-2017, 06:53 AM
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86 911 Targa's Avatar
 
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Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
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Windows.

Quote:
Originally Posted by fireguyfire View Post
Was out for a rip in the 76 911 the other day and both my drivers and passenger power windows lost power and stopped working, and of course it stopped working with the drivers window down and we are having crappy weather this week!
Want to get out and trouble shoot it today or tomorrow; I am assuming the 2 likely culprits would be a fuse or the drivers switch? The drivers switch is new and I made sure all of the wiring was good when I pulled the door panels off and rebuilt them last winter.
Is there a fuse just for the power windows?
I had a quick look with a flashlight and didn't notice a bad fuse but that was a real quick glance as I was in a rush.
Any tips on trouble shooting would be great so I can get the drivers window back up!!
Just go ahead and replace the P/W fuse #1 after cleaning the fuse holder.

If that does not resolve the issue pull the driver's side passenger window switch,
and check those connections.

The 12V goes to that switch, then to the other switches.

Good luck,

Gerry
__________________
1986 911 Targa.
Per Road and Track magazine:
Only in L.A.:
In the window of a bar in Hermosa Beach, California.
"Happy Hour prices during all car chases."
Old 09-22-2017, 07:21 AM
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Thanks Gerry, that's what I was figuring.
Is fuse #1 closest to the firewall?


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Old 09-22-2017, 08:14 AM
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^^^^^
The fuses should be identified inside the fuse panel cover.

pm me as needed.

Gerry

__________________
1986 911 Targa.
Per Road and Track magazine:
Only in L.A.:
In the window of a bar in Hermosa Beach, California.
"Happy Hour prices during all car chases."

Last edited by 86 911 Targa; 09-22-2017 at 02:05 PM..
Old 09-22-2017, 01:56 PM
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