Power windows

Joined: 8:20 AM - Feb 16, 2017

10:19 PM - May 30, 2017 #1

Hi Guys,
Been a while, oh my, deliver & pick up grandkids to & from school & the day has gone.

My power windows have suddenly stopped working.
Fuse is OK, jury wired the drivers door & the motor works ok, so it seems to be electrical fault of some kind?

I removed the drivers switch & tried the second (passengers) switch, no go. Removed & cleaned the lock switch, it seems fine?

Using the multi meter on the drivers cable connection (to the motor) shows 12v when the switch is activated (up & down)

I have a set of manuals, but there is little info on the 71 Mustang.

Advice Please.
Cheers
Brent
Last edited by BrentDThorp on 10:20 PM - May 30, 2017, edited 1 time in total.
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rich p
rich p

3:55 PM - Jun 03, 2017 #2

the pw safety relay is mounted at the rear of drivers side shock tower. check for power/operation there...jump..etc.
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rich
rich

10:40 PM - Jun 05, 2017 #3

one side of the motor wire get 12v while the other wire gets ground. the switch just reverses the polarity, for up or down. since you show power, the relay i mentioned is working. check if you have a ground at one of the motor wires, while you have power on the other wire.
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Joined: 8:20 AM - Feb 16, 2017

5:56 AM - Jun 07, 2017 #4

Thank you Rich, the relay seems at fault, than goodness.
I was able to work the windows by jumping the relay.

None in Australia even though the common part was a Fairlane, the model has just finished here.

I located one at MAC's. Now waiting patiently, I have just replaced the air con compressor, so that is helping with the ventilation.
Thanks again.
Brent
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Joined: 8:20 AM - Feb 16, 2017

9:38 PM - Jun 20, 2017 #5

Now I find my relay is OK just a bad earth!!!!
So if any member needs a power window relay, I have one
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