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Join Date: Jul 2006
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Hot wiring window switches?

It's sunny out, took my sunroof off, started rolling down my windows -- CRAP! I forgot that I blew up some switches, I think?

I distinctly remembering finding out that one of these switches was dead, so I switched them a couple days ago. Needless to say I can't get the passenger window down.

I noticed a wiring diagram on the side of the switch, but I was always surfing porsche pics throughout my electronics class :surr:

Which pins do I need to jumper to get the window to roll down?
Roll up?

Thanks!
-poz

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Old 03-07-2007, 07:44 AM
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Oh boy! The window switch is a reversing switch. It reverses the polarity to the window regulator motor to change it's directions.

Soooo.... you need to have two wires; one from 12 volts and one from a ground (the door restraining strap works). Pull the switch out of the door and on the back of the plug pins 1 and 2 go to the window motor. Should be black and a black/white wire. I don't know if the pins are numbered. You may find one of the other pins hot with the key on. If so use it as your source of 12 volts.
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Old 03-07-2007, 11:37 AM
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AHHHH -- This is why I couldn't figure it out.

So if I was to test the harness, I could just take the 12v to pin 1 and ground to pin 2, and that would roll the window up (or down)

12v to pin 2 and ground to pin 1 would do the reverse?

Interesting...

Holy ****, how do you know all this stuff?

I bow

-Alex
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Old 03-07-2007, 12:34 PM
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Old 03-07-2007, 01:49 PM
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I've been a slave to my 83 since 1985. Basically beat up many more times than you have. One learns. Also being an automation engineer for over thirty years helps.

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Hugh - So Cal 83 944 Driver Person
NOT a 'real' Porsche -- Its Better!!!!
When was the last time you changed your timing and balance belts and/or cam chain and tensioner?
New Users please add your car's year and model to your signature line!
Never break more than you fix!
Old 03-07-2007, 02:05 PM
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