Tahoe Power Window no workie.......need advice please ----what next?
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Joined: Jul 2011
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Tahoe Power Window no workie.......need advice please ----what next?
Hi, I have a 2004 Z71 Tahoe and for a while now, my drivers door window (all the others are fine) would work most of the time, but once in a while it would just stop working. Now its doa.....thank God its stuck up!!! Anyhow, I pulled off the door panel and took apart the switch and cleaned the contacts, and it didnt help. The plugs are nice and tight, no water or ever got into the switch. All 3 other windows work just fine from their own switch OR the drivers master. I unplugged the motor and checked for power on both leads (up and down) when I work the drivers window switch and nothing. The other doors have power at the motor (obviously) when the respective button is pushed up or down. This leads me to believe that its the switch, but I dont want to plop down 120 bucks on a used switch on EBAY before I know for sure. I dont have a scematiic for the switch or wiring.
What I DID do was supply 12v power directly (25amp fuse) into the power window motor plugs (seperately) and the window did not go up or down.....which makes me scratch my head as to the motor having a problem....but what are the chances that both the mtor AND the switch went bad at the same time? Not likely. So, does anyone have any suggestions on what to do next? Which colored wires on the switch is for the drivers door window up and down so I can check the switch for output power to the motor? Is there seperate fuses for each individual window? I checked under the dash and under the hood and couldnt find seperate fuses for the individual doors, just one relay under the hood.
Any help would be greatly appreciated!!!!
Steven
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What I DID do was supply 12v power directly (25amp fuse) into the power window motor plugs (seperately) and the window did not go up or down.....which makes me scratch my head as to the motor having a problem....but what are the chances that both the mtor AND the switch went bad at the same time? Not likely. So, does anyone have any suggestions on what to do next? Which colored wires on the switch is for the drivers door window up and down so I can check the switch for output power to the motor? Is there seperate fuses for each individual window? I checked under the dash and under the hood and couldnt find seperate fuses for the individual doors, just one relay under the hood.
Any help would be greatly appreciated!!!!
Steven
Last edited by Hunduh; Jul 30, 2011 at 8:59 PM.
CF Beginner
Joined: Aug 2011
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Steven,
How did you test the power at the motor connector? It should be one meter lead to one pin on the connector and the other to a metal ground. Then operate the switch in both directions. You should get +12 on one. Then move to the other pin and try that.
If you placed both meter leads on both pins, you'll get nothing or next to nothing.
How did you test the power at the motor connector? It should be one meter lead to one pin on the connector and the other to a metal ground. Then operate the switch in both directions. You should get +12 on one. Then move to the other pin and try that.
If you placed both meter leads on both pins, you'll get nothing or next to nothing.
CF Veteran
Joined: Aug 2010
Posts: 1,054
Likes: 5
From: New York City USA
TAke the motor out, apply 12v to it, reverse polarity and do it again. If the motor moves both directions, its good. if not its bad.
Put VM in the motor plug, hit switch both ways. If it reads battery voltage and reverse, negative battery voltage its good. if it doesnt, its bad.
Put VM in the motor plug, hit switch both ways. If it reads battery voltage and reverse, negative battery voltage its good. if it doesnt, its bad.
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