Power window Buick
At witts end here on my 02 Buck Century, drivers side rear window wont roll down all other windows work . Wont roll down from master switch (front drivers side)works all other windows .Got new motor / regulator swapped it out same problem ,swapped door switch out to other side same thing no roll up on drivers rear. allso old and new motors swapped over and still wont work on drivers side. Have swapped relays around and have power all the way to motor WTH am I missing here :devil:
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Re: Power window Buick
Wires sometimes break where they run through the door.
They may not appear to be broken because the insulation is still intact. |
Re: Power window Buick
I got power all the way to motor on the old and new motor sand they both check out with test light.
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Re: Power window Buick
Have you plugged the old regulator in (Outside of the door)?
Just to see what happens. |
Re: Power window Buick
Yes it rolls up and not down on both new and old reg /mmotor will go up and down on pass. Side
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Re: Power window Buick
1 Attachment(s)
I found a wiring diagram online.
That is the best picture I can get. :uhmk: Attachment 2345366 So you have both up and down wires that have 12 volts? |
Re: Power window Buick
Yes sir 12 volts all the way to motor
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Re: Power window Buick
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An LED bulbed test light will not work for this test. You have to use one that has an incandescent bulb in it. |
Re: Power window Buick
Ok did that light works on the up side but not on the window down ,
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Re: Power window Buick
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I neglected to add the workings of the Motor with 2 wires and that one is (Power up) and the other is (Power down). I was working on a remodel of my Kitchen. ;) And sneaking in to keep up on the Forum. :metal: Quote:
The regulator grounds thru the mounting screws. These newer Vehicles are not as simple as our 63 Impala's :metal: |
Re: Power window Buick
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@kaycee... Since you have substituted known good switches, I think you have an open circuit in the wiring.. Most probable location is inside the boot that houses the wiring as it passes from the door post into the door. If you want to learn how the circuit works, send me a private message, and I'll be glad to send you the GM Factory generated troubleshooting guide for power windows. It is a step-by-step procedure and if followed precisely, it will guide you to the problem.. |
Re: Power window Buick
Well crap , I was thinking that must be how the switch operates appreciate all the help and advice. I’m still trying to figure out how to work my multi meter and pinpoint electrical problems a little better, maybe the step by step will help.Again Thanks for the Help
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Re: Power window Buick
Well crap , I was thinking that must be how the switch operates appreciate all the help and advice. I’m still trying to figure out how to work my multi meter and pinpoint electrical problems a little better, maybe the step by step will help.Again Thanks for the Help
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Re: Power window Buick
So I could get a set of jumper wires and go from master switch back to door switch and see if that is broke between the 2 before I pull all that apart in the B pillar Correct ? Im going to go to recess for a day or 2
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Re: Power window Buick
I'm reading the posts and don't see where you've replaced the master switch. If that's so, go to your master switch. find the dark green wire and the purple wire. apply +12v to one and ground to the other. The driver's side rear window should go up or down if the rest of the circuitry is good. now reverse the jumper wires and the window should go the opposite way, up or down. You obviously have B+ and ground to the switch if the other windows work from the master switch. If you can control the window through those two wires from the master switch it almost has to be a bad master switch. Which is usually the culprit,(most used) that and the wiring going from the door to the body on the drivers side(most used). Hope this helps.
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Re: Power window Buick
Yes master was charged a couple months ago devs front switch was wore out so replaced it .The master wont operate the rear drvs either ,but will try that.
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