The 2000–2002 Pontiac Sunfire is a sedan model.

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What would cause all of the power windows to not work.

I bought a 4dr 2002 Pontiac sunfire.All of the power windows don't go up or down.I bought a master control assembly which goes in the center consol but that 's not the problem.

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@firehouse66, John, You should perhaps replace the Power Windows/ Sunroof (Circuit Breaker) as it may be faulty, see pic. below for location. Still no go, replacement master control assembly still could be faulty or not plugged securely, recheck connections/test switch. Still no go, time to remove the door panel and test the power and ground to the window motor. No power to motor there could be a break in the wire harness between door jamb and door frame(quite common), peel back wrapping/harness sleeve and inspect for pinched/broken wires. All looks good there, then remove driver side kick panel as I believe there is a pwr. window harness plug there that may be corroded and in need of a good cleaning. If you do have power to the motor, then the window motor is faulty, I know what you are thinking all pwr. window motors faulty(it could happen), but unusual, do check for power at motor plug and clean if corroded and retry before replacing pwr/w motor. Links below may help in trouble shooting/testing/door panel removal to access wiring/plugs/motor, etc.. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.

http://www.agcoauto.com/content/news/p2_...

https://www.youtube.com/watch?v=0Le7cKCh...

http://ricksfreeautorepairadvice.com/tes...

http://www.justanswer.com/pontiac/2kc28-...

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@firehouse 66 since this vehicle doesn't have a window relay or any relay in line for the window operations and you already replaced the master window switch, the fault must be in the wiring. Time to get your meter out and do some checking from the main fuse block.

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This quick and dirty manual will tell you more about the color coded wires you have in every harness. Hope it'll come in handy for your job.....PONTIAC-SUNFIRE-1995-2005-pdf-(1).pdf

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john chaney will be eternally grateful.
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