power windows


Asked by Dec 22, 2009 at 09:21 PM about the 1999 Pontiac Grand Prix 2 Dr GT Coupe

Question type: Maintenance & Repair

I have had periodic problems with the windows every since I bought this car, but lately the drivers side window wouldn't work.  Recently the window worked just long enough to go down, but now won't go up.  Anyone know how to fix it?

7 Answers

Adam Rolland

same thing happened to me, first i'd start off by unplugging your window switch from the door. then use this diagram http://theblattners.com/pics/_automotive/_wiringdiagrams/98GP_2Door_PowerWindows.jpg try to jump the wires manually and see if the window will go up/down if it does you've got a bad switch if it doesent you have a bad window motor. thats more or less it.

25 out of 25 people think this is helpful.
Adam Rolland

btw: Grounding the Brown wire and juming Dark Blue wire to 12 volts should raise the window if the motor is OK. Just make sure the switch is unplugged when you do this or you'll short the 12 volt ckt to ground.

14 out of 14 people think this is helpful.

it is ur window motor. just got mine up. take off the door panel. thier are 3 screws that hold the motor in the door. take them out and pull the motor out as far as it will go. on the motor casing their are 4 small screws. take them off and their will be a blue spindle that turns. u can turn i by hand or us a cordless drill to turn it. hope it works out for u. this is a one time fix i think. pulled the plug for the windows.

6 out of 6 people think this is helpful.
Chase Stenson

this totally worked for us! Thank you soo much! We need a new motor for sure, but at least the window is up now!

Keith Nation

I bought 3 power window switches for my 1994 pontiac Grand prix and on all the pin configuration is different is there a new wiring configuration I need to do if so what is it

3 out of 3 people think this is helpful.
Silver Crow

Mark the 95 and older switch wires with the letters A thru F with a piece of tape. The markings(letters) are on the connector body. Remove the two holders from each egge of the connector. Use a tiny screw driver or dentle type pick to run up on the inside edge of each wire and bend in the tab holding it into the connector. unbend the tab after you remove it. reinstall the wires according to the following list: A.Dark Blue into E B. Gray into D C. Tan into B D. Brown into H E. Brown into A F. black into G G. Lt Blue into F reinstall the two wireing holders into the connector. put the connector back on the new switch. test it.

3 out of 3 people think this is helpful.
Msfree Andrus

Thank you so much this was awesome simple and we did it on the first try.

3 out of 3 people think this is helpful.

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