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2001 Oldsmobile Silhouette GL 4dr

2001 Oldsmobile Silhouette
Trim Info:
Front Wheel Drive, 4 Door Ext WB, 2WD Minivans
19 mpg city / 26 mpg hwy
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May 3, 2012, 10:26 am

Mark T
 

Question: power window motor will not go up, tried 4

I am getting good signal strength from all the wires going up and going down. I have tried 4 motors and one new one, yet all of them the gear won't turn for the raise direction. As I said, the indicator light from all the wires are reading going up and going down. It was suggested since I am getting a signal for the indicator light, maybe the current isn't strong enough to turn the motor, could be a ground problem. I have no Idea even where the main ground is, and let alone all 12 (or so) is throughout the vehicle


May 9, 2012, 5:33 am

Elizabeth K
Expert Mechanic

Test your power window motor by hooking up jumper wires to it for power and ground directly from your battery. If it doesn't work, then find one that does.

If the motor is OK, then check that the circuit is working. You didn't indicate what you used to check the circuit, but it sounds like you're using a test light. You don't need to know the location of the ground connection to test it, but using a multimeter is easier than a test light. When the switch is on, you need to have power and ground for each direction (but right now getting it for at least one direction would be good enough). You can test for the connection to ground by checking for continuity with an ohmmeter, but if you only have a test light, hook the clip up to the battery and probe the wires with the needle end. The bulb will light up when you've got a ground connection.

A wiring diagram will make the job easier, sometimes they can be found if you hunt for them online, otherwise you'll have to buy a manual. If the ground connection is your problem, you only have one to find.

Also, you didn't say whether all your windows were inop, or just one. That would make a difference in how the troubleshooting is approached.


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