Question about 2002 Chevrolet TrailBlazer

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2002 Trailblazer LTZ Passenger window comes down by itself !!!

2002 Trailblazer. Many electrical problems. The worst one being my passenger window comes down by itself! Sometimes a little at a time , and other times all the way. I can't put it up until it feels like going up. Can't be out if it starts raining and can't lock my vehicle up!!
Can anyone shed light on this ?????

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Check the wire harness that leads from the door into the vehicle, possible wiring problem at that point, if all is good there, it may be the body control module. If the other "electrical problems" are component related, it could all lead to the module.

Posted on Sep 10, 2009

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Posted on Jan 02, 2017

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Hi Ethel101
I think that what has happened with your vehicle, is that the master (driver control) switch has become defective....If you have a friend who is good with electronics you may be able to ask for help in getting it fixed....otherwise a new unit is needed.

Best regards

Johngee10

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