Question about 2002 Chevrolet Impala
Electric window went down on it's own and now it does not go up. Is it the switch or the motor
Either switch, motor or even the Window Control Relay. Before performing any tasks ensure that the GND (Neutral) exists everywher it's supposed to (motor & relay especially)
To check the motor itself, disconnect it from any wiring an measure if there's any resistance betveen motor connection pins. or when its disconnected force some 12 volts to the motor and it will move up or down if it's fine. If it moves then go to the switch, and using multimeter measure if there comes 12volts. if it does check if it goes out from the switch when pressed. If it does, and you've already tested the motor and it was ok so the problematic is Relay (might be open circuit, defective soldering on the relay's circuit board). f nothing comes out from the switch just replace it.
If you need any further assistance just let me know.
Best of luck
Posted on Jun 26, 2009
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Posted on Jan 02, 2017
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