ok my buddy has a 98 chevy malibu and the drivers side door (electric windows) rolled down 6-8 inches after hitting a speed bump and will not roll back up... he says the switch is defunct... i am suppose to look at it and see if its the switch, wiring, or motor... can anyone tell me what specifically to look for i do have a digital voltemeter... what settings should i use? and any way to bypass the switch to make sure the motor works? and to see if switch is bad?
dad has a caprice and it was the track. stupid rollers in the tracks get flat sides. least thats what hppened in his might be different
Very true. With eveything very quiet in your shop (key in ACC position) push the switch and listen for the motor grinding aginst the stripped track. If you hear the motor working, usually the electronis are fine and the plastic track has to be replaced.
To test if the switch or motor is at fault, measure for voltage at the motor while holding the switch (there will be three wires fwd, rev, and ground). If that fails jump 12V to the motor to test it.
Most GM proucts have the window physically bolted to the carrier, so the glass usually doesn;t slip out of the glued on clip, like most fords.
don't forget to check teh amperage too.
ok thank you all...... i will do that