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Drivers Power Window Not Working...

uglytruk

uglytruk

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So I picked up the Texas Sub tonite, and the drivers window is open 2". It doesn't budge or make a sound, the others work from the quad button, so it has power. I tried pounding on it, etc... I'll pull the switch tomorrow, but could it be the motor?

How does one test? I guess I'll prod for power...
 
Take the door panel off and check the ground from the window motor first:D

Then pull the power wire and hook up your meter to the wire and check for power. If no power then begin tracing your power wire back to the quad button. There should be 2 power wires, one for up and one for down so check both.

Since it doesn't go up or down I'm guessing it's the ground.;)
 
Isn't it grounded by mechanical/riveted connection? Maybe it's the motor.

Electrical troubleshooting is a weak area for me... I do OK in 110 volt...

I have a little gizmo that lets you pierce the wires without piercing your finger!
I have a feeling it's the switch, but usually it'll work if ya press really hard...

It's raining and 33f. Global Warming? Drought? Hah!!! Ug
 
So think of it as 110v D.C.;) I think you need more info on the concept. There is AC & DC. Both can work with 2 wires, or paths, for current. We really aren't concerned with voltage for your problem other than to say 12v is usually an automotive DC mode and 110v is a common "household" AC current.

We are concerned with just the 2 wires, or paths, for current. A positive path and a negative path. Don't think too much on AC, DC, or volts. Just 2 paths. In automotive use one of the paths is the frame or metal housings and at places a wire. The other path will be a wire. For your vehicle the negative path, or ground, is the frame & housings. The positive is a wire.

So it's called 12v DC negative ground but the concern is with the 2 paths to complete a circuit.

IIRC, there is a connection, or plug, on the motor with 2 wires in it. Disconnect the plug and test for continuity between the wires in the plug and then continuity in the connector on the motor. There shouldn't be any.

Run a wire directly off the negative battery terminal to the body of the window motor. Then run a second wire off the positive side of the battery and briefly touch it to one of the two connections inside the plug. The motor should run. Touch the other side of the connection and the motor should run backwards. If the motor doesn't run at all it's probably toast and needs to be replaced. If it runs in one direction but not the other look for obvious breaks in the wiring but you'll probably need to replace it.

If it runs in both directions then check & clean the connections between the quad button and motor.

Report back with what you find:D

If you think it's the switch then give it a good cleaning and see if it works.
 
BKinzey said:
So think of it as 110v D.C.;) I think you need more info on the concept. There is AC & DC. Both can work with 2 wires, or paths, for current. We really aren't concerned with voltage for your problem other than to say 12v is usually an automotive DC mode and 110v is a common "household" AC current.

We are concerned with just the 2 wires, or paths, for current. A positive path and a negative path. Don't think too much on AC, DC, or volts. Just 2 paths. In automotive use one of the paths is the frame or metal housings and at places a wire. The other path will be a wire. For your vehicle the negative path, or ground, is the frame & housings. The positive is a wire.

So it's called 12v DC negative ground but the concern is with the 2 paths to complete a circuit.

IIRC, there is a connection, or plug, on the motor with 2 wires in it. Disconnect the plug and test for continuity between the wires in the plug and then continuity in the connector on the motor. There shouldn't be any.

Run a wire directly off the negative battery terminal to the body of the window motor. Then run a second wire off the positive side of the battery and briefly touch it to one of the two connections inside the plug. The motor should run. Touch the other side of the connection and the motor should run backwards. If the motor doesn't run at all it's probably toast and needs to be replaced. If it runs in one direction but not the other look for obvious breaks in the wiring but you'll probably need to replace it.

If it runs in both directions then check & clean the connections between the quad button and motor.

Report back with what you find:D

If you think it's the switch then give it a good cleaning and see if it works.
Click to expand...

The GM at least has a relay system at the driver door and there are only 2 wires to the motor that get switched for up and down, no ground to the body on that one, the wires are switched negative positive and vice versa for up and down.
I have the same problem now on one of my burbs, I don;t have time to mess with it but it's closed so I don;t have to worry about it. :D
Start with direct power to rule out the motor then work your way to other items like bypassing the switch and leave the wires to last since replacing parts is easier than replacing the wiring.
:rolleyes:
 
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