Here's the haps...
Here is the wiring diagram for the power windows on my truck.
Narrowing it down to JUST the driver's side window...
As you can see there is a blue with black wire, that has power when the ignition switch is on.
There is a black wire that is always ground.
There is a yellow wire that goes to the window motor.
And in the diagram, the other wire to the motor is red. But on my truck it is white with a black stripe.
Here is what and how I have tested so far...
Motor is very strong. Looks like it was replaced recently.
Continuity on the white with black, and the yellow, are both good. All the way from the switch to the motor.
Black is good for ground, always.
Blue with black only has power when the ign is on.
Motor works to roll down. Will not roll up.
Using test light...
ign on = power to blue/blk. Push switch... Power is now coming from yellow. Window is still not working.
On further testing, I have decided for now, that it is the switch.
Pulled the switch, the connections are pretty corroded on the side where ground would be in the up position.
I'll clean up all the connections, grease them, and put it back together.
But before I do that, I'll take the actual switch apart and well. Clean it grease it put it back together...
Now here is the question...
With the ignition off.
With my test light connected to power. (So if I touch it to a ground, it lights up.)
EVERY SINGLE WIRE on both of the windows switches lights the light.
So in other words, with the ignition switch off, every single wire, including the blue with black stripe... is a grond.
How can that be?
Here is the wiring diagram for the power windows on my truck.
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Narrowing it down to JUST the driver's side window...
As you can see there is a blue with black wire, that has power when the ignition switch is on.
There is a black wire that is always ground.
There is a yellow wire that goes to the window motor.
And in the diagram, the other wire to the motor is red. But on my truck it is white with a black stripe.
Here is what and how I have tested so far...
Motor is very strong. Looks like it was replaced recently.
Continuity on the white with black, and the yellow, are both good. All the way from the switch to the motor.
Black is good for ground, always.
Blue with black only has power when the ign is on.
Motor works to roll down. Will not roll up.
Using test light...
ign on = power to blue/blk. Push switch... Power is now coming from yellow. Window is still not working.
On further testing, I have decided for now, that it is the switch.
Pulled the switch, the connections are pretty corroded on the side where ground would be in the up position.
I'll clean up all the connections, grease them, and put it back together.
But before I do that, I'll take the actual switch apart and well. Clean it grease it put it back together...
Now here is the question...
With the ignition off.
With my test light connected to power. (So if I touch it to a ground, it lights up.)
EVERY SINGLE WIRE on both of the windows switches lights the light.
So in other words, with the ignition switch off, every single wire, including the blue with black stripe... is a grond.
How can that be?