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Re: Passenger side window goes down on it's own.
You need to replace the window winder unit. not the electronic switch but the motor/pully system which rolls the window up and down. if u can get the door panel off, you can replace it yourself for around $120, or you can macgyver a fix, without bying new parts. look for a loose cable on the winder unit, thats what will tell u that the winder unit is bad.
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Reads like it is a problem for an auto electrician or someone with access to the vehicles wiring diagram - presumably at some point two circuits are crossing. More likely if it is a modern car, it maybe a bit of computerised hardware that needs a fix or replacement.
There could be a lock controller somewhere that is not working. I don't have a wiring diagram for your truck.
Generally, the power window motors are grounded thru the doors, or the switches provide ground. In your case the motors are probably grounded thru the doors. The master switch "overrides" the door switch so you have extra wires that do the same thing. The E wire probably gives the door switch power and the A and C are up and down. The B and D are override circuits from the master that bypass the door switch. Sometimes the motor is grounded thru the switch then thru the door.
Is it TRYING to go up but can't? You could have high resistance in the ground circuit to the passenger switch. It takes a LOT less power to move the window down than it does to make it go up. There mak be good enough ground to the switch to make it go down, bt not up.
Since it works from the driver's door, this pretty much eliminates the B+ circits and the grounds for the driver's switch. Since the passenger switch itself has been replaced twice, I would think that eliminates the switch itself as the cause. The ground circuit to the passenger switch is the only thing left.
This theory can be easilly verified by running a jumper from Pin "J" BLACK wire at the passenger switch t the battery negative post. If the window now goes up and down from the passenger switch, the ground circuit needs to be repaired.
Both of those are controlled by the Passenger Side Door Module inside the door itself. It is necessary to read the data from your Body Control Module (BCM) to properly diagnose the cause of the failure.
sounds like an open power or ground circuit on passenger side,since the door lock and the window,lost its functioning.Both switches would have to be bad at the same time,which is not probable, to be the fault. Unless there is a saftey lock out switch on the drivers panel,controling the passenger side door lock and window.
You may have inadvertantly locked the passenger windows by pressing the little button to the right of the door locks (on the driver side). It's a push to lock/push again to unlock type button, so try pushing it--if it stays down, then that wasn't the problem. If it comes up, then try the window. I hope that helps