The rear passenger window will not roll up.

How about when the radio is on & the key is off or
in your hand,if you open either front door does the radio go off
& do you lose the delayed window feature assuming you have that
If so you problem is a delayed accy relay
Next would be the front door switches
I will give you credit for what you tried
but fail to see why you would switch motor
from door to door,they work powered directly or they don't
I would think your battery would have gone dead by now
if the relay failed to time out or go to sleep

It sounds like it could be the window solenoid, or the window motor. It's unlikely the switches on both doors are bad. Check the solenoids and motors...

blewed fuse or bad connection or need a new motor

Most probably motor. Have someone push button while u hold ear to inside door and listen for motor to try and run.

Most time shot in dark as most will not make noise but sometimes you will hear a click letting you know that power is at least getting to motor.

check your fuses and when you open the doors there is a rubber tube and the wires pass open the tube and check for broken wirws when doors open and close

It could be ether a wire problem window motor problem or its jamming up when its all the way down i have a similer problem with my passenger window on my two door blazer it works fine if i keep it up sOme but if i put it down all the way i have to take the door panle off and pry it up.

Have you tried the child locks on the doors?

it is probably the lock out switch or if your vehicle is equipped there is a child lockout switch on the door frame, open the door and look at the side of the door where the lock hits the frame and you may see a black button which locks the window control out

definatly no fuse try and swap the rear window swithes over and see if the other window works with that switch but my guess is that it is the regulator in the door not the motor ,that is the cablr that the motor wind up and down open the door cover and have a look at it

I had the same problem with now power to windows, mirrors and seat. The common soulution is the orange and or black wire in the boot have broken between the door and post.