Power window systems are fairly easy to troubleshot, if you know the basics of how they work
12vDC motor is reversible, has 2 wires, one is 12v the other a ground motor turns clockwise, reverse it so one wire is ground and the other 12v and motor turns counter clock wise, window up/window down
Everything is Grounded when power windows are not in use
There is only ONE GROUND WIRE for all the windows, it is on drivers door master switch, ground is behind driver side kick panel
The switches ground BOTH motor wires when not in use, buttons not pressed
Test for that by unplugging the motor's 2 wire connector
If one wire is not grounded then switch is bad
So window can only work in one direction
When you press a button that contact is disconnected from Ground and connected to 12v, motor turns, because other wire is still a ground
Passenger side window switch is Grounded by 2 wires from master switch, 1 wire for each passenger side motor wire
When you press a button on master the same thing happens, one wire is unGrounded and connected to 12v so motor turns using the 12v from master switch
Passenger side switch has its own 12v wire, not from master but from the same relay, so it can work on its own, but its grounded at master
That's the basics
Test for one 12v wire at each switch, power is OK
Test grounds at motor, both wires grounded, switches OK.....most likely
You can test the 2 motor wires for 12v or -12v when you press its 2 buttons, ground and 12v, switch is OK for sure
Yes the one touch down or up can be the problem. if wiring tests as OK
In 1995-2003 thats in the GEM, but external relay
In 2004-2011 its in the SJB, I think its all internal relays so not serviceable
Switches in door panels are really the only parts that can "wear out" so most likely to be the problem
And of couse a 12vDC motor can fail, but not just for one direction
And as said a window can get jammed at the top or bottom, so motor doesn't have enough torque to move it, each motor has a Thermal Limiter inside it, Limiter will "open" if too many amps are pulled thru it, so motor has limited torque, it can't break the window, lol
Open door panel see if you can assist the unworking direction of travel