2004 Gr. Cherokee- Rear Passenger Side Window

RP window will not respond to driver controls. RP window will go down by using RP controls but WILL NOT GO UP. Suggestions?

When a power assisted window will not wind UP, the cause is usually due to a broken regulator or corroded wiring at the motor.

The drivers door armrest window control switch is at fault SOMETIMES due to moisture dripping in when window open during a rain.