Power Windows

I have a 94 xj sport, the passenger side power windows switchs for the front and back doors dont work. The main switch that is on the drivers door will roll them down though. I have taken the door panel off checked all the wiring and pulled up the carpet and followed the wires back and cant see any problem. Does anyone else have this problem or has anyone had it and solved it out?

2 things come to mind. first the master witch can be faulty. or sometimes the wiring harness under the carpet under the drivers foot area tend to corrode and break over time.

I have the same problem in my 00 Sport. I've heard some people say it's a fault with the window lock button. That you might try taking the panel off and cleaning the connectors, or disabing the window lock altogether.