I now have a 2001 cherokee sport and all the windows work from their own switch except the front passenger window which only works from the driver side switch. The small light on the switch is lit up though? What could it be

 

Same issue in my 98. Never got around to to diagnosing it yet. Figured I'd get to it when I replace the speakers and mirror. Chrylser switches are pretty notorious for corrosion on the switch contacts. My first guess.