Front passenger window not working

The master window/lock switch works for all windows except for the front passenger window. However, the door lock switch works from master switch and front passenger door lock switch. If I take the master windows/door lock switch out and plug it in to front passenger side and press the button for driver side window, the window works up and down but also keeps the dome light on as if it's hooked up to battery directly and won't shut off until I unplug the master switch from the front passenger side. I'm not sure what the problem could be. Please advise.