Power window passenger side not working
 

My 2001 MPV had intermittent function on the front passenger side window for a few months, then the window only could be controlled from the drivers side master switch, now it only goes "up" will not roll down via either switch. I've replaced the switch in the passenger door, but still have same problem. I can get the window to roll up and down by removing passenger side switch and jumping the proper terminals together at the plug. Help?