I lowered the passenger side window on my 2004 today and it would not go back up. There was no pop and I heard no motor or grinding noises. I tried both drivers side and passenger switches and neither worked so I'm guessing I can rule out them as the problem.....Long story short after searching this forum I read that some people needed to hold down the switch for a period of time and it occasionally works so I gave it a try. Held it down on passenger/drivers, locked, unlocked, essentially just kept pressing buttons. I don't know that any of this made any difference but at some point I walked back to the drivers side and when I pushed up it went up. I'm leaving it at that for now but any ideas based on this information as to what it could be? Motor, Resistor, something else?