You pay hundreds of dollars at a dealership
Not sure if it's OK to mention another site, but a very helpful post appears to be located at http://car-repair.wikia.com/wiki/Toyota_Sienna
If it in the same place as the 2004; it is behind the glove box; you should be able to remove the entire glove box and should the cover for the cabin air filter behind it. Below this is the blower...
Completely remove the inside door panel. Since the window is down, the two screws that hold the window glass to the regulator should be easily acessable. Remove these two screws. Disconnect the...
Car window motor replacement.
Just did this on 1998 sienna - worth the effort - saved $300 in dealer charges. Recommend ordering new motor from AutoZone or other local auto store. Just tell them...
There is only one fuse for all power windows. If only the passenger side window does not work, the problem is either with the passenger window switch or the motor on that window.