The 2000+ is all electronic control and motorized actuators, no vacuum. This could be a lot of things (a bad position sensor, a bad actuator motor, a bad climate control head - although this one is unlikely from what you state). It'* possible that even something fell into the defrost vents and is now blocking the air mix or other door.
With a Tech 2 it'* possible to check the sensors and door travel to get a better idea of where the problem is. Since yours has the dual climate control, it'* going to be an even more complicated unit.
I know this doesn't help you fix the problem, but it does answer your original question. Whatever the problem, it should be repairable. The issue becomes how far apart you have to take it. This may not be an easy fix.
StingRay Bike w/cards in the spokes, Weeeeeee!
Last edited by ddalder; 01-16-2009 at 02:11 PM.