If the blower only has flow on the passenger side, chack all settings and feel for air at defrost and panel settings, this is most likly a door frozen in the heater plenum, or a bad servo, that's the unit that operates the door!
December, 14, 2007 AT 5:37 PM
It is blowing cold air from driver side.
December, 14, 2007 AT 6:18 PM
OK sounds like the dual system, without having the benefit of the scanner and resulting codes, I think the temp blend door on your side is stuck, or the ambient temp sensor on your side is no good.
Look under the das at the heater plenum, see if the servo opens and closes the blend door. If there is no movement, disconnect the servo, see if you can move the lever by hand, it should move easily! If you need to get a can of white lithium spray, and see if you can lube it, then work it till it frees up.