[pfarah]

I had the same problem last year. Right above the reference sensors, you'll see the heat control valve, with a plastic arm. Carefully remove the metal cable clip that secures the control cable (I dropped mine which landed on the starter motor, hence, the car had to be lifted for retrieval), then, as Slam suggests, the center console may have to come out. However; try this before removing the console; remove the ash tray and you'll see two (10 or 12mm) bolts, remove the driver's side one as well as a couple of Phillip head screws on the left side console carpeted panel. If your car has the black cover (just to the left of the center console, a couple few inches from where your right knee rests while driving), that will have to come off. You should see the control cable and may be able to remove the second metal clip and manipulate the cable end off the switch lever. Then, simply pull the entire cable through the fire wall and inspect for damage (bends, cinks, etc.). Apply a good cale lubricant and move the inner cable wire back and forth many times to distribute the oil. It worked very well for me; I may have a couple of pictures for you if you want, just PM me.

Patrick