AC air outlet direction problem

I just bought a 2006 Toyota Prius with only a 120k mi. on it. Nice car. It's like brand new. I have noticed though a problem with the direction of where the AC blows. It I put it on face only, it blows out of both face and feet. If I put it to face only and feet or just feet only, it blows out of only the face. Defrost doesn't work no matter what mode its in. Whether it in defrost or defrost and feet, it still only blows out of the face. I believe it the air outlet servo on the drivers side under the dash, but before I dig into that job, I wanted to verify my conclusion just a little bit. I know there's a way to put the AC in diagnostic mode by pressing and holding the AC auto and recirculation buttons on the steering wheel, but my recirculation button does not work. (I believe I need to replace the clock spring, is there are other buttons on the right side of the steering wheel that also do not work.) is there any other way to put the AC in diagnostic mode without using the physical recirculation button?

 

So are you saying that because the clock spring is bad, that there is a possibility that's why the servo motor doesn't work quite right?

 

I just bought the car and I'm on a budget and still need to fix a few things. I am waiting on the things that don't need to be done right away. The air bag light isn't on, so I wasn't too worried about the clock spring just yet. I was able to turn the steering wheel so that the buttons would work and I could access the A/C diagnostic mode. It gave me code 21, 42, and 43. I know 21 we can ignore since its just regarding the solar sensor, but what are the other two?