So I've searched everywhere and cannot find anyone with similar issues. It's a 2010 Prius II with 155k miles, I bought at 145k miles. Love the car, everything has been awesome so far. A/C is still blowing cold and strong, it's just not blowing entirely out the vents. Set on auto and recirculate, just like it has been all summer, it will blow about 20% out the dash vents and the rest out the floor vents. You can hardly feel air in the front seat and not at all in the back seat. Ironically, if i change the mode to floor, it blows out significantly stronger in the side vents. I ran the ac diagnostic and it came back with a code 43 which is "Air outlet damper control servo motor circuit". Causes could be the motor itself, the A/C harness, or the A/C amplifier. I have both glove boxes removed and can easily see the motor moving, it appears to be working properly. I don't know if that is the correct place to be looking though, I have been unable to find any breakaways of that area behind the dash. No other codes at all and the cabin air filter was just changed. Coming from a ford truck mindset, the first thing that occurs to me is vacuum leak but this thing is night and day compared to my 20 year old trucks. Any ideas?
So you've noticed a problem with controlling the air outlet path, and the car has noticed a problem with the same thing. So far, so good. "Causes could be the this, the that, or the other thing" usually doesn't add a lot to the diagnosis; what you're looking for are the troubleshooting steps you can take to pin down whether it is the this, or the that, or the other thing. Those steps will be found near the B1443 code in the repair manual, as bisco suggested. It's the right idea, only instead of using those old vacuum pistons to move the doors around, this car uses electric servo motors, so vacuum doesn't come into it. The details are in the manual.
