Re-circulation Blend Door - where/how/ehh?

[2006Tahoe2WD]

I'm pretty sure I have the recirculation activator over-travel issue that throws the P0229 code. One explanation is the foam gets compressed overtime and the door moves past the "stop" position too far. Makes sense - two ways to fix it:
1 - get the allowable limit reprogrammed at the dealer
2 - add some additional foam on top of the foam that is there

My Foxwell two way scanner can reset the doors and I've reset using the remove-fuse method. Doesn't help because there are still too many stepper motor counts to "close" the door. I think the range allowable is 5 to 240? Something like that.

Does this make sense?

I went in with the Foxwell two-way scanner and used the test function to try and move all the doors. I couldn't seem to get the "air" or recirculation door to move. It made some faint sounds and maybe moved one or two numbers. Also I opened the glove box and I didn't see it move. I think I need a new actuator.

 

[SnowDrifter]

Did you get a code? I have code B0229. Recirculation position feedback circuit range/performance. Am I looking at replacing the recirculation door actuator?

That's the same code I got

As far as the fix? Honestly, need to diagnose it before anything else