No heat and code 41

[jcrump]

Hello all,

It's the first cool day of fall for us and my wife turned on the heat, but no heat came out. The AC had been weak at best this summer, but I just figured it was old age.

I ran the diagnostics on the climate control system and it came back with code 41.

From what I could find, it's Air mix damper control servomotor passenger side. But, no heat is coming out on either side, and there's no tell tale clicking noises when adjusting the heat.

So, is there an upstream air blender somewhere? Or is it likely the heater core?

Thanks, James

[jcrump]

After more testing, it appears it is in fact the passenger side servo, and tired AC.