Our HVAC assembly consists of 5 flap motor / position sensor units. There has been some uploads earlier in the thread but for consistency, I will sum up below:
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24 - Recirculation flap motor
25 - Right side temp control flap motor
26 - Left side temp control flap motor
27 - Air distribution flap motor
28 - Defrost flap motor
Number 25 would be the unit you would want to verify for operation (assuming left hand drive for my documents). You may be able to swap 25 and 26 to see if the issue moves but I am uncertain if the connectors are the same from side to side.
Right temp control motor is below the defrost motor:
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Left temp control motor location:
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What is interesting is all the flap motors have position sensors integrated inside. If they do not get to their desired spot it should set a fault. I would also make sure the flap door moves freely when the motor is removed. Best of luck.