Supply error on mix air/temp flap motor.
â–¶ How to fix
Check the cable harness for the mix air/temp flap motor and that it is electrially supplied, if no fault is found, replace the mix air/temp flap motor. This unit is connected to the climate control system via a LIN-bus.
What you'll see
No driver-visible symptom recorded.
System reaction
The mix air/temp flap will not function.
Diagnostic depth
Detection
The climate control system (E138) has detected the actuator reports an error.
Possible cause
The actuator has lost its electrial supply.