Supply error on air intake/recirc control motor (M58).
Check the cable harness for the air intake/recirc control motor and that it is electrially supplied, if no fault is found, replace the air intake/recirc control motor. This unit is connected to the climate control system via a LIN-bus. If one of the units on the LIN-bus is faulty it can affect the other units further down the same communication line. The LIN-units are split into three lines from C8061, one to the sun sensor, one to the humidity sensor via C24, and one to multiple units via C8046. From C8046 the units are arranged: air intake/recirc control motor, air dist/defrost. motor, mix air/temp flap motor, panel/floor flap dist. motor, 2nd recirc/AQS motor and AQS-sensor.
What you'll see
No driver-visible symptom recorded.
System reaction
The air intake/recirc flap will not function.
Diagnostic depth
The climate control system (E17) has detected the actuator reports an error.
The actuator has lost its electrial supply.