If the climate control unit has been replaced, or a new position motor for the temperature damper has been installed, a basic setting must be performed. When the climate regulation basic setting is performed, the control unit learns the position motors end positions.
Test prerequisites:
The battery voltage should be above 11.5 V.
Ignition on, engine off.
No fault codes should be stored in the fault memory.
Correctly installed and connected.
Performance:
Choose the function: Climate regulation.
The temperature damper position motors runs to the end positions during the basic setting. A text present the damper position motors and changes to OK when it is finished.
Wait about 20 seconds (the climate control unit registrates the position motors new values and stores them).
End the function. Switch OFF/ON the ignition, wait about 15 seconds for possible fault codes to be stored.
Re-establish the communication and check if any fault codes have been stored.
If the function fails, check test prerequisites and repair possible fault codes.