Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CCM-DD22

Condition




The diagnostic trouble code (DTC) is stored if the climate control module (CCM) detects that data that is sent on LIN bus 1 is incorrect.
The following components communicate with the climate control module (CCM) via LIN bus 2:
- damper motor module (DMM) defroster
- damper motor module (DMM) temperature right (only ECC)
- damper motor module (DMM) recirculation (only on left-hand drive cars)
- air quality sensor (AQS) (only on left-hand drive cars)
- seat heating module (SHM) right.
The diagnostic trouble code (DTC) can be detected at key positions 1 and 2 (not key position 3).

Substitute value
- None.

Possible source
- Incorrect data during communication on LIN bus 2.

Fault symptom[s]
- Misting on the windows and/or door mirrors.
- Air flow problem.
- Poor heating in the passenger compartment.
- The front seat heating does not function.
- Poor air quality in the passenger compartment.