Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CCM-DD31

Condition




Diagnostic trouble code (DTC) CCM-DD31 is stored if the climate control module (CCM) detects an open-circuit in the communication between the climate control module (CCM) and the damper motor recirculation on LIN bus 2.
The diagnostic trouble code (DTC) may occur together with diagnostic trouble codes (DTCs) for other components on LIN bus 2 (CCM-DD30 - CCM-DD34) depending on where the open-circuit has occurred.
The diagnostic trouble code (DTC) can be detected at key position 1 or 2 (not key position 3).

Substitute value
- None.

Possible source
- Open-circuit on LIN bus 2 between the climate control module (CCM) and the damper motor module (DMM) recirculation
- Contact resistance, oxidation or loose connections in the connectors.

Fault symptom[s]
- No recirculation.