Diagnostic trouble code (DTC) information CCM-DD22

Condition 

Fig 1: Identifying Climate Control Module Faceplate

Courtesy of VOLVO CARS OF NORTH AMERICA.

The diagnostic trouble code (DTC) is stored if the climate control module (CCM) detects that data that is sent on LIN bus 2 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 diagnosed in ignition positions I and II.

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.