Diagnostic trouble code (DTC) information CCM-DD30

Condition

Fig 1: Identifying Left Seat Heating Module (SHM)

Courtesy of VOLVO CARS OF NORTH AMERICA.

The diagnostic trouble code (DTC) is stored if the climate control module (CCM) detects an open-circuit in the communication between the right-hand seat heater and the climate control module (CCM) 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 diagnosed at ignition switch position II.

The diagnostic trouble code (DTC) can only be diagnosed for the climate control module (CCM) when seat heating is installed in the car.

Substitute Value

None.

Possible Source

Open-circuit on LIN bus 2 between the climate control module (CCM) and the right-hand seat heating module (SHM)
Contact resistance, oxidation or loose connections in the connectors.

Fault symptom[s]

The front seat heating does not function.