VOLVO
CCM-000F - Damper motor defroster. Signal too low
System
Climate Control Module (CCM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
What does this fault code mean?
The control module has received too weak a signal from the defroster damper motor. The damper controls airflow to the windscreen, so when the signal is missing the defroster airflow can be wrong.
Possible causes
- Signal wire linking the control module to the damper motor shorted to live voltage
- Open circuit in the signal wire linking the control module to the damper motor
- Contact resistance, oxidation or play in the connectors
- Defective damper motor
What you can do
- 1Start the engine, switch on the blower and activate the defroster button. Check that the airflow changes
- 2Check the connectors at the defroster and recirculation damper motors for loose contacts and corrosion
- 3Check the wiring between the damper motors for chafing and crushed areas
- 4Remedy anything found and clear the fault code
- 5If the fault remains, have a workshop check the signal wire and replace the damper motor if needed
- 6If you have a diagnostic tool, follow the damper position in live data while turning the control and check that it changes smoothly
Symptoms you may notice1
- Air flow problem
General guidance for car owners. Diagnosis on the car can point to a different cause.