VOLVO
CCM-B108587 - Defroster Damper Motor. Bus Signal / Message Failures. Missing message
System
Climate Control Module (CCM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The climate control module (CCM) has lost contact with the defog damper motor on LIN bus 2. Without a reply, the module cannot control defogging of the windows and mirrors. The cause is an open circuit on the bus or poor connections.
Possible causes
- Open circuit on LIN bus 2
- Poor contact, corrosion or loose connections at the connectors
What you can do
- 1Check that the fuses are intact
- 2Check that the connectors to the damper motor and the climate control module are secure and free from corrosion
- 3Read and clear the code and road test the car to see whether it returns
- 4Try the defog function with the control and see whether the air changes
- 5Check with a multimeter that the LIN bus wires are not open, and that they are not chafed or pinched
Symptoms you may notice4
- Mist on the windows and/or the outside mirrors
- Mirror defog or defrost does not work
- Side window defog or defrost does not work
- Windscreen defog or defrost does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.