VOLVO
CEM-B10AC87 - Cruise Control Switch. Bus Signal / Message Failures. Missing message
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
7 modelsS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The CEM receives the signal from the cruise control switch and waits for a message. The fault shows that the signal is missing entirely, so the cruise control cannot be used.
Possible causes
- Open circuit in the signal wire
- Damaged cruise control switch
What you can do
- 1Clear the code and check whether it returns when you press the cruise control buttons
- 2Check that the connectors to the cruise control buttons are fully engaged and that the cable is not pinched or chafed
- 3Use a multimeter (ignition off, connector unplugged) to check that the signal wire has no break
- 4If you have a diagnostic tool, read the cruise control switch in live data; if no value appears at all, troubleshoot the wire
- 5If the fault remains, have a workshop check the switch and the wire
Symptoms you may notice1
- The cruise control cannot be used
General guidance for car owners. Diagnosis on the car can point to a different cause.