VOLVO
CEM-B10AC86 - Cruise Control Switch. Bus Signal / Message Failures. Signal invalid
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 reads the input from the cruise control switch. The fault shows that the reading is incorrect, so the cruise control does not work.
Possible causes
- Damaged cruise control switch
What you can do
- 1Read off and note the code, clear it and check whether it returns when you use the cruise control buttons
- 2Check that the fuses for the cruise control are intact
- 3Check that the connectors to the cruise control buttons are fully engaged and not corroded
- 4If you have a diagnostic tool, read the cruise control switch in live data and check that the values change when you press the buttons
- 5If the fault remains, have a workshop check the cruise control switch
Symptoms you may notice1
- The cruise control does not work at all
General guidance for car owners. Diagnosis on the car can point to a different cause.