VOLVO
CEM-U023687 - Lost Communication With Column Lock Module. 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 fault code means that the control module storing the fault does not receive the expected communication from the steering column lock module (SCL), which locks and unlocks the steering column. Without a reply the lock may not lock or unlock as it should. Engine starting can also be affected.
Possible causes
- Break in the supply wire feeding the lock module (SCL)
- Broken ground wire to the SCL
- Contact resistance in the connections
- Open circuit in the signal wire
What you can do
- 1Switch the ignition off and check the supply wire between the SCL and the central module for breaks and shorts to ground
- 2Check the signal wire between the central module and the SCL for breaks or shorts to ground, and repair the wiring as needed
- 3Check the SCL ground wire and ground point for loose contact and oxidation
- 4Safety: the steering lock affects steering. Have a workshop check the lock and wiring. Programming or replacing the lock module is a workshop job
Symptoms you may notice3
- Steering column lock does not lock or unlock
- Starter does not turn over
- Message in the information display
General guidance for car owners. Diagnosis on the car can point to a different cause.