VOLVO
CEM-U210100 - Control Module Configuration Incompatible. General Failure Information. No sub type information
System
Central Electronic Module (CEM)
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 central electronic module (CEM) has found a software fault in itself, so it is not working as it should. The code does not say which type of fault it is, so troubleshooting starts with the software. The fault is stored while the ignition is on and can stop the engine from starting and cause several gauges and lights to stop working.
Possible causes
- Software fault in the central electronic module (CEM)
What you can do
- 1Read and note the code, clear it, then road test the car to see whether it comes back
- 2Check that the battery is charged and the terminals are tight, since low voltage can cause the module to malfunction
- 3Has the car recently had new software or an update that was interrupted? Tell the workshop
- 4If the fault returns, have a workshop reload the module software with the latest version
Symptoms you may notice5
- The engine does not start
- No gauges work
- Instrument lighting does not work
- Front and rear turn signals do not work
- The car performs poorly and hesitates while driving
General guidance for car owners. Diagnosis on the car can point to a different cause.