VOLVO
CEM-B1A8451 - Car Configuration Data. System Programming Failures. Not programmed
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsV40 (2013–), V40 Cross Country (2013–)
Show models by year and engine (2)
What does this fault code mean?
The car configuration data has not been programmed into the CEM. The cause is an internal software fault in the CEM, so the fault lies in the control module and not in the wiring.
Possible causes
- Faulty software in the CEM
What you can do
- 1Check that the battery has sufficient voltage
- 2Have a workshop program the CEM with the car's configuration data and the latest software
- 3Check whether the fault code returns after the programming
- 4If the fault remains, have a workshop replace the CEM
Symptoms you may notice1
- The engine does not start, sometimes or always
General guidance for car owners. Diagnosis on the car can point to a different cause.