VOLVO
CEM-C002313 - Stop Lamp Control. General Electrical Failures. Circuit open
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
1 modelS80 (2007–)
Show models by year and engine (1)
What does this fault code mean?
The central electronic module (CEM) supplies the brake lights. The code is set when the supply wire has an open circuit, and The brake lights then do not come on when the brake pedal is pressed, and the fault should be fixed promptly.
Possible causes
- Open circuit in the supply wire to the brake lights
What you can do
- 1Read and clear the code, then press the brake pedal and check whether the brake lights come on
- 2Check that the brake light fuse is intact
- 3Check that the brake bulbs are not blown and sit correctly in their holders
- 4Use a multimeter to check that the supply wire is continuous between its two ends
- 5If the wire is intact, have a workshop with diagnostic equipment check the module output
Symptoms you may notice2
- The brake lights do not come on when you press the brake pedal
- Message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.