VOLVO
CEM-B106C13 - Daytime Running Light. General Electrical Failures. Circuit open
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 central electronic module (CEM) supplies the daytime running lights with power and monitors the current draw in the circuit. The fault shows that the supply circuit to the daytime running lights is open. Because the front daytime running and parking lights are combined, the parking lights may also stop working if the break is on the shared ground lead.
Possible causes
- The supply circuit to the daytime running lights is open
- An open circuit in the shared ground lead for the daytime running and parking lights
What you can do
- 1Clear the code and drive the car with the daytime running lights on to see whether the open circuit shows up again
- 2Check that the fuses for the daytime running lights are intact
- 3Check that the connectors at the front lights are fully engaged and not corroded
- 4Use a multimeter (ignition off, connector unplugged) to check that the wires to the daytime running lights are continuous and that the ground point has a good connection to the car body
- 5If you have a diagnostic tool, activate the daytime running lights with the tool and check whether both the daytime and parking lights come on
- 6If the fault remains, have a workshop check the wiring and the lights
Symptoms you may notice2
- The daytime running lights do not work
- Parking lights or side marker lights do not work
What the fault can affect1
- The daytime running light output is switched off during the operating cycle in which the fault is detected
General guidance for car owners. Diagnosis on the car can point to a different cause.