VOLVO
CEM-B1C8414 - Heated rear window relay output circuit. General Electrical Failures. Circuit short to ground or open
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
4 modellerS80 (2007–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Vis modeller per årsmodell og motor (4)
Hva betyr feilkoden?
The central electronic module (CEM) controls the rear window defroster. The code is set when the signal from the output is too low, which can be caused by the supply wire being shorted to ground or having an open circuit.
Mulige årsaker
- The supply wire to the rear window heater is shorted to ground
- Open circuit on the supply wire to the rear window heater
Hva du kan gjøre
- 1Read and clear the code, then see whether the rear window heater works after it is switched on
- 2Check the rear window heater fuse and make sure it is intact
- 3Use a multimeter to check that the supply wire has no contact with ground (the bodywork)
- 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
Symptomer du kan merke1
- Electric heating of the rear window does not work
Hva feilen kan påvirke2
- The function switches off permanently after repeated driving cycles in which the fault was detected
- Clearing the fault codes resets the output
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.