VOLVO
CEM-B141D87 - Rear Reading Light. Bus Signal / Message Failures. Missing message
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerV40 (2013–), V40 Cross Country (2013–)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The CEM communicates with the rear reading light (RRL) over the LIN bus. The fault is stored when communication with the reading light is missing, which means the passenger compartment lighting cannot be controlled from the CEM.
Mulige årsaker
- Open circuit in the communication wire to the rear reading light
- Contact resistance, oxidation or poor contact in the connector terminals and connections
- The rear reading light is not receiving power
- Damaged rear reading light (RRL)
Hva du kan gjøre
- 1Check that the fuses are intact and that the reading light receives power
- 2Check the connectors at the reading light: loose or oxidised connectors should be cleaned and pressed in
- 3Check the communication wire to the reading light for breaks and chafing
- 4Use a multimeter to check that voltage is present at the reading light connector with the ignition on
- 5If the fault remains, have a workshop check or replace the rear reading light
Symptomer du kan merke1
- The lighting in the passenger compartment does not work
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.