VOLVO
CEM-B130E11 - Left Rear Fog Lamp. General Electrical Failures. Circuit short to ground
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 supplies the left rear fog lamp directly from an output. The fault is stored when the signal from the output is too low, and the cause is a supply wire short-circuited to earth, poor contact, or a signal wire short-circuited to earth. The fault is checked with the fog lamp switched on.
Mulige årsaker
- The supply wire is short-circuited to earth
- Contact resistance, oxidation or poor contact in the connections
- The signal wire is short-circuited to earth
Hva du kan gjøre
- 1Start by checking that the fuses for the fog lamps are intact
- 2Switch on the rear fog lamps and see whether the left lamp lights, then clear the fault code and road test
- 3Check the connectors at the left lamp and at the CEM: loose or oxidised connectors should be cleaned and pressed in
- 4Use a multimeter to check that the wire has no contact with earth (the body) with the connectors disconnected
- 5If the fault returns, have a workshop with diagnostic equipment fault-trace the control module and the wiring
Symptomer du kan merke2
- The left rear fog lamp does not light
- Yellow warning symbol and text message in the display
Hva feilen kan påvirke3
- The output switches off during the driving cycle in which the fault is detected
- If the fault remains, the output is switched off permanently after 100 driving cycles where the fault was detected
- Erasing the fault codes and starting a new driving cycle resets the output
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