VOLVO
CEM-B1D1A12 - Interior Lights Circuit "C". General Electrical Failures. Circuit short to battery
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
7 modeliS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Co oznacza ten kod błędu?
The central electronic module (CEM) supplies the roof lighting through circuit C. The code is set when the signal from the output is too high, which is caused by the supply wire being shorted to voltage.
Możliwe przyczyny
- The supply wire to the roof lighting is shorted to voltage
Co możesz zrobić
- 1Read and clear the code and switch on the roof lighting to see whether it works
- 2Check that the fuse for the roof lighting is intact
- 3Use a multimeter to see whether the supply wire has voltage with the ignition off
- 4Look for chafing on the supply wire to the roof lighting, especially where the cable may have been pinched
- 5If the wire is intact, have a workshop with diagnostic equipment check the module output
Objawy, które możesz zauważyć2
- The roof lighting does not work
- The roof lighting does not switch off when the engine is running
Na co może wpływać usterka3
- The function switches off during the driving cycle in which the fault is detected
- After repeated driving cycles with the fault, the function is switched off permanently
- Clearing the fault codes and starting a new driving cycle resets the output
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.