VOLVO
CEM-B1C8212 - Headlamp washer relay A. General Electrical Failures. Circuit short to battery
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
9 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Hva betyr feilkoden?
The central electronic module (CEM) supplies the motor for the headlight washers, which spray the headlights with high pressure. The code is set when the output gives too high a signal, which may be caused by the supply wire to the motor being shorted to voltage.
Mulige årsaker
- The supply wire to the washer motor is shorted to voltage
Hva du kan gjøre
- 1Read and clear the code, then test the headlight washer and see whether it works
- 2Check the headlight washer fuse in the engine bay fuse box
- 3Look for chafing and marks on the supply wire to the washer motor
- 4Use a multimeter to see whether the supply wire has voltage with the ignition off, which shows a short to voltage
- 5If you have a diagnostic tool, activate the headlight washing and check that the motor starts and sprays
Symptomer du kan merke2
- The headlight washer motor does not work
- Headlight cleaning does not work
Hva feilen kan påvirke3
- The headlight washing 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 code and starting a new driving cycle resets the output
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