VOLVO
CEM-B1C7912 - Front Washer Pump Relay Coil Circuit. General Electrical Failures. Circuit short to battery
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
7 modellerS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Hva betyr feilkoden?
The central electronic module (CEM) activates the washer pump by connecting the control line of one of two pump relays in the passenger compartment fuse box to ground. The code is set when the control signal to the windscreen washer relay is high, meaning it is in contact with voltage, while the output is active.
Mulige årsaker
- The control wire to the relay is in contact with voltage (short to voltage)
- Damaged relay
Hva du kan gjøre
- 1Read and clear the code, then test the washer for both the windscreen and the rear window
- 2Check that the fuses for the washer pump in the passenger compartment fuse box are intact
- 3Use a multimeter to see whether the control wire to the relay has voltage with the ignition off
- 4Check that the connectors at the relay and in the passenger compartment fuse box are tight and free from oxidation
- 5If the wire is sound, have a workshop with diagnostic equipment check and replace the relay if needed
Symptomer du kan merke2
- The windscreen washer does not work
- The windscreen washing is poor
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.