VOLVO
CEM-B1C7912 - Front Washer Pump Relay Coil Circuit. General Electrical Failures. Circuit short to battery
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
7 ModelleS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- The control wire to the relay is in contact with voltage (short to voltage)
- Damaged relay
Was Sie tun können
- 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
Symptome, die Sie bemerken können2
- The windscreen washer does not work
- The windscreen washing is poor
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.