VOLVO
CEM-B112A12 - Relay B 15-feed. General Electrical Failures. Circuit short to battery
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
9 ModelleS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Modelle nach Baujahr und Motor anzeigen (9)
Was bedeutet der Fehlercode?
The CEM controls a distribution relay for the 15 feed, which is switched on when the ignition is turned on. On cars built before mid-November 2009, the relay is in the rear fuse box in the luggage compartment. On later cars it sits in the fuse box in the cabin, next to the CEM. The code is stored when the output to the relay coil is short-circuited to supply voltage.
Mögliche Ursachen
- The cable is short-circuited to supply voltage
Was Sie tun können
- 1Check that the relevant fuses are intact. Their locations are in the owner's manual or on the fuse box cover
- 2The relay is in the luggage compartment fuse box on cars built before mid-November 2009, and in the cabin on later cars
- 3Use a multimeter to check whether the relay wire has voltage when the ignition is off
- 4Look for chafing and pinch damage on the cable to the relay
- 5If you have a diagnostic tool: activate the all-wheel drive or the active chassis and check whether the function responds
- 6If the fault returns, have a workshop with diagnostic equipment check the relay and the wiring
Symptome, die Sie bemerken können3
- All-wheel drive does not work
- Four-C function does not work
- Active chassis does not work
Was der Fehler beeinflussen kann3
- The function switches off in the driving cycle in which the fault is detected
- Permanent shut-off follows after 100 driving cycles with the fault
- Clearing the fault codes and starting a new driving cycle resets the output
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.