VOLVO
CEM-B108886 - LIN Bus "B". Bus Signal / Message Failures. Signal invalid
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleV40 (2013–), V40 Cross Country (2013–)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
The CEM talks to the movement sensor (IMS) and the siren (BBS) over a shared LIN bus. The fault shows that messages on the bus are corrupted, so the alarm may not work fully. The fault is checked when the alarm function is activated.
Mögliche Ursachen
- Loose, corroded or high-resistance connections in the connectors
- Internal fault in the movement sensor (IMS)
- Internal fault in the siren (BBS)
Was Sie tun können
- 1Read off and note the code, clear it, then arm the alarm to see whether the code returns
- 2Check that the connectors to the movement sensor and the siren are fully engaged and not corroded
- 3Check that the fuse for the alarm is intact
- 4Use a multimeter (ignition off, connectors unplugged) to check that the LIN wire to the siren and movement sensor has no connection to ground or battery positive
- 5If you have a diagnostic tool, activate the alarm with the tool and check whether the siren responds
- 6If the fault remains, have a workshop check the movement sensor and the siren
Symptome, die Sie bemerken können2
- The alarm does not start or gives no visible or audible signal
- Other alarm functions do not work correctly
Was der Fehler beeinflussen kann1
- The siren beeps several times if the bus communication drops out
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.