VOLVO
CEM-B101C88 - Right Headlamp Control. Bus Signal / Message Failures. Bus off
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 fault concerns communication with the right main headlamp control unit (RHCU). The fault code is stored when the LIN bus is shorted to voltage or earth, which can make the right headlamp adjustment wrong or stop it working.
Mögliche Ursachen
- LIN bus shorted to voltage or earth
- Damaged right main headlamp control unit (RHCU)
Was Sie tun können
- 1Check that the wiring to the right headlamp has no chafing or pinching, especially at seals and body edges
- 2With the ignition off, use a multimeter to check whether the LIN wire to the right headlamp has contact with earth (the body) or voltage
- 3Check that the connectors are dry and secure
- 4Clear the fault code and road test to see whether it returns
- 5If the fault remains, have a workshop isolate the bus and find which part is interfering with it
Symptome, die Sie bemerken können3
- Side adjustment of the right headlamp does not follow the steering wheel correctly, or does not work
- Height adjustment of the right headlamp is wrong or does not work
- Main beam with automatic high beam control does not work
Was der Fehler beeinflussen kann2
- The right headlamp's light range is used as a fixed setting
- Side adjustment freezes in the straight-ahead position
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.