VOLVO
CEM-B103D86 - Right Headlamp Control. Bus Signal / Message Failures. Signal invalid
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
9 modeliS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Co oznacza ten kod błędu?
Messages between the central electronic module (CEM) and the right main headlamp control unit (RHCU) are missing or incorrect on the LIN bus. The fault code is then stored, and the headlamp adjustment may be affected. The fault may lie in connectors, the bus, the supply, the earth or the control unit.
Możliwe przyczyny
- Contact resistance, oxidation or loose connections in connectors or joints
- Break in the communication bus to the right main headlamp control unit
- Break in the voltage supply or earth connection to the control unit
Co możesz zrobić
- 1With the ignition off, check the connectors and wires to the right headlamp for breaks, looseness and corrosion
- 2With the ignition off, use a multimeter to check whether the earth connection to the right headlamp is intact
- 3With the ignition on, use a multimeter to check whether the supply to the right headlamp has voltage
- 4Clear the fault code and road test to see whether it returns
- 5If the fault remains, have a workshop check the communication and the right headlamp control unit
Objawy, które możesz zauważyć4
- 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
- A message appears in the information display
- Main beam with automatic high beam control does not work
Na co może wpływać usterka2
- The light range is held in a fixed setting
- Side adjustment freezes in the straight-ahead position
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.