VOLVO
CEM-B103C16 - Left Headlamp Control. General Electrical Failures. Circuit voltage below threshold
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
7 modellerS60 (2011–), S80 (2007–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Hva betyr feilkoden?
The left main headlamp control unit (LHCU) receives too low a voltage, according to the fault code. It drives the headlamp motors, so side and height adjustment and automatic high beam can be affected. The fault may lie in the supply or in the control unit.
Mulige årsaker
- Incorrect voltage supply to the left main headlamp control unit (LHCU)
- Supply wire shorted to earth or voltage
- Damaged left main headlamp control unit (LHCU)
Hva du kan gjøre
- 1Check that the fuses for the headlamps are intact
- 2With the ignition on, use a multimeter to check the supply wire to the left headlamp. Too low a voltage, or none, points to a supply fault
- 3With the ignition on, check whether the wire has contact with earth or voltage, since a short circuit can cause too low a voltage
- 4Remedy the fault and clear the fault code. If it returns, have a workshop check the left headlamp control unit
Symptomer du kan merke4
- Headlamp side adjustment does not follow the steering wheel correctly, or does not work
- Headlamp height adjustment is wrong or does not work
- A message appears in the information display
- Main beam with automatic high beam control does not work
Hva feilen kan påvirke2
- The headlamp light range is locked at one fixed level
- Side adjustment stops in the straight-ahead position
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