VOLVO
CEM-8F16 - Xenon lamp left. Signal too low
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Hva betyr feilkoden?
The central electronic module (CEM) has registered that the signal from the left xenon lamp is too low. The fault is only checked with the ignition on and sufficient battery voltage, and it can come from a signal wire shorted to ground or from an actuator motor in the lamp housing that has jammed or been damaged.
Mulige årsaker
- Signal wire short-circuited to ground
- The motor that moves the xenon lamp has seized
- Faulty or broken motor that moves the xenon lamp
Hva du kan gjøre
- 1Check the battery: it should be charged and the terminals tight, because the fault is only tested when the battery voltage is sufficient
- 2With the ignition on, switch between low and high beam: if the lamp does not change, the fault is permanent; if it changes, the fault has occurred before
- 3Use a multimeter to check that the signal wire to the left lamp has no contact with ground (the body) with the ignition off
- 4If you have a diagnostic tool, activate the actuator motor in the left headlamp and check that it moves
- 5If the fault remains after these checks, have a workshop replace the left headlamp housing
Symptomer du kan merke4
- The low beam is constantly lit
- The high beam is constantly lit
- Road surface lighting does not work
- Headlamp aim is wrong or the height adjustment does not work
Hva feilen kan påvirke1
- The shortest beam range is used
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.