VOLVO
CEM-9F25 - Rheostat. Signal too low. Intermittent fault
System
Sentral elektronikk (CEM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
5 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Hva betyr feilkoden?
The rheostat, which controls the brightness of the instrument lighting, has at one point sent too low a signal to the central electronic module (CEM). The fault is sporadic and may no longer be visible. The instrument lighting can then stop working.
Mulige årsaker
- Rheostat shorted to earth
- Faulty light switch
Hva du kan gjøre
- 1Turn the dimmer control slowly and see whether the instrument lighting changes brightness in jumps or goes out
- 2Gently move the wiring and the light switch connector with the ignition on and see whether the instrument lighting is affected
- 3With the ignition off, use a multimeter to check whether the rheostat wire makes contact with earth when it is moved
- 4Clear the fault code and road test to see whether it returns
- 5If the fault returns, have a workshop check the rheostat and replace the light switch if needed
Symptomer du kan merke1
- Instrument lighting does not work
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.