VOLVO
CEM-9F24 - Rheostat. Signal too high. 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 central electronic module (CEM) has registered that the signal from the rheostat was too high at one point. The fault is intermittent, meaning it is sporadic, and may not be present now. The instrument lighting may stop working while the fault is active.
Mulige årsaker
- Rheostat shorted to supply voltage
- Faulty light switch
Hva du kan gjøre
- 1Turn the dimmer control and check whether the instrument lighting suddenly changes brightness or goes out
- 2Check the connectors and wiring to the light switch for loose connections, chafing and corrosion; gently move the wiring while the instrument lighting is on
- 3Use a multimeter while the dimmer control is turned: if voltage in the rheostat wire appears or changes as it moves, the fault is there
- 4Clear the fault code and road test to see whether it returns
- 5If the fault returns, have a workshop with diagnostic equipment check the light switch, because intermittent faults are often not seen in a simple check
Symptomer du kan merke1
- Instrument lighting does not work
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