VOLVO
CEM-5F4C - Undervoltage. Signal too low
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–)
Vis modeller per årsmodell og motor (10)
- Volvo S60 (2001–2009)2001
- Volvo S60 (2001–2009)2002Alle motorer unntatt: D5244T2
- Volvo S60 (2001–2009)2003Alle motorer unntatt: B5244S6, D5244T2
- Volvo S60 (2001–2009)2004Alle motorer unntatt: B5244S6, B5254T4, D5244T2
- Volvo S80 (1999–2006)1999–2002
- Volvo S80 (1999–2006)2003–2004Alle motorer unntatt: B5254T2
- Volvo V70 (2000–2008)2000–2003
- Volvo V70 (2000–2008)2004Alle motorer unntatt: B5254T4
- Volvo V70 XC / XC70 (2001–2007)2001–2004
- Volvo XC90 (2003–)2003–2004
Hva betyr feilkoden?
The fault code indicates that the voltage in the car has been too low, which can be caused by a weak battery, a damaged alternator or poor contact in the control unit connections. The fault may have occurred once without showing when the car is checked. The heater then works less well.
Mulige årsaker
- Weak battery
- Damaged alternator
- Contact resistance in the control unit connections
Hva du kan gjøre
- 1Check the battery condition and that the terminal clamps are secure and clean
- 2Check that the control unit connections are secure and free from corrosion
- 3If you have a diagnostic tool, read the battery voltage in live data with the engine running and check that it rises once the engine is running
- 4If no fault is found, the fault may have been temporary, so road test the car and check whether the code returns
- 5If the fault returns, a workshop should repair the alternator or the connections
Symptomer du kan merke1
- Poor interior heating
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.