VOLVO
CEM-5F41 - Overheat thermostat. 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–)
Vis modeller per årsmodell og motor (12)
- Volvo S60 (2001–2009)2001, 2005–2009
- Volvo S60 (2001–2009)2002Alle motorer unntatt: D5244T2
- Volvo S60 (2001–2009)2003Alle motorer unntatt: B5244S6, B5254T2, D5244T2
- Volvo S60 (2001–2009)2004Alle motorer unntatt: B5244S6, B5254T2, B5254T4, D5244T2
- Volvo S80 (1999–2006)1999–2002, 2005–2006
- Volvo S80 (1999–2006)2003–2004Alle motorer unntatt: B5254T2
- Volvo V70 (2000–2008)2000–2002, 2005–2008
- Volvo V70 (2000–2008)2003Alle motorer unntatt: B5244S6, B5254T2
- Volvo V70 (2000–2008)2004Alle motorer unntatt: B5244S6, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2001–2002, 2005–2007
- Volvo V70 XC / XC70 (2001–2007)2003–2004Alle motorer unntatt: B5254T2
- Volvo XC90 (2003–)2003–2015
Hva betyr feilkoden?
The overheat protection thermostat in the heater has tripped, and the central electronic module (CEM) treats this as a fault and sets the code. The thermostat trips when the heater becomes too hot, for example when the flow of water through it is restricted. The fault shows when the heater is active and causes poor heating in the passenger compartment.
Mulige årsaker
- Air in the cooling system
- Cooling system blocked
- Defective overheat protection thermostat
- Defective water temperature sensor
- Open circuit in the fuel pump circuit
Hva du kan gjøre
- 1Read and note the code, clear it and start the heater to see whether the fault returns
- 2Check that the hoses to and from the heater are not blocked, kinked or damaged
- 3Check that the coolant level is correct and that the cooling system contains no air
- 4If you have a diagnostic tool, read the water temperature in the heater in live data and compare it with the engine temperature with the engine running
- 5Have a workshop check the overheat protection thermostat and replace it if it is damaged
Symptomer du kan merke1
- Poor heating in the passenger compartment
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.