VOLVO
CEM-5F3C - Heater fan. Signal too high
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 (10)
- Volvo S60 (2001–2009)2001, 2005–2009
- 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, 2005–2006
- Volvo S80 (1999–2006)2003–2004Alle motorer unntatt: B5254T2
- Volvo V70 (2000–2008)2000–2003, 2005–2008
- Volvo V70 (2000–2008)2004Alle motorer unntatt: B5254T4
- Volvo V70 XC / XC70 (2001–2007)2001–2007
- Volvo XC90 (2003–)2003–2015
Hva betyr feilkoden?
The central electronic module (CEM) monitors the heater fan in the parking heater. If the signal from the fan circuit is too high, for example because of a short to voltage, the code is set. The fault shows when the heater is active and appears as poor heating in the passenger compartment.
Mulige årsaker
- Signal wire short-circuited to voltage supply
- Defective heater fan
- Damaged heater fan
Hva du kan gjøre
- 1Read and note the code, clear it and activate the heater fan to see whether the fault returns
- 2Listen for a buzzing sound which shows that the heater fan is running
- 3Check that the wiring and connectors to the fan are secure and free from corrosion
- 4Use a multimeter to check that the signal wire to the heater fan has no contact with voltage supply
- 5If the wire is intact and the fault remains, a workshop should replace the heater fan
Symptomer du kan merke1
- Poor interior heating
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