VOLVO
CEM-5F3F - Fuel pump. Signal too high
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
5 ModelleS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (10)
- Volvo S60 (2001–2009)2001, 2005–2009
- Volvo S60 (2001–2009)2002Alle Motoren außer: D5244T2
- Volvo S60 (2001–2009)2003Alle Motoren außer: B5244S6, D5244T2
- Volvo S60 (2001–2009)2004Alle Motoren außer: B5244S6, B5254T4, D5244T2
- Volvo S80 (1999–2006)1999–2002, 2005–2006
- Volvo S80 (1999–2006)2003–2004Alle Motoren außer: B5254T2
- Volvo V70 (2000–2008)2000–2003, 2005–2008
- Volvo V70 (2000–2008)2004Alle Motoren außer: B5254T4
- Volvo V70 XC / XC70 (2001–2007)2001–2007
- Volvo XC90 (2003–)2003–2015
Was bedeutet der Fehlercode?
The central electronic module (CEM) monitors the fuel pump in the parking heater. If the signal in the fuel pump 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 may stop the parking heater from working.
Mögliche Ursachen
- Signal wire short-circuited to voltage supply
- Defective fuel pump
- Damaged fuel pump
Was Sie tun können
- 1Read and note the code, clear it and check that the heater starts with only the ignition switched on, with a buzzing sound from it
- 2Check that the fuel pump connectors are secure and free from corrosion
- 3Use a multimeter to check that the signal wire to the fuel pump has no contact with voltage supply
- 4If the wire is intact and the fault remains, a workshop should replace the fuel pump
- 5After the repair, check that the cabin heating improves
Symptome, die Sie bemerken können2
- Poor heating in the passenger compartment
- Parking heater does not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.