VOLVO
CEM-5F40 - Fuel pump. Signal too low
Układ
Centralny moduł elektroniczny (CEM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
5 modeliS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Pokaż modele wg rocznika i silnika (10)
- Volvo S60 (2001–2009)2001, 2005–2009
- Volvo S60 (2001–2009)2002Wszystkie silniki oprócz: D5244T2
- Volvo S60 (2001–2009)2003Wszystkie silniki oprócz: B5244S6, D5244T2
- Volvo S60 (2001–2009)2004Wszystkie silniki oprócz: B5244S6, B5254T4, D5244T2
- Volvo S80 (1999–2006)1999–2002, 2005–2006
- Volvo S80 (1999–2006)2003–2004Wszystkie silniki oprócz: B5254T2
- Volvo V70 (2000–2008)2000–2003, 2005–2008
- Volvo V70 (2000–2008)2004Wszystkie silniki oprócz: B5254T4
- Volvo V70 XC / XC70 (2001–2007)2001–2007
- Volvo XC90 (2003–)2003–2015
Co oznacza ten kod błędu?
The central electronic module (CEM) has registered that the signal in the fuel pump circuit is too low. The cause may be poor contact, an open circuit or earth fault in the wiring, a damaged fuel pump or a damaged overheat protection thermostat. The fault shows when the heater is active and causes poor heating in the passenger compartment.
Możliwe przyczyny
- Contact resistance in the control unit or fuel pump connector
- Signal wire short-circuited to ground
- Open circuit in the signal or voltage wire
- Damaged fuel pump
- Damaged overheat protection thermostat
Co możesz zrobić
- 1Read and note the code, clear it and activate the heater to see whether the fault returns
- 2Check the connectors at the fuel pump and the control unit for loose connections and corrosion, and remedy if needed
- 3If the heater works again after the connectors are repaired, the fault was probably poor contact
- 4Have a workshop check the overheat protection thermostat and replace it if it is damaged
- 5Use a multimeter to check that the wires to the fuel pump have no break and no contact with ground (the body)
Objawy, które możesz zauważyć1
- Poor heating in the passenger compartment
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.