ECM-4050 - Fuel level sensor. Faulty signal
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
11 modellerC30 (2007–2013), C70 (2006–2013), C70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S40 (2004–2013), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V50 (2004–2013), V70 (1997–2000), V70 (2000–2008)
Vis modeller per årsmodell og motor (26)
- Volvo C30 (2007–2013)2007–2011Kun motor: B5244S4
- Volvo C70 (2006–2013)2006Alle motorer unntatt: B5254T3
- Volvo C70 (2006–2013)2007–2010Kun motor: B5244S4, B5244S5
- Volvo C70 (2006–2013)2011Kun motor: B5244S4
- Volvo C70 Cabriolet (1998–2005)2000Kun motor: B5244S
- Volvo C70 Coupé (1998–2002)1999Kun motor: B5254S DENSO
- Volvo C70 Coupé (1998–2002)2000Kun motor: B5244S
- Volvo S40 (2004–2013)2004Kun motor: B5244S4, B5244S5
- Volvo S40 (2004–2013)2005–2010Kun motor: B5244S4, B5244S5, B5244S7
- Volvo S60 (2001–2009)2001, 2009Kun motor: B5244S, B5244S2
- Volvo S60 (2001–2009)2002Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2003–2005Kun motor: B5244S, B5244S2, B5244S6, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2006Kun motor: B5244S, B5244S2, B5244S6, B5244SG
- Volvo S60 (2001–2009)2007–2008Kun motor: B5244S, B5244S2, B5244SG
- Volvo S70 (1997–2000)1999Kun motor: B5254S DENSO
- Volvo S70 (1997–2000)2000Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)1999–2000Kun motor: B5244S, B5244S2
- Volvo S80 (1999–2006)2001, 2006Kun motor: B5244S, B5244S2, B5244SG
- Volvo S80 (1999–2006)2002–2005Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V50 (2004–2013)2004Kun motor: B5244S4, B5244S5
- Volvo V50 (2004–2013)2005–2010Kun motor: B5244S4, B5244S5, B5244S7
- Volvo V70 (1997–2000)2000Kun motor: B5244S, B5244S2
- Volvo V70 (2000–2008)2001, 2007–2008Kun motor: B5244S, B5244S2, B5244SG
- Volvo V70 (2000–2008)2002Kun motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2003–2005Kun motor: B5244S, B5244S2, B5244S6, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2006Kun motor: B5244S, B5244S2, B5244S6, B5244SG
Hva betyr feilkoden?
The fuel level is reported to the engine control module with a wrong value or is missing altogether. The fault lies in another control module: the rear electronic module (REM) or the central electronic module (CEM) has found an electrical problem in the level sensor and sends the information on over the CAN network. The code is an information code that never occurs alone, so troubleshooting is done in the module that sends the signal.
Mulige årsaker
- Electrical fault in the fuel level sensor on the right-hand side, when the signal is too high
- Electrical fault in the fuel level sensor on the left-hand side, when the signal is too low
- Defective fuel level sensor
- Fault in the central electronic module (CEM), which should be troubleshot first
Hva du kan gjøre
- 1Have a workshop with diagnostic equipment read the fault codes in the central electronic module (CEM) first and remedy them
- 2Do not clear this code until the fault code in the CEM has been remedied and cleared, otherwise it will come back
- 3Check that the connector to the fuel level sensor is firmly seated and free from oxidation
- 4Look for chafed or pinched wiring to the fuel level sensor
- 5Use a multimeter to check that the signal wire from the fuel level sensor has no contact with ground or positive
- 6Have you got a diagnostic tool: read the fuel level in live data with the ignition on and check that the value changes smoothly when you add fuel
Symptomer du kan merke1
- No noticeable symptoms for the driver
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.