ECM-4050 - Fuel level sensor. Faulty signal
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Dieser Fehlercode hat je nach Modell, Modelljahr oder Motor unterschiedliche Bedeutungen. Wählen Sie die Bedeutung, die für Ihr Fahrzeug gilt.
Gilt für folgende Modelle:
11 ModelleC30 (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)
Modelle nach Baujahr und Motor anzeigen (26)
- Volvo C30 (2007–2013)2007–2011Nur Motor: B5244S4
- Volvo C70 (2006–2013)2006Alle Motoren außer: B5254T3
- Volvo C70 (2006–2013)2007–2010Nur Motor: B5244S4, B5244S5
- Volvo C70 (2006–2013)2011Nur Motor: B5244S4
- Volvo C70 Cabriolet (1998–2005)2000Nur Motor: B5244S
- Volvo C70 Coupé (1998–2002)1999Nur Motor: B5254S DENSO
- Volvo C70 Coupé (1998–2002)2000Nur Motor: B5244S
- Volvo S40 (2004–2013)2004Nur Motor: B5244S4, B5244S5
- Volvo S40 (2004–2013)2005–2010Nur Motor: B5244S4, B5244S5, B5244S7
- Volvo S60 (2001–2009)2001, 2009Nur Motor: B5244S, B5244S2
- Volvo S60 (2001–2009)2002Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2003–2005Nur Motor: B5244S, B5244S2, B5244S6, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2006Nur Motor: B5244S, B5244S2, B5244S6, B5244SG
- Volvo S60 (2001–2009)2007–2008Nur Motor: B5244S, B5244S2, B5244SG
- Volvo S70 (1997–2000)1999Nur Motor: B5254S DENSO
- Volvo S70 (1997–2000)2000Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)1999–2000Nur Motor: B5244S, B5244S2
- Volvo S80 (1999–2006)2001, 2006Nur Motor: B5244S, B5244S2, B5244SG
- Volvo S80 (1999–2006)2002–2005Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V50 (2004–2013)2004Nur Motor: B5244S4, B5244S5
- Volvo V50 (2004–2013)2005–2010Nur Motor: B5244S4, B5244S5, B5244S7
- Volvo V70 (1997–2000)2000Nur Motor: B5244S, B5244S2
- Volvo V70 (2000–2008)2001, 2007–2008Nur Motor: B5244S, B5244S2, B5244SG
- Volvo V70 (2000–2008)2002Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2003–2005Nur Motor: B5244S, B5244S2, B5244S6, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2006Nur Motor: B5244S, B5244S2, B5244S6, B5244SG
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- 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
Was Sie tun können
- 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
Symptome, die Sie bemerken können1
- No noticeable symptoms for the driver
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.