VOLVO
ECM-24CD - Front heated oxygen sensor (HO2S), bank 1. Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (9)
- Volvo C30 (2007–2013)2007Kun motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Kun motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Kun motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Kun motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo S40 (2004–2013)2008Kun motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Kun motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Kun motor: B5254T7
Hva betyr feilkoden?
The ECM checks the front oxygen sensor against the rear one and checks both against their learned correction values. If the front sensor shows a rich mixture while the rear one shows a lean one, or the values drift too far apart, the code is stored. The fault can lie in the front or rear sensor circuit.
Mulige årsaker
- Leakage in the exhaust system
- Oxygen sensor gives an incorrectly rich signal
- Damaged oxygen sensor
Hva du kan gjøre
- 1Clear the code and road test to see whether it returns
- 2Check that there is no air leak in the exhaust system, for example at flanges and the silencer
- 3Make sure the oxygen sensor connectors are clean and fully seated
- 4If the fault remains, have a workshop try replacing the oxygen sensors, since a damaged front or rear sensor can also cause the fault
Symptomer du kan merke1
- The malfunction indicator lamp (MIL) is lit
Hva feilen kan påvirke2
- Oxygen sensor control is switched off
- Catalytic converter diagnostics are switched off
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.