VOLVO
ECM-24CC - Front heated oxygen sensor (HO2S), bank 1. Signal too high
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 compares the front and rear oxygen sensors with each other and with their learned correction values. If the front sensor shows a lean mixture while the rear one shows a rich one, or the values drift too far apart, the code is stored. The fault can lie in the front or rear sensor circuit, and an exhaust leak can cause it.
Mulige årsaker
- Leakage in the exhaust system
- Oxygen sensor gives an incorrectly lean signal
- Damaged oxygen sensor
Hva du kan gjøre
- 1Read and note the code, clear it and road test to see whether it returns
- 2Look for air leaks in the exhaust system, such as cracks and leaking joints
- 3Look at the oxygen sensor connectors for oxidation and loose connections
- 4If there is no leak, 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.