VOLVO
ECM-2A2A - Rear heated oxygen sensor (HO2S) preheating. 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:
6 modellerC70 Cabriolet (1998–2005), S60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Vis modeller per årsmodell og motor (11)
- Volvo C70 Cabriolet (1998–2005)2003–2005
- Volvo S60 (2001–2009)2002–2003Kun motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo S60 (2001–2009)2004Kun motor: B5204T5, B5234T3, B5234T7, B5254T4
- Volvo S80 (1999–2006)2002Kun motor: B5204T5, B5234T7, B5244T3, B6294S2, B6294T
- Volvo S80 (1999–2006)2003Kun motor: B5204T5, B5234T7, B5244T3, B5254T2, B6294S2, B6294T
- Volvo S80 (1999–2006)2004Kun motor: B5204T5, B5234T7, B6294S2, B6294T
- Volvo V70 (2000–2008)2002–2003Kun motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo V70 (2000–2008)2004Kun motor: B5204T5, B5234T3, B5234T7, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2002
- Volvo V70 XC / XC70 (2001–2007)2003–2004Kun motor: B5234T7
- Volvo XC90 (2003–)2003–2004Alle motorer unntatt: D5244T
Hva betyr feilkoden?
The engine control module (ECM) has registered a faulty signal from the preheating of the rear oxygen sensor. The fault can be caused by contact resistance, oxidation or a defective sensor.
Mulige årsaker
- Contact resistance and oxidation in the connections
- Defective rear oxygen sensor
Hva du kan gjøre
- 1Read the code, clear it and road test to see whether it returns
- 2Check that the connector at the rear oxygen sensor is secure and not oxidised or showing contact resistance
- 3Try a new rear oxygen sensor if the fault is not cleared by the connector check
- 4If the fault returns, have a workshop check the sensor signal with diagnostic equipment
Symptomer du kan merke1
- The malfunction indicator light (MIL) comes on
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