VOLVO
ECM-280A - Front heated oxygen sensor (HO2S), bank 1. Signal missing. Intermittent fault
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:
6 ModelleC70 Cabriolet (1998–2005), S60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (17)
- Volvo C70 Cabriolet (1998–2005)2003–2005
- Volvo S60 (2001–2009)2001Alle Motoren außer: B5244S, B5244S2, D5244T
- Volvo S60 (2001–2009)2002Nur Motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo S60 (2001–2009)2003Nur Motor: B5204T5, B5234T3, B5234T7, B5244T3, B5254T2
- Volvo S60 (2001–2009)2004Nur Motor: B5204T5, B5234T3, B5234T7, B5254T2, B5254T4
- Volvo S80 (1999–2006)1999–2000Alle Motoren außer: B5244S, B5244S2, D5252T MSA 15.8
- Volvo S80 (1999–2006)2001Nur Motor: B5204T5, B5234T7, B5244T3, B6284T, B6294S
- Volvo S80 (1999–2006)2002Nur Motor: B5204T5, B5234T7, B5244T3, B6294S2, B6294T
- Volvo S80 (1999–2006)2003Nur Motor: B5204T5, B5234T7, B5244T3, B5254T2, B6294S2, B6294T
- Volvo S80 (1999–2006)2004Nur Motor: B5204T5, B5234T7, B5254T2, B6294S2, B6294T
- Volvo V70 (2000–2008)2000Alle Motoren außer: D5252T MSA 15.8
- Volvo V70 (2000–2008)2001–2002Nur Motor: B5204T5, B5234T3, B5234T7, B5244T3
- Volvo V70 (2000–2008)2003Nur Motor: B5204T5, B5234T3, B5234T7, B5244T3, B5254T2
- Volvo V70 (2000–2008)2004Nur Motor: B5204T5, B5234T3, B5234T7, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2001–2002
- Volvo V70 XC / XC70 (2001–2007)2003–2004Alle Motoren außer: D5244T
- Volvo XC90 (2003–)2003–2004Alle Motoren außer: D5244T
Was bedeutet der Fehlercode?
The engine control module has detected that the signal from the front heated oxygen sensor on bank 1 is missing. The fault is intermittent: it has occurred at some point but may not be present now. It may be caused by a short circuit between the sensor's signal wires, or between one of the heater wires and the sensor's other wiring.
Mögliche Ursachen
- Short circuit between the signal cables (+) and (-)
- Short circuit between one of the heater cables and the sensor's other wiring
Was Sie tun können
- 1Read the code, note it, clear it and drive the car for a while to see whether it returns
- 2Inspect the wiring to the front oxygen sensor for chafing, pinched areas and places where wires touch each other
- 3Check the connector at the oxygen sensor so it is secure and clean. Do not spray rust solvent or grease into the connector
- 4With the car switched off, use a multimeter to check that the signal wires have no contact with each other or with the heater wires
- 5If you have a diagnostic tool: check in live data whether the oxygen sensor value changes while driving. A value that stays completely still indicates that the signal is missing
- 6If the fault returns, have a workshop check the wiring and the sensor with diagnostic equipment
Symptome, die Sie bemerken können1
- Malfunction indicator lamp (MIL) lit
Was der Fehler beeinflussen kann2
- Control with the rear oxygen sensor is switched off
- Catalytic converter diagnostic is switched off
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.