VOLVO
ECM-220B - Rear heated oxygen sensor (HO2S). Signal too low
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
7 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008)
Modelle nach Baujahr und Motor anzeigen (11)
- 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 S40 (2004–2013)2005–2010Nur Motor: B5244S4, B5244S5, B5244S7
- Volvo S60 (2001–2009)2005–2006Nur Motor: B5244S, B5244S2, B5244S6
- Volvo S60 (2001–2009)2007–2009Nur Motor: B5244S, B5244S2
- Volvo S80 (1999–2006)2005–2006Nur Motor: B5244S, B5244S2
- Volvo V50 (2004–2013)2005–2010Nur Motor: B5244S4, B5244S5, B5244S7
- Volvo V70 (2000–2008)2005–2006Nur Motor: B5244S, B5244S2, B5244S6
- Volvo V70 (2000–2008)2007–2008Nur Motor: B5244S, B5244S2
Was bedeutet der Fehlercode?
The engine control module continuously monitors the voltage from the rear oxygen sensor and treats it as a fault when the voltage is outside the expected range, here too low. The fault can lie in the signal wire, in the connectors or in the sensor.
Mögliche Ursachen
- Signal wire shorted to ground
- Open circuit in the signal wire
- Contact resistance and oxidation in the connections
- Damaged rear oxygen sensor
Was Sie tun können
- 1Have a diagnostic tool? Read the fault status after the engine has idled for a while; if the fault is still present it is permanent
- 2Check the connector on the rear oxygen sensor for contact resistance and oxidation
- 3Inspect the wiring for chafing, pinching and breaks
- 4Use a multimeter to check that the signal wire is not shorted to ground or voltage
- 5If the fault remains, have a workshop try a new rear oxygen sensor
Symptome, die Sie bemerken können1
- The malfunction indicator lamp (MIL) comes on
Was der Fehler beeinflussen kann1
- Control using the rear oxygen sensor is switched off
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.