VOLVO
ECM-24CB - Front heated oxygen sensor (HO2S), bank 1. Signal missing
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
4 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (9)
- Volvo C30 (2007–2013)2007Nur Motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Nur Motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Nur Motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Nur Motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo S40 (2004–2013)2008Nur Motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Nur Motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Nur Motor: B5254T7
Was bedeutet der Fehlercode?
Although the code is titled signal missing, it applies when the front and rear sensors give conflicting pictures of the mixture, or when the front signal deviates too much from what the engine control module expects. The fault can then lie in either sensor or in their circuits.
Mögliche Ursachen
- Leakage in the exhaust system
- Front sensor shows an overly rich mixture
- Contact resistance or oxidation in the connectors
- Damaged oxygen sensor
Was Sie tun können
- 1Read and note the code, clear it and road test to see whether it comes back
- 2Make sure the connectors to the front and rear oxygen sensors are clean, firmly seated and free from oxidation
- 3Look for air leaks in the exhaust system, especially upstream of the front sensor
- 4If there is no leak, have a workshop with diagnostic equipment try replacing the oxygen sensors, since a damaged front or rear sensor can also cause the fault
Symptome, die Sie bemerken können1
- The malfunction indicator lamp (MIL) is lit
Was der Fehler beeinflussen kann2
- Oxygen sensor control is switched off
- Catalytic converter diagnostics are switched off
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.