ECM-400C - Three-way catalytic converter (TWC) efficiency, bank 1. Signal too high
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:
9 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (18)
- Volvo C30 (2007–2013)2007Nur Motor: B5254T3
- Volvo C70 (2006–2013)2006–2007Nur Motor: B5254T3
- Volvo S40 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo S60 (2001–2009)2005–2006Nur Motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2007Nur Motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2008–2009Nur Motor: B5204T5, B5244T5, B5254T2
- Volvo S80 (1999–2006)2005–2006Nur Motor: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo V50 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo V70 (2000–2008)2005Nur Motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2006–2007Nur Motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2008Nur Motor: B5254T2
- Volvo V70 XC / XC70 (2001–2007)2005Alle Motoren außer: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Nur Motor: B5244T4, B5254T2
- Volvo V70 XC / XC70 (2001–2007)2007Nur Motor: B5254T2
- Volvo XC90 (2003–)2005–2006Nur Motor: B5254T2, B6294T
- Volvo XC90 (2003–)2007–2012Nur Motor: B5254T2
- Volvo XC90 (2003–)2013–2014Nur Motor: B5254T9
- Volvo XC90 (2003–)2015
Was bedeutet der Fehlercode?
The efficiency of the catalytic converter on bank 1 deviates too much, according to the engine control module. It compares the signal from the rear oxygen sensor with the front one, and when the difference becomes too large the code is set while driving. The cause may be misfiring, a leak in the intake or exhaust system, faulty fuel pressure, uneven compression or a damaged catalytic converter.
Mögliche Ursachen
- Misfiring
- Leakage in the intake system
- Leakage in the exhaust system
- Faulty fuel pressure
- Uneven compression
- Damaged catalytic converter
Was Sie tun können
- 1First check whether there are codes for misfiring, and deal with those before this one
- 2Check the spark plugs for damage to the insulation, since misfiring can cause the same fault
- 3Look for leaks in the intake system and the exhaust system, for example at hoses, joints and gaskets
- 4Have a workshop check fuel pressure, residual pressure and compression with diagnostic equipment
- 5If the fault remains after this: have a workshop try a new oxygen sensor and then a new catalytic converter
Symptome, die Sie bemerken können1
- Malfunction indicator lamp is lit
Was der Fehler beeinflussen kann2
- Rear oxygen sensor control is switched off
- Rear long-term fuel trim is disabled
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.