VOLVO
ECM-0400 - EGR control. Flow fault
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (13)
- Volvo C30 (2007–2013)2007–2009Kun motor: B4184S11, B4184S8, B4204S3
- Volvo C30 (2007–2013)2010Kun motor: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo C30 (2007–2013)2011–2013Kun motor: B4204S3, B4204S4
- Volvo S40 (2004–2013)2005Kun motor: B4184S11
- Volvo S40 (2004–2013)2006Kun motor: B4184S11, B4184S8
- Volvo S40 (2004–2013)2007–2009Kun motor: B4184S11, B4184S8, B4204S3
- Volvo S40 (2004–2013)2010Kun motor: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo S40 (2004–2013)2011–2012Kun motor: B4204S3, B4204S4
- Volvo V50 (2004–2013)2005Kun motor: B4184S11
- Volvo V50 (2004–2013)2006Kun motor: B4184S11, B4184S8
- Volvo V50 (2004–2013)2007–2009Kun motor: B4184S11, B4184S8, B4204S3
- Volvo V50 (2004–2013)2010Kun motor: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo V50 (2004–2013)2011–2012Kun motor: B4204S3, B4204S4
Hva betyr feilkoden?
The engine control module (ECM) compares the pressure in the intake pipe with the EGR control active against the pressure with it inactive. If the pressure changes too little, the control module interprets this as an EGR flow fault. The causes may be an EGR valve stuck open, a blocked exhaust system, or damaged control to the valve.
Mulige årsaker
- EGR valve stuck in the open position
- Blocked exhaust system
- Damaged control to the EGR valve
Hva du kan gjøre
- 1Read out the fault code, erase it and road-test to see whether it returns
- 2Look for damage and signs of blockage in the exhaust system, such as a pinched or deformed section
- 3Switch off the ignition and check the connector and wiring to the EGR valve for looseness, corrosion and chafing
- 4If you have a diagnostic tool, read the EGR valve position in live data at idle and see whether the value changes when the valve is controlled
- 5If the fault remains, have a workshop with diagnostic equipment check the EGR valve and its control
Symptomer du kan merke2
- The malfunction indicator lamp (MIL) is lit
- Uneven idle
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.