VOLVO
ECM-1408 - EGR control. Faulty signal
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 intake pressure with EGR control active and inactive. If the pressure does not change enough when EGR control is active, the fault is set. It can be caused by the EGR valve being stuck open, a blocked exhaust system or a damaged control to the EGR valve.
Mulige årsaker
- EGR valve stuck in the open position
- Blocked exhaust system
- Damaged control of the EGR valve
Hva du kan gjøre
- 1Read the fault code, clear it and test drive to see whether it returns
- 2Check that the exhaust system is not clogged or damaged, so the exhaust gases can flow freely
- 3Check that the EGR valve is not stuck by soot and dirt, since that can cause the fault
- 4Check the wiring and connectors to the EGR valve for chafing, breaks and contact resistance
- 5If you have a diagnostic tool: activate the EGR valve at idle and check that the intake pressure changes clearly; if it does not, the valve may be stuck
- 6If none of this gives a fault: have a workshop check the EGR valve and its control
Symptomer du kan merke2
- Engine warning lamp comes on
- Rough idle
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