VOLVO
ECM-0400 - EGR control. Flow fault
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
3 modeleC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Pokaż modele wg rocznika i silnika (13)
- Volvo C30 (2007–2013)2007–2009Tylko silnik: B4184S11, B4184S8, B4204S3
- Volvo C30 (2007–2013)2010Tylko silnik: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo C30 (2007–2013)2011–2013Tylko silnik: B4204S3, B4204S4
- Volvo S40 (2004–2013)2005Tylko silnik: B4184S11
- Volvo S40 (2004–2013)2006Tylko silnik: B4184S11, B4184S8
- Volvo S40 (2004–2013)2007–2009Tylko silnik: B4184S11, B4184S8, B4204S3
- Volvo S40 (2004–2013)2010Tylko silnik: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo S40 (2004–2013)2011–2012Tylko silnik: B4204S3, B4204S4
- Volvo V50 (2004–2013)2005Tylko silnik: B4184S11
- Volvo V50 (2004–2013)2006Tylko silnik: B4184S11, B4184S8
- Volvo V50 (2004–2013)2007–2009Tylko silnik: B4184S11, B4184S8, B4204S3
- Volvo V50 (2004–2013)2010Tylko silnik: B4184S11, B4184S8, B4204S3, B4204S4
- Volvo V50 (2004–2013)2011–2012Tylko silnik: B4204S3, B4204S4
Co oznacza ten kod błędu?
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.
Możliwe przyczyny
- EGR valve stuck in the open position
- Blocked exhaust system
- Damaged control to the EGR valve
Co możesz zrobić
- 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
Objawy, które możesz zauważyć2
- The malfunction indicator lamp (MIL) is lit
- Uneven idle
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.