VOLVO
ECM-0490 - EGR control. Signal too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (10)
- Volvo C30 (2007–2013)2007Kun motor: D4204T
- Volvo C30 (2007–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
- Volvo C70 (2006–2013)2008Kun motor: D4204T
- Volvo C70 (2006–2013)2009–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
- Volvo S40 (2004–2013)2004–2006Kun motor: D4204T, D4204T2
- Volvo S40 (2004–2013)2007Kun motor: D4204T
- Volvo S40 (2004–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
- Volvo V50 (2004–2013)2004–2006Kun motor: D4204T, D4204T2
- Volvo V50 (2004–2013)2007Kun motor: D4204T
- Volvo V50 (2004–2013)2008–2010Kun motor: D4204T · Kun girkasse: MMT6, MPS6
Hva betyr feilkoden?
The engine control module monitors EGR control. A fault in the valve or its wiring that causes incorrect EGR control sets the code. The causes may be poor contact, the valve sticking from dirt and soot, an open or shorted wire, or a damaged valve.
Mulige årsaker
- Poor contact or oxidation at the EGR valve connections
- The EGR valve sticks because of dirt or soot
- Open circuit in the cable to the EGR valve
- Cable to the EGR valve shorted to ground or voltage
- Damaged EGR valve
Hva du kan gjøre
- 1Read out the fault code, erase it and road-test to see whether it returns
- 2Look at the EGR valve for dirt and soot, since a valve that sticks can cause the fault
- 3Switch off the ignition and check the valve connector for looseness, contact resistance and oxidation
- 4Use a multimeter to check that the cable to the EGR valve has no open circuit and is not shorted to ground or voltage
- 5If the fault remains, have a workshop with diagnostic equipment check the EGR valve and its wiring
Symptomer du kan merke1
- The check engine lamp lights or behaves abnormally
Hva feilen kan påvirke1
- EGR control is switched off
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.