VOLVO
ECM-444D - Exhaust gas recirculation (EGR) control. Offset error
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
3 ModelleC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (3)
Was bedeutet der Fehlercode?
The engine control module (ECM) finds that the EGR valve or its wiring gives a shifted position, an offset, and therefore EGR control goes wrong. The code is set when the reading is clearly out of line, and the EGR valve and its wiring are the most likely places to look.
Mögliche Ursachen
- Loose connections, contact resistance or oxidation at the EGR valve terminals
- Wiring to the EGR valve shorted to supply voltage
- Wiring to the EGR valve shorted to ground
- Break in the wiring to the EGR valve
- EGR valve sticks or has jammed
- Damaged EGR valve
Was Sie tun können
- 1Erase the fault code only after you have noted it, then test-drive the car
- 2Check the EGR valve connector for play, contact resistance and oxidation
- 3Check that the EGR valve is not clogged with dirt or soot, since it may then stick
- 4Look for breaks, chafing and shorts to ground or supply voltage in the wiring to the EGR valve
- 5Have a workshop check whether the engine control module software is up to date, and remedy the valve as needed
Symptome, die Sie bemerken können2
- Emissions warning lamp lit
- Message shown in the display
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.