Was bedeutet der Fehlercode ECM-0406?

Diagnose und Fehlercodedefinition für ECM-0406 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C70 (2006–2013)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-0406 - Position sensor (exhaust gas recirculation (EGR)). Signal too high

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

4 Modelle

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Modelle nach Baujahr und Motor anzeigen (10)

Was bedeutet der Fehlercode?

The control module monitors the EGR valve function and sets the fault if the signal from the position sensor is too high. The causes may be poor contact in the connections, an open circuit in the supply or signal wire, a signal wire shorted to voltage, or a damaged EGR valve.

Mögliche Ursachen

Contact resistance, oxidation or poor contact in the connections
Open circuit in the supply or signal wire
Signal wire short-circuited to voltage
Damaged EGR valve

Was Sie tun können

1Switch off the ignition and check the connections to the EGR valve for poor contact, contact resistance and oxidation
2Look for chafing on the signal wire near the EGR valve, and use a multimeter to check that it is not shorted to voltage
3Also use a multimeter to check that the supply to the position sensor has no open circuit
4If you have a diagnostic tool, read the EGR position sensor value in live data at idle and see whether it stays consistently high
5If the fault remains, have a workshop with diagnostic equipment check the EGR valve

Symptome, die Sie bemerken können1

The check engine lamp lights or behaves abnormally

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.