Was bedeutet der Fehlercode ECM-P049012?

Diagnose und Fehlercodedefinition für ECM-P049012 (Volvo C30 (2007–2013), Volvo C70 (2006–2013), Volvo C70 (2006–2013)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P049012 - Exhaust Gas Recirculation A Control Circuit High. General Electrical Failures. Circuit short to battery

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

12 Modelle

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Modelle nach Baujahr und Motor anzeigen (40)

Was bedeutet der Fehlercode?

The code concerns a short to supply voltage in the EGR circuit, where the signal wire has received voltage. Its internal power stage drives the EGR motor, and the ECM checks that signal while the engine runs. The causes are a short-circuited signal wire, a damaged position sensor or a damaged EGR valve.

Mögliche Ursachen

Signal wire short-circuited to supply voltage
Damaged position sensor
Damaged EGR valve

Was Sie tun können

1Use a multimeter to check that the signal wire has no contact with supply voltage
2Follow the signal wire from the EGR valve and look for chafing or pinch damage
3If you have a diagnostic tool, activate the EGR valve and see whether it moves freely and the position sensor value follows
4Clean the EGR valve if it is sooty, and check that it does not bind
5Replace a damaged EGR valve, have a workshop adapt it, then clear the code and road test
6If the fault remains although the signal wire is sound, have a workshop check the position sensor

Symptome, die Sie bemerken können3

Uneven idling
Poor performance or the car lacks power
The car hesitates or runs jerkily

Was der Fehler beeinflussen kann1

EGR control is lost

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