Was bedeutet der Fehlercode ECM-P123811?

Diagnose und Fehlercodedefinition für ECM-P123811 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P123811 - Fuel Pump Secondary Circuit (Fuel Pump Driver Module). General Electrical Failures. Circuit short to ground

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

8 Modelle

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Modelle nach Baujahr und Motor anzeigen (8)

Was bedeutet der Fehlercode?

The code is set when the engine control module (ECM) finds an electrical fault in the internal circuit that controls the fuel flow and fuel pressure control valves. Here the fault is a short circuit to ground in that circuit.

Mögliche Ursachen

Open circuit or short circuit to supply voltage
Open circuit or short circuit on the ground wire
Fuel pressure control valve is damaged
Fuel flow control valve is damaged
The code may be caused by a damaged fuse
The engine control module (ECM) itself is faulty

Was Sie tun können

1Check that the fuses are intact, since a damaged fuse can cause this code
2Clear the code and road test to see whether it returns
3Check the connectors to the fuel pressure control valve and the fuel flow control valve for contact resistance and oxidation
4Look at the wires to the valves for breaks and chafing
5If you find no fault: have a workshop check the valves, the circuit and the engine control module

Symptome, die Sie bemerken können4

Unusual noise while driving, either occasionally or all the time
Uneven idle
The engine stalls at idle, either occasionally or all the time
The engine stalls at steady speed

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