Was bedeutet der Fehlercode ECM-P300312?

Diagnose und Fehlercodedefinition für ECM-P300312 (Volvo V60 (2011–), Volvo V60 (2011–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

ECM-P300312 - A/C Shut Off Valve. General Electrical Failures. Circuit short to battery

System

Motorsteuergerät (ECM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

1 Modell

V60 (2011–)

Modelle nach Baujahr und Motor anzeigen (2)

Was bedeutet der Fehlercode?

The code concerns the shut-off valve in the A/C system, that is the evaporator cooling valve. The engine control module (ECM) monitors the valve all the time, and if it does not work the A/C function is affected. The code is set when the signal wire to the valve is shorted or has an open circuit.

Mögliche Ursachen

Mechanical fault on the valve
Electrical fault on the valve
Short circuit or open circuit in the wires to the valve

Was Sie tun können

1Check the connectors to the valve for contact resistance, looseness and oxidation
2Look for chafed wiring to the valve where it may have touched positive supply
3Use a multimeter to check that the wires to the valve have no contact with positive supply when the connector is unplugged
4Have a workshop check the valve if the fault remains after these checks

Symptome, die Sie bemerken können3

Temperature control or air conditioning does not work
The combustion engine runs in HYBRID mode more often than expected
Warning symbol and text message in the display

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