VOLVO
ECM-P120429 - Cylinder #4 Injector Circuit Open/Shorted. General Signal Failures. Signal signal invalid
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS80 (2007–), V70 (2008–)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
The code for cylinder 4 is set when the engine control module (ECM) sees that the signal to the injector is too high, too low or otherwise faulty. The cause may be poor contact, or a short or open circuit in the wiring.
Mögliche Ursachen
- Contact resistance or oxidation in the connections
- Short circuit or open circuit on the wires to the injector
Was Sie tun können
- 1Read the code and note that it applies to cylinder 4
- 2Check that the connector at injector cylinder 4 is firmly seated and free from oxidation
- 3Inspect the wire to cylinder 4 for chafing, pinching and breaks
- 4If you have a diagnostic tool: activate the injector for cylinder 4 and listen for it operating
- 5If you find no fault: have a workshop check the injector
Symptome, die Sie bemerken können3
- The engine stalls on start
- A clicking sound, or no sound at all, when starting is attempted
- Poor performance and lack of power while driving
Was der Fehler beeinflussen kann1
- Injection stops
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.