VOLVO
ECM-0125 - Lambda probe signal. Faulty signal
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS40 (1996–2004), V40 (1996–2004)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
The front oxygen sensor is sending an incorrect signal to the engine control module. The fault is most often caused by poor contact, air entering the intake, or a break or short in the wiring, but the sensor itself may be defective.
Mögliche Ursachen
- Contact resistance in the connections
- Signal wire shorted to ground
- Break in the signal wire, or the wire shorted to supply voltage
- Break in the ground wire, or the wire shorted to supply voltage
- Air leak in the intake system
- Defective front oxygen sensor
Was Sie tun können
- 1Switch the ignition off, then inspect the plugs at the control module and at the front oxygen sensor for poor contact and oxidation
- 2Check the intake system for air leaks, for example at hoses and connections
- 3Use a multimeter to check that the signal wire has no short to ground and does not break when you move the wiring
- 4If no wiring fault is found, have a workshop replace the front oxygen sensor
Symptome, die Sie bemerken können1
- Malfunction indicator lamp (MIL) lights up
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.