VOLVO
ECM-0620 - Generator. Signal too low
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
3 ModelleC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (3)
Was bedeutet der Fehlercode?
The ECM keeps an eye on the generator through a signal wire and sets the code when it registers a fault in how the generator is controlled. The causes given relate mainly to the signal wire to the generator, so the wiring is the first place to look.
Mögliche Ursachen
- Open circuit in the signal wire to the generator
- Signal wire short-circuited to battery voltage or reference voltage
- Signal wire short-circuited to earth
Was Sie tun können
- 1With the ignition off, unplug the generator connector and check that its terminals are tight and free from oxidation
- 2Check the signal wire to the generator for breaks and chafing
- 3Use a multimeter to check that the signal wire has no contact with earth (the body) or with battery voltage
- 4If the wiring is intact and the fault remains, have a workshop assess whether the generator or its control needs replacing
Symptome, die Sie bemerken können1
- No noticeable symptoms for the driver
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.