VOLVO
ECM-0620 - Generator. Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (3)
Hva betyr feilkoden?
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.
Mulige årsaker
- 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
Hva du kan gjøre
- 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
Symptomer du kan merke1
- No noticeable symptoms for the driver
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