VOLVO
ECM-989A - Engine control module (ECM). Signal missing
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerS40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
Although the code is named signal missing, it concerns the module's internal voltage references, the reference voltages the module uses for its own measurements. The code is set when the module detects a fault in them, which points to the module itself rather than to a sensor.
Mulige årsaker
- Damaged engine control module (ECM)
Hva du kan gjøre
- 1Read the code, clear it and start the engine to see whether it returns
- 2Check that the battery is in good condition and that the engine control module connectors are fully seated
- 3If the fault returns after clearing, the module is damaged and should be replaced; leave this to a workshop
Symptomer du kan merke1
- Malfunction indicator lamp (MIL) is on
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.