VOLVO
ECM-0315 - Impulse sensor. Faulty signal
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
3 modellerC30 (2007–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (3)
Hva betyr feilkoden?
The engine control module (ECM) adjusts ignition timing with self-learning functions that compensate for deviations from normal values. Once these adjustments reach the end of their range, the module treats it as a fault in the impulse sensor. The fault is checked while driving, and the cause may be poor contact, a damaged impulse sensor or a damaged flywheel.
Mulige årsaker
- Contact resistance or oxidation in the connections to the impulse sensor
- Damaged impulse sensor
- Damaged flywheel
Hva du kan gjøre
- 1Read out the fault code, erase it and road-test to see whether it returns
- 2Check the impulse sensor connector, clean it if it is oxidised and make sure it is seated properly
- 3If you have a diagnostic tool, read the crankshaft speed signal in live data and check that the value follows engine speed evenly during a road test
- 4Road-test the car after the work, since the fault is only checked while driving
- 5If the fault remains, have a workshop with diagnostic equipment check the impulse sensor and the flywheel
Symptomer du kan merke1
- The malfunction indicator lamp (MIL) is lit
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