VOLVO
ECM-6620 - Glow plug control. Faulty signal
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 engine control module has registered a faulty signal from the glow plug relay. It can also be set when the glow plug circuit misbehaves or sits outside its normal signal range.
Mulige årsaker
- Short to supply voltage in the glow plug wires
- Short circuit in a glow plug
- Damaged glow plug relay
Hva du kan gjøre
- 1Check that the connectors at the glow plug relay and the glow plugs are secure and clean
- 2Use a multimeter to check that the wires between the relay and the glow plugs are not shorted to supply voltage
- 3Have a workshop activate the glow plug relay and check that battery voltage drops when it does
- 4Replace the glow plug relay if the wiring is sound but the fault remains
Symptomer du kan merke5
- Poor performance and lack of power, especially when pulling away from a standstill
- The engine hesitates, surges or runs unevenly during acceleration
- The engine hesitates or runs unevenly at a steady speed
- The engine is hard to start and cranks slowly when cold
- The engine does not start and only turns over
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