VOLVO
ECM-4433 - Immobilizer, communication fault. Signal faulty. Permanent fault
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerS40 (1996–2004), V40 (1996–2004)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The engine control module (ECM) has registered a communication fault with the immobilizer, the locking system that makes sure the engine can only be started with the correct key. The fault is permanent, so it is still present when you read the code. The code is set in the engine control module.
Mulige årsaker
- Signal wire shorted to supply voltage
- Signal wire shorted to ground
- Break in the signal wire
- Defective immobilizer
- Defective engine control module
Hva du kan gjøre
- 1Read off and note the fault code, erase it and check straight away whether it comes back
- 2Check that the harness between the engine control module and the immobilizer is not chafed, pinched or damaged
- 3Check that the connectors in the wire are firmly joined and free from oxidation
- 4Have a workshop with diagnostic equipment check the immobilizer and the engine control module, as they may need programming or replacement
Symptomer du kan merke1
- The engine does not start
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