VOLVO
ECM-1223 - Electronic throttle module communication. Faulty signal
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?
Communication between the engine control module and the throttle module control unit is missing or wrong. The code is set, and the idle speed may be higher than normal. The fault can lie in the connectors, the communication wires or the throttle module control unit.
Mulige årsaker
- Contact resistance in the connections
- Open circuit in the signal wires between the engine control module and the throttle module control unit
- Signal wires shorted to ground or supply voltage
- Defective throttle module control unit
Hva du kan gjøre
- 1Check the connectors on the throttle relay, the throttle control unit and the engine control module for contact resistance and oxidation
- 2Use a multimeter to check that the signal wires between the engine control module and the throttle control unit are not broken or shorted to ground or supply voltage
- 3Clear the code and road test to see whether it returns
- 4If nothing is found, an intermittent fault or a faulty throttle control unit is likely, and a workshop should check it
Symptomer du kan merke2
- Malfunction indicator lamp on
- Idle speed is high
Hva feilen kan påvirke1
- Idle speed is raised
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.