VOLVO
ECM-0340 - Camshaft position (CMP) 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:
5 modellerC30 (2007–2013), S40 (1996–2004), S40 (2004–2013), V40 (1996–2004), V50 (2004–2013)
Vis modeller per årsmodell og motor (9)
- Volvo C30 (2007–2013)2007Kun motor: B4184S11, B4184S8, B4204S3
- Volvo S40 (1996–2004)2001–2004Kun motor: B4184SJ
- Volvo S40 (2004–2013)2005Kun motor: B4184S11
- Volvo S40 (2004–2013)2006Kun motor: B4184S11, B4184S8
- Volvo S40 (2004–2013)2007Kun motor: B4184S11, B4184S8, B4204S3
- Volvo V40 (1996–2004)2001–2004Kun motor: B4184SJ
- Volvo V50 (2004–2013)2005Kun motor: B4184S11
- Volvo V50 (2004–2013)2006Kun motor: B4184S11, B4184S8
- Volvo V50 (2004–2013)2007Kun motor: B4184S11, B4184S8, B4204S3
Hva betyr feilkoden?
The engine control module (ECM) monitors the camshaft sensor signal and treats it as faulty if it does not pulse as it should or deviates abnormally. The fault can be set both at start and while driving, and the engine may then fail to start. The causes are contact resistance in the connections, open or short circuits in the wiring, or a damaged camshaft sensor.
Mulige årsaker
- Contact resistance in the connections
- Open circuit in the supply or ground wire, or ground wire shorted to voltage
- Open circuit in the signal wire, or signal wire shorted to ground or voltage
- Defective or damaged camshaft position (CMP) sensor
Hva du kan gjøre
- 1Read out the fault code, erase it and road-test to see whether it returns
- 2Switch off the ignition and check the camshaft sensor and control module connectors for looseness, contact resistance and oxidation
- 3Look for chafed wires or pinched areas in the camshaft sensor wiring, especially where it runs close to the engine
- 4Use a multimeter to check that the wires to the camshaft sensor have no open circuit and are not shorted to ground or voltage
- 5If you have a diagnostic tool, compare the camshaft signal with the crankshaft signal in live data during a start attempt
- 6If the wiring is intact, have a workshop with diagnostic equipment check the camshaft sensor and replace it if needed
Symptomer du kan merke2
- The engine does not start
- The malfunction indicator lamp (MIL) is lit
Hva feilen kan påvirke1
- Fuel cut-off may not take place
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