VOLVO
ECM-0225 - Throttle position sensor. 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?
The engine control module compares throttle position sensor circuit 2 with circuit 1 and logs a fault when the circuit 2 signal is too high or too low. The fault affects how the control module reads throttle position, which can in turn limit engine power and cruise control. Causes are contact problems, an open or shorted signal wire, or a defective sensor.
Mulige årsaker
- Contact resistance in the connections
- Open circuit in the circuit 2 signal wire, or short to ground or supply voltage
- Defective throttle position sensor
Hva du kan gjøre
- 1Read the fault code, clear it and road test to see whether it returns
- 2Check that the connector at the throttle position sensor is fully engaged and free from oxidation
- 3Follow the circuit 2 signal wire and look for breaks, chafing and pinched sections
- 4With the connector unplugged, use a multimeter to check that the signal wire has no connection to ground (the body)
- 5If you have a diagnostic tool, watch in live data whether both throttle position sensor values change smoothly as the accelerator is pressed slowly from released to fully down
- 6If the fault remains, have a workshop with diagnostic equipment check the sensor and decide whether it should be replaced
Symptomer du kan merke4
- Malfunction indicator lamp (MIL) lit
- Reduced performance
- Cruise control not working at all
- High fuel consumption
Hva feilen kan påvirke3
- No combustion in lean mode
- Cruise control is switched off
- Engine power is limited
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