VOLVO
ECM-850C - 5 volt power supply. Signal too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (9)
- Volvo C30 (2007–2013)2007Kun motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Kun motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Kun motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Kun motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo S40 (2004–2013)2008Kun motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Kun motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Kun motor: B5254T7
Hva betyr feilkoden?
The engine control module (ECM) monitors the internal voltage circuits that feed the components, and the code is set when the voltage in one circuit is too high. The check runs with the ignition on. The fault can lie in a sensor, in the wire feeding it, or in the control module itself.
Mulige årsaker
- Voltage cable to a sensor shorted to voltage
- Damaged sensor
- Damaged engine control module (ECM)
Hva du kan gjøre
- 1Read the code, clear it and road test the car to see whether it comes back
- 2Check the sensor voltage cable for chafing and contact with voltage; use a multimeter to check that the cable has no contact with battery voltage
- 3Check the sensors on the same circuit for damage and poor contact
- 4If you have diagnostic equipment, read the sensor values in live data with the ignition on; a sensor showing a too-high value points to where the fault is
- 5If the code does not clear, have a workshop decide whether the control module needs replacing
Symptomer du kan merke3
- Poor performance
- The engine misfires
- The engine is hard to start
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.