VOLVO
ECM-850D - 5 volt power supply. Signal too low
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 sets the code when the voltage in one circuit is too low. The check runs with the ignition on. The cause may be a short to ground in the wire, a damaged sensor or a damaged control module.
Mulige årsaker
- Voltage cable to a sensor shorted to ground
- Damaged sensor
- Damaged control module
Hva du kan gjøre
- 1Read the code, clear it and check that it is not active after the road test
- 2Check the sensor voltage cable for chafing and contact with ground; use a multimeter to confirm the cable has no contact with the body
- 3Check that the sensor connectors are fully engaged and free from oxidation
- 4If you have diagnostic equipment, read the sensor values in live data with the ignition on and see whether any one gives a too-low reading
- 5If the code remains after these checks, have a workshop decide whether the control module needs replacing
Symptomer du kan merke3
- The starter motor does not turn
- The starter cranks but the engine will not start
- Poor performance
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