VOLVO
ECM-P056100 - System Voltage Unstable. General Failure Information. No sub type information
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
8 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Vis modeller per årsmodell og motor (8)
- Volvo S60 (2011–)2014–2015Kun motor: D4204T5
- Volvo S80 (2007–)2014–2015Kun motor: D4204T5
- Volvo V40 (2013–)2015Kun motor: D4204T14
- Volvo V40 Cross Country (2013–)2015Kun motor: D4204T14
- Volvo V60 (2011–)2014–2015Kun motor: D4204T5
- Volvo V70 (2008–)2014–2015Kun motor: D4204T5
- Volvo XC60 (2009–)2014–2015Kun motor: D4204T5
- Volvo XC70 (2008–)2014–2015Kun motor: D4204T5
Hva betyr feilkoden?
The fault is stored when the engine control module (ECM) finds that the system voltage is unstable while the engine is running. The causes are most often the connections to the battery and the system relay, or the earth connection to the battery. The charging system and the battery can also be the cause.
Mulige årsaker
- Loose earth connection to the battery
- Contact resistance in the connections to the system relay
- Contact resistance in the connections to the battery
- Damaged power supply or charging system
- Damaged battery
Hva du kan gjøre
- 1Check that the battery terminals and cable lugs are tight and free of oxidation
- 2Check the earth connection to the battery for looseness and oxidation
- 3Check the contact block of the system relay for contact resistance and oxidation
- 4If a generator fault code is stored, troubleshoot that code first
- 5If you have diagnostic equipment: read the system voltage in live data with the engine running and check whether the value changes erratically
- 6If the connections are clean and tight, have a workshop check the battery and charging system with diagnostic equipment
Symptomer du kan merke1
- No noticeable symptoms for the driver
Hva feilen kan påvirke1
- Glow plug heating for the diesel engine is disabled
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