VOLVO
ECM-P250300 - Charging System Voltage Low. General Failure Information. No sub type information
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerS60 (2011–), S80 (2007–), V70 (2008–)
Vis modeller per årsmodell og motor (9)
- Volvo S60 (2011–)2011–2012Kun motor: B5254T5
- Volvo S80 (2007–)2007–2008Kun motor: B5254T6
- Volvo S80 (2007–)2009Kun motor: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Kun motor: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Kun motor: B5254T10
- Volvo V70 (2008–)2008Kun motor: B5254T6
- Volvo V70 (2008–)2009Kun motor: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Kun motor: B5254T10, B5254T11
- Volvo V70 (2008–)2012Kun motor: B5254T10
Hva betyr feilkoden?
The alternator control module (ACM) reports to the engine control module when it detects an electrical fault in the generator, and the code is then stored. Worn carbon brushes or slip rings may be the cause. The code can also have been stored after a charger with excessive charge voltage was connected.
Mulige årsaker
- A charger delivering excessive charge voltage was connected earlier
- Worn carbon brushes in the generator
- Damaged alternator control module (ACM, charge regulator)
- Damaged generator
Hva du kan gjøre
- 1If you have a diagnostic tool, read the battery voltage and the target value for the generator charge voltage with the engine running
- 2Switch on some high-current loads, such as the blower fan and high beam, and see whether the battery and charging cope
- 3If the battery and charging cannot cope, the fault is probably permanent; if they can, the fault may have been intermittent
- 4Have a workshop check the generator carbon brushes and slip rings; if they are worn, the control module or the generator must be replaced
- 5Ask yourself whether a battery charger has been connected to the battery before; a charger with too high charge voltage can cause this code
Symptomer du kan merke5
- The "Generator not charging" warning lamp lights with the engine running
- The battery discharges
- The starter motor turns the engine slowly
- The electrolyte in the battery boils with the engine running
- The headlamp bulb blows
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