VOLVO
ECM-P250300 - Charging System Voltage Low. General Failure Information. No sub type information
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
3 ModelleS60 (2011–), S80 (2007–), V70 (2008–)
Modelle nach Baujahr und Motor anzeigen (9)
- Volvo S60 (2011–)2011–2012Nur Motor: B5254T5
- Volvo S80 (2007–)2007–2008Nur Motor: B5254T6
- Volvo S80 (2007–)2009Nur Motor: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Nur Motor: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Nur Motor: B5254T10
- Volvo V70 (2008–)2008Nur Motor: B5254T6
- Volvo V70 (2008–)2009Nur Motor: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Nur Motor: B5254T10, B5254T11
- Volvo V70 (2008–)2012Nur Motor: B5254T10
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- A charger delivering excessive charge voltage was connected earlier
- Worn carbon brushes in the generator
- Damaged alternator control module (ACM, charge regulator)
- Damaged generator
Was Sie tun können
- 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
Symptome, die Sie bemerken können5
- 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
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.