VOLVO
ECM-830D - Alternator control module (ACM). Signal too high
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
4 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (9)
- Volvo C30 (2007–2013)2007Nur Motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Nur Motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Nur Motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Nur Motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo S40 (2004–2013)2008Nur Motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Nur Motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Nur Motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Nur Motor: B5254T7
Was bedeutet der Fehlercode?
The generator's control module (ACM) reports an electrical fault in the generator to the engine control module, and that is what sets the code. It may be caused by worn brushes, a damaged generator control module or a damaged generator, or by a battery charger with too high a charge voltage having been connected. The fault applies to the C30, C70 (06-), S40 (04-) and V50.
Mögliche Ursachen
- A battery charger with too high a charge voltage was connected earlier
- Worn brushes (carbon)
- Damaged generator control module (charge regulator)
- Damaged generator
Was Sie tun können
- 1Read and note the code, clear it and road test to see whether it returns
- 2Start the engine and read the battery voltage, if you have a diagnostic tool
- 3Switch on a few high-current consumers and see whether the battery voltage stays steady
- 4Listen for unusual noise from the generator and check whether the generator not charging lamp comes on while the engine runs
- 5Have a workshop replace the generator or its control module if the brushes or slip rings are worn or if the fault remains
Symptome, die Sie bemerken können5
- The generator warning lamp (not charging) comes on while the engine runs
- The battery discharges
- Low rotation speed in the starter motor
- The electrolyte in the battery boils when the engine runs
- The headlamp bulb blows
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.