VOLVO
ECM-830B - Alternator control module (ACM). Faulty communication
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 engine control module and the generator's control module (ACM) communicate over the LIN network, and that communication has been disturbed. The fault may be caused by poor contact, a break or short in the LIN wiring, a fault in another module on the network, or a generator that is not intended for LIN communication having been fitted. The generator not charging warning lamp may light when the engine runs. The fault applies to the C30, C70 (06-), S40 (04-) and V50.
Mögliche Ursachen
- Contact resistance and oxidation in the connections
- Short circuit between the LIN wires
- Open circuit in one of the LIN wires
- Internal fault in another control module on the same part of the LIN network
- Damaged generator control module (charge regulator)
- A generator with a control module not intended for LIN communication has been fitted
Was Sie tun können
- 1Read and note the code, clear it and switch the ignition on again to see whether it returns
- 2Has the generator or its control module been replaced recently? A generator not intended for LIN communication can cause the fault
- 3Check the connectors to the generator control module for contact resistance and oxidation
- 4Using a multimeter, check that the LIN wires are not broken or shorted to ground or supply voltage
- 5If the fault remains, have a workshop check the control modules on the LIN network and replace the generator control module if needed
Symptome, die Sie bemerken können1
- The generator warning lamp (not charging) comes on while the engine runs
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.