VOLVO
ECM-830B - Alternator control module (ACM). Faulty communication
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (9)
- Volvo C30 (2007–2013)2007Kun motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Kun motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Kun motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Kun motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo S40 (2004–2013)2008Kun motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Kun motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Kun motor: B5254T7
Hva betyr feilkoden?
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.
Mulige årsaker
- 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
Hva du kan gjøre
- 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
Symptomer du kan merke1
- The generator warning lamp (not charging) comes on while the engine runs
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