VOLVO
ECM-830B - Alternator control module (ACM). Faulty communication
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
4 modeleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Pokaż modele wg rocznika i silnika (9)
- Volvo C30 (2007–2013)2007Tylko silnik: B5254T3
- Volvo C30 (2007–2013)2008–2013Tylko silnik: B5254T7
- Volvo C70 (2006–2013)2006–2007Tylko silnik: B5254T3
- Volvo C70 (2006–2013)2008–2013Tylko silnik: B5254T7
- Volvo S40 (2004–2013)2005–2007Tylko silnik: B5254T3
- Volvo S40 (2004–2013)2008Tylko silnik: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Tylko silnik: B5254T7
- Volvo V50 (2004–2013)2005–2007Tylko silnik: B5254T3
- Volvo V50 (2004–2013)2008–2012Tylko silnik: B5254T7
Co oznacza ten kod błędu?
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.
Możliwe przyczyny
- 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
Co możesz zrobić
- 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
Objawy, które możesz zauważyć1
- The generator warning lamp (not charging) comes on while the engine runs
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.