VOLVO
ECM-U012D00 - Lost Communication With Generator Control Module. General Failure Information. No sub type information
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
9 modeliS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Pokaż modele wg rocznika i silnika (18)
- Volvo S60 (2011–)2013Tylko silnik: B5204T8, B5204T9, B5254T12, B5254T14
- Volvo S60 (2011–)2014–2015Tylko silnik: B5204T8, B5204T9, B5254T12, B5254T14, D4204T5
- Volvo S80 (2007–)2013Tylko silnik: B5254T12, B5254T14
- Volvo S80 (2007–)2014Tylko silnik: B5254T12, B5254T14, D4204T5
- Volvo S80 (2007–)2015Tylko silnik: D4204T5
- Volvo V40 (2013–)2013–2014Tylko silnik: B5204T8, B5204T9, B5254T12, B5254T14
- Volvo V40 (2013–)2015Tylko silnik: B5204T8, B5204T9, D4204T14
- Volvo V40 Cross Country (2013–)2013–2014Tylko silnik: B5204T8, B5204T9, B5254T12, B5254T14
- Volvo V40 Cross Country (2013–)2015Wszystkie silniki oprócz: B4164T, B4204T11, D4162T, D5204T6
- Volvo V60 (2011–)2013Tylko silnik: B5204T8, B5204T9
- Volvo V60 (2011–)2014Tylko silnik: B5204T8, B5204T9, B5254T12, D4204T5
- Volvo V60 (2011–)2015Tylko silnik: B5204T9, B5254T12, D4204T5
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2013Tylko silnik: B5204T9
- Volvo V70 (2008–)2014–2015Tylko silnik: B5204T9, D4204T5
- Volvo XC60 (2009–)2014Tylko silnik: D4204T5
- Volvo XC60 (2009–)2015Tylko silnik: B5204T9, B5254T12, B5254T14, D4204T5
- Volvo XC70 (2008–)2014–2015Tylko silnik: D4204T5
Co oznacza ten kod błędu?
The engine control module (ECM) controls the alternator charging voltage via LIN communication, on request from the central electronics control module (CEM) over CAN. The code is set when the engine control module detects that communication with the alternator control module (ACM) has stopped.
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
- Faulty alternator control module (ACM), including its charge regulator
- Alternator with a charge regulator that is not intended for LIN communication is fitted
Co możesz zrobić
- 1Read the codes and first fix other LIN-related codes. Then clear this code
- 2Check that the fuses are intact and that the battery is well charged
- 3If the alternator has recently been replaced: check that it is intended for LIN communication
- 4Check the alternator and engine control module connections for oxidation. Look for chafed LIN wires and use a multimeter to check for breaks or shorts
- 5If you have a diagnostic tool: check the fault status indicators and freeze-frame values to see when the fault occurred
- 6If the fault returns: have a workshop with diagnostic equipment check the alternator control module and the alternator
Objawy, które możesz zauważyć4
- The battery is dead or shows low voltage
- The engine is hard to start and the starter turns over slowly
- The engine lacks power, especially when the car is moving off
- The engine hesitates, surges or runs unevenly
Na co może wpływać usterka1
- The alternator control module charges at a fixed voltage
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.