VOLVO
ECM-U012D00 - Lost Communication With Generator Control Module. General Failure Information. No sub type information
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
9 ModelleS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Modelle nach Baujahr und Motor anzeigen (18)
- Volvo S60 (2011–)2013Nur Motor: B5204T8, B5204T9, B5254T12, B5254T14
- Volvo S60 (2011–)2014–2015Nur Motor: B5204T8, B5204T9, B5254T12, B5254T14, D4204T5
- Volvo S80 (2007–)2013Nur Motor: B5254T12, B5254T14
- Volvo S80 (2007–)2014Nur Motor: B5254T12, B5254T14, D4204T5
- Volvo S80 (2007–)2015Nur Motor: D4204T5
- Volvo V40 (2013–)2013–2014Nur Motor: B5204T8, B5204T9, B5254T12, B5254T14
- Volvo V40 (2013–)2015Nur Motor: B5204T8, B5204T9, D4204T14
- Volvo V40 Cross Country (2013–)2013–2014Nur Motor: B5204T8, B5204T9, B5254T12, B5254T14
- Volvo V40 Cross Country (2013–)2015Alle Motoren außer: B4164T, B4204T11, D4162T, D5204T6
- Volvo V60 (2011–)2013Nur Motor: B5204T8, B5204T9
- Volvo V60 (2011–)2014Nur Motor: B5204T8, B5204T9, B5254T12, D4204T5
- Volvo V60 (2011–)2015Nur Motor: B5204T9, B5254T12, D4204T5
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2013Nur Motor: B5204T9
- Volvo V70 (2008–)2014–2015Nur Motor: B5204T9, D4204T5
- Volvo XC60 (2009–)2014Nur Motor: D4204T5
- Volvo XC60 (2009–)2015Nur Motor: B5204T9, B5254T12, B5254T14, D4204T5
- Volvo XC70 (2008–)2014–2015Nur Motor: D4204T5
Was bedeutet der Fehlercode?
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.
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
- Faulty alternator control module (ACM), including its charge regulator
- Alternator with a charge regulator that is not intended for LIN communication is fitted
Was Sie tun können
- 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
Symptome, die Sie bemerken können4
- 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
Was der Fehler beeinflussen kann1
- The alternator control module charges at a fixed voltage
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.