VOLVO
ECM-U046900 - Invalid Data Received From Starter/Generator Control Module. General Failure Information. No sub type information
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
10 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Vis modeller per årsmodell og motor (35)
- Volvo S60 (2011–)2011–2012Kun motor: B6304T4
- Volvo S60 (2011–)2013Kun motor: B5204T8, B5204T9, B5254T12, B5254T14, B6304T4
- Volvo S60 (2011–)2014Alle motorer unntatt: B4164T, B4164T2, B4164T3, B4204T7, D4162T, D5204T3, D5204T7, D5244T11, D5244T15
- Volvo S60 (2011–)2015Alle motorer unntatt: B4164T, B4164T2, B4164T3, D4162T, D5204T3, D5204T7, D5244T11, D5244T15, D5244T23
- Volvo S80 (2007–)2008–2009Kun motor: B4204S3, B4204S4
- Volvo S80 (2007–)2010Kun motor: B4204S3, B4204S4, B6304T2, B6324S, B8444S
- Volvo S80 (2007–)2011Kun motor: B4204S3, B4204S4, B6304T4, B6324S5, B8444S
- Volvo S80 (2007–)2012Kun motor: B6304T4, B6324S5
- Volvo S80 (2007–)2013Kun motor: B5254T12, B5254T14, B6304T4, B6324S5
- Volvo S80 (2007–)2014Kun motor: B4204T11, B4204T12, B4204T15, B5254T12, B5254T14, B6304T4, B6324S5, D4204T5
- Volvo S80 (2007–)2015Alle motorer unntatt: B4164T, B6324S4, D4162T, D5204T3, D5244T15
- Volvo V40 (2013–)2013–2014Kun motor: B5204T8, B5204T9, B5254T12, B5254T14
- Volvo V40 (2013–)2015Kun motor: B4204T11, B5204T8, B5204T9, D4204T14
- Volvo V40 Cross Country (2013–)2013–2014Kun motor: B5204T8, B5204T9, B5254T12, B5254T14
- Volvo V40 Cross Country (2013–)2015Alle motorer unntatt: B4164T, D4162T, D5204T6
- Volvo V60 (2011–)2011–2012Kun motor: B6304T4
- Volvo V60 (2011–)2013Kun motor: B5204T8, B5204T9, B6304T4
- Volvo V60 (2011–)2014Kun motor: B4204T11, B4204T12, B4204T15, B4204T9, B5204T8, B5204T9, B5254T12, B6304T4, D4204T5
- Volvo V60 (2011–)2015Kun motor: B4204T11, B4204T12, B4204T15, B4204T9, B5204T9, B5254T12, B6304T3, B6304T4, B6304T5, D4204T5
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2008–2009Kun motor: B4204S3, B4204S4
- Volvo V70 (2008–)2010Kun motor: B4204S3, B4204S4, B6304T2, B6324S
- Volvo V70 (2008–)2011Kun motor: B4204S3, B4204S4, B6304T4, B6324S5
- Volvo V70 (2008–)2012Kun motor: B6304T4, B6324S5
- Volvo V70 (2008–)2013Kun motor: B5204T9, B6304T4, B6324S5
- Volvo V70 (2008–)2014Kun motor: B4204T11, B5204T9, B6304T4, B6324S5, D4204T5
- Volvo V70 (2008–)2015Kun motor: B4204T11, B5204T9, B6304T4, D4204T5
- Volvo XC60 (2009–)2010Kun motor: B6304T2, B6324S
- Volvo XC60 (2009–)2011–2013Kun motor: B6304T4, B6324S5
- Volvo XC60 (2009–)2014Kun motor: B4204T10, B4204T11, B4204T12, B4204T15, B4204T9, B6304T4, B6324S5, D4204T5
- Volvo XC60 (2009–)2015Alle motorer unntatt: B4204T7, B6324S4, D5204T3, D5204T7, D5244T11, D5244T12, D5244T15, D5244T17, D5244T23
- Volvo XC70 (2008–)2010Kun motor: B6304T2, B6324S
- Volvo XC70 (2008–)2011–2013Kun motor: B6304T4, B6324S5
- Volvo XC70 (2008–)2014–2015Kun motor: B4204T11, B6304T4, B6324S5, D4204T5
- Volvo XC90 (2003–)2011–2014Kun motor: B6324S5
Hva betyr feilkoden?
The engine control module (ECM) controls the alternator's charge voltage over LIN, on request from the central electronic module (CEM) sent over CAN. The code is set when the ECM detects a disturbance in communication with the alternator control module (ACM). Although the fault is named a starter/generator control module, it concerns the communication between the ECM and the ACM.
Mulige årsaker
- Increased contact resistance or oxidation in the terminals
- Short-circuit between the LIN cables
- Open circuit in one of the LIN cables
- Damaged alternator control module (ACM), which is the charge regulator
- An alternator with a charge regulator not intended for LIN communication has been fitted
- Internal fault in another control module on the same part of the LIN network
Hva du kan gjøre
- 1Look for loose, corroded or oxidized connectors at the alternator control module (ACM).
- 2With a multimeter you can check that the signal wire between the modules is not broken and has no contact with ground or voltage.
- 3Check that the alternator is of the correct type, as an alternator not intended for LIN communication causes this code.
- 4Have a workshop read the fault codes with diagnostic equipment and run the CEM quick test for the alternator, as this needs tools.
Symptomer du kan merke5
- Dead battery
- Low battery or weak electrical power
- The engine is hard to start and cranks slowly
- Warning symbol and message in the display
- The charge warning lamp lights up or behaves abnormally
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