VOLVO
ECM-U011181 - Lost Communication With Battery Energy Control Module "A". Bus Signal / Message Failures. Invalid serial data received
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
7 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Vis modeller per årsmodell og motor (20)
- Volvo S60 (2011–)2011Kun motor: B4164T, B4164T3, B4204T6, B4204T7
- Volvo S60 (2011–)2012–2014Kun motor: B4164T, B4164T2, B4164T3, B4204T7
- Volvo S60 (2011–)2015Kun motor: B4164T, B4164T2, B4164T3
- Volvo S80 (2007–)2010Kun motor: B4204T6
- Volvo S80 (2007–)2011Kun motor: B4164T, B4204T6, B4204T7
- Volvo S80 (2007–)2012–2014Kun motor: B4164T, B4164T2, B4204T6, B4204T7
- Volvo S80 (2007–)2015Kun motor: B4164T
- Volvo V40 (2013–)2013Kun motor: B4164T, B4164T3
- Volvo V40 (2013–)2014–2015Kun motor: B4164T, B4164T3, B4164T4
- Volvo V40 Cross Country (2013–)2013–2015Kun motor: B4164T
- Volvo V60 (2011–)2011Kun motor: B4164T, B4164T3, B4204T6, B4204T7
- Volvo V60 (2011–)2012–2014Kun motor: B4164T, B4164T2, B4164T3, B4204T7
- Volvo V60 (2011–)2015Kun motor: B4164T, B4164T2, B4164T3
- Volvo V70 (2008–)2010Kun motor: B4204T6
- Volvo V70 (2008–)2011Kun motor: B4164T, B4204T6, B4204T7
- Volvo V70 (2008–)2012–2014Kun motor: B4164T, B4164T2, B4204T7
- Volvo V70 (2008–)2015Kun motor: B4164T, B4164T2
- Volvo XC60 (2009–)2010Kun motor: B4204T6
- Volvo XC60 (2009–)2011–2012Kun motor: B4204T6, B4204T7
- Volvo XC60 (2009–)2013–2015Kun motor: B4204T7
Hva betyr feilkoden?
The engine control module (ECM) constantly receives data over the CAN network from the central electronics control module (CEM). The code is set when the engine control module detects faulty CAN communication. Although the code is titled lost communication with the battery energy control module “A”, it applies to the CAN communication between the engine control module and the central electronics control module.
Mulige årsaker
- Fault in the central electronics control module (CEM)
- Intermittent breaks in one or both CAN wires
- Intermittent short circuits between the CAN wires, or between a CAN wire and ground or supply voltage
- The sending control module has stopped sending the signal the engine control module expects
- Incorrect signal configuration in a control module that was replaced without new software being loaded
Hva du kan gjøre
- 1Read the codes in the engine control module and first fix any other CAN-related codes, as they may share the same cause
- 2Clear the code and road test the car to see if it is set again
- 3Check the CAN wiring between the engine control module and the central electronics control module for chafing, pinched areas and loose connectors
- 4Use a multimeter to check that the CAN wires have no break and are not shorted to ground or supply voltage
- 5Check that the battery has good voltage and that the fuses are intact
- 6If the fault returns: have a workshop with diagnostic equipment check the central electronics control module. Do not work on the battery system yourself
Symptomer du kan merke1
- No noticeable symptoms for the driver
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.