VOLVO
ECM-U04028F - Invalid Data Received from TCM. Bus Signal / Message Failures. Erratic
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
6 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–)
Vis modeller per årsmodell og motor (11)
- Volvo S60 (2011–)2011Kun motor: B4164T, B4164T3
- Volvo S60 (2011–)2012–2015Kun motor: B4164T, B4164T2, B4164T3
- Volvo S80 (2007–)2011, 2015Kun motor: B4164T
- Volvo S80 (2007–)2012–2014Kun motor: B4164T, B4164T2
- 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
- Volvo V60 (2011–)2012–2015Kun motor: B4164T, B4164T2, B4164T3
- Volvo V70 (2008–)2011Kun motor: B4164T
- Volvo V70 (2008–)2012–2015Kun motor: B4164T, B4164T2
Hva betyr feilkoden?
The TCM keeps asking the engine control module for a set amount of torque. That torque can be adjusted through the air, which is slow, or through ignition timing, which is fast. The code is set when the torque signal from the TCM arrives with poor quality. Although the code is titled erratic, it concerns the quality of that torque signal.
Mulige årsaker
- Fault in the transmission control module (TCM), which should be checked first
- Disturbances or breaks on the CAN network
Hva du kan gjøre
- 1Fix the codes in the transmission control module first. Troubleshooting is done there
- 2Check the CAN connectors between the engine control module and the transmission module for contact resistance and oxidation
- 3Look for disturbances on the CAN network, such as chafed wires or pinched areas. Use a multimeter to check that the wires have no break
- 4Clear the code only after the root fault is fixed, then road test the car to see whether it returns
- 5If the code comes back: have a workshop with diagnostic equipment check the transmission control module
Symptomer du kan merke1
- No noticeable symptoms for the driver
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