VOLVO
ECM-U04028F - Invalid Data Received from TCM. Bus Signal / Message Failures. Erratic
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
6 modeliS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–)
Pokaż modele wg rocznika i silnika (11)
- Volvo S60 (2011–)2011Tylko silnik: B4164T, B4164T3
- Volvo S60 (2011–)2012–2015Tylko silnik: B4164T, B4164T2, B4164T3
- Volvo S80 (2007–)2011, 2015Tylko silnik: B4164T
- Volvo S80 (2007–)2012–2014Tylko silnik: B4164T, B4164T2
- Volvo V40 (2013–)2013Tylko silnik: B4164T, B4164T3
- Volvo V40 (2013–)2014–2015Tylko silnik: B4164T, B4164T3, B4164T4
- Volvo V40 Cross Country (2013–)2013–2015Tylko silnik: B4164T
- Volvo V60 (2011–)2011Tylko silnik: B4164T, B4164T3
- Volvo V60 (2011–)2012–2015Tylko silnik: B4164T, B4164T2, B4164T3
- Volvo V70 (2008–)2011Tylko silnik: B4164T
- Volvo V70 (2008–)2012–2015Tylko silnik: B4164T, B4164T2
Co oznacza ten kod błędu?
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.
Możliwe przyczyny
- Fault in the transmission control module (TCM), which should be checked first
- Disturbances or breaks on the CAN network
Co możesz zrobić
- 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
Objawy, które możesz zauważyć1
- No noticeable symptoms for the driver
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.