Co oznacza kod błędu TCM-U003900?

Diagnostyka i definicja kodu błędu dla TCM-U003900 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Zamów naprawę w OBD Tuning.

VOLVO

TCM-U003900 - Lost Communication With Engine Control Module (ECM) on communication bus "B". General Failure Information. No sub type information

Układ

Sterownik automatycznej skrzyni biegów (TCM)

Modele Volvo, których dotyczy ten kod błędu

Dotyczy następujących modeli:

9 modeli

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Pokaż modele wg rocznika i silnika (9)

Co oznacza ten kod błędu?

The transmission control module (TCM) is receiving no communication from the engine control module (ECM) on bus B. The fault most likely lies in the wiring between the two control modules, but it can also be in the engine control module. The code gives no specific fault type, only that communication has been interrupted.

Możliwe przyczyny

Brief open circuit or short on the CAN wire linking the engine module (ECM) to the gearbox module (TCM)
Fault in the engine control module (ECM)
Incorrect signal configuration, for example if a control module has been replaced without new software being loaded

Co możesz zrobić

1Read codes from the engine control module (ECM) and the central electronic module (CEM) and deal with them first
2Clear the code and see whether it comes back; if it does not, the fault was most likely temporary
3Check the connectors and wiring of the CAN network between engine and gearbox for looseness, corrosion and damage
4Have a workshop load new software into the control module if the code is only present in the gearbox

Objawy, które możesz zauważyć1

No noticeable symptoms for the driver

Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.