Co oznacza kod błędu TCM-P179997?

Diagnostyka i definicja kodu błędu dla TCM-P179997 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Zamów naprawę w OBD Tuning.

VOLVO

TCM-P179997 - CAN TCM/ABS Circuit Malfunction. Component Failures. Component or system operation obstructed or blocked

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?

Although the fault code is named component failure and blocked, it applies when the speed value from the brake controller (BCM) is absent or unreliable. The brake control module receives the speed from four wheel sensors and sends it over the CAN network to the transmission control module, which uses it to calculate shift timing. The fault is general and does not say more precisely what type of fault it is.

Możliwe przyczyny

Fault in the brake control module (BCM), which should be diagnosed first
Sporadic open or shorted CAN wire between the brake control module and the TCM
Damaged wheel sensor
Internal fault inside the control module (TCM) of the gearbox

Co możesz zrobić

1Read the fault codes in the CEM and the brake control module (BCM) and fix those first
2Clear this code only after the root fault has been fixed and its fault code cleared
3The brake system is safety critical, so do not work on it yourself. Have a workshop check the wheel sensors and the CAN lead

Objawy, które możesz zauważyć5

Warning symbol and text message in the display
Gear changes too early, too late or too often
Gear changes take too long, or are harsh and jerky
No forward or reverse movement with a gear engaged
Engine stalls when a gear is engaged, and lockup does not work

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