Hva betyr feilkode TCM-P179997?

Diagnose og feilkodedefinisjon for TCM-P179997 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Bestill reparasjon hos OBD Tuning.

VOLVO

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

System

Girkassestyring (TCM)

Volvo-modeller feilkoden gjelder for

Gjelder følgende modeller:

9 modeller

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

Vis modeller per årsmodell og motor (9)

Hva betyr feilkoden?

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.

Mulige årsaker

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

Hva du kan gjøre

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

Symptomer du kan merke5

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

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