Was bedeutet der Fehlercode TCM-P171986?

Diagnose und Fehlercodedefinition für TCM-P171986 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Steuergerätereparatur bei OBD Tuning.

VOLVO

TCM-P171986 - Engine Torque Signal. Bus Signal / Message Failures. Signal invalid

System

Getriebesteuergerät (TCM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

9 Modelle

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

Modelle nach Baujahr und Motor anzeigen (9)

Was bedeutet der Fehlercode?

The fault code concerns the engine torque signal on HS-CAN 1, which the transmission control module uses for shift points and system pressure. The signal is missing or indicated as faulty. The fault is general and does not say more precisely what type of fault it is. The cause may lie in the engine control module or in the CEM.

Mögliche Ursachen

Sporadic open or shorted CAN wire between the engine control module and the transmission control module
Fault in the engine control module (ECM)
Fault in the central electronic module (CEM)

Was Sie tun können

1Read the fault codes in the engine control module and the CEM, and fix those first
2This code can be cleared only after the root fault has been fixed and its fault code cleared
3Have a workshop check the CAN network between the engine control module and the transmission control module for open circuits and short-circuits

Symptome, die Sie bemerken können5

Warning symbol and text message in the display, and the check engine light lit or behaving abnormally
Engine stalls when a gear is engaged
Engine stalls when slowing down
Lockup does not work
Gear changes harsh or jerky on both upshifts and downshifts

Was der Fehler beeinflussen kann3

If the torque signal on HS-CAN 2 is also faulty, the control module uses a basic value for the signal
Adaptation is blocked
Slip lock-up and automatic engine start/stop are switched off

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.