LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Fiat >> 2017 >> 124 Spider Classica, Automatic Trans >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> (Aw6R31 Automatic Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P07BF-Input/Turbine Shaft Speed Sensor 1 Circuit Low >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

Possible Causes
INPUT/TURBINE SPEED SENSOR SUPPLY (+) CIRCUIT OPEN
INPUT/TURBINE SPEED SENSOR SUPPLY (+) CIRCUIT SHORTED TO GROUND
INPUT/TURBINE SPEED SENSOR SIGNAL (-) CIRCUIT OPEN
INPUT/TURBINE SPEED SENSOR SIGNAL (-) CIRCUIT SHORTED TO GROUND
INPUT/TURBINE SPEED SENSOR
TRANSMISSION CONTROL MODULE (TCM)

Always perform the DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE   .