LEMON Manuals: Even more car manuals for everyone
Home >> Fiat >> 2017 >> 124 Spider Classica, Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> (Aw6R31 Automatic Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P077C-00-Output Shaft Speed Sensor Circuit Low >> Possible Causes

Possible Causes

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

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