FixVault

Possible Causes

Possible Causes 
(T72) SENSOR SUPPLY VOLTAGE CIRCUIT OPEN
(T71) INPUT SPEED SENSOR 2 (N3) SIGNAL CIRCUIT OPEN
(T71) SPEED SENSOR 2 (N3) SIGNAL CIRCUIT SHORTED TO ANOTHER CIRCUIT
(T13) SENSOR GROUND CIRCUIT OPEN
(T13) SENSOR GROUND CIRCUIT SHORTED TO ANOTHER CIRCUIT
(T71) SPEED SENSOR 2 (N3) SIGNAL CIRCUIT SHORTED TO GROUND
(T13) SENSOR GROUND CIRCUIT SHORTED TO GROUND
INPUT SPEED SENSOR 2 (N3)
TRANSMISSION CONTROL MODULE (TCM)

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  .