FixVault

Possible Causes

Possible Causes 
(T52) INPUT SPEED SIGNAL CIRCUIT OPEN
(T13) SENSOR GROUND CIRCUIT OPEN
(T52) INPUT SPEED SIGNAL CIRCUIT SHORTED TO GROUND
(T13) SENSOR GROUND CIRCUIT SHORTED TO GROUND
(T52) INPUT SPEED SIGNAL CIRCUIT SHORTED TO VOLTAGE
(T13) SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE
INPUT SPEED SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .