[amidgeha]

Input/Turbine Speed Sensor (A) Circuit

The Input Speed Sensor detects the primary pulley revolution speed and sends a signal to the Transmission Control Module (TCM) and Engine Control Module (ECM). The ECM sets the OBDII code when the Input Speed Sensor is out of factory specifications.

Cause:
Faulty Transmission Speed Sensor
Transmission Speed Sensor harness is open or shorted
Transmission Speed Sensor circuit poor electrical connection

Symptoms:
Check engine light
Possible shifting problems