Gearshift Position Sensor
Gearshift Position Sensor
The gearshift position sensor is located on the valve body. The TCM uses inputs from this sensor to determine the selected gear-range on the automatic side of the J-gate. Signals from the position sensor also ensure that the engine will only start when the gear selector is in the park or neutral position. The ECM uses the signals to prohibit operation of the starter relay if the incorrect gear is selected.