Faulty Seat Position Sensor
Seat Position Sensor harness is open or shorted
Seat Position Sensor circuit poor electrical connection
Faulty Memory Seat Module
Engine Light ON (or Service Engine Soon Warning Light)
The seat adjuster motors are equipped with position sensors. The Seat Position Sensor are supplied with a common 5 volt reference circuit and low reference circuit from the Memory Seat Module. The memory seat module receives a signal voltage from each Seat Position Sensor whenever a Memory Seat Module output function is active.