Faulty Left Front Sensor
Left Front Sensor harness is open or shorted
Left Front Sensor circuit poor electrical connection
Faulty Parking and Back-Up Sensor Control Unit
Engine Light ON (or Service Engine Soon Warning Light)
The Parking and Back-Up Sensor Control Unit monitors the Left Front Sensor. The Parking and Back-Up Sensor Control Unit sets the Diagnostic Trouble Code (DTC) when there is a Left Front Sensor failure.