Backup Lamps Come on While Shifter Is Not In Reverse Position

*BACKUP LAMPS COME ON WHILE SHIFTER IS NOT IN REVERSE POSITION

Test Note:* BACKUP LAMPS COME ON WHILE SHIFTER IS NOT IN REVERSE POSITION.

POSSIBLE CAUSES:
INTERMITTENT WIRING AND CONNECTORS
BACKUP SUPPLY CIRCUIT SHORT TO VOLTAGE
TRANSMISSION RANGE SENSOR