Backup Lamp: Testing and Inspection

Symptom: *BACKUP LAMPS INOPERATIVE

POSSIBLE CAUSES
- OPEN BACKUP LAMP BULB(S)
- BACKUP LAMP GROUND CIRCUIT OPEN
- BACKUP LAMP SUPPLY CIRCUIT OPEN
- FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
- TRANSMISSION RANGE SENSOR
- INTERMITTENT BACKUP LAMPS