With Manual Transmission
1. Verify the customer concern by operating the backup lamps.2. Visually inspect for obvious signs of mechanical and electrical damage:
VISUAL INSPECTION CHART
MECHANICAL
^ Damaged backup lamp switch
ELECTRICAL
^ Blown fuse(s)
^ Damaged wiring harness
^ Loose or corroded connections
^ Damaged backup lamp
^ Transmission Range Sensor (TR) or backup lamp switch.
3. If the concern is not visually evident, determine the symptom and proceed to the Symptom Chart. Symptom Related Diagnostic Procedures