Flow of Diagnosis

1. Verify the customer concern by operating the backup lamps.
2. Visually inspect for obvious signs of mechanical and electrical damage; refer to the following chart:

VISUAL INSPECTION CHART

Mechanical
^ Transaxle range selector mechanism.

Electrical
^ Blown fuse(s)
^ Damaged wiring harness
^ Loose or corroded connection
^ Backup bulb(s)
^ Digital Transmission Range (DTR) sensor
^ Lighting Control Module (LCM)

3. If the inspection reveals obvious concern(s) that can be readily identified, repair as required.
4. If the concern remains after the inspection, Symptom Related Diagnostic Procedures