Initial Inspection and Diagnostic Overview

1. Verify the customer's concern by operating the backup lamps to duplicate the condition.
2. Inspect to determine if one of the following electrical concerns apply:

VISUAL INSPECTION CHART

Electrical
- Circuitry open/shorted.
- Open fuse junction panel TURN SIG Fuse (10A).
- Miniature bulb burned out.
- Damaged transmission range sensor.

3. If the inspection reveals obvious concern(s) that can be readily identified, service as required.
4. If the concern(s) remains after the inspection, determine the symptom(s) and go to the Symptom Chart. Symptom Related Diagnostic Procedures