Initial Inspection and Diagnostic Overview

1. Verify the customer concern.
2. Visually inspect for the following obvious signs of mechanical and electrical damage.

VISUAL INSPECTION CHART

Mechanical
- Stuck or binding light switch rheostat resistor

Electrical
- Blown fuse:
- 15 A TAIL
- Loose or corroded connections
- Damaged wiring harness
- Damaged light switch rheostat resistor
- Damaged TAIL relay
- Damaged or loose lamp(s)

3. If the fault is not visually evident, verify the symptom and proceed to Symptom Chart. Symptom Related Diagnostic Procedures