F 550 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
Brake Lamp: Initial Inspection and Diagnostic Overview
1. Verify the customer concern by operating the stoplamps.
2. Visually inspect for obvious signs of mechanical and electrical damage.
Visual Inspection Chart
3. If the concern is not visually evident, verify the symptom and proceed to the Symptom Chart. See: Symptom Related Diagnostic Procedures
