F 450 2WD Super Duty V10-6.8L VIN S (1999)
Tail Lamp: Flow of Diagnosis
1. Verify the customer concern by operating the parking lamps.
2. Visually inspect for the obvious signs of mechanical and electrical damage.
VISUAL INSPECTION CHART
Mechanical
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Multi-function switch
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Headlamp switch
Electrical
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Fuse
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Damaged wiring harness
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Loose or corroded connections
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Parking lamp relay
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Parking, rear or license lamp
3. If the concern is not visually evident, verify the symptom and proceed to Symptom Chart. See: Symptom Related Diagnostic Procedures
