F 350 2WD Super Duty V10-6.8L VIN S (1999)
Trailer Lamps: Initial Inspection and Diagnostic Overview
1. Verify the customer concern by operating the trailer towing package.
2. Visually inspect for the obvious signs of electrical damage.
VISUAL INSPECTION CHART
Electrical
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Fuse(s)
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Corroded/loose connector(s)
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Loose/broken wire(s)
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Failed bulb(s)
3. If the concern is not visually evident, verify the symptom and proceed to Symptom Chart. See: Symptom Related Diagnostic Procedures
