Explorer 4WD V6-4.0L VIN E (1999)
Trailer Lamps: Flow of Diagnosis
1. Verify the customer concern by operating die trailer tow lights.
2. Verify the exterior lighting system of the vehicle is operating properly.
3. Visually inspect for obvious signs of electrical damage.
VISUAL INSPECTION CHART
Electrical
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Central Junction Box (CJB) Fuse 3 (7.5 A)
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CJB Fuse 7 (7.5 A)
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CJB Fuse 30 (15 A)
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Loose or corroded connections
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Damaged circuitry
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Damaged relays
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Failed bulb(s)
4. If the fault is not visually evident, determine the symptom and proceed to Symptom Chart. See: Symptom Related Diagnostic Procedures
