Ranger 4WD V6-3.0L VIN V Flex Fuel (1999)
Trailer Lamps: Initial Inspection and Diagnostic Overview
1. Verify the customer concern by operating the trailer tow lamps.
2. Verify the exterior lighting system of the vehicle is operating properly. If not, refer to the appropriate Pinpoint Test. See: Pinpoint Tests
3. Visually inspect for obvious signs of electrical damage.
VISUAL INSPECTION CHART
Electrical
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Blown fuse(s)
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Loose or corroded connections
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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
