Escape 4WD V6-3.0L (2008)
Trailer Lamps: Initial Inspection and Diagnostic Overview
Principles of Operation
PRINCIPLES OF OPERATION
The trailer lamps are supplied power by the trailer tow park lamp relay, the LH trailer tow stop/turn relay and the RH trailer tow stop/turn relay and are
energized to correspond with the exterior lighting functions of the vehicle. A common ground is provided to the trailer tow connector for the trailer
lamps.
Inspection and Verification
INSPECTION AND VERIFICATION
1. Verify the customer concern.
2. Verify the exterior lighting system of the vehicle is operating correctly. If not, refer to the appropriate pinpoint test.
3. Visually inspect for obvious signs of electrical damage.
VISUAL INSPECTION CHART
Electrical
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Battery junction box (BJB) fuse(s):
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8 (20A) (trailer tow parking lamps)
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14 (15A) (trailer tow stop/turn relays)
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Trailer tow stop/turn relays
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Trailer tow parking lamp relay
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Trailer
4. If the concern is not visually evident, verify the symptom. GO to Symptom Chart. See: Symptom Related Diagnostic Procedures
