Ford Workshop Service and Repair Manuals > Expedition 4WD V8-5.4L SOHC VIN 5 (2005) > Accessories and Optional Equipment | Towing / Trailer System | Trailer Lamps | Component Information | Testing and Inspection | Initial Inspection and Diagnostic Overview

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AA8

Tests AB: Trailer Lamps Are Inoperative - Trailer Reversing Lamps

PINPOINT TEST AB: THE TRAILER LAMPS ARE INOPERATIVE - TRAILER REVERSING LAMPS

AB1-AB2

Tests AC: The Trailer Lamps Are ON Continuously

PINPOINT TEST AC: THE TRAILER LAMPS ARE ON CONTINUOUSLY

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