Ford Workshop Service and Repair Manuals > F 150 Super Crew 2WD V8-5.4L Prop SOHC VIN Z (2003) > Accessories and Optional Equipment | Towing / Trailer System | Trailer Lamps | Component Information | Testing and Inspection | Initial Inspection and Diagnostic Overview

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Test Y1-Y2

Test Y3

Test Z

PINPOINT TEST Z: THE INDIVIDUAL TRAILER LAMP IS INOPERATIVE - LH TRAILER TURN SIGNAL/STOPLAMP/HAZARD
FLASHER LAMP

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