F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
Trailer Lamps: Pinpoint Tests
Pinpoint Test Notes
NOTE: Refer to Vehicle/Diagrams for connector numbers stated in the pinpoint test.
Test X
PINPOINT TEST X: THE TRAILER LAMPS ARE INOPERATIVE
Test X1-X2
Test Y
PINPOINT TEST Y: THE INDIVIDUAL TRAILER LAMP IS INOPERATIVE - RH TRAILER TURN SIGNAL/STOPLAMP/HAZARD
FLASHER LAMP
Test Y1-Y2