F 150 4WD V8-4.6L VIN 8 (2010)
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Ignition ON.
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Do the parking lamps illuminate?
Yes
REMOVE the jumper wire. GO to P5.
No
REMOVE the jumper wire. REPAIR circuit CLS30 (VT/WH) for an open. TEST the system for normal operation.
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P3 CHECK FOR VOLTAGE TO THE INOPERATIVE PARKING LAMP
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Place the headlamp switch in the OFF position.
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Disconnect: Inoperative Lamp(s).
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Place the headlamp switch in the PARKING LAMPS ON position.
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Measure the voltage between the inoperative lamp, harness side and ground as follows:
