F 150 2WD Pickup V8-4.6L VIN W (2006)
-
Central junction box (CJB)
Test Q: The Parking, Rear or License Plate Lamps Are On Continuously
PINPOINT TEST Q: THE PARKING, REAR OR LICENSE PLATE LAMPS ARE ON CONTINUOUSLY
Q1-Q3
Normal Operation
The headlamp switch is supplied battery voltage through circuit 195 (TN/WH). When the headlamp switch is turned to the PARKING LAMPS ON
position, the headlamp switch supplies voltage to circuit 14 (BN), which then supplies voltage to the exterior lamps.
Possible Causes
-
Circuit 14 (BN) short to voltage
-
Headlamp switch
-
Vehicle security module
