Mountaineer 2WD V8-4.6L SOHC VIN W (2003)
Test R2-R4
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 in turn supplies power to the exterior lamps. Ground is provided to the bulbs through
circuit 1205 (BK).
Possible Causes
-
circuit 14 (BN) short to power
-
headlamp switch
-
vehicle security module