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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 818 (Exterior Lighting System (F250-F550)) >> Diagnostic Tests >> Headlamps >> Pinpoint Tests >> Pinpoint Test D: One Low Beam Headlamp Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

When the headlamp switch is placed in the HEADLAMPS ON position, the central junction box (CJB) routes the voltage to the low beam headlamps through circuits 160 (DB/WH) (LH low beam) and 161 (DG/OG) (RH low beam). The headlamps are individually grounded through circuit 57 (BK).

Possible Causes

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