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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 480 (Exterior Lighting System) >> Diagnosis And Testing >> 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 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 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 circuit 160 (DB/WH) (LH low beam) and circuit 161 (DG/OG) (RH low beam). The headlamps are individually grounded through circuit 57 (BK).