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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 386 (Exterior Lighting System) >> Diagnosis And Testing >> Headlamps >> Pinpoint Tests >> Pinpoint Test E: One High Beam Headlamp Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

When the smart junction box (SJB) detects the multifunction switch in the headlamps ON and in the HIGH BEAM position, the SJB sends voltage through circuits 1779 (DB/LG) (RH headlamp) and 1724 (WH/LG) (LH headlamp) to the high beam headlamps. Circuit 57 (BK) is the ground circuit for the headlamps.

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