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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 928 (Exterior Lighting System) >> Diagnostic Tests >> 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 2007 Mercury Mariner and 2007 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 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.

Possible Causes

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