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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1800 (Exterior Lighting System) >> Diagnosis And Testing >> Headlamps >> Pinpoint Tests >> Pinpoint Test C: One High Beam Headlamp Is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

When low beams are on and the Smart Junction Box (SJB) detects the multifunction switch in the HIGH BEAM position, the SJB energizes an internal relay. When the relay is energized, the relay routes voltage to the headlamps.

For Milan, a shutter is utilized within each headlamp. When the shutter is activated, the headlamp beam pattern changes to illuminate a greater distance.

This pinpoint test is intended to diagnose the following: 

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