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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 639 (Exterior Lighting) >> Diagnosis And Testing >> Headlamps >> Pinpoint Tests >> Pinpoint Test C: One Low Beam Headlamp Is Inoperative >> Normal Operation - Halogen Headlamps

Normal Operation - Halogen Headlamps

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

When the smart junction box (SJB) detects the headlamp switch in the HEADLAMPS ON position and the multifunction switch in the LOW BEAM position, the SJB sends voltage through circuit CLF04 (BN/BU) and circuit CLF05 (BU/GN) to the LH and RH low beam headlamps, respectively. Ground is supplied on circuit GD121 (BK/YE) and circuit GD123 (BK/GY) for the LH and RH headlamps, respectively.

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