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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1103 (Exterior Lighting System) >> Diagnostic Tests >> Headlamps >> Pinpoint Tests >> Pinpoint Test E: The Headlamps Are On Continuously >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. 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, voltage is routed to the multifunction switch through circuit 15 (RD/YE).

If the multifunction switch is in the LOW BEAM position, voltage is routed to the daytime running lamps (DRL) module and the central junction box (CJB) through circuit 13 (RD/BK). The CJB then routes the voltage through circuits 160 (DB/WH) (LH headlamp) and 161 (DG/OG) (RH headlamp).

If the multifunction switch is in the HIGH BEAM position, voltage is routed to the CJB through circuit 632 (GY/OG). The CJB then routes the voltage to the daytime running lamps (DRL) module and the headlamps through circuit 12 (LG/BK).

This pinpoint test is intended to diagnose the following:

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