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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 721 (Exterior Lighting System) >> Diagnostic Tests >> Stoplamps >> Pinpoint Tests >> Pinpoint Test I: The Stoplamps Are Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The stoplamp switch is supplied battery voltage through circuit 10 (LG/RD). When the brake pedal is applied, the stoplamp switch routes voltage to circuit 511 (LG). Circuit 511 (LG) supplies voltage to the multifunction switch and the high mounted stoplamp. The multifunction switch internally routes the power (when in the NEUTRAL position) to circuits 9 (LG/OG) (LH stoplamp) and 5 (OG/LB) (RH stoplamp). Circuits 9 (LG/OG) and 5 (OG/LB) are routed to the central junction box (CJB) fuses 36 and 42 and then to the LH and RH stoplamps, accordingly.

Possible Causes

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