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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 386 (Exterior Lighting System) >> Diagnosis And Testing >> Stoplamps >> Pinpoint Tests >> Pinpoint Test L: The Stoplamps Are On Continuously >> Normal Operation

Normal Operation

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

When the brake pedal is applied, the stoplamp switch allows voltage to flow through circuit 511 (LG). Circuit 511 (LG) provides voltage to the high mounted stoplamp and the smart junction box (SJB). The SJB then provides voltage to the LH and RH rear lamps through circuits 22 (LB/BK) and 810 (RD/LG), respectively.