Normal Operation - Freestyle and Five Hundred
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
Voltage is supplied to the stoplamp switch through circuit 1140 (VT). When the brake pedal is applied, the stoplamp switch routes voltage to the smart junction box (SJB) through circuit 810 (RD/LG). The SJB then sends voltage to the stoplamps.