Normal Operation - Five Hundred and Freestyle
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
When the smart junction box (SJB) detects a request for the RH or LH turn signals, the SJB provides voltage through circuit 1342 (GY/BK) or circuit 1341 (DB/OG) to the LH and RH front turn lamps, respectively. The rear stoplamps and circuitry are used for the rear turn lamps.