Normal Operation
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.
When the transmission control module (TCM) detects the transmission in REVERSE, a signal is sent to the smart junction box (SJB) over the communication network. The SJB then provides voltage to the reversing lamps through circuit 1367 (WH/YE).
When the transmission control module (TCM) detects the transmission in REVERSE, a signal is sent to the smart junction box (SJB) over the communication network. The SJB then provides voltage to the reversing lamps through circuit 1367 (WH/YE). Ground for the reversing lamps is provided through circuit 1205 (BK).