Normal Operation
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
When any keypad button is pressed the smart junction box (SJB) sends power to the RKE keypad lamps on circuit CPK28 (WH) to assist the driver in entering an access code at night. The RKE keypad is grounded on circuit GD126 (BK/WH).