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.
With the ignition switch in the START or RUN position, the instrument cluster receives voltage from the smart junction box (SJB) through circuit CBP20 (YE/VT). When the ignition switch is turned to the OFF, or ACC position the voltage drops to 0 volts on circuit CBP20 (YE/VT).