Circuit CDC10 (BU/OG) (GEN COM)
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.
This is the GEN COM circuit. The PCM determines the optimal voltage set point for the charging system and communicates this information to the voltage regulator through the GEN COM circuit.