Normal Operation
WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
Battery voltage is supplied to the navigation system module through circuit 30-GK8 (RD/BK). The driver door module (DDM) supplies voltage to the navigation system module through circuit 10-GK8 (GY/BK) in the ON/ACC position. Circuit 31-GK8 (BK/RD) provides the navigation system module ground.