Pinpoint Test U: LFC 49 DTC C1948 - Front Driver's Seat Track Position Switch Circuit Resistance Out of Range: Notes
WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
Refer to appropriate SYSTEM WIRING DIAGRAMS article, Supplemental Restraint System for schematic and connector information.