Original 1999 Ford/Mercury Dealer Electrical Wiring Diagram Service Manual. This manual was used by the Factory Dealership to diagnose and identify electrical problems on the Taurus & Sable Models. It contains a wealth of information and will prove invaluable in service procedures on this model. Good condition with normal wear, blemishing and soiling from use in a Dealership [see photos]. The back cover is missing. 12123-99