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Multifunction switch
WARNING: This page is about a different car, the 2004 Ford RV Cutaway, 2004 Ford Econoline, 2004 Ford E450 Super Duty, and 2004 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Testing Multifunction Switch Schematic Diagram (1 Of 2)
Courtesy of FORD MOTOR CO.
Fig 2: Testing Multifunction Switch Schematic Diagram (2 Of 2)