WARNING: This page is about a different car, the 2002 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Pinpoint Test A: Shift Solenoid (1 Of 2)
Courtesy of FORD MOTOR CO.
Fig 2: Identifying Pinpoint Test A: Shift Solenoid (2 Of 2)