WARNING: This page is about a different car, the 2003 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Diagnostic Routines 216/316 - Shift Concerns: No Manual 1St Gear (1 Of 2)
Courtesy of FORD MOTOR CO.
Fig 2: Diagnostic Routines 216/316 - Shift Concerns: No Manual 1St Gear (2 Of 2)