Shift Solenoid Failure Mode Chart "Always On"
WARNING: This page is about a different car, the 2003 Ford RV Cutaway, 2003 Ford Econoline, 2003 Ford E550 Super Duty, 2003 Ford E450 Super Duty, and 2003 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Failed on due to PCM or vehicle wiring concerns, electrically or hydraulically stuck off.
NOTE:
Refer to the TRANSMISSION VEHICLE HARNESS CONNECTOR illustration preceding these pinpoint tests.