I am going to do my best to help you out here with this one, I am reading the repair instructions directly from Alldata Repair ( All garages including Ford uses this program).
Basically they want you to test for resistances and continuity in your shift solenoids. You have 3 solenoids they want you to test...
SSA - 20-30 (resistance in ohms)
SSB - 20-30 (resistance in ohms)
TCC - 10-16 (resistance in ohms)
Connect + to + and - to - from DMM to the solenoids to measure ohms for resistance
Connect + from DMM to both positive and negative on the solenoids and - from DMM to a body ground to measure for continuity. Connection should show infinite resistance (no continuity). If you have continuity or the resistance isnt with in spec, replace solenoid(s).
Good luck. PM me if you need anything else.