2002 Ford Excursion power seats

Power seat control toggle was used to move seat forward. It would not move back or do any other function. Fuse is good(replaced anyway) and with test probe the hot leg of the fuse lights up. Took seat off moorings for better access. Test light lit up when probed into main wire harness coming from floor. Checked with probe the control switch wires and did get power to switch. Tried switch again but it only went further forward. The other up/down buttons worked for awhile then nothing.I took the entire seat out and disconnected the seat from the lower steel assembly. Installed lower frame back into car and connected all wire connectors. Still giot power indication tothe harness from the flloor and in green wire to the global seat module, but still no power at the control. While test light probing at the harnesses that go into the global seat module all of a sudden the motor started and the seat rails went all the way back to furthest from dash and went down to zero raise position.I could not duplicate this but it proved that the motor works. All the wiring harnesses were inspected asnd no broken or masshed wires anywhere.I bought from ford a new global seat module and tried again but no go. Note in package said itr had to be programmed from old unit but isnt this module just for the memory seats? Still get power to module at the green wire but nothing at seat control.I took apart the connector to the control switch and test lighted each male end but no power indicated. As power seats work without key on I am at a loss now.