Sorry for the delayed response, so many other things creep in with minor stuff getting pushed back.
cornblatt, that's interesting info on the micro switches; the previous soft close motor burnt out due to broken tailgate wiring, never really had the chance to see exactly what their functions were as installed replacement, tested working went onto something else.
I wondered if forward interior lights be part of the same circuit sharing the same fuse, when removing the red 'C' fuse you can hear a loud relay clicking on and off which happened today reinstalling the fuse. Bit of good news though as the tailgate motor started to wirr into action then stopped, sounds as though it could be a microswitch or possibly circuit board as you describe, will investigate further.
The pdf I have is for a 92 TE so could be a bit different, if you have something closer to mine that would be appreciated – thanks.
jay bob - these are the readings when first connecting the multie meter in series, .27 dropping to .16 is this okay or is there a draw somewhere?