I've reset the transmission to the point where I hear it make a clunk
inside the transmission housing. I don't know if that clears the
software settings, though. To do it, as i recall,

jumper to a1

turn on ignition

read first code by pressing once on switch

repeat til all codes read

hold down button for 5 seconds 9thats when it clunks).

Again, I may have the exact sequence wrong but I definitly got it to do something. I recall i did this when I was reading the tranny error codes
when the PNP switch was failing.

Also, when cold, the first gear shift point is set higher to shorten
warm-up time (so it may be normal if it happens when cold).