How close is temp difference between coolant and transmission?
Longer climbs and during summer will be telling.
Lockup can occur in S4 if you hold it there.
Graph on page 9
https://lexusgxor.com/_media/a760f_460_overview.pdf
OBD port change occurred starting with 2020 model year… ZPC would also require Techstream instead of previous paper clip method
I’ve seen some devices pulling coolant temps and presenting those for AT… to confirm one is getting accurate date make sure you see different temps between AT Temp...