2020+ LP5 Duramax DVT controls work?

[Age08]

Has anyone validated that the DVT controls for 87A/B work on 2020+ LP5 duramax's?
The command in particular I am looking at is the DEF Tamper test so it can validate replacement tank heater.

[Tbone]

Good luck, getting any information back from the staff at EFI Live about any question that has the
Letters L5P in it.