T2. 2020 Ram Rebel. Looking for documentation

[JohnWayneDoe]

I'm looking to learn about the tune values and trying to decode the PID abbreviations. Can anyone get me pointed in a direction? I've been googling for a few weeks now and can find bits here and there but something authoritative and comprehensive would be amazing. Or even just some basic rules of thumb and guidance.
Thanks in advance if anyone's got anything!