Moanie/NismoGirl. A Q. if I may? Whats a power fc, or shouldn't I ask?
I used to have an FC holden (1959) in a former incarnation, but you wouldn't call that powerful - by today's standards. And I'm sure it's not the answer to my Q.
Hope you are making progress with problems. I have no further insights, beyond how the lights are supposed to work.
Initially, mine did have a problem. None of the ABS,slip, or active LSD lights ever came on. Under warranty, so dealer had problem for 3 weeks. Turned out it was a broken wire inside a plug somewhere. It was like these systems had been turned off with a switch.
Interesting that both ABS and slip/activeLSD systems both ran thru one wire. Seems to support earlier post that both these systems are run from the one computer??