Light Control Module in high voltage mode.

Ok, scenario.

Truck was parked for 3 months.

Brought it back into service, batteries were still solid and reconnected all power and ground wires.

Week 2 , the trans battery wire had poor connection. Stopped shifting. Replaced ring terminal, cleaned connection... all good.

Now, since week 2, I've been getting this LCM hi voltage warning. It turns off the ac, DID flashes warnings.
It has been intermittent. Once it came on and engine fan instantly came on. By the time i got a safe pullout,it had gone off. No errors.

however, i need to figure which wires to inspect for abrasion/connection issues. Any guesses?