HELP 4x4 wants to fight

Out of curiosity today I rechecked all my voltages and resistance through the 4x4 system, 3 wires read at 11.8-12v and the other 3 I believe were at 0v, nothing had more resistance than .7ohms, out of curiosity and against my better judgment I manually shifted everything to 4x4 and it drives as it should for being in 4hi but now the lights flash lol. I think it must be my ECU, or 4x4 control module or whatever the hell sends Zeus juice around. Regardless toyota is gonna see the truck to confirm it or not

 

If you like, I can pop the 4wd ecu out of my truck and send it your way to test. It’s not currently being utilized since I did the fj case swap. If it fixes it, sweet, keep it. If not, just mail it back.