I tested the battery and contactor control module (E-box) 5WA915183B on the table and it works strangely. If I turn the lab supply on then it does something a few seconds consumes about 400mA and then switches itself off and doesn't turn on anymore. When its not powered some time (maybe a day) then it will one time turn on. Maybe I broke it, because some power pins maybe weren't right.
I'll try to rewire the contactors to be controlled by Zombie VCU and Simp BMS to be measuring current and reading the cell data.