After another 4 hours of experimenting and diagnosis Ive narrowed it down to one bad BMS module board.
It looks grungy because ive been trying to clean off the conformal coating.
It has two AD7280 BMS chips
and a 32 bit NEC micro controller
The van has a total of 16 of these boards, only one is bad and giving the voltage sense code.
Does anyone know anyone who might have some of these boards?

It looks grungy because ive been trying to clean off the conformal coating.
It has two AD7280 BMS chips
and a 32 bit NEC micro controller
The van has a total of 16 of these boards, only one is bad and giving the voltage sense code.
Does anyone know anyone who might have some of these boards?