2703 is the shutdown code for MCSS on my svt. It means DBSS drive fault. The drive is a Regen part no. OVFR...something. (Not currently at the job so don’t have that info). There is a bit of a learning curve here with this stuff. I’m pretty sure it’s a drive issue. It doesn’t appear that I’m getting voltage for Z to pick which is the pilot for the BP contactor