Car wont start
 

Hello folks,

dont really know the best title to give this caption, but am seriously in need of help.

I would try to be detailed as much as I can

To start with, I just got the 2006 FEH from an auto insurance auction ( flood damaged)

There was no key, I got a replacement key, changed the fuse box, that brought power to the dashboard, and the key was programmed.

I had the HV battery changed.

Now, the wrench icon is on, the red triangle light is on, check engine light is on, oil light doesn't go off either, and the HV guage has refused to move. The car does not start.

keeps reading service brake system, liftgate door ajar, stop safely now.

Pls. what can be done?