2016 579 low voltage disconnect

I have a 2014 579 just put new batteries a week ago and it saying my lvd is unpowered I been trying to fix it and see what it is does anyone know my truck won't turn on I tried to jump it and still nothing my alternator is good also please help

 

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Make sure the batteries are hooked up properly and tight. I had a similar issue and it was the nuts on the battery cables would just need a little bit more tightening. Can't explain it just a little snug would do it

 

Thank you I put them as tight as I can go and still nothing

 

I don't know what to look for. Maybe a blown inline fuse