You can get documents with everything regarding electrics like circuit diagrams, module locations, cable routings, ground connections etc. here: https://volvodiag.com/ewd-online-eng/
In this forum thread https://forum.d5t5.com/topic/249/vida-2014d-2015a-windows-11/24 , you can get a Win 10/11 compatible version of VIDA to look up the descriptions and fault tracings for all those error codes.