MW your way ahead of me; I have to pull the LN unit and look for part#'s.
Your knowlege is very helpful as I always learn from your posts.
The fail term on the reg is putting out 0v.
The charge out is 15.4v Bat sense is 13v ok.
The "alt fail" (6v 86a) relay is not pulling in so alt lite is on.
I am hoping to replace the reg with the same part # because the alt (LN 200a) is otherwise ok.
Looks like a DUVAC; using a diode iso.
2002 Monaco Sig.
There is no BIRD BS, so this system is simple and works well.
Don't want to rewire the charge system.
Thanks for your expert advice.
greg.
