[Willyod]

Hi, thanks for the detailed reply. I do in fact have the CEL on the first push, EOIO. There is no attempt to engage the starter. I am trying to find a tech nearby with AUTEL, or acquire a good scanner to ck as much as I can. I am trying to get a ISTA D operating to narrow issues, but have too small of a notebook. Am stuck

After thinking about it, even after trickle charge, 4 amps 12 hrs..ends up 12.5 v, low rt? I t should be hovering at least 13v IMO..
I have tried disconnecting the the IBS from the neg terminal- no change. I will try a load test and see if this batt is any good. I may discharge it and trickle it again for different/better end result.