@Engineer-Joe posted:Are you saying between the center rail of the dead, and the outside rail of the live one?
Not the center to center of the 2, right?
So power is getting thru somewhere.
Yes, I am saying between the center rail of the dead and the center rail of the live!
I’m thinking that my meter reading of 18 volts in this scenario means that my TIU fixed 2 output must be shorted out, perhaps by a failed/shorted TVS as other forum members have suggested.