04 Scrammy 4×4 not working

Ok, I have a wired one. I am troubleshooting wires right now but here is what it does, no 4×4 but I do get full power to the right wheel only in reverse and with the over ride engaged. No AWD light illuminating on the switch. I’m reading about 5v on the black wire at the AWD switch. Shouldn’t that be 12v? Anyway, I’m heading back into that garage but I’d love to hear some ideas!