Got my new tech 2 last week

I've been trying to figure out an ABS issue left front. Replaced rotors, pads..... when I run live view my left front shows no speed until 10 mph then it falls in line with the others and stays within range at all speeds until I drop back down to 10 or below then it just drops to 0 again. I've got a new harness on it, could this be a gap issue.
Code C0036.