TPS

I had a Chevy truck the other day and the throttle body had two position sensors built into it but the signals were sent by serial data to pcm. In older vehicles i could look for glitches in the tps with a lab scope by back probing the signal wires but now there is only one wire which is serial data. I tried to look for glitches with live data on a launch x431 scan tool koeo but the throttle plate only goes from 19% to 30% with actuation test you can go 0% to 100% but with no graph i wanted to try another scan tool but another tech was using the shops snap on scanner. I am curious to other technician diagnostic test when you cant catch it on a scan tool and the lab scope is not an option. I posted some captures of the serial data one at 10% and the other 100%