The code reader from the parts store didn't have an option to clear it. It didn't even have an option to read the codes on the device.It may give quicker results to clear it and see if it comes back?
The guy at the parts store just handed it to me and said "You know how to use it?" I thought maybe part of that was being 0ºF outside, and the other part was that white privilege kicking in that he trusted me. Walking to the car I noticed the back of the reader said "NOT FOR RETAIL SALE." I plugged it in and it blinked a bit and said "done" but there was no way to read the code from the display. I thought I did it wrong so I plugged it in again just to get the same result. I went back inside and told the guy and he said it had to be plugged into their computer to read the code.
I stood there thinking that's weird. Then, about 5 seconds later I said: "OH. That keeps people from stealing it..." and the guy said "Yes."