I made a post about this vehicle (17 Honda Civic w/ prox) just the other day regarding me using the wrong tracer on my cutting machine, but I had another issue that I thought another locksmith could shed some light on.
I thought Honda key codes were always the last 4 in the series of characters. On this vehicle, the code was the first four. I realized this when I went back the following day to finish the key that I couldn’t cut due to using the wrong tracer on my mini. I burned a few emergency blanks before I realized it. The last four characters made a valid code for the vehicle. The code was only in one spot on the entire vehicle. Anyone else ever see this?