With all the new Ford updates as of late, a lot of people are confused as to which PCM type to select in order to read their PCM. Hopefully this will help.
For 2011-2014 V8 Mustangs and F150s, use Copperhead
For 2011-2014 V6 Mustangs and F150s, use ESYS
For 2015 V8 Mustangs and F150s, use TC-1791
For 2011-2014 Ecoboost F150, and 2015 Ecoboost Mustang, use TC-1797*
For 2017+ F150 3.5L Ecoboost, its a TC-277,
For 2017 F150 2.7L Ecoboost, its a TC-1797,
For 2017 F150 V8, its a TC-1791
For 2018 Mustang, F150 with 5.0L or 2.7 its a TC-298