How do I reset the ambient temperature sensor?

Can anyone help me reset the ambient air temperature sensor? I tried pressing the recirculate and AC buttons for 2 seconds, then just the AC button for 3 seconds, and then the recirculate and max AC buttons for 16 seconds. I also tried clearing the error codes in Forscan, but they come back right away. I replaced the sensor and the harness under the grill, but it still didn’t work. The system thinks it’s 50 degrees outside, and the AC is blowing hot air.

Ford wants $200 to reset it, but why can’t I do it myself? Any help would be great. It’s for a 2017 F150 2.7L 2WD.