This is an educational video showing the reprogramming of the TCM of a 2015 Nissan Sentra that has the P17F3 hard code. The vehicle experiences CVT flare-ups when driving at a speed above 70 mph. The reprogramming process is similar to addressing codes P17F0, P17F1, P17F2, and P17F4 transmission codes.
Courtesy of Bissa Auto Tune. https://www.bissaautotune.com/