Ford 2003 f250 4wd. Code P0720. I changed sensor and still has same code. What could cause that?

Question

Multiple powertrain codes. P0720 is the prominent code and I have changed the output sensor and nothing has changed. How should I proceed?
Thank you

Answer 1

P0730 Brake pedal input

P0720 Output speed sensor circuit

P1780 Transmission control switch (overdrive cancell switch)

P1780 also known as the overdrive cancel switch is caused by no input from the brake pedal switch,Replace the brake pedal switch this is a long shot and may not contribute to a solution for the output speed sensor, Depending how the pedal input has failed may be contributing to it insufficient input.