Rep Power: 0

My check engine light came on, D light started flashing, shifting hard... I checked the code with my aftermarket scanner P0717 came up. I replaced the Input Shaft speed sensor AND the connector, reset the code and it still came back... I read a lot of trouble shooting that is a little beyond my mechanical knowledge so I'm hoping someone here can suggest which part I should try to replace next. I have a multimeter to test the wiring but I can't seem to find what is wrong here or what it should be at... Thanks in advance.

 
Rep Power: 222

Have you checked the fluid? Tried changing the fluid?
what brand was the sensor?