Hi,
This started with a 3-4 shift solenoid code that got worse and then multiple codes showed for the transmission. Then one day it just quit shifting all together. There was absolutely no response when moving the shifter into any position. So based on the original codes I decided to replace the whole valve body to cover all of the solenoids. I bought a used valve body that matched the transmission code and it was installed today.
Unfortunately it is still completely unresponsive no matter what position the shifter is in. However, there are no codes so I'm not sure what to look at next. I am wondering if it needs to be reprogrammed/recoded or something like that.

Any advice or suggestions would be appreciated.
Thanks!