Where is the shift solenoid b located?

Hello,

This shift solenoid is located inside the transmission pan attached to the valve body. Here is a guide to show you how to access it and a diagrams below to help you see the location which will have a purple and orange wiring going to it.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.