Valve body diagrams

I replaced the AC evaporator by myself. After it, the car can't be started. Every gear position on the gear shift indicator is boxed(P R N D 3 L). I checked around and found the gear shift cable bushings is broken, because I forgot to disconnect it when I pulled hard to remove the ac housing. I changed the cable with a used one. The problem is still there, but the starter engaged in neutral, the engine won't turn over. I searched online and knew that the transmission range sensor might go bad. I removed the transmission valve body and replaced TRS. Then I decided to open the valve body to clean it. Unfortunately, I lost a few check balls and one small metal retainer fell off. I don't know where the balls and retainer should go back. My questions are: Am I going in the right direction to fix the problem? Can the expert give me a valve body diagram so I can put back everything? Thanks a lot.