2001 Rubicon stuck in high gear.

Hey everyone, new member here and first post. I’m having problems with one of my rubicons. It was doing fine until the battery went bad and I was using the pull cord to start it. I replaced the battery and now it won’t shift out in auto or using the electric manual shift. I did a rest on it and heard the control motor run for only a second and make a clunking sound. I tried it again and only got the clunk sound, motor did not run. I pulled the control motor and the small gear on the inside was locked up. I used a small screw driver to get it free and put the control motor back on and did the reset. The motor ran again just a sec and locked the gear back up. I pulled the control motor out and did the reset while the motor was unbolted, it came on and went right back off. For some reason it’s not going through the run steps like it should. I’m sure it has codes on it but no way to read them since there is a blotch on the screen where the code would appear. Anyone have any ideas for me to try. Thanks