Error 10 left wheel after clean with water

I’ve had roomba going over my dog poo 🤦‍♂️ I’ve cleaned the roomba with water and I suspect some water went into the body and got to the main board. After cleaning it my roomba 960 now complain about error 10 left wheel. I have replaced the wheel module but the error remain, which makes me thing it is not the wheel module that has the problem.

Any idea how to diagnose this issue?

If I’ll disassemble it do you think I’ll be able to see or fix the problem?