Originally Posted by CL770

I've read through your post and I agree that the conductor plate was the most likely cause of the issue. However, I can't see where you've cleared the original faults from the TCU. The transmission will not work properly until those original faults are cleared from the TCU, especially if it's been in permanent limp mode. If the transmission has been playing up for a while, you should also clear all the shift adaptations as well.