Quote Originally Posted by Bigrig View Post
so long as its not the TCU itself!!!! lol
If you have a manual lock-up switch in it (as I thought you said here) this rules out the TCU as being the problem.
Quote Originally Posted by Bigrig View Post
As I'm sure it was 'measured' with the lockup switch selected

I wrecked that part of my TCU by feeding 12V into it instead of to the TC solenoid, but the manual switch still makes my TC lock no worries.