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Just had a completely different idea on getting this to work.
1. Lock TCC manually
2. TCM throws the P0700 code: Torque converter slip/general transmission error code, and refuses to shift gear... fine by me for a few miles.
...some time later...
3. Unlock TCC manually
4. pre programmed PIC automatically clears code P0700 immediately.
5. TCM wakes up and decides which gear it should now be in.
Would need testing to make sure the TCM really behaves like this but I like it as a much simpler solution than trying to fake signals.
Can't be that hard to get a PIC to send one ODBII code can it?
Derek
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