Hi, few months ago I wrote a tune file in to pcm and somehow lost cruise control, car came back and I wrote Ori file back to it and cruise control now works but car won't shift past 3 gear.
I scanned the car before and after and I see VVEL u1024 can bus comms fault and p0720 speed sensor fault.
Speedometer working.
it appears TCM bricked/limp now.
Any ideas how this can happen?