If the PCM has failed it could cause the transmission to slip and burn up the clutches by not applying pressure at the right time or at the correct pressure to prevent damage. If the PCM was working okay but the transmission failed the same way twice I would also suspect it's the PCM, as it could easily have failed causing the first issue, then the rebuild failed the same way for the same reason. Sort of like replacing the engine because it shut off and won't run, then installing the replacement and it only starting and shutting right off, then discovering it was all from a bad fuel pump. In this case I suspect an internal PCM failure.
Just because the solenoids respond to the scan tool doesn't really mean there isn't an internal issue in the control circuitry itself causing the problem.
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Friday, May 14th, 2021 AT 11:22 AM