I have installed a 6L80 from a 2010 Camaro in a 1988 Silverado, with an L83 engine. The TCM software is from a 2018 Silverado. When checking in VCM Scanner, I haven?t got the trans fast learn button, but only trans adapt reset, preset and fast adapt reset.
However, nothing seem to happen when I push these buttons. Is it still happening something in the TCM?
I have done it with transmission fluid hot enough, but still Trans fast relearn status is
?disabled?.
Am I doing something wrong?