Used the original TEHCM with a Quick Learn & a extensive test drive, Not a catastrophic failure....Just a burnt 456 clutch. I have plenty of experience with 6L80E/6L90E builds & swaps, I don't bother with used T43 TEHCM's. Original or GM reman only.
Originally Posted by Timmastertech
That used trans isnt going to work without some extra work. That car is a global A vehicle which means used control modules are a no go. The 6 speed transmissions have the TCM internal to the trans. To make it work, you have a few options. You can try to virginize the tehcm in the replacement trans which may or may not be doable but it going to be done at the EEPROM level, you can swap the tehcm from the original trans to replacement, which may or may not be a good idea since you had a catastrophic fail, or put a new tehcm in the replacement trans and program with SPS. https://gm-techlink.com/?p=11221