How-to: clone GM Buick 6T30 transmission gearbox TCU with Launch X431 ECU & TCU programmer on bench.
Quick search 6T30 and select Buick Encore 2013-2019 6T30 gearbox TCU. Choose bench mode.
Check wiring diagram.
Connect 6T30 Gearbox TCU with Launch x431 ecu & tcu programmer
Connect TCU.
Back up FLASH data of the original TCU.
Disconnect the original TCU.
Connect a donor TCU with launch x431 ecu programmer. Back up flash data of the donor 6T30 TCM.
Write flash data to the donor TCM.
Clone 6T30 gearbox successfully. Now install the gearbox back to vehicle.