I have the same problem as you on my 2019 Outlander. Impossible to write ECU everything fails even if TS508 is fully updated and I strictly respected the procedure 25 times. TS508 was stated compatible with my model so I would like AUTEL to explain me what is wrong. I can read all new sensors, also read the ECU easily but I cannot write new sensors ID or relearn the ECU. I think the TS508 can only clone sensors on Mitsubishi Outlander and is only compatible with your own programmable sensors and that's it. Or do we need a special cable adapter to access and write Mitsubishi ECU. Is the Bartec Mitsubishi adapter WRTOBD002 a possible solution to our problem ?