Hi all. Was flashing the TCM on our 09 g8 last night with the new auto cal and custom tune. The ECM took fine. But the TCM set the $06ff error at the end of the flash and has the TCM all messed up. Tried reloading the tune on the autocal. Tried pulling the negative cable. Talked to the tuner he resent the tune and did the same thing. Any help would be great. Thanks.