When Sport started flashing on me it was the beginning of the end of my 5EAT
. There were no readable codes available to me as the codes set were TCU codes. Disconnecting the battery or resetting the ECU has no effect on the TCU. The second time it happened there was no mystery, 5th slipped. The next day 4th went. The rest is IPT history.
I hope this is not your issue, and shouldn't be with your level of mods.