I reset the TCU throttle position with TLR software version 4.6. The three throttle load positions are Idle,100% and 115% Tolerances Idle 0-3% 100% 103-97% 115% 115-113% I had previously set my laptop up with the required TLR software version 4.6 and I had the correct USB to serial RS232 adapter cable, which made the reset very straight forward.