Toyota Firmware 89663-0K780: Engine Control Calibration

89663-0K780 is a Toyota calibration identifier in the 89663 part-number family, which is commonly associated with engine control module software. Its exact vehicle application and the function of this particular calibration cannot be established from the identifier alone.

An engine control module uses software calibrations to manage engine operation, including fuel delivery and other functions appropriate to the engine. The 89663-0K780 identifier does not, by itself, establish which settings were changed or what effect this revision has on driving.