Toyota and Lexus Firmware 89663-FA731
A catalog reference for Toyota and Lexus calibration 89663-FA731 and its part-number family.
89663-FA731 is a Toyota or Lexus automotive firmware calibration identifier. It belongs to the 89663 part-number family, which is associated with electronic control module software calibrations.
The complete identifier distinguishes this calibration from others in the same family. The identifier alone does not establish its exact vehicle application, the system it controls, or the changes made in this revision.