Toyota Firmware 89663-01031 89663-01032.bin
A catalog reference for Toyota firmware identifiers 89663-01031 and 89663-01032.
89663-01031 89663-01032.bin is a Toyota firmware catalog entry associated with the identifiers 89663-01031 and 89663-01032. The 89663 part-number family is generally associated with engine control module software, so an engine-control calibration is a tentative classification for this entry.
An engine control module manages engine operation using sensor inputs and calibration data to control functions such as fuel delivery and ignition timing. The available identifiers do not establish the exact vehicle application or a specific change made by either calibration.
Understanding the catalog identifiers
The related catalog lists 89663-01031 and 89663-01032 separately. Their appearance together in the filename does not by itself establish which is a later revision, whether either is modified, or whether they are interchangeable for a particular vehicle.