Toyota and Lexus Firmware 89663-60X23 (3).bin
A catalog reference for Toyota and Lexus calibration 89663-60X23, a likely engine-control software identifier.
89663-60X23 (3).bin is a firmware file associated with Toyota calibration identifier 89663-60X23. The 89663 part-number family is commonly used for engine control module calibration software, so an engine-control association is plausible. The exact application and function of this full identifier are not established by the catalog entry.
An engine control module uses calibration data to govern engine operation, including fuel delivery and ignition timing. That general role does not establish what this particular calibration changes or which vehicle it fits.
The related catalog entry is listed as 89663-60X23. The filename suffix (3) distinguishes the listed file, but it does not identify a stock or modified feature.