Toyota and Lexus Firmware SW#89663-30651-MOD_E2.bin
A catalog reference for Toyota and Lexus firmware 89663-30651 and its MOD_E2 variant label.
SW#89663-30651-MOD_E2.bin is a Toyota or Lexus firmware catalog entry in the 89663 software identification family. That family is associated with engine control module calibrations, which govern how the controller manages engine operation. The exact vehicle application and the changes in this file cannot be established from the identifier alone.
What the identifier describes
Engine control calibrations contain settings used by the engine control module when managing functions such as fuel delivery and ignition timing. Those are general functions of the controller family, not confirmed changes made by this particular file.
The related catalog entry 89663-30651 shares the complete calibration number. The filename adds MOD_E2, identifying it as a modified variant in the catalog. The label does not establish what was modified or define a specific E2 function. A stock file and a particular vehicle fitment are not identified by the available catalog name.