Toyota/Lexus Firmware 89663-30352 (2).bin
Catalog reference for Toyota or Lexus firmware 89663-30352 (2).bin and its 89663-series calibration identifier.
89663-30352 (2).bin is a Toyota or Lexus firmware catalog entry associated with calibration identifier 89663-30352. The 89663 number family is commonly associated with engine control module calibrations, so an engine-control application is plausible, but the exact vehicle and controller are not established by this entry.
What the identifier indicates
If this file belongs to an engine control module, it would be part of the software used to manage engine operation. Depending on the application, that controller uses sensor inputs to regulate functions such as fuel delivery and ignition timing. Those are general controller responsibilities, not confirmed changes in calibration 89663-30352.
The filename suffix (2) does not identify a specific feature or modification. The related catalog name lists the same calibration identifier without a stock or modified variant label.