Toyota and Lexus Firmware 89663-30562: Calibration and File Variants
A catalog overview of Toyota and Lexus calibration 89663-30562 and its MOD, TUN and E2 file labels.
89663-30562 is a Toyota or Lexus engine control calibration identifier. The 89663 part-number family is associated with engine control module software, which manages functions such as fuel delivery, ignition and emissions controls. The identifier and filenames do not establish the exact vehicle application or the changes made by this calibration.
What the catalog variants identify
The listed files include 89663-30562 (2).bin and variants marked MOD or TUN. Those labels suggest modified and tuned files, respectively, but they do not describe the actual calibration changes. The parenthetical (2) distinguishes a filename and does not establish that the file is stock.
Some modified and tuned filenames also carry E2, including SW#89663-30562- MOD_E2.bin and 89663-30562-TUN_E2.bin. In tuning catalogs, E2 can indicate a change associated with a secondary oxygen sensor, but the label alone does not reliably establish what these files change or how the vehicle will behave.
The full calibration identifier helps distinguish this entry from other 89663-family records. Vehicle fitment and the contents of each variant require confirmation beyond the filenames.