Toyota and Lexus Firmware 30439100-ii.bin
A catalog reference for Toyota or Lexus firmware 30439100-ii.bin and its calibration identifier.
30439100-ii.bin is a Toyota or Lexus firmware catalog filename. Its core identifier is 30439100, with an -ii suffix distinguishing this file entry.
The identifier and filename alone do not reliably establish which control module uses the firmware or what vehicle function it controls. The -ii suffix is not enough to identify a stock or modified variant or a particular software feature.
Controller identification and vehicle application require additional catalog or service information. The filename should not be treated as proof of compatibility with a specific Toyota or Lexus model.