Toyota and Lexus Firmware 353A3100-ii.cuw

353A3100-ii.cuw is a Toyota or Lexus firmware catalog identifier. The complete filename distinguishes this entry from other calibration records, but it does not reliably establish the control module, vehicle application, or software function.

The -ii suffix is part of the catalog filename. On its own, it does not establish whether this file is a stock or modified variant, or identify a particular feature.