Toyota and Lexus Firmware 3YWF8900.cuw
Catalog reference for Toyota or Lexus firmware identifier 3YWF8900.cuw and its calibration file format.
3YWF8900.cuw is a Toyota or Lexus firmware catalog identifier. The full filename identifies the entry, but it does not reliably establish which control module or vehicle system the software serves.
The .cuw extension identifies the file format used for this catalog entry. The identifier alone does not establish a vehicle application, a stock or modified variant, or a specific change in vehicle operation.