Toyota and Lexus 89663-60A31 Firmware
Catalog reference for Toyota and Lexus firmware identifier 89663-60A31 and its likely engine control module family.
89663-60A31 is a Toyota calibration identifier associated with the engine control module family. This module manages engine operation using sensor inputs and programmed control strategies, including fuel delivery and ignition timing. The exact vehicle application and the changes associated with this calibration are not established by the identifier alone.
Catalog identification
The related catalog entry is 89663-60A31, and the listed file is 89663-60A31 (2).bin. The (2) suffix is part of the filename and does not, by itself, identify a modified variant or a particular software change.
Although the part-number family supports an engine-control association, the complete identifier does not establish a specific Toyota or Lexus model, engine, model year, or compatibility with another calibration.