Toyota and Lexus Firmware 89663-24451
Catalog reference for Toyota and Lexus firmware identifier 89663-24451 and its controller family.
89663-24451 is a Toyota and Lexus engine control module calibration identifier. The 89663 part-number family is associated with engine control software, which supports functions such as fuel delivery, ignition timing and emissions management.
The complete identifier distinguishes this calibration from other files in the same family. Its exact vehicle application and the changes made by this particular revision are not established here. The identifier alone should not be used to determine compatibility with a vehicle or replacement controller.