Toyota and Lexus Firmware 89663-24631
A catalog reference for Toyota and Lexus calibration identifier 89663-24631 and its engine-control firmware family.
89663-24631 is a Toyota-family engine-control calibration identifier. The 89663 part-number family is associated with software for the engine control module, which manages engine operation using sensor inputs and programmed control strategies.
The complete identifier distinguishes this calibration from other entries in the same family. It does not, by itself, establish the vehicle application or identify a specific change made in this revision.