Toyota and Lexus Firmware 89663-24432
A catalog reference for Toyota and Lexus calibration identifier 89663-24432 and its engine-control software family.
89663-24432 is a Toyota calibration identifier in the 89663 part-number family, which is associated with engine control module software. The engine control module uses its calibration data to manage engine operation, including functions such as fuel delivery and ignition timing.
The identifier alone does not establish the exact vehicle application or the changes made in this revision. It should be distinguished from similarly numbered calibrations when checking a vehicle’s control module and service information.