Toyota Lexus Firmware 89663-36241
A catalog reference for Toyota and Lexus firmware identifier 89663-36241 and its calibration number family.
89663-36241 is a Toyota calibration identifier in the 89663 software part-number family. Numbers in this family are commonly associated with engine control module calibrations, which govern functions such as fuel delivery, ignition timing and emissions control. That controller association is tentative for this specific identifier.
The complete number identifies a particular calibration, but it does not establish a vehicle application or the change made in this revision. A matching calibration ID in a vehicle’s service record is more useful for identifying the installed software than a similar-looking number with the same prefix.