Toyota 89663-26D30-B Firmware Calibration
A catalog reference for Toyota firmware 89663-26D30-B and its related calibration identifier 89663-26D30.
89663-26D30-B is a Toyota automotive firmware identifier related to the catalog entry 89663-26D30. The 89663 part-number family is associated with engine control software, so this entry tentatively belongs to an engine control module calibration.
What the calibration family controls
An engine control module uses software and calibration data to manage engine operation, including fuel delivery and other functions appropriate to the engine. Those are general controller functions, not documented changes made by 89663-26D30-B.
The related catalog name does not identify a vehicle, engine, service bulletin, or named stock or modified variant. The complete identifier, including the -B suffix, should therefore be retained when comparing calibration records. Its specific application and any changes in this revision are not established by the catalog entry.