Toyota 89663-0T230 Firmware: Calibration Catalog Reference
A concise catalog reference for Toyota firmware identifier 89663-0T230 and its calibration family.
89663-0T230 is a Toyota firmware calibration identifier in the 89663 part-number family, which is associated with engine control software. Engine control calibrations provide operating data used by the engine control module to manage functions such as fuel delivery, ignition timing and emissions control.
The association with engine control is tentative for this complete identifier. The identifier alone does not establish the exact vehicle application, engine or software changes in this revision.