Toyota and Lexus Firmware 89663-10230-A
A catalog reference for Toyota and Lexus firmware identifier 89663-10230-A and its related calibration entry.
89663-10230-A is a Toyota or Lexus firmware identifier related to the catalog entry 89663-10230. The 89663 part-number family is associated with engine control computer calibrations, so this entry tentatively belongs to the engine control system.
An engine control module uses calibration data to manage functions such as fuel delivery and ignition timing. The available catalog identifier does not establish which vehicle uses this calibration or what change the -A designation represents.