Toyota and Lexus Firmware 89663-30C02 (2).bin
A catalog reference for 89663-30C02 (2).bin, a Toyota and Lexus engine control calibration-family identifier.
89663-30C02 (2).bin is listed under calibration identifier 89663-30C02. The Toyota 89663 part-number family is associated with engine control computer calibrations, so this entry tentatively belongs to an engine control module, or ECM.
An ECM manages engine operation using sensor inputs to control functions such as fuel injection and ignition timing. Its calibration contains the settings that guide those functions. The identifier alone does not establish which engine or vehicle uses this file, or what this particular revision changes.
Reading the catalog name
The complete calibration identifier is 89663-30C02. The (2) suffix in the filename is not a documented stock or modified feature label, and the catalog name does not describe a special function for this copy.