Toyota and Lexus Firmware SW#89663-30654-MOD_E2.bin
A catalog reference for Toyota and Lexus calibration 89663-30654 and its MOD_E2 firmware variant.
SW#89663-30654-MOD_E2.bin is a modified firmware file associated with Toyota calibration identifier 89663-30654. The 89663 part-number family is commonly associated with engine control software, so this file is tentatively linked to an engine control module.
An engine control module manages functions such as fuel delivery and ignition timing using sensor inputs and programmed calibrations. Those functions affect engine operation, but the identifier alone does not establish which settings this particular file changes.
What the file labels mean
The related catalog entry 89663-30654 identifies the underlying calibration. The filename adds MOD_E2, marking this as a modified variant. The label does not establish what the E2 modification does in practice, and the related entry does not identify a stock file or a specific vehicle application.