Toyota Firmware SW#89663-52J01- MOD_e2 (2).bin
A catalog reference for Toyota firmware identifier 89663-52J01 and its MOD_e2 filename variant.
SW#89663-52J01- MOD_e2 (2).bin is a Toyota firmware catalog filename associated with calibration identifier 89663-52J01. The 89663 part-number family is commonly associated with engine or powertrain control software, which helps manage engine operation. That controller-family association is tentative for this specific file.
An engine or powertrain controller uses calibration data to govern functions such as fuel delivery, ignition timing and emissions control. The identifier alone does not establish which of those functions this particular calibration changes, or which vehicle it fits.
What the filename identifies
The related catalog entry is 89663-52J01. The filename adds MOD_e2, indicating a labeled modified variant, and (2) as a file-name suffix. The label does not explain the modification or establish a specific emissions-related change.