Toyota Prius Firmware 89663-52N42 for the 1NZ-FXE Hybrid
A catalog reference for Toyota Prius firmware 89663-52N42, listed with the 1.5-liter 1NZ-FXE hybrid engine.
Toyota firmware 89663-52N42 is listed for a Prius with the 1.5-liter 1NZ-FXE hybrid engine. The 89663 part-number family is associated with engine control software, so this entry tentatively belongs to the engine control module and its management of the gasoline engine within the hybrid powertrain.
In normal operation, the engine controller manages functions such as fuel injection, ignition and throttle operation. It works with the hybrid control system, which coordinates when the gasoline engine runs alongside the electric drive system. The catalog identifies the engine application but does not establish what this particular calibration revision changes.
Catalog identifiers
The file Prius 1.5hyb 1NZ-FXE 89663-52N42.bin names the vehicle and engine, while 89663-52N42.bin contains only the calibration identifier. Neither filename identifies a modified variant or a specific software feature. The exact identifier is useful when comparing a calibration against vehicle and service records, but the filenames alone do not establish model-year fitment or interchangeability.