Toyota RAV4 89663-42522 Engine Control Calibration
Explore Toyota 89663-42522 firmware, cataloged for the RAV4 ACA31 with a 2.4-liter 2AZ-FSE engine.
89663-42522 is an engine control calibration cataloged for a Toyota RAV4 ACA31 with a 2.4-liter 2AZ-FSE engine. It belongs to Toyota’s 89663 engine-control software part-number family, associated with the engine control module rather than a body or infotainment system.
The engine control module uses calibration data to manage how the engine runs, including fuel delivery and ignition timing. Those controls affect starting, throttle response, emissions and everyday drivability. The catalog identifier establishes the software association, but it does not describe a specific change made by this revision.
What the catalog filenames show
The descriptive filename RAV4 (ACA31) 2.4L 2AZFSE 89663-42522.bin links the calibration to the ACA31 RAV4 and the named engine. The second filename, 89663-42522.bin, identifies the same calibration without additional vehicle or variant details. Neither filename names a modified feature or a particular operating change.
The filename is useful for identifying the catalog entry, but it is not a complete fitment statement for every ACA31 RAV4. Vehicle specification and the existing engine control calibration remain important when identifying the appropriate software for a particular vehicle.