Toyota Yaris 1.5 1NZ-FE Firmware 89663-52G31.bin
A catalog reference for Toyota Yaris 1.5 1NZ-FE firmware 89663-52G31, associated with the engine control computer.
89663-52G31.bin is cataloged for a Toyota Yaris 1.5 with the 1NZ-FE engine. The 89663 part-number family is associated with Toyota engine control computer software. Its role is to support engine management, including fuel delivery and ignition timing, which affect how the engine starts, runs and responds to the accelerator.
What this calibration identifies
The complete identifier 89663-52G31 distinguishes this record from other Toyota engine computer calibrations. The filename identifies the vehicle and engine application, but it does not describe a particular software revision, operating change or modified feature.
Engine control software uses sensor information to determine operating commands under conditions such as starting, idling and acceleration. Those are general functions of the controller, not evidence that this particular file changes any one of them.
Catalog label and application
The listed filename has no stock or modified variant label. The catalog association points to the Yaris 1.5 1NZ-FE, but the identifier alone does not establish a model year, market or compatibility with every Yaris using that engine. Matching a file to a vehicle requires checking the control computer and calibration identification for that vehicle.