Toyota Yaris 1.5 Firmware 89663-52Q31
A catalog reference for Toyota Yaris 1.5 1NZ-FE firmware 89663-52Q31 and its likely engine control application.
89663-52Q31 is listed in a firmware catalog for a Toyota Yaris with the 1.5-liter 1NZ-FE engine. Its 89663 part-number family is associated with Toyota engine control software, making an engine control module application likely.
The engine control module manages functions such as fuel injection and ignition timing using sensor information and the driver's accelerator input. Those calculations help the engine respond to driving demands while operating within its emissions controls. The catalog entry does not identify a specific change made by this calibration.
What the catalog filename identifies
The filename Yaris 1.5 1NZFE 89663-52Q31.bin names the vehicle, engine and complete calibration identifier. It does not include a stock or modified variant label. The filename alone does not establish the model year, market, transmission or compatibility with a particular vehicle.