Toyota Yaris 1.5 1NZ-FE Firmware 89663-52Q31
A catalog overview of Toyota Yaris 1.5 1NZ-FE firmware 89663-52Q31 and its engine-control application.
89663-52Q31 is a Toyota engine-control software identifier cataloged for the Yaris 1.5 with the 1NZ-FE engine. It belongs to the engine control module software family, which manages engine operation using sensor inputs and programmed calibrations.
Engine-control role
The engine control module regulates functions such as fuel injection and ignition timing to support starting, drivability and emissions control. These are general functions of the controller. The identifier alone does not establish what changes this particular revision makes.
The catalog filename Yaris 1.5 1NZFE 89663-52Q31.bin associates the file with the Yaris and its 1.5-liter 1NZ-FE engine. It does not identify a stock or modified variant, a specific software feature or a service-bulletin revision.