Toyota Yaris 1.4D 1ND-TV Firmware 89663-02F31
A catalog reference for Toyota Yaris 1.4D 1ND-TV firmware 89663-02F31 and its likely engine-control role.
89663-02F31 is listed as firmware for the Toyota Yaris 1.4D with the 1ND-TV diesel engine. The Toyota 89663 part-number family is associated with engine control computer software, making an engine ECU calibration the likely application.
The engine ECU manages diesel engine operation using sensor inputs and calibration data. Its work includes controlling fuel injection to support starting, power delivery, emissions and drivability. The catalog identifier alone does not establish which of those functions, if any, this particular calibration changes.
Reading the catalog identifier
The filename Yaris 1.4D 1NDTV 89663-02F31.bin identifies the vehicle, engine and calibration-style number. The .bin extension indicates a binary file. The related catalog entry 89663-02F31 repeats the same identifier but does not specify a stock or modified variant.
The complete number should be checked against the identification of the ECU being assessed. The catalog name by itself does not establish compatibility with every Yaris 1.4D or describe a specific software revision.