Toyota Auris 1.4 D-4D Firmware 89663-12B01
A catalog reference for Toyota Auris E15 1.4 D-4D firmware 89663-12B01 and its likely engine-control role.
Toyota firmware 89663-12B01 is cataloged for the Auris E15 with the 1.4-liter D-4D diesel engine, identified as 1ND-TV. Its 89663 part-number family is associated with engine-control software, making an engine control module calibration the tentative classification for this file.
Engine-control context
The engine control module manages diesel operation using sensor inputs and calibration data. Its general responsibilities include controlling fuel injection and coordinating engine functions that affect starting, power delivery, fuel consumption and emissions. Those are functions of the controller family, not documented changes made by calibration 89663-12B01.
The catalog filename identifies the vehicle generation and engine but does not name a stock or modified variant, a specific feature, or a revision history. It therefore does not establish what changed in this calibration or which other vehicles it may fit.