Toyota Corolla 1.8L 2ZR-FE AT Firmware 89663-02A46
A catalog overview of Toyota Corolla 1.8L 2ZR-FE automatic-transmission firmware 89663-02A46 and its engine-control context.
89663-02A46 is a Toyota engine-control calibration identifier cataloged for a Corolla with the 1.8-liter 2ZR-FE engine and an automatic transmission. It belongs to the 89663 calibration-number family associated with engine control module software.
What the calibration controls
The engine control module uses its software to manage engine operation, including fuel delivery, ignition timing and electronic throttle response. In an automatic-transmission vehicle, it also participates in coordinating engine torque with transmission operation. These functions affect starting, drivability, fuel economy and emissions.
The filename Corolla 1.8L 2ZRFE AT 89663-02A46.bin identifies the engine and transmission configuration, but it does not describe a particular change made by this calibration. The catalog entry also does not identify it as a modified file or name a special feature.
Using the identifier in context
The complete identifier matters when comparing calibration records. A similar 89663 prefix identifies the same broad numbering family, not necessarily the same application or revision. The catalog name does not establish a model year, market or interchangeability with another Corolla calibration.