Toyota Firmware 89663-0F106
A catalog reference for Toyota firmware identifier 89663-0F106 and its engine control calibration family.
89663-0F106 is a Toyota calibration identifier in the 89663 part-number family, which is associated with engine control module software. The engine control module manages engine operation using sensor inputs and programmed calibration data.
What the identifier tells you
The complete identifier distinguishes this calibration from other entries in the same part-number family. The code alone does not establish a specific vehicle application, software change or modified feature.
In practical terms, an engine control calibration can affect how the controller manages functions such as fuel delivery and ignition. Those are general roles of the controller, not documented changes attributable to 89663-0F106.