Toyota 89665-0C331.bin Firmware Calibration
A catalog reference for Toyota firmware 89665-0C331.bin and its engine control calibration identifier.
89665-0C331.bin is a Toyota engine control calibration file. The 89665 part-number family is associated with engine control computer software, which governs engine operation through functions such as fuel injection and ignition timing.
What the identifier tells you
The complete calibration identifier is 89665-0C331. It distinguishes this record from other Toyota engine control calibrations, but the catalog entry does not establish a specific vehicle application or describe a change made by this revision.
No stock or modified variant label is included with the filename. Its presence in a catalog therefore identifies the calibration record, not a particular tuning feature or a confirmed compatibility range.