Toyota 89663-0K352 Firmware Calibration

89663-0K352 is a Toyota engine control calibration identifier. It belongs to the 89663 part-number family associated with engine control module software, which governs engine operation using sensor inputs and programmed control strategies.

The complete identifier distinguishes this calibration from other 89663-family entries. The exact vehicle application, engine and changes made in this revision are not established by the identifier alone.