Toyota and Lexus Firmware 89663-F0112
A catalog reference for Toyota and Lexus firmware identifier 89663-F0112 and its ECU calibration-number family.
89663-F0112 is a Toyota calibration identifier in the 89663 part-number family, which is associated with engine control module software. An engine control module manages functions such as fuel delivery, ignition timing and emissions controls using sensor readings and operating conditions.
The association with engine control is tentative for this exact identifier. The code alone does not establish the vehicle application, the specific functions of this calibration or what changed from another revision.
Identifying the calibration
The complete identifier, 89663-F0112, matters when comparing a vehicle’s control module information with a service or calibration record. A similar 89663 prefix identifies a related numbering family, not necessarily the same software or vehicle application.