Toyota and Lexus Firmware 89663-60X14
Catalog reference for Toyota and Lexus firmware identifier 89663-60X14 and its calibration number family.
89663-60X14 is a Toyota or Lexus firmware calibration identifier in the 89663 part-number family, which is generally associated with engine control module software. The association with engine control is tentative for this exact identifier.
An engine control module manages functions such as fuel delivery and ignition timing using sensor information. The identifier alone does not establish which vehicle uses this calibration or what behavior this particular revision changes.