Toyota and Lexus Firmware 89663-24430
A catalog reference for Toyota and Lexus calibration 89663-24430 and its engine control software family.
89663-24430 is a Toyota or Lexus engine control calibration identifier. The 89663 part-number family is associated with engine control module software, which governs functions such as fuel delivery, ignition timing and emissions control.
The engine control module uses sensor information to adjust engine operation as driving conditions change. Its calibration supplies the settings and control strategies used by the module. The 89663-24430 identifier alone does not establish a particular vehicle application or describe a specific change made by this revision.