Toyota and Lexus Firmware 89663-30723
Catalog reference for Toyota and Lexus calibration identifier 89663-30723 and its controller family.
89663-30723 is a Toyota or Lexus electronic control calibration identifier. Its 89663 part-number family is associated with engine control software, which manages functions such as fuel delivery, ignition timing and emissions control.
The association with the engine control module is tentative for this exact identifier. The code alone does not establish its vehicle application, the specific behavior of this calibration or any change made by the revision.