Toyota and Lexus 89663-30C20-A Firmware
A catalog reference for Toyota and Lexus firmware 89663-30C20-A and its related 89663-30C20 calibration identifier.
89663-30C20-A is a Toyota or Lexus engine control calibration identifier. The 89663 part-number family is associated with engine control module software, which governs engine operation through functions such as fuel delivery, ignition timing and emissions control.
The related catalog entry is 89663-30C20. The available identifier does not establish the exact vehicle application or a specific change made by the -A revision. It also does not identify a named stock or modified variant.