Toyota and Lexus Firmware 89665-30L51
A catalog reference for Toyota and Lexus calibration 89665-30L51 and its likely engine control module family.
89665-30L51 is a Toyota or Lexus calibration identifier associated tentatively with the engine control module firmware family. An engine control module manages engine operation using sensor inputs and programmed control strategies, including fuel delivery and ignition timing.
The complete identifier distinguishes this calibration from other entries in the 89665 part-number family. It does not, by itself, establish a specific vehicle application or a change introduced by this revision.