Toyota and Lexus Firmware 89663-OCJ42
Catalog reference for Toyota and Lexus firmware identifier 89663-OCJ42 and its calibration-number family.
89663-OCJ42 is a Toyota or Lexus calibration identifier in the 89663 part-number family, which is associated with engine control software. Engine control calibrations govern how the engine controller manages functions such as fuel delivery, ignition and emissions operation.
The association with engine control is tentative for this exact identifier. The complete code does not establish a specific vehicle, engine or software change on its own, and a similar-looking calibration number should not be treated as an exact match.
Using the identifier in a catalog
Record 89663-OCJ42 exactly as shown when comparing it with a controller identification or service record. The character after the hyphen is the letter O in this listing, which matters when distinguishing it from a visually similar zero.