Toyota and Lexus Firmware 89663-42GOO
Catalog details for Toyota and Lexus firmware 89663-42GOO and its related 89663-42GOO-A identifier.
89663-42GOO is a Toyota and Lexus firmware catalog identifier. The related entry, 89663-42GOO-A, shares the full identifier and adds an -A suffix.
The 89663 part-number family is associated with engine control software, so an engine control module association is tentative. The exact identifier and related catalog name do not establish the vehicle application, the software’s specific function, or what the -A suffix denotes.