Toyota Avalon_GSX3#_3.5_V689661-0747289663-07072-89663-07072_MOD.bin Firmware
Catalog overview of the Toyota Avalon GSX3# 3.5 firmware identifier and its modified variant label.
Avalon_GSX3#_3.5_V689661-0747289663-07072-89663-07072_MOD.bin is a Toyota Avalon firmware catalog entry identified with the GSX3# model-code family and a 3.5-liter engine designation. Its filename marks the file as a modified variant, but does not identify the modification or the vehicle function it changes.
What the identifier says
The identifier includes the calibration string V689661-0747289663 and the part-number-style sequence 07072-89663-07072. These details help distinguish the entry from similarly named Avalon files, but they do not reliably establish which control module uses it or what this revision controls.
The MOD suffix applies to this filename. It indicates a modified file rather than identifying a specific feature, such as a change to engine response or emissions control. The name alone also does not establish the exact vehicle fitment or describe the differences from a stock file.