Toyota Firmware 3YWK0400-FJ-2009-4WD AT-SUPERCHARGE.bin

3YWK0400-FJ-2009-4WD AT-SUPERCHARGE.bin is a Toyota firmware catalog filename that combines a calibration identifier with vehicle and variant labels. The filename points to an FJ application labeled 2009, four-wheel drive and automatic transmission, with a SUPERCHARGE variant.

What the supercharge label means

A supercharger forces additional air into the engine, allowing more fuel to be burned and increasing potential power and torque. An engine calibration for a supercharged application can account for the different airflow and operating conditions. The filename alone does not establish which control module this file belongs to or which settings it changes.

The AT and 4WD labels distinguish this entry from configurations with a different transmission or drivetrain. 3YWK0400 is the identifier to compare when checking the catalog record. The SUPERCHARGE label describes this named variant, not a confirmed change from a particular stock file.