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COROLLA-2004-AT.cuw: Toyota Corolla Firmware Catalog Entry

A catalog reference for COROLLA-2004-AT.cuw, a firmware filename identifying a 2004 Corolla and an AT designation.

COROLLA-2004-AT.cuw is a firmware catalog filename that identifies a 2004 Toyota Corolla and includes the designation AT, commonly used for an automatic transmission. The filename alone does not establish which control module the file belongs to or what its software changes.

What the designation indicates

The Corolla and 2004 labels distinguish this entry by vehicle and model year. The AT label suggests an automatic-transmission application, but it does not by itself identify a transmission controller, an engine control module, or a specific calibration function.

The filename contains no stock or modified variant label and does not identify a revision or a particular driving behavior. Confirming its exact application would require a controller identification or calibration record associated with the file.

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