Toyota Sienna Firmware 30812000.cuw
A catalog guide to Toyota Sienna calibration 30812000.cuw and its status in Toyota service bulletins EG055-06 and T-TCI-2626.
30812000.cuw is a Toyota Sienna calibration identified as an updated version in Toyota service bulletins EG055-06 and T-TCI-2626. The bulletins cover 2004–2006 Sienna models, although their combined model-year scope does not establish fitment for every vehicle.
What the calibration record establishes
The full calibration identifier is 30812000, and the catalog filename is 30812000.cuw. Both service records list this ID as an updated calibration. The available record details do not identify the control module, the function changed or the symptoms addressed, so the file cannot be reliably assigned to a specific vehicle system from those details alone.
In a service context, the identifier is useful for distinguishing the calibration from other Sienna software records. The applicable bulletin and the vehicle’s existing calibration are needed to establish whether it is relevant to a particular repair.