Toyota 30C83100.cuw: Tundra Transmission Calibration
Toyota 30C83100.cuw is a transmission control calibration associated with a 2008 Tundra bulletin for diagnostic code P2714.
30C83100.cuw is a Toyota powertrain control calibration associated with automatic transmission control. Toyota lists calibration 30C83100 as an updated calibration in T-SB-0078-08 for the 2008 Tundra, a bulletin concerning an illuminated malfunction indicator light and diagnostic trouble code P2714.
P2714 relates to the performance or operation of transmission pressure control solenoid D. The transmission controller manages solenoids and hydraulic pressure to apply clutches and carry out gear changes. A problem in that control system can trigger the warning light and may affect how the transmission shifts.
What the bulletin identifies
In T-SB-0078-08, 30C83100 is the updated calibration associated with the P2714 concern. The record identifies the warning light and code as the service context. It does not establish that every vehicle showing P2714 has a software fault, or describe the precise internal changes in the calibration.
Toyota also lists 30C83100 as a previous calibration in T-SB-0170-09, whose vehicle scope includes the 2008 and 2009 Sequoia. That later record places the identifier in a subsequent bulletin history, but its listed model scope alone does not establish fitment for every vehicle covered by the bulletin.
The .cuw filename carries the complete calibration identifier 30C83100. No stock or modified variant label is present in the catalog name.