Toyota 33512000.cuw: Transmission Shift Control Calibration
Learn how Toyota calibration 33512000 relates to transmission shift control and a P0770 service bulletin for the 2002 4Runner and Tacoma.
Toyota 33512000.cuw is associated with automatic transmission control, specifically the shift-solenoid operation monitored by diagnostic trouble code P0770. This calibration was listed as a previous version in Toyota service bulletin EG025-02, which addressed a malfunction indicator light on 2002 4Runner and Tacoma vehicles.
What the calibration controls
The engine and transmission control system uses solenoids to direct hydraulic pressure inside the automatic transmission. By switching these valves, the controller helps manage gear changes as vehicle speed, engine load and other operating conditions change. P0770 concerns the shift solenoid E control circuit or its operation, depending on the vehicle’s diagnostic procedure.
A fault detected in that system can turn on the malfunction indicator light. The code identifies an area for diagnosis, not necessarily a failed solenoid: wiring, hydraulic or mechanical conditions can also be relevant.
Where 33512000 fits in the bulletin
EG025-02 lists 33512000 as a previous calibration. Any calibration-related improvement described by that bulletin belongs to the updated revision, not to 33512000 itself. The bulletin covers both the 2002 Toyota 4Runner and 2002 Toyota Tacoma, but that scope alone does not establish that this exact calibration applies to every vehicle in either model line.
The record connects this identifier to a transmission-related warning-light concern. It does not establish a broader list of changes or identify a modified variant of 33512000.cuw.