Ford P0783 OBD-II Trouble Code Definition: P0783 3-4 Shift Malfunction P0783 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0783 3-4 Shift What does the code mean? OBD-ii Code P0783 definition: This P0783 code indicates that the 3-4 shift valve in the valve body is locked in the direction of the spring compression. The Transmission Control Module […]