DTC P0733: Incorrect 3RD Gear Ratio: Description
WARNING: This page is about a different car, the 2002 Mazda 626 and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
DTC will set if turbine speed and vehicle speed under preset value. ATF temperature must be above 68°F (20°C), transaxle in third gear ("D" position), engine speed 500 RPM or more, turbine speed 75 RPM or more, vehicle speed 19-30 MPH, brake pedal released and DTC P0500, P0710, P0715, P0750, P0755 or P0760 are not output.