How do you fix code P0733 03 dodge neon?

Code P0733 indicates an issue with the transmission, specifically that the transmission is not shifting into third gear. To fix this, start by checking the Transmission Fluid level and condition, as low or dirty fluid can cause shifting problems. Next, inspect the transmission control module and wiring for any faults, and consider checking the solenoids and shift linkage for proper operation. If these steps do not resolve the issue, a professional diagnostic may be necessary to identify deeper mechanical problems.