did you replace steer sensor or drive motor traction (speed) sensors on top of drive motor? Toyzilla is right you need to check your connections from sensors to steer controller and also (if possible) have someone operate travel circuit while watching led on sensors when motor is turning. MAKE SURE UNIT IS OFF OF FLOOR AND BLOCKED PROPERLY BEFORE TRYING TO WATCH LED'S FOR EVALUATION. Adjust air gap between sensors & brake drum should be.12-.16 if problem continues replace steer controller, yes it's pricey. one more thing check to make sure all componente are tight and secure.Traction sensors diconnected is code description.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.