Code -11 is accelerator switch is closed during power up. Possible short between CA205-3 and battery positive.
Code -68(-66) is a drop in voltage from mrc1 and mrc2. Check cable connections for both drive motors. Test both drive motors for shorts. Replace as necessary.
Hope this helps!
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.