Does anyone have the procedure for fixing the e-21 code on a 2021 3310 with cab. My dealer was all about do it yourself and told me to contact spray behind the dash and some module below the stearing wheel. Bascially he's not coming out. I 'm not ashamed to admit that mechanics is not my thing. He said my software is up to date. Tractor struggles to start. I replaced the battery and tested so I know its good. Still it takes 4-5 cranks to start and I have to keep the battery on a charger for that reason. At this point I am lost. I've seen other postings but never one where someone has come back and said how it was eventually fixed.