FSM diagram Request

[Stock-S13]

ok guys as you have probably seen i have had some trouble with my transmission not entering reverse, and i waould just like to State you guys ARE VERY HELPFUL, with that being said i would to Bug you FSm guys for a Picture or perferably a step by step procedure for "Reverse Lock out" which is what i was told to look for in a FSm. I would greatly appreciate it Thanks in advance you guys. If there is no Such thing can i have a Transmissino diagram with somthing along the lines of my problem.i havent ruled out just getting another transmission but if it comes close or over ill probably just think about getting another trans. so thanks.

Edgar