me thinks (just a guess) you have a 'pre-lx' version of an ev100 controller (no codes, no shielded dash wires to a 'z' plug for the hands set, the ev100 card will have plastic windows and trim pots behind the windows),
we will first need you to tell us the voltages, [with respect to battery neg]. on all 6 of the wires that are screwed on to the logics card, first with no one on the seat, then with someone on the seat, then in each stage as you try and drive (key on, direction selected, other direction selected) if you don't see wire numbers count the first row as 1,2,3 from the left, on the outer most row first.