I asked a number of questions which you have failed to answer.
I did not ask these questions for fun and games. I asked them to help YOU try to solve YOUR problem.
I do not own this bike, nor am I being paid to fix it.
I do diagnostics and troubleshooting for a living, and have done so for many years. This is not new. People want to pick and choose which answers they think are important, and which are not. If you knew that, you should be able to fix it yourself.
You have an orphan product from a company that has been restructured and/or under new ownership. The drive and controller may no longer be in production, and that bike may have been made for only one year.
I have two more questions that the answers will pretty well nail down where the wires go, if accompanied by the rest of the missing answers. But, what's the point? You don't want to provide the required information.
At my company, the person who provides free tech support, and free research, is named Helen Hunt. If you need the solution without providing the necessary information, you can go to Helen Hunt for it.