found my E12 last week, had new batteries put in this week, found you guys tonite. it ran for a few minutes until I hit a bump and it cut out. I shifted the controller back to neutral and then back into forward and was fine until the next bump and then it cut out. then it just clicked every time I put it in forward. It is going in reverse fine. And it will run the motor in forward when the gearbox is in neutral. By reading a few old posts i will take a guess at a relay?

Second question for my new found friends! What the smaller plug next to the attachment plug?