Melex no go

[CartsOfAnarchy]

Put brand new batteries in a melex of my dad's that he knows nothing about. I've only messed with club cars so the issue is not obvious to me. It has a controller but uses a large quick connect with a lot of small wires going in and out. It also has some terminals like the common Curtis controller on both ends. When applying the pedal there is no movement and no solenoid clicking. I've tested the microswitches and the solenoid and they all see to work. The cart is emaculant and none of the wires seem to have been messed with or cut. Where a club car uses the solenoid to cut power to the controller, this cart seems to take all the inputs through the controller first via the large connector. So I would say the controller actually actuates the solenoid.
Any ideas. Can't find any controllers that look like this one. What is the throttle input? Couldi just rewire it use a standard 1204 type controller?