I put 3x 12 v batteries in it for testing. But I haven't found the manual for diagnostics for the controller I have with 4 large terminals on top. The one I have shows 3. I have voltage to and from the non existent key switch. Which is a toggle switch at the moment. The solenoid clicks when depressing the pedal but no power out. That's as far as I have gotten.
I'll probably be picking up my other 4 carts this weekend. 1 is identical to this one.
From left to right in pic. I have A2:B+:B-:M-
An explanation of what they are and how the system works would be helpful. Thanks