I have a 2003 Club Car DS 36 volt that only runs when the solenoid is jumped. We can touch the top terminals together with a wrench or screw driver and tires will spin in forward or reverse and will speed up when go pedal is pushed. But will not run with key in on position and go pedal presses. What could be the problem? Both small terminals show 18v I don’t know if that means something. Thanks in advance.