@gerryr, this could be as simple as the reverse switch being the problem. It is a mechanical contact and could be not making the connection. You can check that by switching the wires from the forward/reverse switch and see if you now have only reverse. If so, you know it's the switch. You did not tell us if your cart has a backup beeper and if it still comes on. Also, let us know if this cart has a dash mounted toggle switch.