Chosen Solution
My 2011 G29 48V Yamaha golf cart wont go into reverse or drive. No beeper sound when in reverse either. Battery levels are full, and lights are on, charger shows a full charge.
Dave Dreer could be an issue with the controller as well as a fuse and many things in between. I suggest you start checking the wiring and see where you have power and at what point you do not. Let us know what you find