2006 EZ-GO 2+2 Sport possible short in wiring

[neighborhoodcartdude]

I was driving my cart the other day and I stopped to talk to some friends. When I went to leave it would not move forward or backward. The beep would sound when I put it in reverse, but nothing would happen when I tried to move forward or in reverse. I wiigled a bunch of wires and then all of a sudden it worked. A few hours later the same thing happened. THe lights, horn, etc all work but the cart will not bove forwards or backwards. Also when I recharge my batteries, the charger makes a low different sound than it normally does. Can aynone provide me with any guidance on how I could trouble shoot this and be able to stop wiggling wires and corssing my fingers. Thanks in advance for your help