I NEED A WIRING DIAGRAM

It's possible that the motor, solenoid, or wiring has become disconnected or damaged. I recommend starting with a basic inspection of all the connections, wires, and components. If all looks alright, then you may need to have the motor and solenoid tested. If there is still no luck, then you may need to replace the EZGO golf cart motor or solenoid.

Some help in the link, but you may need dealer service to diagnose.

https://www.google.com/search?q=1996+ezgo+txt+golf+cart+buzzing+sound%2C+no+go

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It may need a repair

There are a ton of them available, apparently:

https://www.google.com/search?q=1999+TXT+EZGO+golf+cart+controller&oq=1999+TXT+EZGO+golf+cart+controller&aqs=chrome..69i57.1143j0j4&sourceid=chrome&ie=UTF-8

What do you want to know? There are plenty of websites that have that wiring diagram.

Service manuals are sold by EZGO but expensive. You might download some wiring diagrams from fsip.biz and buggiesgonewild.com.

http://www.buggiesgonewild.com/electric-ezgo/1536-basic-ezgo-electric-golf-cart-wiring-manuals.html

Dennis;
Here is a picture of ezgo wiring

use this link http://www.vintagegolfcartparts.com/cgi-bin/gallery/gallery.cgi?func=show&file=200332&Category=100013&Page=1

Tell me what cart you have and i can help. Not all carts get wired up the same way as this link demonstrates. In the pix pay close attention to how battery one gets hooked up as this sets the pattern

http://www.updateyourdriver.com/driver/?t202id=211793&t202kw=webcam&gclid=COTM4t-ZsJwCFQxM5QodWjoflQ