My former boss acquired a 1992 Yamaha G9E electric golf cart that ran at some point. I'm thinking it was a long, long time ago, but whatever. Anyway, he called me and asked me to take a look at it and do some troubleshooting on the golf cart. The wiring is a little funky here and there, and generally, the cart is not in that great of shape. Once it moves under its own power or is pronounced dead, I'm finished with it. Now, the question: Does anyone have a good somewhat step by step method of troubleshooting and checking the components of the electrical system? I am able to make the solenoid click and I get a resistance change as you move the throttle pedal. The F/R switch appears functional. There is no key and I don't mind running jumper wires while I am trying to see what is toast. I'll deal with the key switch and any rewiring once I know the controller isn't dead. Is there any way to test the individual components apart from the cart? Thanks in advance.
Yamaha G9E Golf Cart Troubleshooting
- Thread starter tipper
- Start date
Since that didn't get us anywhere...
Anyone know how to test the controller? What needs to be connected to make voltage go out to the motor? Since I do not know what exactly the speed control pedal should do when it is working, I'm not sure what to do with the input for that. I removed the controller to pop the cover off and see if anything was obviously burned, and I don't see anything. I clearly see what the ground and + inputs are. Then I see the output to the direction switch and motor. There are several other wires. Those going to the speed control pedal. Some others running off into the harness on a different 3 wire connector, and a single pink wire. I'm not looking at it or the wiring diagram at the moment, but that is what I remember.
Thoughts?
Anyone know how to test the controller? What needs to be connected to make voltage go out to the motor? Since I do not know what exactly the speed control pedal should do when it is working, I'm not sure what to do with the input for that. I removed the controller to pop the cover off and see if anything was obviously burned, and I don't see anything. I clearly see what the ground and + inputs are. Then I see the output to the direction switch and motor. There are several other wires. Those going to the speed control pedal. Some others running off into the harness on a different 3 wire connector, and a single pink wire. I'm not looking at it or the wiring diagram at the moment, but that is what I remember.
Thoughts?
It does not. But does no input from the speed control pedal cause it to not run? I'm assuming the key switch is going to be the thing causing the solenoid to engage. That is pure speculation, but I could see a case for that being the master disconnect with all speed changes (from no movement to full speed) being handled by the foot pedal through the speed controller.
Thanks for the idea.
Thanks for the idea.
BadToTheBone
Moderator
I think you should have a micro switch on the throttle for engaging the solenoid. I'm not 100% sure about this on a Yamaha but a wiring diagram will show the micro if it has one. There should be a wiring diagram in the Yamaha resources section on the main forum