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Old 09-12-2011, 04:01 PM   #1
muskydawg
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Default g19 solenoid test

My wife's g19 is dead. When I switch the tow/run switch it would only "click" once and a while. When it did "click" it would run. I figured that this might be the solenoid. I wanted to test it so I hooked both of the battery leads together on one post (this should replicate the solenoid closing right?). When I first touched them there was a decent spark but I did it anyway. After connecting them together the cart would not run. What controls the solenoid and was I wrong to connect them together? Also what was clicking when I used the tow/run switch? Thanks for your help.
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Old 09-12-2011, 05:56 PM   #2
99ezgo48
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Thumbs up Re: g19 solenoid test

I did the same thing only i bypassed the switch and everything works now (except the tow feature)
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Old 09-12-2011, 07:26 PM   #3
smallblock450sl
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Default Re: g19 solenoid test

It's really easy to "bench test a solenoid". Weather 12 /36 or 48 volts. There are 2 "small" wire leads and 2 big posts. The 2 small leads, (black ground and red positive) to activate the solenoid. Once activated, you should have continuity thru the 2 large posts. Just because you hear the solonoid "click", doesn't mean you have coninuity thru the large posts to let the current "flow".
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Old 09-12-2011, 08:54 PM   #4
muskydawg
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Default Re: g19 solenoid test

If I bypass the solenoid and connect the two battery leads together it should work shouldn't it? Also, why the arc when I touch the wires together, what is drawing power when the cart is not moving? Thirdly, is the solenoid only controlled by the tow/run switch? Thanks
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Old 08-28-2017, 04:59 PM   #5
Golfinw71
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Default Re: g19 solenoid test

Hello Yamaha Comrades, fello club car'er here. I'm trying to help a friend out with his g19. It won't run and I suspected it was the solenoid, hence the reason I stubled across this thread. Here is what I've tried:

1. Tow/run switch operates. In tow, the back up buzzer doesn't work. In run, it does.
2. Forward reverse switch I assume works because it turns the reverse buzzer on and off
3. I tested the accelerator stop switch, it completes the circuit when test.
4. throttle sensor. gives me the correct readings according to what I found in this section
5. no click from solenoid
6. I have tried bench testing by disconnecting the positive battery lead, then depressed the pedal while reading the small wire voltage...nada
7. I assume the controller is functioning because of the reverse buzzer operability
8. I have not tested the motor.
9. I did place the positive lead from the batt pack to the other pole similar to muskydawg and also experienced a spark. this scared me so I quit.
10. On off switch operates because it turns the batt pack meter on and off when I turn it

I am at a loss. Do I order a new solenoid and hope that does it or are there more tests I am not performing.

Thanks in advanced for the help Yamaha riders!
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Old 08-29-2017, 08:14 PM   #6
Golfinw71
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Default Re: g19 solenoid test

bump
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Old 08-29-2017, 10:48 PM   #7
cgtech
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Default Re: g19 solenoid test

Small spark is totally normal, controller has a bank of capacitors, they are low & need filling, they accept power at a amazing rate to fill. Small spark is totally normal, welding arcs not normal.
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Old 08-30-2017, 05:32 AM   #8
Golfinw71
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Default Re: g19 solenoid test

Ok, thanks cgtech. I'll bolt the two together then hook the positive up to the batt post and see if I can, once and for all, determine if it is the solenoid.


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