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Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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11-17-2015, 09:37 AM | #1 |
Not Yet Wild
Join Date: Nov 2015
Location: Delaware
Posts: 7
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Is it the controller or the motor?
I have a 2002 G19E that I have not seen run. I am getting 50.4 volts at Batteries, Batt. Side of solenoid is 50.4, other side 49.5. Two small leads 50.4. To and from key 50.4 to and from throttle sensor 50.4
I checked controller Pos. and Neg. getting 50.4. With key on and throttle peddle pushed down voltage went to 0 let off peddle, voltage went back up to 50.4 Any help would be greatly appreciated. |
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11-17-2015, 09:40 AM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Is it the controller or the motor?
From 50 to 0 somethings wrong. Did the solenoid click? Did you give all the cable ends the ole tug and twist test to see if one isn't just about ready to fall out and not giving enough connection.
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11-17-2015, 09:45 AM | #3 |
Not Yet Wild
Join Date: Nov 2015
Location: Delaware
Posts: 7
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Re: Is it the controller or the motor?
No. solenoid will not click. New solenoid and it won't click. cables are all good and tight. I cleaned cable ends and battery posts.
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11-17-2015, 10:29 AM | #4 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Is it the controller or the motor?
50v disappearing somewhere should produce smoke . So either the voltage has no amperage or it is disconnecting. Find a wire diagram and start checking the solenoid activation circuit while we wait for a Yamaha tech to show up
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11-17-2015, 10:54 AM | #5 |
Not Yet Wild
Join Date: Nov 2015
Location: Delaware
Posts: 7
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Re: Is it the controller or the motor?
I have been from front to back of it so many time checking everything. worked off the Yamaha wiring diagram.
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11-17-2015, 01:10 PM | #6 |
Not Yet Wild
Join Date: Nov 2015
Location: Delaware
Posts: 7
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Re: Is it the controller or the motor?
I am out of Ideas.
OK. I connected a voltmeter across the two small solenoid terminals. The negative voltmeters lead to one of the small terminals and the red lead to the other small terminal. I Activated the system by placing the key in on position, shifter in forward, and pushing on the accelerator. 0 Volts. I put the voltmeters positive lead to the positive connection on solenoid small terminal. Place Neg. Lead to battery pack negative. Activated the system. Got 50.3 volts Place voltmeter Neg. lead to the negative side of small activation connection. I Placed Pos. lead of voltmeter to system battery positive (at number one battery). Activated the system. 0 volts |
11-17-2015, 02:43 PM | #7 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Is it the controller or the motor?
The B- to energize the solenoid is supplied directly by the controller. If the relay does not click on then off when the "tow/run" switch is first turned on, and the tow/run is suppluing correct voltage the controller is likely bad.
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11-17-2015, 03:21 PM | #8 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,125
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Re: Is it the controller or the motor?
It sounds like you are getting voltage across the small terminals of the solenoid. If it isn't clicking, then the solenoid is bad.
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11-17-2015, 03:22 PM | #9 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,125
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Re: Is it the controller or the motor?
on second thought maybe you never did get voltage across the small terminals. Nevermind!
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11-17-2015, 06:18 PM | #10 |
Not Yet Wild
Join Date: Nov 2015
Location: Delaware
Posts: 7
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Re: Is it the controller or the motor?
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Tags |
controller, g19e, motor, yamaha |
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