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03-02-2015, 01:12 PM | #1 |
Not Yet Wild
Join Date: Apr 2014
Posts: 9
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'02 (AQ0250-234373)Car having speed issues
I am having problems with this car taking off fast but slowing within a few seconds. Tried the "roll away test" for the speed sensor and got no beeps or slowing effect. I changed the speed sensor but still having the same issue. MCOR was changed about 8 months ago. Any ideas what I can do next?
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03-02-2015, 01:28 PM | #2 | |
Getting Wild
Join Date: Oct 2012
Posts: 116
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Re: '02 (AQ0250-234373)Car having speed issues
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03-02-2015, 01:33 PM | #3 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: '02 (AQ0250-234373)Car having speed issues
Test procedures for speed sensor:
Disconnect the 3 pin connector from the speed sensor. Measure between Black and Red wires on the harness side of the connection. You should get approximately +15v if You don't get 15v: Measure voltage on controller connector (using back probe) pins #13 and #15If You get +15v on the speed sensor connector:If You get +15v, there is an issue with the harness between controller and sensor connector. Plug the speed sensor connector back. Use a wire piercing probe on the green wire at the speed sensor, place positive meter probe there. Place negative meter probe on pack negative or controller B-. As you slowly turn the wheel, the voltage reading should change from 0v to 5v every time a different magnet pole goes by the speed sensor. If the voltage does not change and You actually have a magnet at the end of the motor, the speed sensor is bad. |
03-02-2015, 03:43 PM | #4 |
revolutiongolfcars.com
Join Date: Mar 2010
Location: Golf Car Capital of The World... Augusta, Georgia
Posts: 10,224
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Re: '02 (AQ0250-234373)Car having speed issues
Aftermarket speed sensor? Could be bad out of the bag. I'm not a fan of the aftermarket sensors. What color are the three wires on the sensor?
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03-02-2015, 04:28 PM | #5 |
Not Yet Wild
Join Date: Apr 2014
Posts: 9
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Re: '02 (AQ0250-234373)Car having speed issues
Purchased from club car dealer. red, green, black
Last edited by GPMECH; 03-02-2015 at 04:31 PM.. Reason: gave wrong info |
03-02-2015, 05:05 PM | #6 |
Gone Wild
Join Date: Aug 2011
Posts: 553
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Re: '02 (AQ0250-234373)Car having speed issues
If you get the Red Black and Blue the B in blue could mean Bad had a couple of them
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03-02-2015, 05:37 PM | #7 |
Not Yet Wild
Join Date: Apr 2014
Posts: 9
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Re: '02 (AQ0250-234373)Car having speed issues
+13v on red and black wires on harness side
positive meter on green wire neg on -b controller get 11.4v before I turn tire goes to 12.9 when I turn the tire |
03-02-2015, 06:04 PM | #8 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: '02 (AQ0250-234373)Car having speed issues
The hall effect sensor should be bringing the Green output signal to 0v, so it is likely bad.
You can actually simulate the speed sensor to make sure the cart would respond correctly.
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03-02-2015, 06:05 PM | #9 |
revolutiongolfcars.com
Join Date: Mar 2010
Location: Golf Car Capital of The World... Augusta, Georgia
Posts: 10,224
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Re: '02 (AQ0250-234373)Car having speed issues
Check the magnet. If the magnet is broken it will act as if the sensor is bad. Now may be a good time to replace it with a high speed magnet.
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03-05-2015, 11:17 AM | #10 | |
Not Yet Wild
Join Date: Apr 2014
Posts: 9
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Re: '02 (AQ0250-234373)Car having speed issues
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