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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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04-21-2017, 09:01 PM | #1 |
Not Yet Wild
Join Date: Jun 2013
Location: Virginia
Posts: 6
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Reverse doesn't work
Just purchased an 07 ez go I believe it is an ext. Used it last week and ran ok. Went to use it today started in reverse and it just shuttered then nothing. Forward still works. I put it on charge just to make sure that it wasn't the batteries. When the batteries showed over 80%. I tried it again. I can her a click but nothing in reverse. Any help on what took for would be greatly appreciated.
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04-21-2017, 09:24 PM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Reverse doesn't work
07 with a rocker switch F&R on the dash? Probably a bad F&R switch or bad controller.
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04-22-2017, 12:51 PM | #3 |
Card Carrying Old Fart
Join Date: Feb 2012
Location: Kentucky
Posts: 706
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Re: Reverse doesn't work
The '07 TXT PDS has a FNR rocker switch on the dash. Pop the rivets loose on the bottom of the dash panel pull the panel loose. The FNR switch has three wires on it. Make sure the rocker switch is in the center N position. I don't remember if the upper wire is for the F or R so be prepared for either. Put a jumper on the center wire to either the upper or lower and press the pedal and see if you get movement. Then do the same on the other.
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04-22-2017, 02:09 PM | #4 | |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: Reverse doesn't work
Quote:
In forward, the solenoid activates, and the controller defaults to forward. In reverse, the only difference is the reverse line is enabled. It's not one or the other, it's one or both. If it were the switch only, it would go forward while in reverse, if the reverse wire was not making connection. So this logic indicates that the controller is at fault. Anyone else see the logic in this conclusion? Or is my understanding of the PDS control logic flawed? Dunno, I never messed with a PDS cart, but the SepEX controls in EVs that I worked with used that sort of control logic. |
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04-22-2017, 02:53 PM | #5 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Reverse doesn't work
Quote:
The DCS controller defaults to forward and has to be told to go into reverse mode by putting battery pack voltage on Pin-4, however the PDS controller defaults to neither and has to be told to go into forward mode by putting the "Auxiliary" voltage from J1 Pin-1 on the controller onto J1 Pin-3, or into reverse mode by putting that voltage onto J1 Pin-2. One of the two microswitches on F/R assemblies of Series and DCS carts ought to be called the Run switch since its contacts are closed in both F and R, while the contacts of the other microswitch are only closed in R. For a PDS controller, the F/R switch is simply a SPDT/center Off switch. Ones set of contacts are close for Forward and the other set for Reverse, never are both sets closed at same time. (Unless the switch is FUBAB) |
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04-23-2017, 05:01 PM | #6 | |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: Reverse doesn't work
Quote:
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04-24-2017, 09:56 AM | #7 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Reverse doesn't work
Quote:
I've learned some of the theory of operation for AC drives, but transitioning from AC drive theory into AC drive reality is a gray area for me and the RXV manuals that I have been able to find aren't much help, nor are the Curtis manuals that I have been able to find. Of course, I haven't tried all that hard since I more interested in DC drive systems. |
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04-30-2017, 06:17 PM | #8 |
Not Yet Wild
Join Date: Apr 2017
Posts: 9
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Re: Reverse doesn't work
My Marathon did the same thing. After checking EVERYTHING, I purchased a new controller. It fixed the issue.
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