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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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12-02-2013, 04:40 PM | #1 |
Not Yet Wild
Join Date: Mar 2012
Posts: 20
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Ezgo DCS goes forward in reverse
I have 99 ezgo dcs that goes forward in forward and reverse. Occasionally it will go backward in reverse. I replaced controller it worked in reverse twice and now back to old problem. Lost as to the next step.
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12-02-2013, 04:41 PM | #2 |
Not Yet Wild
Join Date: Mar 2012
Posts: 20
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Re: Ezgo DCS goes forward in reverse
forgot to mention..no power on orange wire #4 pin at controller.
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12-03-2013, 07:14 AM | #3 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Ezgo DCS goes forward in reverse
The orange wire is what tells the controller to go into reverse. No power to Pin-4 = No reverse.
Sounds like you've got an intermittent microswitch on the F/R assembly and now have two good DCS controllers. |
12-03-2013, 09:11 AM | #4 |
Not Yet Wild
Join Date: Mar 2012
Posts: 20
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Re: Ezgo DCS goes forward in reverse
that was my thought too. micro switch ohms out ok but going to check for broken wire today. Just wanted to confirm that I was going in the right direction.
Thanks for the info. |
12-03-2013, 09:52 AM | #5 |
Gone Wild
Join Date: May 2009
Location: Marietta, GA (USA)
Posts: 368
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Re: Ezgo DCS goes forward in reverse
Clip the meter onto the wire, put the cart in reverse, then wiggle the wire. See if the meter shows voltage occasionally.
..a |
12-03-2013, 10:03 AM | #6 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Ezgo DCS goes forward in reverse
I may be wrong but I think you might have 2 bad controls?
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12-03-2013, 10:39 AM | #7 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Ezgo DCS goes forward in reverse
Quote:
If it is there, the controller should be shifting to reverse. If it doesn't shift to reverse when Pin-4 has B+ on it, the controller is bad. Checking a microswitch can get a bit tricky when the N.C. (Normally Closed) contacts are used as the active state. Take a look at the attached cutaway of a typical microswitch and you should see why. All it takes is a little gunk around the plunger or debris in the indentation on the cam the roller drops into to keep the itty-bitty spring from closing the N.C. contacts. |
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12-03-2013, 10:43 AM | #8 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Ezgo DCS goes forward in reverse
I'm not clear on how a bad ms can make the cart go F in R or vise-versa ?
Going F in F&R is a common stock control failure. |
12-03-2013, 11:15 AM | #9 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Ezgo DCS goes forward in reverse
Quote:
And he also mentioned he wasn't getting B+ on Pin-4, which means the controller was not being told to reverse the direction of current flow in the field windings. Granted, there is the possibility he has two bad DCS controllers, but I would eliminate the possibility of a bad microswitch before buying another one. (Of course, I wouldn't have bought a stock DCS controller for a failed DCS controller because they are such high failure items. ) |
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12-03-2013, 11:25 AM | #10 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Ezgo DCS goes forward in reverse
Interesting too that the replacement control (possibly a reman) worked 2 times and fell to the same fault as the orig.
It will be interesting to see what the results are. Does this cart has big tires? Is it used on hilly or soft ground? If yes the loads could exceed the stock control limits. |
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