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Old 11-27-2017, 03:21 PM   #1
1gasman007
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Default 2000 DS intermittent operation

Hello, new to the site. Have read through many posts and cannot seem to figure it out. I have a 2000 club car DS 48v. Has new batteries. All show 8 plus volts , have 53 or so volts across the whole pack. Was working fine , sat for a few weeks. Went to use it and it acted like batteries were dead, would hardly move under its own power. Charged batteries, same thing. Have done as many tests as I could find in here and you tube. Sanded the contacts on the potentiometer and it started working, I put it all back together to test drive and of course no power again. So I figured the pot was bad, ordered a new one, installed it and same issue. Any help is appreciated thanks.
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Old 11-27-2017, 07:26 PM   #2
TahoeDawgZ71
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Default Re: 2000 DS intermittent operation

What is your vehicle serial number? Do you have a lever operated F&R switch or a push button/toggle style switch? Is there a Tow/Run switch under the seat?
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Old 11-27-2017, 07:44 PM   #3
1gasman007
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Default Re: 2000 DS intermittent operation

A0023-894662 It has the lever style f/r switch and no tow switch under the seat
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Old 11-27-2017, 08:46 PM   #4
Roxyflash
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Default Re: 2000 DS intermittent operation

Had one last year did same thing turned out to be a bad controller
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Old 11-27-2017, 09:50 PM   #5
TahoeDawgZ71
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Default Re: 2000 DS intermittent operation

Confirm that your voltage is staying strong while you're driving it by monitoring the voltage during operation. If the voltages are strong, check the throttle signal to the controller. Un-plug the small green and yellow blade terminals from the controller. Insert the probes of your multimeter into the ends of these wires you just unplugged. Set meter to 20k ohms. Put F&R switch in FWD and cycle the pedal. You should get a reading of 5000 ohms at no pedal all the way down to 0 ohms at full throttle. If you're getting these results, it confirms that you're getting the correct throttle signal to the controller. I'd be interested to know that the full pack voltage was getting to the controller while operating as well, but I doubt this would be your issue, as series cars seem to chatter under low voltage rather than just run slowly. But you can check this by probing B+ on the controller and B- on the controller while driving, with your meter set to 200VDC. Let me know what you find. The Alltrax SR-48300 series controller is an excellent option for your cart and will bolt into the existing mounting holes that your current controller uses.
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Old 11-28-2017, 12:12 PM   #6
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Default Re: 2000 DS intermittent operation

Cart is currently not running. It’s more of no go and intermittently it will work.
Has 50 volts at batteries weather the throttle is on or off. I checked the ohms on the green and yellow wires. Throttle off it was 5.4 M ohms. (Auto ranging meter)When I push the throttle the meter goes to OL immediately.
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Old 11-28-2017, 06:38 PM   #7
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Default Re: 2000 DS intermittent operation

Do you have a meter that is not auto-ranging? I'd feel more comfortable with those readings before I tell you that you need a potentiometer or a controller.
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Old 12-07-2017, 01:47 AM   #8
1gasman007
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Default Re: 2000 DS intermittent operation

Sorry for the delay in responding. So I made sense of the meter when I tested the correct wires. Since I'm color blind I had the red and green wires confused lol. So I'm getting a reading of 5800 ohms at no pedal and it gradually drops as pedal is pushed, ending at 5 ohms. I'm assuming that's close enough? When I tested the controller + and - I'm getting 50 volts no pedal and 45.8 volts full throttle, even though its only trying to creep along. I'm thinking its the controller. According to the sticker it's a reman... What do you think? Thanks
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Old 12-07-2017, 11:10 AM   #9
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Default Re: 2000 DS intermittent operation

Inspect the F&R switch very good for heat damage. Take the switch off of the body and inspect both sides. If you find that one of the contacts has gotten hot and sunk into the switch it will keep the car from running.
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Old 12-10-2017, 10:47 AM   #10
1gasman007
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Default Re: 2000 DS intermittent operation

Removed and inspected F&R switch, no signs of heat damage on either side, although the blue cable going to the switch looks like it was hot at some point where the terminal is crimped on, doesn't look bad enough to cause a no run issue. Is there a way to test F&R switch or bypass for testing purposes? thanks
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