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Old 05-11-2019, 02:03 PM   #1
kokkos88
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Default DS48V-IQ forward fine, no revers🇳🇴

Hey!
I`ve been doing a total restoration on my 03 DS 48V IQ. Not easy, and VERY expensive, when you live in Norway (probably under 30 people owning a private golf cart in whole Norway).
Just finished connecting all the wires, aaaaand the car wont go in revers. Forward works fine.

In revers it makes a click sound when i push down the throttle and a few second later it makes a new click sound, with the throttle still down. Sometimes it starts pulling backwards for a split second, very gently and without any power.
- The clicking comes from the solenoid, or the obc. Not the pedals.
- Serialnumber is AQ0339-329643
- FNR rocker switch is cleaned. Forward works when I switch F with R in the switch, but revers still only clicks.

I REEAAALY dont want to buy a new controller, so i was hoping somebody might help me figure out whats wrong.

Thanks🇳🇴
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Old 05-11-2019, 02:31 PM   #2
kgsc
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

Do you get a reverse buzzer sound?
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Old 05-11-2019, 02:35 PM   #3
kokkos88
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

yep the reverse buzzer works annoyingly well....
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Old 05-11-2019, 03:49 PM   #4
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

Well that just means that the controller knows you have put it in reverse. Forward and Reverse are controlled by the controller. If reverse isn’t working then it is very possibly the controller.
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Old 05-11-2019, 03:55 PM   #5
kokkos88
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

any way i can change some wires that makes revers work and not forward? just to make shure its nothing else....
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Old 05-11-2019, 04:10 PM   #6
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

The motor spins forward and backwards based on polarity sent to the motor. The wires are the same. The controller chooses which direction based on input from the fnr switch. If you just want to see if the motor spins backwards you can swap F1 and F2. Cart will run backwards in forward and forward in reverse.
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Old 05-12-2019, 12:19 AM   #7
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

Yes, as Kgsc stated, swap the F!/F2 wires at the controller or motor, whichever is most easily accessible. If it runs in reverse now when you place your rocker in Fwd, you will have confirmed a bad controller.
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Old 05-12-2019, 02:58 AM   #8
kokkos88
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

So if I switch the cables on the motor, and i get revers when fnr is in «f», its definitely a bad controller?

thanks for all the help!🙏
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Old 05-12-2019, 05:42 AM   #9
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

F and R are switched electrically in the controller. If F works then the high current side is good. If R doesn’t but you hear the buzzer the controller is not switching to reverse. Get the model number off of your controller and post it here. Someone might have a used one left over from an upgrade.
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Old 05-12-2019, 06:40 AM   #10
kokkos88
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Default Re: DS48V-IQ forward fine, no revers🇳🇴

switch the cables on the motor, and revers worked but forward didnt. I have to take the controller apart and see if i can find something that can be fixed, though it doesnt seem to be alot of people trying it. Most likely I wont be able to fix it, and have to buy a new one.

The controller is a curtis pmc model 1510-5201, i try and read the sale/buy thread and see what i can find...

thanks again for the help!
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