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Electric Club Car Electric DS, and Precedent golf cars |
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07-24-2017, 10:37 PM | #1 |
Not Yet Wild
Join Date: Jul 2017
Location: Ohio
Posts: 8
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03 club car iq obc bypass
What voltage do you expect to see on the white wire with the run/tow switch on or off. I see battery voltage in run and 34 volts with the key in tow. It's a 48v cart.
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07-24-2017, 11:01 PM | #2 |
MOD of all BS!
Join Date: Sep 2011
Location: Florida
Posts: 17,477
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Re: 03 club car iq obc bypass
I actually thought it was the same as the OBC is still functional in Tow..... Sergio will have to let us know.
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07-25-2017, 08:01 AM | #3 |
Not Yet Wild
Join Date: Jul 2017
Location: Ohio
Posts: 8
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Re: 03 club car iq obc bypass
Before I started looking on the internet for known problems with Club carts. I tested a known good running cart with the same OBC that I have in my cart. The blue wire that runs from the OBC to the Curtis control has 39.8 v in a running condition. (48v cart) If you power down the OBC the voltage goes to 0 and stays there, until you power up the OBC by hitting the accelerator pedal and recharged the OBC. I see everyone connects the blue and the white wire together to bypass the OBC. I have the new Curtis Sepex updated controller that went from 250 amps to 350 amps. I just don't want to hurt the controller with the higher voltage.
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07-25-2017, 08:48 AM | #4 |
MOD of all BS!
Join Date: Sep 2011
Location: Florida
Posts: 17,477
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Re: 03 club car iq obc bypass
I know Sergio is very skilled with these electrical differences and explanations. Hopefully he will see this and be able to comment. If he doesn't in a day or so, try to PM him and ask him to please look at your thread.
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07-25-2017, 09:01 AM | #5 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: 03 club car iq obc bypass
The charger lockout is a "logic input" of 10ma, anything higher than 20v is considered a "high" logic signal.
Your voltage reading could have been caused by the meter impedance interaction with the circuit during measurement, do You know the input impedance of the meter that was used? In any event there is no risk of damage and connecting the White and the Blue wires together guarantees the Controller does not have the "not charging" logic signal when the Tow/Run is on Tow. |
07-25-2017, 10:29 AM | #6 |
Not Yet Wild
Join Date: Jul 2017
Location: Ohio
Posts: 8
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Re: 03 club car iq obc bypass
10 mega ohm impedance. The meter is a fluke 87
I didn't think battery voltage would hurt it being it has Multiple other full battery voltage inputs. I down loaded fsip wiring diagram. Pretty simple circuits. I might tear a part the obc and try to find the weak link in them. I can get all the parts from digikey or mouser. Thanks very much for your help. |
07-25-2017, 10:37 AM | #7 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: 03 club car iq obc bypass
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07-25-2017, 10:38 AM | #8 |
Not Yet Wild
Join Date: Jul 2017
Location: Ohio
Posts: 8
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Re: 03 club car iq obc bypass
I forgot to add this. To get around the factory charger issue not shutting off. I install a lester 48v timer assembly and left the factory style full wave rectifier in it. Seems to work good.
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07-25-2017, 10:40 AM | #9 |
Not Yet Wild
Join Date: Jul 2017
Location: Ohio
Posts: 8
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Re: 03 club car iq obc bypass
Thanks for the heads up. I won't waste my time taking it apart
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07-25-2017, 10:46 AM | #10 |
Gone Wild
Join Date: Feb 2017
Location: Richmond, TX
Posts: 1,026
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Re: 03 club car iq obc bypass
This one melted down... Can't fix this one...
Ooops this is a controller not an OBC... My bad. |
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