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Unread 11-28-2009, 07:16 PM   #71
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Default Re: How does 48V 2001 Club Cart OBC function?

The bulb (really an led) has leads sounds like one is broken. Can fix if enough lead is left have done this with great success. Need to remove from dash then remove the lens from it by depressing the lens in at spots on side. remove the clips that hold led at broken in tuck lead in put back together, should work.
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Unread 11-29-2009, 11:02 PM   #72
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Default Re: How does 48V 2001 Club Cart OBC function?

tjnpd116, I had the same problem and it was caused by a bad cell in one battery. Use a hygrometer to check the charge level of each cell. There could also be two other causes: obc cutting off the charger too early, or repeatedly charging the battery after only a few miles. Trojan says battery life will be reduced if recharged when only 5% or so of capacity has been used. Best to recharge after at least 10% of capacity has been used.
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Unread 09-09-2010, 06:22 PM   #73
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Default Re: How does 48V 2001 Club Cart OBC function?

Wow!
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Unread 10-06-2010, 10:30 PM   #74
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Default Re: How does 48V 2001 Club Cart OBC function?

Dr Bob

I have red most of your posts and u appear to be very knowledgable of the 101909901-------- 21065-01 OBC. My problem is the charger will not kick in. I have confirmed the charger ok by connecting to another machine. I understand the third short pin to be part of an interlock circuit to prevent arching during charger connection. The gray fused wire goes to that short pin and is part of the interlock circuit. Having read and reviewed the manual on the charger I understand the charger interlock relay will not close if battery voltage drops below approx 32 volts. Since this gray wire goes directly into the OBC and it is sealed I must assume the power to supply the relay in the charger comes from the OBC. That being the case can I supply a sourse of power above 32 volts to the gray wire to confirm failure of the OBC to do so
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Unread 05-07-2011, 11:48 AM   #75
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Default Re: How does 48V 2001 Club Cart OBC function?

Hi DR Bob-
Having blown the OBC on my '99 Club Car. I just came across this thread you started some time. I too am a retiree (auto mechanic) living in The Villages (Piedmont) and am impressed with your comments and inquisitiveness. Would like to talk privately with you strictly about carts. Hopefully you'll get this message and contact me at the inserted email link. PatB
P.S. Have you found any sources for used parts?
mrpatbbb@yahoo.com
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Unread 05-07-2011, 07:26 PM   #76
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Default Re: How does 48V 2001 Club Cart OBC function?

I think the OBC grounds the center wire Inside the charger the relay is already connected to the hot line on 2006 not sure if 01 is the same
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Unread 05-07-2011, 07:33 PM   #77
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Default Re: How does 48V 2001 Club Cart OBC function?

Quote:
Originally Posted by mrpatbbb View Post
P.S. Have you found any sources for used parts?
mrpatbbb@yahoo.com
check with Blue Ribbon Golf Cars in Ocala
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Unread 05-17-2011, 08:12 AM   #78
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Default Re: How does 48V 2001 Club Cart OBC function?

DrBob: as a recovering geek (BSEE VaTech) myself, I completely understand your desire to understand the OBC, since it is a committed component of proper charging and operation. I bought a 2000 CC DS only three months ago and just finished a major rebuild that included a D&D motor, 500A controller, and electrical motor-reversing contactor. The later addition was included to vastly reduce power cable length and subsequently, losses, and required that I at least understand basic electrical operation (I'll post a build document as soon as I finish it). The OBC operation is largely unknown to me as well, but this forum has a multitude of competent contributors with practical if not anecdotal information from which one can ferret out insight. I can offer no more at this time than the common desire to understand operation to the point of being able to properly diagnose a problem when it does happen. I'm over in Melborne area and will one day be looking at the possibility of retiring in the Villages - you guys got something good going on over there! (I've been over to see a couple of the "Barefoot Man" concerts). Thanks for the posts and continue to share; its all good.

On committment - " The chicken is only a participant in breakfast, while the pig is committed!"
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Unread 05-17-2011, 01:50 PM   #79
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Default Re: How does 48V 2001 Club Cart OBC function?

Dr Bob or any other OBC Genius,

95 48v cc with lester obc. Ran a ton of tests per the manual to find out why my new solenoid is not clicking. The yellow 18 guage wire going from the obc to a small terminal on the solenoid is not doing what is is supposed to. I am able to connect a jumper from that terminal on the solenoid to the #6 battery (-) terminal and my cart will suddenly run like a champ. The charger side of the obc function still works great. Does anyone know what the full funtion of that little yellow wire is? If so, am i going to cause any major problems by creating my own ground to run the car?

Thanks
mpc
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Unread 05-17-2011, 03:50 PM   #80
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Default Re: How does 48V 2001 Club Cart OBC function?

Quote:
Originally Posted by mpcolwell View Post
Dr Bob or any other OBC Genius,

95 48v cc with lester obc. Ran a ton of tests per the manual to find out why my new solenoid is not clicking. The yellow 18 guage wire going from the obc to a small terminal on the solenoid is not doing what is is supposed to. I am able to connect a jumper from that terminal on the solenoid to the #6 battery (-) terminal and my cart will suddenly run like a champ. The charger side of the obc function still works great. Does anyone know what the full funtion of that little yellow wire is? If so, am i going to cause any major problems by creating my own ground to run the car?

Thanks
mpc
The yellow wire is the negative thru the OBC. when the cart is plugged into the charger the OBC disconnects this wire so the cart cannot move when being charged. Should have no problem leaving a jumper from solenoid to #6 neg. The other option is to replace the OBC but if the charging function is working ok no need to spend the extra bucks.Check the continuity of the yellow wire from the solenoid to the OBC. I had a faulty three pin plug that gave the same problem.
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