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Unread 08-27-2013, 08:58 PM   #1
Not Yet Wild
 
Join Date: Aug 2013
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Default Ezgo 36v series Dvm readings

2001 ezgo 36v series... no go. Solenoid clicks. DVM readings across B- and -M @ the controller are only 1.5 v, shouldn't this be close to pack voltage?
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Unread 08-28-2013, 07:22 AM   #2
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Default Re: Ezgo 36v series Dvm readings

When pedal is pushed only far enough for the solenoid to click, you should read full battery pack voltage between B- and M- terminals on controller.

If you don't you have an open (or high resistance) in the high current loop.

Here is a schematic with the high current circuit highlighted.
Leave the negative test lead connected to B- and go searching for the missing voltage.

With a series drive system, chances are high the problem is in the F/R switch contacts.
Attached Images
File Type: jpg Wiring Diagram - Series- Hi-Current traced.JPG (59.3 KB, 0 views)
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Unread 08-28-2013, 03:51 PM   #3
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Default Re: Ezgo 36v series Dvm readings

Thanks for the help JohnnieB. Ran these test, found 6 gauge from f/r switch C to A2 on motor was corroded into. Rolling again!
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Unread 08-28-2013, 04:42 PM   #4
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Default Re: Ezgo 36v series Dvm readings

Glad you found and fixed it.

Do your cart and yourself a favor and replace all 13 of the high current cables with 4Ga or heavier.

The cables should be constructed with high strand count (600+) copper conductor welding cable. The terminal lugs should be the enclosed end type with no exposed wiring and the gap between the lug and insulation should be sealed air tight.
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Unread 08-28-2013, 08:22 PM   #5
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Default Re: Ezgo 36v series Dvm readings

hi guys! been a while! just wanted to say hi... and I recently installed Scotty's cable upgrade kit 4ga. Nice cables and even though I had 4ga on almost everything there was a smaller cable(forgot which one) in the control box. Anyways I can feel the difference!!

Anyways great cables.. oh and I installed Scotty's DMV on the dash... works and looks great.
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