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-   -   2003 will not move (http://www.buggiesgonewild.com/electric-ezgo/95153-2003-will-not-move.html)

Rattler 06-14-2014 10:25 PM

2003 will not move
 
I have a 2003 ezgo that will not move batteries are full charged solenoid clicks and reverse beeper works

JohnnieB 06-15-2014 09:42 AM

Re: 2003 will not move
 
Welcome to BGW!

Is it a Series Drive or PDS?
If it has a Run/Tow switch on the controller cover and the F/R selector is a rocker switch on the dash, it is a PDS.

Rattler 06-15-2014 10:15 AM

Re: 2003 will not move
 
It does not have switch on dash Or switch on controller

JohnnieB 06-15-2014 10:28 AM

Re: 2003 will not move
 
1 Attachment(s)
Okay, you've got a series cart (series wound motor).

The solenoid clicks, so the problem is in the high current circuit.

Lift the rear wheels off the ground and put on jackstands so the half ton cart doesn't take off unexpectedly and run over someone or something.

Connect your DVM between the controller's B- and M- terminals.
Press pedal just far enough for the solenoid to click.
You should measure FULL battery pack voltage.

If not, use the attached schematic with the high current circuit highlighted to find the missing voltage.
(Current path show with F/R in F)

Rattler 06-15-2014 10:36 AM

Re: 2003 will not move
 
Thanks will do. May be a day or two before I can get back to it but I will check it out

Rattler 06-22-2014 07:14 PM

Re: 2003 will not move
 
Finally got back on this cart when I touched my meter across B- and m- I read 37 volts and cart started working ran for about an hour and stopped again same symptoms as before

yurtle 06-22-2014 07:27 PM

Re: 2003 will not move
 
Repeat test in Post #4 above.

Rattler 07-11-2014 06:32 PM

Re: 2003 will not move
 
Cart stopped again each time I connect my volt meter between m- and b- it reads full voltage and cart starts working again as I depress accelator voltage decreases with speed increase

mgray70 07-11-2014 07:39 PM

Check the connection in the 4 pin molex connector that connects the ITS to the controller. A bad connection there could cause this.

Rattler 07-11-2014 09:19 PM

Re: 2003 will not move
 
Connections appear to be tight and very clean

JohnnieB 07-12-2014 08:15 AM

Re: 2003 will not move
 
Quote:

Originally Posted by Rattler (Post 1050685)
Connections appear to be tight and very clean

Looks are deceiving.

Take plugin connectors apart, drench them with contact cleaner and plug in several times while damp.

Disassemble bolt on connections, hit contact surfaces with wire brush and contact cleaner. Reassemble.

Rattler 07-14-2014 09:01 PM

Re: 2003 will not move
 
I have used it for two days has not stopped again

mgray70 07-14-2014 09:09 PM

Did you unplug and clean those connections or did it just go back to working on its own?

Rattler 07-15-2014 09:45 PM

Re: 2003 will not move
 
I checked connections but found nothing that looked bad so I don't know why it's working

mgray70 07-16-2014 05:49 AM

Sometimes just unplugging and plugging back in that 4 pin connector is just enough. Mine did the same thing about a month ago.

JohnnieB 07-16-2014 12:00 PM

Re: 2003 will not move
 
Quote:

Originally Posted by Rattler (Post 1052207)
I checked connections but found nothing that looked bad so I don't know why it's working

I say again: Looks are deceiving. :mrgreen:

There is a nearly invisible, non-conductive, corrosion that migrates between the contact surfaces of connections. Unplugging and replugging a connector will often scrape away enough of this corrosion for electrical contact to be reestablished, so the problem disappears until the corrosion grows between the contact surfaces again.

There are contact protective compounds available costing from hundreds of dollars an ounce down to less than $1 per cup. For golf cart applications, dielectric grease or Vaseline work pretty well on control wire connections.

The corrosion types that grow on battery terminals and other high current connections, are of both the visible and invisible varieties, and there are protectorates specially formulated for them, but Vaseline works also.

Bottom Line: Visual inspection is useful for spotting gross defects like broken or burnt wires, but just because something looks good, doesn't mean it is good. Learn to use a Voltmeter or Ammeter or Ohmmeter in addition to your eyes.

yurtle 07-16-2014 12:08 PM

Re: 2003 will not move
 
Since there are two circuits on this 4 wire plug, any one bad connection can keep it from running. If either of the MS wires are bad, the solenoid won't click. If either of the ITS wires are bad, the solenoid will click, but the controller won't know the position of the throttle, and will either act weird or not run at all, depending on whether you have a higher resistance connection, or none at all.

JohnnieB 07-16-2014 12:24 PM

Re: 2003 will not move
 
Oops - double post.

Rattler 07-17-2014 06:52 AM

Re: 2003 will not move
 
Thanks guys


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