2010 CC DS throwing main drop out fault

twilliams81 · 05-22-2019, 04:07 PM

and i've already replaced the solenoid. This is the first time I've not been able to clear this up with a solenoid replacement. I've heard there are diodes in the harness that go bad and may cause this issue? If so what is the fix? Eliminate the diode? Replace with another harness?

Sergio · 05-22-2019, 04:21 PM

If the diode has failed and it is shorted You will have the problem.

The diode was removed from the harness after changes made to the Controller for the 2011 DS model.

The diodes below work:

https://www.amazon.com/20-Pieces-10A...5CN/ref=sr_1_3

Follow the Blue wire from the Tow/Run switch and you will see the diode in the diagram below:

twilliams81 · 05-22-2019, 04:27 PM

With pack negative disconnected and the run/tow switch in the ON position And my probes on pack POSITIVE and the gray #9 wire this is the reading I’m getting

I get this same reading when I switch my leads also. Btw this cart WILL run about 10 ft before cutting off.

Sent from my iPhone using Tapatalk

Sergio · 05-22-2019, 04:32 PM

Yep, the diode has failed and when that happens the Controller gets a false error when switching from Regen that it gets interpreted as a main dropout.

Adding a diode or the Club Car "dropout harness" should fix the issue.

twilliams81 · 05-22-2019, 04:33 PM

10-4 thanks again Sergio!!

Sent from my iPhone using Tapatalk

twilliams81 · 05-22-2019, 04:38 PM

One problem is this is my run tow switch so not sure which is blue or where the diode is

Sent from my iPhone using Tapatalk

twilliams81 · 05-22-2019, 05:02 PM

Yeah I must have an odd model (my luck) because I don’t have a blue wire coming off the run tow/switch and don’t have a diode anywhere like in the diagram

Sent from my iPhone using Tapatalk

Sergio · 05-22-2019, 05:24 PM

That is OK, You do not have to remove the old diode, just install a new one anywhere in that pin #9 circuit.

Test the harness connector where that Tow/Run switch plugs into.

One wire will have +48v as it comes from the battery and the other one that goes towards the Controller pin #9 will have 0v.

The diode gets installed with the banded side towards the Controller pin #9.

You can also cut the gray wire and install the diode with the banded side towards the Controller pin #9.

I will look if I have a newer 2010 DS wiring diagram.

Sergio · 05-22-2019, 05:41 PM

I put this 2010-2011 DS wiring diagram together, perhaps it matches your wiring better.

You can see the diode is on the gray wire which is a better location as it only handles the Controller aux power which can be high during walk away brake.

twilliams81 · 05-22-2019, 05:43 PM

Good deal I’ll check it out first thing in the am!

Sent from my iPhone using Tapatalk

05-22-2019, 04:07 PM	#1
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612	2010 CC DS throwing main drop out fault and i've already replaced the solenoid. This is the first time I've not been able to clear this up with a solenoid replacement. I've heard there are diodes in the harness that go bad and may cause this issue? If so what is the fix? Eliminate the diode? Replace with another harness?
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612

05-22-2019, 04:21 PM	#2
Sergio Gone Wild Join Date: Sep 2012 Location: Charlotte, NC Posts: 9,329	Re: 2010 CC DS throwing main drop out fault If the diode has failed and it is shorted You will have the problem. The diode was removed from the harness after changes made to the Controller for the 2011 DS model. The diodes below work: https://www.amazon.com/20-Pieces-10A...5CN/ref=sr_1_3 Follow the Blue wire from the Tow/Run switch and you will see the diode in the diagram below:

05-22-2019, 04:27 PM	#3
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612	Re: 2010 CC DS throwing main drop out fault With pack negative disconnected and the run/tow switch in the ON position And my probes on pack POSITIVE and the gray #9 wire this is the reading I’m getting I get this same reading when I switch my leads also. Btw this cart WILL run about 10 ft before cutting off. Sent from my iPhone using Tapatalk
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612

05-22-2019, 04:32 PM	#4
Sergio Gone Wild Join Date: Sep 2012 Location: Charlotte, NC Posts: 9,329	Re: 2010 CC DS throwing main drop out fault Yep, the diode has failed and when that happens the Controller gets a false error when switching from Regen that it gets interpreted as a main dropout. Adding a diode or the Club Car "dropout harness" should fix the issue.

05-22-2019, 04:33 PM	#5
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612	Re: 2010 CC DS throwing main drop out fault 10-4 thanks again Sergio!! Sent from my iPhone using Tapatalk
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612

Today
BGW	Sponsored Links __________________ This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

05-22-2019, 04:38 PM	#6
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612	Re: 2010 CC DS throwing main drop out fault One problem is this is my run tow switch so not sure which is blue or where the diode is Sent from my iPhone using Tapatalk
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612

05-22-2019, 05:02 PM	#7
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612	Re: 2010 CC DS throwing main drop out fault Yeah I must have an odd model (my luck) because I don’t have a blue wire coming off the run tow/switch and don’t have a diode anywhere like in the diagram Sent from my iPhone using Tapatalk
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612

05-22-2019, 05:24 PM	#8
Sergio Gone Wild Join Date: Sep 2012 Location: Charlotte, NC Posts: 9,329	Re: 2010 CC DS throwing main drop out fault That is OK, You do not have to remove the old diode, just install a new one anywhere in that pin #9 circuit. Test the harness connector where that Tow/Run switch plugs into. One wire will have +48v as it comes from the battery and the other one that goes towards the Controller pin #9 will have 0v. The diode gets installed with the banded side towards the Controller pin #9. You can also cut the gray wire and install the diode with the banded side towards the Controller pin #9. I will look if I have a newer 2010 DS wiring diagram.

05-22-2019, 05:43 PM	#10
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612	Re: 2010 CC DS throwing main drop out fault Good deal I’ll check it out first thing in the am! Sent from my iPhone using Tapatalk
twilliams81 Gone Wild Join Date: Aug 2016 Posts: 612

Similar Threads
Thread	Forum
2004 CC Precedent “main driver OFF” fault...	Electric Club Car
CC Precedent throwing "main welded" code but cart still runs....	Electric Club Car
02 ds main dropout fault code	Electric Club Car
Clubcar main drop out fault code	Lifted Golf Carts
E-Z-GO MPT 1000 5-2 main contact open fault in reverse only.	Electric EZGO