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Unread 09-15-2013, 01:13 PM   #331
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Default Re: RXV Auto-Brake Problem III

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Originally Posted by emac View Post
Just finished reading this entire thread. Thank you to all that have posted. Especially cartboy. Wow, you ave become closer to the rxv than most people get to their spouses!

My 2008 rxv quit the other day. Just stopped and locked up. Reverse buzzer works, battery gauge light comes on but reads empty. When I turn the key, I don't hear any clicking at all. Lights and horn work. Batteries are charged and cables are clean. I have voltage at the solenoild.and in various other places. I really don't know how to troubleshoot the electrical without a diagram or service manual. Fuses are good.

A couple of years ago I had to replace the electric brake when my son towed it home with the brake on. So, I think the brake itself is in good order. I took it off and it appears normal.

I ordered a new solenoid, as that appears to be a common problem, according to this thread. I don't recall reading anything about the battery gauge not working, so I am a bit concerned my problem may be elsewhere.

I really like these carts and mine has worked pretty well. So long as I keep the kids away from it! We have another hopped up lifted cart we/they use for hunting, etc. The rxv is for me to get around on the pavement.

Any thoughts would be appreciated. Thanks.
"Locked up" is what happens when the solenoid fails. The only way you can move it is to take the seat off and use the brake release lever by reaching down and through about where the driver would sit.

Post how much fun that is.

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Unread 09-15-2013, 04:39 PM   #332
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Default Re: RXV Auto-Brake Problem III

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Originally Posted by cartboy View Post
This, almost exactly, happened today. I had identified two bad batteries, in separate carts. The factory tech was here today and confirmed it. He said almost what you said, that if it discharges to 10.5 in 55 minutes, it's bad.

I called them bad because they discharged to 6.3 volts during a round of golf.

So, my way caught the bad ones and his way confirmed it.

Works for me.
I am finding that if I rely on fully charged readings or discharged readings, I can cull out the bad batteries.

One cart that has died several times on the course read 12.1 on one battery on a full charge. Since the factory tech said he does not care about that reading, I put it back in service. I put it out the first thing in the mrning, so it would be the first one in.

It came in limping. I took a reading and the "bad battery" was 10.24. I let it settle back up a couple hours and it was 10.7.

I took it ou of service, but charged it overnight. I used it to do two short marshal rounds and it limped back in. Under 10.5 again.

So, the bad fully charged readings identify batteries that discharge below the 10.5 level the Tech requires.
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Unread 09-16-2013, 09:58 PM   #333
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Default Re: RXV Auto-Brake Problem III

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Originally Posted by cartboy View Post
"Locked up" is what happens when the solenoid fails. The only way you can move it is to take the seat off and use the brake release lever by reaching down and through about where the driver would sit.

Post how much fun that is.

Not much fun! Going to use the 2x4 trick to load it on a trailer. Right now it is on two wheel dollies to push around the shop. Thanks for the reply, cart boy.

Unfortunately, the new solenoid didn't fix the problem. I had a gut feeling it wouldn't. The gauge is showing dead batteries, but I charged them and all are around 15 +volts. I am getting close to 60 volts at the solenoid, battery side, and Zero on the controller side. Switching the key on gives good voltage to both small terminals on the solenoid, but still zero to the controller. The batteries are original 2008 Trojans. Maybe they are just bad. I didn't load test them, I just used a voltmeter. Can they show good voltage, and not be good enough to start the cart?

I think I might bring it to a local guy that has one of those ezgo diagnostic tools for the rxv and see if it has any codes. He has sold a few rxv's so maybe he can figure it out. Any thoughts?

Thanks!
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Unread 09-17-2013, 08:03 PM   #334
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Default

I am thinking about getting a 2009 rxv. Would anyone recommend it?
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Unread 09-18-2013, 01:17 PM   #335
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Default Re: RXV Auto-Brake Problem III

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Originally Posted by suffolklou View Post
I am thinking about getting a 2009 rxv. Would anyone recommend it?
At this point in this thread, that's pretty funny.

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Unread 09-18-2013, 01:25 PM   #336
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Default Re: RXV Auto-Brake Problem III

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Originally Posted by cartboy View Post
I have been self-educating via the Internet on deep cycle battery technology for about five years, since I set up a solar electric system for our boat dock.

I know I'm at a roadblock now with our factory tech, and Im hoping someone viewing can help me.

What I want to know is how voltage readings on a full charge affect both remaining useful life and what a battery can do on each charge (how many holes/rounds of golf).

Common sense tells me that four batteries reading 12.8 volts at full charge are better than four batteries reading 12.1.

Anyone?
To be more specific about the conflicting information I found, the following is what 8 different deep cycle battery sources say a fully-charged 12 volt reading means. It reminds me of the saying, "If you can't dazzle them with brilliance, baffle them with --------!"

(in no particular order)

"Done"
"Almost Fully Depleted"
25%
20%
50%
25%
45%
45%

They can't all be right!

FWIW, I had a similar informational thread going on the Talk of the Villages, the online forum for the Villages in Florida. I was posting this info there because golf carts are a big deal there.

That thead got closed. Any idea why a forum would close a thread like this?
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Unread 09-19-2013, 05:08 PM   #337
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Default Re: RXV Auto-Brake Problem III

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Originally Posted by cartboy View Post
FWIW, I had a similar informational thread going on the Talk of the Villages, the online forum for the Villages in Florida. I was posting this info there because golf carts are a big deal there.

That thead got closed. Any idea why a forum would close a thread like this?
It appears they thought I am a battery or golf cart dealer.

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Unread 09-19-2013, 05:13 PM   #338
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Default Re: RXV Auto-Brake Problem III

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Originally Posted by cartboy View Post
The failing autofills are an issue on the back burner now. It does not even come up with our factory tech.

The truth of it is that there does not appear to be a correlation between low voltage readings, failed autofills, corroded terminals, or which battery. It seems to be random.
I don't mind admitting when I'm wrong, and I have no idea why I said what I said here.

I am keeping a running tally of the carts that the autofill does not work on, that cells overfill. Three of the four carts that had all four batteries replaced because they are overheating when charging are repeat offenders on my autofill list.

Another cart, the most frequent offender, is also charging hot and smelly. I just haven't been at the right place at the right time to use the lazer thermometer on the batteries.
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Unread 09-19-2013, 07:48 PM   #339
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Default Re: RXV Auto-Brake Problem III

Here is a easy test for the "locked up", "no click", "battery meter empty" trio. I have seen a dc bus low code, the "resistor control module" can cause this. Here is a easy test, disconnect the small black wire that is paired with the pack negative cable on the controller. Try the cart with the small wire connected to nothing. If the cart runs now, the "resistor control module" is bad.
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Unread 09-20-2013, 02:50 PM   #340
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Default Re: RXV Auto-Brake Problem III

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Originally Posted by cartboy View Post
FWIW, I had a similar informational thread going on the Talk of the Villages, the online forum for the Villages in Florida. I was posting this info there because golf carts are a big deal there.

That thead got closed. Any idea why a forum would close a thread like this?
Here's their answer:

The moderators flagged this as the activity is unusual. User don't typically dig up a thread 2 years old and keep posting short burst on it to keep it running for 2 months. We have a section 'Golf Cart Expert' and we have someone who offers this kind of free advice but kind regards.
- - - - -
Relating to the Flowrite battery autofill system in my last post, the E Z Go tech was here today and gave me instructions on how to keep them working.

Anyone wanna know what he said?
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