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Old 11-04-2016, 07:28 PM   #1
bodick
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Default Ez go rxv brake locked

I am having a problem with my 2013 rxv. As with many on here, my cart will not move, my buzzer sounds when in reverse and i get clicking in both run and tow mode. It still will not move. I used the instructions on the bottom of the controller to manually disengage the braking system and it still won't move. Has anybody had this problem that could help me trouble shoot the issue. Thanks for any help...
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Old 11-05-2016, 03:49 AM   #2
BobBoyce
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Default Re: Ez go rxv brake locked

Quote:
Originally Posted by bodick View Post
I am having a problem with my 2013 rxv. As with many on here, my cart will not move, my buzzer sounds when in reverse and i get clicking in both run and tow mode. It still will not move. I used the instructions on the bottom of the controller to manually disengage the braking system and it still won't move. Has anybody had this problem that could help me trouble shoot the issue. Thanks for any help...
Welcome to the forum, and welcome to the most common problem that plagues the RXV.

On of the first things to check on the RXV is the battery pack voltage. Are the batteries fully charged? The RXV controllers are very finicky about proper voltage. To properly test some things, you will need a multimeter. One with a digital readout is preferred.

If the brake does not disengage when you follow the Emergency Tow Mode by swapping plugs under the controller cover, then it would seem that either you do not have voltage at those connections, or the motor brake itself is bad. The first thing to check after confirming that the batteries are properly charged would be to check the blade fuses under the caps attached to the controller cover. 2013 RXVs should have 2 fuseholders there, one with 2 red wires and the other with 2 yellow wires. If either of those are blown, replace with a new fuse of the same value. If all is good at this point, it's time to test the motor brake.

Unplug the 2 pin connector at the motor brake. It is located at the top of the rear end of the motor. You hold the retaining clip of the harness plug slightly away from the socket and pull upon the plug. It has a weather seal, so it will be a bit firm. Once this is done, try activating Emergency Tow Mode again and check with your meter to confirm that you have batter pack voltage at the 2 pins of that motor brake plug.

If you have pack voltage there, then it's possible that the motor brake itself is faulty. You would use a low ohms range on your multimeter to check the motor brake coil by putting the meter probes in contact with the 2 pins of the motor brake socket. You should read between 25 to 28 ohms. If it is open circuit or shorted, replace the motor brake unit. You can find them listed on eBay for much less than from E-Z-GO. It's a good idea for all RXV owners to keep a known good motor brake on hand for that time that it will fail.

If you have no pack voltage there, then you'll need to trace back through the Run Plug (9 pin connector under the bottom of the cupholder assembly), the Brake Switch (under the floor mat and pedal cover), and the wiring in between the battery pack and the motor brake plug itself.

RXVs are notorious for having bad connections in the harness, at the places where wires are bonded together, and at the terminals of plugs and sockets.

At this stage, you would probably need to obtain the wiring diagram. We can help if you need further assistance. Where are you located?

Bob
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Old 11-05-2016, 12:29 PM   #3
bodick
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Default Re: Ez go rxv brake locked

I've checked the battery pack and have over 50 volts there, i've also checked the fuses. I'll check all of the connections that you mentioned and report back. Thanks for the response. Located in Arkansas.
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Old 11-05-2016, 10:51 PM   #4
FluxCapacitor
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Default Re: Ez go rxv brake locked

Quote:
Originally Posted by BobBoyce View Post
Welcome to the forum, and welcome to the most common problem that plagues the RXV.

On of the first things to check on the RXV is the battery pack voltage. Are the batteries fully charged? The RXV controllers are very finicky about proper voltage. To properly test some things, you will need a multimeter. One with a digital readout is preferred.

If the brake does not disengage when you follow the Emergency Tow Mode by swapping plugs under the controller cover, then it would seem that either you do not have voltage at those connections, or the motor brake itself is bad. The first thing to check after confirming that the batteries are properly charged would be to check the blade fuses under the caps attached to the controller cover. 2013 RXVs should have 2 fuseholders there, one with 2 red wires and the other with 2 yellow wires. If either of those are blown, replace with a new fuse of the same value. If all is good at this point, it's time to test the motor brake.

Unplug the 2 pin connector at the motor brake. It is located at the top of the rear end of the motor. You hold the retaining clip of the harness plug slightly away from the socket and pull upon the plug. It has a weather seal, so it will be a bit firm. Once this is done, try activating Emergency Tow Mode again and check with your meter to confirm that you have batter pack voltage at the 2 pins of that motor brake plug.

If you have pack voltage there, then it's possible that the motor brake itself is faulty. You would use a low ohms range on your multimeter to check the motor brake coil by putting the meter probes in contact with the 2 pins of the motor brake socket. You should read between 25 to 28 ohms. If it is open circuit or shorted, replace the motor brake unit. You can find them listed on eBay for much less than from E-Z-GO. It's a good idea for all RXV owners to keep a known good motor brake on hand for that time that it will fail.

If you have no pack voltage there, then you'll need to trace back through the Run Plug (9 pin connector under the bottom of the cupholder assembly), the Brake Switch (under the floor mat and pedal cover), and the wiring in between the battery pack and the motor brake plug itself.

RXVs are notorious for having bad connections in the harness, at the places where wires are bonded together, and at the terminals of plugs and sockets.

At this stage, you would probably need to obtain the wiring diagram. We can help if you need further assistance. Where are you located?

Bob
Admins should consider making this a sticky! Seems like well explained and often needed advise.
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Old 11-06-2016, 02:21 AM   #5
BobBoyce
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Default Re: Ez go rxv brake locked

Quote:
Originally Posted by bodick View Post
I've checked the battery pack and have over 50 volts there, i've also checked the fuses. I'll check all of the connections that you mentioned and report back. Thanks for the response. Located in Arkansas.
Ok, let us know what you find. I get out to Arkansas a couple of times a year. I'm in central NC currently, should be home by next weekend. If you still have trouble, use of a diagnostic handset can help identify which circuit is affected. The codes stored will give a good indication.

Bob
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Old 11-07-2016, 08:53 PM   #6
bodick
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Default Re: Ez go rxv brake locked

Tested the 2 pin connector for voltage and it was getting over 49 volts. I tried to test the socket for ohms and could never get a good reading. I went ahead and ordered a new motor brake today and will follow up once installed and hopefully my cart is back up and running.
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Old 11-07-2016, 09:41 PM   #7
BobBoyce
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Default Re: Ez go rxv brake locked

Quote:
Originally Posted by bodick View Post
Tested the 2 pin connector for voltage and it was getting over 49 volts. I tried to test the socket for ohms and could never get a good reading. I went ahead and ordered a new motor brake today and will follow up once installed and hopefully my cart is back up and running.
Ok, good to hear. Those motor brakes are notorious for failure. If the new motor brake fixes the issue, you might want to order a spare new one to keep on hand. I found a new motor brake coil on eBay once froma seller in China. China is not known for quality, but I was willing to try it for the price. Very rare to find just the coil like that. I used it to repair a motor brake with a defective coil and it worked fine. I still ordered a spare new motor brake for when that chinese coil fails

Bob
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Old 11-13-2016, 07:53 PM   #8
bodick
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Default Re: Ez go rxv brake locked

Finally got the time to install the brake motor today. My cart is back up and running. I didn't run it long as I didn't have a torque wrench to tighten the bolts to the right spec. I tightened them snug but didn't go any furthur. Any advice on tightening the bolts without a torque wrench is appreciated.
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Old 11-14-2016, 01:02 AM   #9
cgtech
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Default Re: Ez go rxv brake locked

Tighten just until the lock washers are fully compressed, not much more.
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Old 11-14-2016, 03:56 AM   #10
BobBoyce
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Default Re: Ez go rxv brake locked

Quote:
Originally Posted by bodick View Post
Finally got the time to install the brake motor today. My cart is back up and running. I didn't run it long as I didn't have a torque wrench to tighten the bolts to the right spec. I tightened them snug but didn't go any furthur. Any advice on tightening the bolts without a torque wrench is appreciated.
Good to hear that your issue is now resolved. I agree with cgtech on being careful about overtorque on the motor brake bolts. That can cause premature motor brake failure. I suggest that you order a spare motor brake for future use, so if and when it fails again you'll have another one to swap out. That way you'll not have to wait on shipping again before testing.

Bob
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