|
Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
|
Thread Tools | Display Modes |
|
09-18-2017, 05:31 PM | #1 |
Not Yet Wild
Join Date: Sep 2013
Posts: 6
|
EZGO RXV electric brake problem
2008 RXV Electric with Danaher controller - Originally the resistor drain circuit was bad. I replaced it, and now a different (maybe related) problem has surfaced. The brake is dragging. I replaced the brake with the upgraded one. It still drags.
Voltage at the brake plug is 50.2 with the switch in N position and the run/tow in tow. Brake is released completely. Everything okay. In F or R, voltage at brake drops to 12.9 and the brake drags (I have the cart up on jack stands). I can't find any information on correct voltage. Is this correct. If not, what should it be? What components should I check/replace? Someone please help before I lose my sanity. Last edited by billmanley; 09-18-2017 at 05:32 PM.. Reason: misspelling |
09-18-2017, 06:16 PM | #2 | |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
|
Re: EZGO RXV electric brake problem
Quote:
There are a number of possibilities... 1. The FET (electronic switch) for the motor brake output could be failing. 2. Someone could have gone in with a programmer and set the Motor Brake PWM setting too low. 3. A bad connection in the wiring harness is causing excess resistance. 4. The Run Plug or Run Plug socket may have corrosion. |
|
09-18-2017, 10:53 PM | #3 | |
Not Yet Wild
Join Date: Sep 2013
Posts: 6
|
Re: EZGO RXV electric brake problem
Quote:
The voltage at the brake goes to 36V for an instant, when the accelerator is first pressed and then drops to 12V. There have been no programming changes. There is a relay in the circuit under the dash above the run plug socket. Could it cause the problem? If so, is there a way to test it? I can't find a part number for it in the service manual. |
|
09-18-2017, 06:22 PM | #4 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
|
Re: EZGO RXV electric brake problem
The Danaher Rxv does not like the HD motor brake in my experience.
|
09-18-2017, 07:14 PM | #5 |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
|
Re: EZGO RXV electric brake problem
I don't know the Danaher RXV well. I just figured it would be similar issues that the Curtis RXV has with motor brakes. Bill, cgtech knows those well and has a lot of experience with them.
|
09-18-2017, 10:55 PM | #6 |
Not Yet Wild
Join Date: Sep 2013
Posts: 6
|
Re: EZGO RXV electric brake problem
|
09-18-2017, 11:15 PM | #7 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
|
Re: EZGO RXV electric brake problem
Not a problem. Who installed brake? Was it installed per directions (none in box, directions on the site)?
|
09-18-2017, 11:27 PM | #8 |
Not Yet Wild
Join Date: Sep 2013
Posts: 6
|
Re: EZGO RXV electric brake problem
I have the maintenance manual and followed the instructions for removal and installation, including cleaning, placing the run switch in tow, replacing and torqueing the bolts.
|
09-19-2017, 01:37 AM | #9 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
|
Re: EZGO RXV electric brake problem
Hmm, so it should be installed correctly.
|
09-19-2017, 10:18 AM | #10 |
Not Yet Wild
Join Date: Sep 2013
Posts: 6
|
Re: EZGO RXV electric brake problem
The original brake had the same problem after I replaced the resistor drain circuit. The original problem was the resistor drain. The cart had stopped working after the resistor heated. When I disconnected the black wire from the drain circuit, the cart would work, so I replaced the drain circuit.
I did remove the Danaher controller and its cover to visually inspect it for heat damage. I didn't see any sign of damage and re-installed it. It's possible that the controller may have gone bad. However, I hate to replace it (it is rather expensive) if that is not the problem. I have considered buying the handheld diagnostic tool. There is no dealer/repair company that services RXV carts anywhere near us. Would the 606215 handheld tool help in diagnosing this problem? |
Tags |
rxv auto-brake problems |
|
Thread Tools | |
Display Modes | |
|
Similar Threads | ||||
Thread | Forum | |||
EzGo 2-Five parking brake problem | Electric EZGO | |||
1986 ezgo brake problem | Gas EZGO | |||
98 EZGO TXT brake lockup problem | Electric EZGO | |||
96 ezgo medalist brake problem? | Electric EZGO | |||
Ezgo Brake Problem | Gas EZGO |