Ezgo RXV will not run

Bray6092 · 03-26-2017, 10:02 PM

It look like there was only one way it would fit.

BobBoyce · 03-26-2017, 10:11 PM

Quote:

Originally Posted by Bray6092

It only went up to 1.6

Ok, we need to find out in which circuit the problem is. The + or the -.

First, insert the red voltmeter probe into the white wire socket of the motor brake plug and put the black voltmeter probe on the battery pack negative terminal, turn keyswitch on and toggle the run/tow switch and see if you read pack voltage in tow mode.

Bray6092 · 03-26-2017, 10:22 PM

Okay I got 46 volts brake to negative battery abs then 1.6 brake to positive battery

I them check battery pack again and it was below 48. All batteries above 12 beside one which was at 5.5 So I'm thinking this battery needs to be replaced

BobBoyce · 03-26-2017, 10:26 PM

Quote:

Originally Posted by Bray6092

Okay I got 46 volts brake to negative battery abs then 1.6 brake to positive battery

I them check battery pack again and it was below 48. All batteries above 12 beside one which was at 5.5 So I'm thinking this battery needs to be replaced

Yuppirs, good reason for the brake not to disengage. The negative side is switched by the controller, even in tow mode. The run/tow switch applies pack + to controller pin 13, which tells the controller to activate the motor brake FET, which takes controller pin 2 to pack -. This is why the key has to be on when using the run/tow switch to release the motor brake.

Bray6092 · 03-26-2017, 10:58 PM

So new battery should fix it?

cgtech · 03-26-2017, 11:13 PM

Can't diag very much at all on a Rxv with a battery sitting at 5v.

Bray6092 · 03-27-2017, 06:51 PM

I should have new batteries tomorrow.

BobBoyce · 03-27-2017, 09:26 PM

Quote:

Originally Posted by Bray6092

I should have new batteries tomorrow.

Sounds good. I'm in the hospital tonight, had a minor stroke today. I should be out tomorrow sometime if all goes well.

Bob

Bray6092 · 03-28-2017, 09:24 PM

Hate to hear that. Hope your okay. I put new batteries on and did the brake motor plug. To the negative and to brake motor I got 50.5 but positive battery to brake motor I got 3.3

03-26-2017, 10:02 PM	#21
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461	Re: Ezgo RXV will not run It look like there was only one way it would fit.
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461

03-26-2017, 10:22 PM	#23
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461	Re: Ezgo RXV will not run Okay I got 46 volts brake to negative battery abs then 1.6 brake to positive battery I them check battery pack again and it was below 48. All batteries above 12 beside one which was at 5.5 So I'm thinking this battery needs to be replaced
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461

03-26-2017, 10:58 PM	#25
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461	Re: Ezgo RXV will not run So new battery should fix it?
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461

03-26-2017, 11:13 PM	#26
cgtech Over This Interview Is... Join Date: Jun 2012 Location: AZ Posts: 17,449	Re: Ezgo RXV will not run Can't diag very much at all on a Rxv with a battery sitting at 5v.

03-27-2017, 06:51 PM	#27
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461	Re: Ezgo RXV will not run I should have new batteries tomorrow.
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461

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03-28-2017, 09:24 PM	#29
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461	Re: Ezgo RXV will not run Hate to hear that. Hope your okay. I put new batteries on and did the brake motor plug. To the negative and to brake motor I got 50.5 but positive battery to brake motor I got 3.3
Bray6092 Gone Wild Join Date: Apr 2015 Posts: 461