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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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07-10-2019, 10:12 PM | #1 |
Resident Curmudgeon
Join Date: Oct 2011
Posts: 1,279
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Funny results of customer attempted repairs on RXV
They're going to have to have everything replaced. I've never seen results as hilarious as the RXV I worked with today!
They installed a custom voltmeter, radio with satellite antenna, light kit and turn signal kit. Blew every fuse on car, came in dead as in zero volts. Boosted the pack which tests ok now, so first task was assess and diagnosis. I was going to start by disconnecting main power and then their many accessories and attempt to find the short. Figured getting car running was top priority. Well here's the fun part. With B+ and B- disconnected, I start undoing their negative connection to their headlights (which were hooked to the front middle battery. What happens is with negative headlight wire Off the terminal, the controller Powers up and does the twist test! With the B+ and - connection disconnected! How? Pulling headlight knob also turns everything on. Of course cart won't run. The handheld works, shows quite a few bad ones like EM Brake Driver OC and Controller Overcurrent as active errors. Not history. I figure they hacked into the harness. This is why customers even those who worked in TV repair shouldn't work on golf cars. But I'm still wondering how on Earth the cart powered up with B- and + disconnected and just pulling the headlight switch on. It was in tow mode too. They obviously need a controller and harness. Codes: Main contactor did not close EM brake driver OC Precharge failed Throttle wiper EM brake field missing Controller Overcurrent Under inputs I have Key off Foot input on and throttle 100% (no foot on pedal at all) Forward off Brake microswitch on SOC 99% |
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07-10-2019, 11:38 PM | #2 |
Gone Wild
Join Date: Apr 2019
Location: Canada
Posts: 425
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Re: Funny results of customer attempted repairs on RXV
The what error don't you have on that cart?! Yikes.
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07-11-2019, 04:49 PM | #3 |
Resident Curmudgeon
Join Date: Oct 2011
Posts: 1,279
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Re: Funny results of customer attempted repairs on RXV
You have to turn the car on with the headlight switch (or use left turn signal!)
These kinds of results are common when someone tries to hack accessories into the key switch wires and failed to put car into TOW. but one should never hack into the main wiring harness of an RXV |
07-11-2019, 07:39 PM | #4 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: Funny results of customer attempted repairs on RXV
Same thing when I see high amp draw accessories (like a heater, or winch) on one 12v battery of a 4x 12v rxv. That's nothing but trouble.
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