Alltrax error - cart down

xcntrk · 08-13-2017, 07:37 PM

Hey all, looking for a little help diagnosing an Alltrax controller error. Got a Yamaha G29, Alltrax XCT-500, 400-amp SD solenoid, HD cables, 6x8v Trojans. Everything's been working great until recently. Cart was running fine, parked it in the garage, went to drive it a week later and nothing, zero power. Cart takes a full charge and the batteries are reporting healthy voltage. After some troubleshooting I found a fuse was blown, a 10-amp on a factory circuit that runs from the solenoid to the tow/run switch. I replaced the fuse and power restored, however the controller is now giving me error codes and the cart won't move. 1 green with 6 red, which equates to "Pre-Charge Failure". I was looking in the manual and it says that the XCT doesn't use a pre-charge resistor, nor do I have one on the solenoid. I do have the diode that came with the kit. The contactor isn’t doing anything, no click, F/R does nothing.

I took some voltage readings to see if they revealed anything:
Batteries: 51.6v
Contactor Large terminal – battery side: 51.6v
Contactor small terminal – battery side: 51.2v (less voltage from the diode?)
Contactor Large terminal – controller side: 0v
Contactor small terminal – controller side: 51.6v

Not sure what to try next, any thoughts or input is welcomed!

scottyb · 08-13-2017, 08:10 PM

Pre-charge failure on an XCT is sort of a code red since it uses no pre-charge resistor and the pre-charge is internal.
Take 2 aspirin & call Alltrax in the morning 541-476-3565

xcntrk · 08-15-2017, 04:54 PM

I did some troubleshooting with Alltrax tech support. We concluded the controller is getting the expected input voltage from the cart's harness which seems to imply everything cart side is ok. I had to pull the controller and send it in for diagnostics and (assuming) warranty repair. So much for using my cart the rest of this month.

LPnTX · 08-17-2017, 01:52 PM

I had a faulty XCT300. I sent it in and had a new one returned to me in 3 days.

xcntrk · 08-17-2017, 03:11 PM

^Wow! I hope I get that kind of service. Granted this XCT-500 worked fine for the past 1.5 years, then just like that, total failure. Thank goodness for 2-year warranty!

scottyb · 08-17-2017, 03:26 PM

Alltrax is very good about their warranty

08-13-2017, 07:37 PM	#1
xcntrk Not Yet Wild Join Date: Mar 2016 Posts: 49	Alltrax error - cart down Hey all, looking for a little help diagnosing an Alltrax controller error. Got a Yamaha G29, Alltrax XCT-500, 400-amp SD solenoid, HD cables, 6x8v Trojans. Everything's been working great until recently. Cart was running fine, parked it in the garage, went to drive it a week later and nothing, zero power. Cart takes a full charge and the batteries are reporting healthy voltage. After some troubleshooting I found a fuse was blown, a 10-amp on a factory circuit that runs from the solenoid to the tow/run switch. I replaced the fuse and power restored, however the controller is now giving me error codes and the cart won't move. 1 green with 6 red, which equates to "Pre-Charge Failure". I was looking in the manual and it says that the XCT doesn't use a pre-charge resistor, nor do I have one on the solenoid. I do have the diode that came with the kit. The contactor isn’t doing anything, no click, F/R does nothing. I took some voltage readings to see if they revealed anything: Batteries: 51.6v Contactor Large terminal – battery side: 51.6v Contactor small terminal – battery side: 51.2v (less voltage from the diode?) Contactor Large terminal – controller side: 0v Contactor small terminal – controller side: 51.6v Not sure what to try next, any thoughts or input is welcomed!
xcntrk Not Yet Wild Join Date: Mar 2016 Posts: 49

08-13-2017, 08:10 PM	#2
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,417	Re: Alltrax error - cart down Pre-charge failure on an XCT is sort of a code red since it uses no pre-charge resistor and the pre-charge is internal. Take 2 aspirin & call Alltrax in the morning 541-476-3565

08-15-2017, 04:54 PM	#3
xcntrk Not Yet Wild Join Date: Mar 2016 Posts: 49	Re: Alltrax error - cart down I did some troubleshooting with Alltrax tech support. We concluded the controller is getting the expected input voltage from the cart's harness which seems to imply everything cart side is ok. I had to pull the controller and send it in for diagnostics and (assuming) warranty repair. So much for using my cart the rest of this month.
xcntrk Not Yet Wild Join Date: Mar 2016 Posts: 49

08-17-2017, 01:52 PM	#4
LPnTX Gone Wild Join Date: Oct 2014 Posts: 173	Re: Alltrax error - cart down I had a faulty XCT300. I sent it in and had a new one returned to me in 3 days.
LPnTX Gone Wild Join Date: Oct 2014 Posts: 173

08-17-2017, 03:11 PM	#5
xcntrk Not Yet Wild Join Date: Mar 2016 Posts: 49	Re: Alltrax error - cart down ^Wow! I hope I get that kind of service. Granted this XCT-500 worked fine for the past 1.5 years, then just like that, total failure. Thank goodness for 2-year warranty!
xcntrk Not Yet Wild Join Date: Mar 2016 Posts: 49

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08-17-2017, 03:26 PM	#6
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,417	Re: Alltrax error - cart down Alltrax is very good about their warranty

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