EZGO TXT 1999- no power to motor

RandyGriggs · 09-27-2018, 02:47 PM

We have put in the new controller. When we tried to turn the golf cart on and ride it would barely move. It sounded as if the motor was making a humming noise. We have checked power to all pins and have the correct voltage except for pin 5. It said we should have pack voltage and it was only 4.7. We checked the pedal switch and everything seemed to be in its correct place and no wire corrosion. Any ideas?

biphase · 09-27-2018, 05:00 PM

You must have 36 volts on pin 5 when you step on the pedal. If it is not there, the solenoid will not engage.

RandyGriggs · 09-27-2018, 05:02 PM

When we put in forward and pressed foot pedal, we were only getting 27 volts. The solenoid clicks, but cat barely moves.

biphase · 09-27-2018, 05:37 PM

You were getting 27 volts where? On pin 5?

Try measuring the voltage directly across the B+ and B- blades on the controller while the cart is moving.

RandyGriggs · 09-28-2018, 11:53 AM

35 volts while moving. 27 was with pedal pressed and in forward. (Before we charged)

RandyGriggs · 09-28-2018, 12:36 PM

When we drove a little farther though, it went down to 17.5 volts. There is two brand new batteries with the other four being older batteries. Could the older batteries be an issue?

biphase · 09-28-2018, 02:14 PM

Any battery could be bad. Try measuring each battery , one at a time, while you are driving the cart. Any battery that drops substantially under load should be replaced.

RandyGriggs · 09-28-2018, 04:23 PM

One immediately dropped to 4, the rest stayed at or around 6.

yurtle · 09-28-2018, 04:43 PM

There's your culprit. Try and find a used battery, about the same age and amp-hrs as the rest.

09-27-2018, 02:47 PM	#31
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29	Re: EZGO TXT 1999- no power to motor We have put in the new controller. When we tried to turn the golf cart on and ride it would barely move. It sounded as if the motor was making a humming noise. We have checked power to all pins and have the correct voltage except for pin 5. It said we should have pack voltage and it was only 4.7. We checked the pedal switch and everything seemed to be in its correct place and no wire corrosion. Any ideas?
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29

09-27-2018, 05:00 PM	#32
biphase Gone Wild Join Date: Jan 2009 Location: Ocala, FL Posts: 384	Re: EZGO TXT 1999- no power to motor You must have 36 volts on pin 5 when you step on the pedal. If it is not there, the solenoid will not engage.

09-27-2018, 05:02 PM	#33
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29	Re: EZGO TXT 1999- no power to motor When we put in forward and pressed foot pedal, we were only getting 27 volts. The solenoid clicks, but cat barely moves.
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29

09-27-2018, 05:37 PM	#34
biphase Gone Wild Join Date: Jan 2009 Location: Ocala, FL Posts: 384	Re: EZGO TXT 1999- no power to motor You were getting 27 volts where? On pin 5? Try measuring the voltage directly across the B+ and B- blades on the controller while the cart is moving.

09-28-2018, 11:53 AM	#35
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29	Re: EZGO TXT 1999- no power to motor 35 volts while moving. 27 was with pedal pressed and in forward. (Before we charged)
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29

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09-28-2018, 12:36 PM	#36
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29	Re: EZGO TXT 1999- no power to motor When we drove a little farther though, it went down to 17.5 volts. There is two brand new batteries with the other four being older batteries. Could the older batteries be an issue?
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29

09-28-2018, 02:14 PM	#37
biphase Gone Wild Join Date: Jan 2009 Location: Ocala, FL Posts: 384	Re: EZGO TXT 1999- no power to motor Any battery could be bad. Try measuring each battery , one at a time, while you are driving the cart. Any battery that drops substantially under load should be replaced.

09-28-2018, 04:23 PM	#38
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29	Re: EZGO TXT 1999- no power to motor One immediately dropped to 4, the rest stayed at or around 6.
RandyGriggs Not Yet Wild Join Date: Sep 2018 Posts: 29

09-28-2018, 04:43 PM	#39
yurtle Gone Mad Join Date: Oct 2009 Location: Buford, GA Posts: 8,988	Re: EZGO TXT 1999- no power to motor There's your culprit. Try and find a used battery, about the same age and amp-hrs as the rest.

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