48 Volt Ezgo TXT Problem

[randybw1]

Symptoms - Cart works just fine, goes forward and backwards, sometimes while going, the cart cuts off...After dragging it home, it will work again out of the blue. Sometimes you can drive all over the place with no issues and then other times, it won't begin to go. When it doesn't go, you can always hear the Controller click, I have seen nothing but green lights on the controller.

D&D 170-010-0002 Motor
AXE 4855 500 amp Controller with fuse
MZJ-400 Solenoid
3 amp Diode
220 or 470 ohm Pre-charge Resistor w/ 3/8" terminal
New Upgraded Forward/Reverse Switch

Followed the steps:

EZGO Diagnostic testing for Ezgo Solid State speed Control Systems

Testing of the EZGO ELECTRONIC SPEED CONTROL - SERIES & PDS (NON DCS)
ALWAYS DISCONNECT THE NEGATIVE BATTERY CABLE BEFORE REMOVING CONTROLLER COVER. RE-CONNECT CABLE AFTER COVER IS REMOVED.
These test are to be conducted after making sure all wires and connections are clean and tight.
PLACE THE REAR OF THE CART SECURELY ON BLOCKS OR JACK STANDS FOR SAFETY
Connect (-) probe of meter on Battery Pack Negative (-) post. (This probe will on the post for the rest of the testing procedures) Connect (+) probe to the Battery Pack Positive (+) battery post. (This reading is the Battery Voltage and the amount of POWER TO THE CONTROLLER -
NOW, Key switch ON, gear selector in FORWARD, Place the (+) probe on the battery side of the solenoid's large post (If the reading is below battery voltage, check all wiring and terminals).
Place the (+) probe to the controller side of the solenoid's large post. The reading should be 0.1 to 3 volts less than battery voltage. If the reading is more than 3 volts less the battery voltage, the resistor is faulty. If the voltage is the same as the battery voltage, replace the solenoid.

Battery pack reads 50.6
Battery side of Solenoid 50.6
Controller side of Solenoid, reads 37.6 Resistor is faulty...?

So I read a post that you don't have to have the resistor on...

http://www.buggiesgonewild.com/elect...-mounting.html

So I took the resistor off, and the reading is now - 5.6.

Help....

[cgtech]

if your precharge resistor is only bringing your voltage up to 37v and pack voltage is 50v you might have a controller problem (a capacitor inside may be going).

[randybw1]

Hmm, I took it apart, no working on that thing, guess I'm going to be out a controller now. Thanks for the reply.