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Old 04-02-2020, 06:25 PM   #1
jamhexx
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Default Looking for help with speed controller 5 pin connection

I was gifted an Ezgo TXT 36 volt golf cart from a family member.

The alltrax speed controller was bad. I purchased a EZGO 1994-UP SERIES CONTROLLER (350 AMP 36 VOLT) for a replacement. The Alltrax had tab connectors and the new controller has a 5 pin connector. Does anyone know where I can locate the 5 pin connector and the order of the wiring? I'v searched for days and can find no info.

I also purchased a new solenoid, diode and resistor.
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Old 04-02-2020, 07:26 PM   #2
mgray70
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Default Re: Looking for help with speed controller 5 pin connection

I've cut dozens off and thrown them in the trash for Alltrax replacements. Maybe I should save them. Could be a market.
Most people never go back to Curtis. If so you should have went with the 1204 with standard spade pins. If I do another one soon I'll look you up.

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Old 04-02-2020, 08:22 PM   #3
handtools
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Default Re: Looking for help with speed controller 5 pin connection

I had the same issue once and ended up having to buy a new wiring harness. I believe this is the one you would need. EZGO 73040G01 Wire Harness. If you have a cart repair shop near by you could see if they have one they cut off.

controller wiring harness.jpg
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Old 04-02-2020, 09:02 PM   #4
jamhexx
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Default Re: Looking for help with speed controller 5 pin connection

Quote:
Originally Posted by mgray70 View Post
I've cut dozens off and thrown them in the trash for Alltrax replacements. Maybe I should save them. Could be a market.
Most people never go back to Curtis. If so you should have went with the 1204 with standard spade pins. If I do another one soon I'll look you up.

Sent from my SM-G970U using Tapatalk
This is all new to me, so I tried to go with a stock replacement. I will learn, i'm sure. Thanks for the response.
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Old 04-02-2020, 09:03 PM   #5
jamhexx
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Default Re: Looking for help with speed controller 5 pin connection

Quote:
Originally Posted by handtools View Post
I had the same issue once and ended up having to buy a new wiring harness. I believe this is the one you would need. EZGO 73040G01 Wire Harness. If you have a cart repair shop near by you could see if they have one they cut off.

Attachment 199590
Thanks for the info.
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Old 04-02-2020, 09:18 PM   #6
jamhexx
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Default Re: Looking for help with speed controller 5 pin connection

Sorry, I have one more question. Behind the plug on the cart for the battery charger there is small white wire in addition to the two large wires that charge the battery, it's cut and is just hanging there. Any clue where this wire should go?

I believe its called a reed switch.
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Old 04-03-2020, 05:41 AM   #7
mgray70
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Default Re: Looking for help with speed controller 5 pin connection

Quote:
Originally Posted by jamhexx View Post
Sorry, I have one more question. Behind the plug on the cart for the battery charger there is small white wire in addition to the two large wires that charge the battery, it's cut and is just hanging there. Any clue where this wire should go?



I believe its called a reed switch.
Reed switch. It has probably already been bypassed.

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Old 04-03-2020, 07:07 AM   #8
handtools
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Default Re: Looking for help with speed controller 5 pin connection

Here is the reed switch bypass.

Ezgo Reed Switch bypass.jpg
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Old 04-07-2020, 05:09 PM   #9
jamhexx
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Default Re: Looking for help with speed controller 5 pin connection

I installed the new wiring harness. The solenoid won't click unless I jump it. The cart then runs. Any ideas what may be wrong?
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Old 04-07-2020, 07:08 PM   #10
JohnnieB
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Default Re: Looking for help with speed controller 5 pin connection

The battery voltage that energizes the solenoid coil starts at the reed switch in the upper left of the attached schematic. Check he red highlighted wiring for voltage at various point until you find it.
Attached Images
File Type: jpg Wiring Diagram - Series with KSI traced.JPG (58.9 KB, 0 views)
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