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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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Thread Tools | Display Modes |
07-03-2020, 12:32 PM | #1 |
Not Yet Wild
Join Date: Nov 2019
Posts: 11
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Ez go won't move
I have an ez go 36 volt series drive cart. (year unknown) it has the Curtis 1206 controller. I'm trying to wire the cart back up and seems like I'm doing something wrong. With the key switch off I'm getting. Voltage on all high output terminals except b-
Even s1 s2 a1 a2 have pack voltage with the key off and pedal depressed. Solenoid clicks when pedal is pressed and cart does not move. Any help is appreciated. I have the wiring schematic for the series drive txt model too |
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07-03-2020, 01:34 PM | #2 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Ez go won't move
What are you referencing your DVM to?
Unless otherwise stipulated, the DVM's negative test lead ought to be connected to the battery pack's main negative terminal. |
07-03-2020, 04:32 PM | #3 |
Not Yet Wild
Join Date: Nov 2019
Posts: 11
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Re: Ez go won't move
Dvm referenced to current pack voltage and all my test for voltage test are done with negative lead hooked to negative on pack
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07-03-2020, 06:17 PM | #4 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Ez go won't move
If the keyswitch is not ON, the solenoid should not click when pedal is pressed.
The attached schematic has the solenoid activation circuit highlighted. ----------- With the negative test lead on battery B-, you will measure very near pack voltage on the motor studs if the F/R switch is in either F or R. ----------- with direction selected and key on, connect the DVM's negative test lead to the controller's B- terminal and the positive test lead to the M- terminal. You should red a few volts lees than pack voltage. Press pedal just far enough to make solenoid click and you should read full battery pack voltage. Press pedal to floor and voltage should decrease to zero. If it doesn't either motor, controller or throttle is bad. |
07-03-2020, 06:42 PM | #5 |
Not Yet Wild
Join Date: Nov 2019
Posts: 11
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Re: Ez go won't move
This may help. I followed a tech manual up to this point key on, pedal down, reading between b+ and m- has no voltage. It then says to go straight to step 16 which is on the pic I attached. Performing step 16 I have pack voltage so it says to check 4 pin control harness. What should I be checking. The red wire from the 4 pin connector goes back to one of the small terminals on the solenoid.
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07-03-2020, 07:08 PM | #6 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Ez go won't move
It says check 4 pin connector. Not pin-4 of connector.
There is a gray cable coming out of the pedal box under floor mat (can be seen from under cart) and at the end if it there is a 4 pin in-line connector. (See attached drawing - connector circled in red)) This connector causes all sorts of problems and many people eliminate it, using individual butt-splices or solder joints and waterproof them with marine grade (adhesive filled) shrink tubing. |
07-03-2020, 07:34 PM | #7 |
Not Yet Wild
Join Date: Nov 2019
Posts: 11
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Re: Ez go won't move
Sorry for the confusion. That is the connector I checked for voltage at.
Update. I read that if I have pack voltage on positive side of small terminals on solenoid with key on and pedal pressed down then my solenoid could be bad. Replaced with another one I had laying around but when I hooked it up I put the diode on backwards. When i turned the key on and pressed the pedal my micro switch in my pedal box started smoking. Woops. I disconnected.everything and re installed diode in the correct direction. Banded side on positive side. Re connected everything and the mircoswitch in the pedal box smoked again when I pressed the pedal |
07-03-2020, 07:42 PM | #8 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Ez go won't move
Quote:
If you do and the solenoid does not click when pedal is pushed, then you have a bad pedal switch. If the same diode and/or microswitch were used, the smoke isn't a surprise. |
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07-03-2020, 07:56 PM | #9 |
Not Yet Wild
Join Date: Nov 2019
Posts: 11
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Re: Ez go won't move
Am I supposed to have voltage on the small terminals when the pedal is pressed with the key on ?
I ordered a new solenoid , resistor, pedal micro switch, and a new ITS. |
07-04-2020, 11:24 AM | #10 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Ez go won't move
Before pedal is pressed, you should have voltage on both small terminals and after pedal is pressed there should only be voltage on one of them.
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