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Old 08-12-2015, 03:17 PM   #1
Lakebit
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Default Solenoid no control power

Friend has an EZGO cart that stopped and will no longer operate.

I beleive this to be a PDS model based on chart found in sticky. Manufacture Code E1297, S/N 1018378. Curtis PMC controller P/N 73326G05.

The foot pedal micro switch has continuity but no voltage to switch, no voltage to yellow control wire on solenoid, 38.4 volts across battery pack and 37.8 volts to B+ on controller.

Thinking controller could have failed, any cheaper options possible?
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Old 08-12-2015, 03:40 PM   #2
kernal
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Default Re: Solenoid no control power

serial no indicates TXT standard (series). Not PDS. https://shop.ezgo.com/customer-servi...ialNumber.html
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Old 08-12-2015, 03:44 PM   #3
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Default Re: Solenoid no control power

which is it?
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File Type: jpg ezgo-guide-#2.jpg (139.0 KB, 0 views)
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Old 08-12-2015, 10:02 PM   #4
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Default Re: Solenoid no control power

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Originally Posted by scottyb View Post
which is it?
Scotty I used this sticky to come up with PDS. The plate with S/N is attached to a new carbon fiber dash, it has a solar panel roof and has had some modifications but still has the r/t switch and rocker style direction switch.

Key switch has continuity, foot pedal switch has continuity when activated but no voltage present. Does the power come from the controller?
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Old 08-13-2015, 07:10 AM   #5
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Default Re: Solenoid no control power

The controller part number is for a PDS controller and you mentioned it has a Run/Tow switch as well a a rocker switch type F/R selector, so it sounds like a PDS cart with a body from a series cart.

The power to all switches, except the reed switch, comes from the controller.

You are not getting voltage on the yellow wire to the solenoid, so check for full pack voltage on all the pins with red highlighted wires connected to them on the attached schematic.

Note: Voltage for the switches comes into the controller via J1 Pins 4 & 5, and pass through Run/Tow switch via J3.
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File Type: jpg Wiring Diagram - PDS - Solenoid activation traced.jpg (69.7 KB, 0 views)
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Old 08-13-2015, 09:33 AM   #6
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Default Re: Solenoid no control power

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Originally Posted by JohnnieB View Post
The controller part number is for a PDS controller and you mentioned it has a Run/Tow switch as well a a rocker switch type F/R selector, so it sounds like a PDS cart with a body from a series cart.

The power to all switches, except the reed switch, comes from the controller.

You are not getting voltage on the yellow wire to the solenoid, so check for full pack voltage on all the pins with red highlighted wires connected to them on the attached schematic.

Note: Voltage for the switches comes into the controller via J1 Pins 4 & 5, and pass through Run/Tow switch via J3.
Thanks JohnnieB, I will go over and check J1 connector for power through reed switch. Will this be easy to find?

That looks like a logical first step to check as the voltage is good on the solenoid post and battery pack.
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Old 08-13-2015, 09:52 AM   #7
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Default Re: Solenoid no control power

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Originally Posted by Lakebit View Post
Thanks JohnnieB, I will go over and check J1 connector for power through reed switch. Will this be easy to find?

That looks like a logical first step to check as the voltage is good on the solenoid post and battery pack.
The reed switch is located inside the charge receptacle and the voltage sent to J1 Pin-4 comes out of the backside of the receptacle on the smaller to the three wires. There is an in-line connector that wire connects to and that is the easiest place to check for voltage.

The voltage for J1 Pin-5 comes from the battery side large terminal on the solenoid.


If the reed switch is bad, bypass it as shown in attached picture.
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File Type: jpg Ezgo Reed Switch bypass.jpg (169.2 KB, 0 views)
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Old 08-13-2015, 05:57 PM   #8
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Default Re: Solenoid no control power

Quote:
Originally Posted by JohnnieB View Post
The reed switch is located inside the charge receptacle and the voltage sent to J1 Pin-4 comes out of the backside of the receptacle on the smaller to the three wires. There is an in-line connector that wire connects to and that is the easiest place to check for voltage.

The voltage for J1 Pin-5 comes from the battery side large terminal on the solenoid.


If the reed switch is bad, bypass it as shown in attached picture.
Have pack voltage on red and red/wht wires on J1 4&5. Power on J3 1&3 also checked continuity through R/T switch, pedal switch, direction switch and key switch all read good but no voltage to key, pedal or direction switch.

Jumped power from pack to solenoid control terminals and solenoid works when + & - connect to power source.

Is it possible to have the controller rebuilt or get an exchange if the controller is determined to be the problem?
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Old 08-13-2015, 06:36 PM   #9
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Default Re: Solenoid no control power

Plug the connector from the Run/Tow switch into J3 and measure the voltage by pushing your test probe into the backside of the molex plug.

With the Run/Tow in Run, you ought to have pack voltage to the keyswitch.

If so, with the key ON, you should have pack voltage to the F/R switch and pedal switch.

----------
Rebuilt controllers don't have good track records, but they are available.
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Old 08-14-2015, 11:06 AM   #10
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Default Re: Solenoid no control power

Quote:
Originally Posted by JohnnieB View Post
Plug the connector from the Run/Tow switch into J3 and measure the voltage by pushing your test probe into the backside of the molex plug.

With the Run/Tow in Run, you ought to have pack voltage to the keyswitch.

If so, with the key ON, you should have pack voltage to the F/R switch and pedal switch.

----------
Rebuilt controllers don't have good track records, but they are available.
Checked J3 plugged in back of molex plug, had pack voltage at all for sockets, checked J1 socket 9 back of molex, no voltage to switch, checked J4 socket 2 back of molex, no voltage to pedal switch. No voltage to F/R switch.

Any other possibilities besides controller? Would you recommend using a used controller someone might have removed for upgrade or is a new replacement the best option?
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