
The following steps tell you how to troubleshoot the speed controller of an EZ-GO golf cart:
- Turn the maintenance switch under the seat of your golf cart to tow-maintenance mode.
- Disconnect the negative cable from the battery. This is the black cable connected to the battery post. ...
- Remove the cover present on top of the speed controller and reconnect the negative cable of the battery.
- Check the wiring connection thoroughly. They should be well-connected and attached properly. Also, make sure that there is no corrosion, breakage or any form of interference among the wires.
- Connect the positive and negative probes of a voltmeter to the corresponding battery terminals and note down the battery voltage.
- Keep the positive probe of the voltmeter above the solenoid post, which is nearest to the battery and check the reading. ...
- Repeat the above step by keeping the voltmeter probe on the solenoid post that is away from the battery. ...
- Connect the positive and negative probes of the voltmeter to the B+ and M terminals of the speed controller respectively and check for a voltage rise from 0 to the ...
What is a club car speed controller?
A Club Car controller, also known as a speed controller, has the basic function of being the brain and speed control or power management system for the Club Car golf cart.
How do you test a golf cart controller?
To test a club car precedent controller, connect a voltmeter between the negative terminal of your cart’s battery and the M terminal on the controller. Then push the pedal down and look for a clicking noise from the solenoid. Your batteries should read as full. You must determine whether your golf cart batteries are working properly or not.
What does a club car golf cart controller do?
How to Reset Club Car Precedent OBC? What Does a Club Car Golf Cart Controller Do? The speed controller in Club Car golf carts plays an important role in managing the power system. It is the controller that controls the acceleration and deceleration of a golf cart.
Where is the speed sensor on a club car precedent?
The speed sensor in a Club Car Precedent golf cart is located on the back of the motor. To remove the sensor, unplug the cables behind the motor. You can use a 5/16-inch socket to remove the pigtail connector and pop off the plastic housing that encases the speed sensor. Symptoms of a Bad Speed Sensor

How do you test a club car controller?
2:5915:0248 Volt Club Car Diagnostics - YouTubeYouTubeStart of suggested clipEnd of suggested clipOut of the key switch. And into this micro switch. Now to make sure this micro switch is working.MoreOut of the key switch. And into this micro switch. Now to make sure this micro switch is working. Now this will also give us light even if it's not at 4-4 or reverse it's in neutral it gets light as
How do you test a speed sensor on a Club Car golf cart?
Activate the Run/Tow switch of the golf cart by keeping it in Run position and try to push the cart. If your speed sensor is good, you should hear a beep and experience resistance to the pushing action by slowing down. If the sensor is bad, your cart will start rolling.
How do I know if my golf cart controller is bad?
X Common Symptoms of Controller FailureTop Speeds Not Appropriate for Your Cart. Golf carts are designed to reach pretty specific speeds and to not go over them or beneath them. ... Sudden and Unexpected Slowing. ... Shuttering or Shaky Driving. ... Stalling Out and Refusing to Start. ... Surges in Speed When Driving.
How do you bench test a golf cart controller?
0:002:12How to bench check curtis controller and golf cart motor - YouTubeYouTubeStart of suggested clipEnd of suggested clipTo the curtis controller. And just clap your positive. There then you're going to take anotherMoreTo the curtis controller. And just clap your positive. There then you're going to take another jumper lead to give you your voltage to power up the controller.
How do you bypass a speed sensor on a golf cart?
The speed sensor on the EZGO golf cart can be bypassed by unplugging it from the speed controller. By disconnecting the J5 pin on the speed controller, this will cause the golf cart to creep along as the controller will go into limp mode.
How does club car speed sensor work?
The speed sensor on a golf cart is used to interpret the rpm of a motor. From there, it then passes this information to the speed controller found in the cart. The point of this device is to keep control of the many motor functions that exist. This includes regenerative braking and a protection called roll away.
How can I test my speed controller?
0:395:30Testing controller for blown mosfetts - YouTubeYouTubeStart of suggested clipEnd of suggested clipWe start by connecting one of the probe to the ground wire of the controller. And you take theMoreWe start by connecting one of the probe to the ground wire of the controller. And you take the positive probe.
How do you reset a golf cart controller?
Easily Reset the Club Car Golf Cart OBCKey switch to off.Set forward/reverse to neutral.Put tow/run switch to tow.Disconnect the negative battery terminal from the battery pack.Put the tow/run switch to run.Put forward/reverse switch to reverse.Put key switch to on.More items...
Where is the reset button on a Club Car golf cart?
Identify your main battery supply (usually the largest battery) on your motor. Check around this supply for a small red button that may or may not be labeled “Reset”. Press and hold this button for a few moments and then release it to reset the motor.
How do you bypass a golf cart controller?
1:594:09electric golf cart, simple Motor and controller bypass key hotwire direct ...YouTubeStart of suggested clipEnd of suggested clipSo let's just go ahead and bypass the solenoid by putting one alligator clip on that bolt.MoreSo let's just go ahead and bypass the solenoid by putting one alligator clip on that bolt.
How does a golf cart speed controller work?
Essentially, your golf cart's speed controller sends its current and battery voltage to its motor. This process depends on your golf cart's input device, which includes its throttle. That's how your golf cart's speed controller lets you operate its acceleration rate, as well as its deceleration rate.
How do you test a motor controller?
1. Using a MultimeterStep 1: Connect your controller to the battery.Step 2: Set the multimeter reading. ... Step 3: To test for continuity, set your multimeter to continuum. ... Step 4: Test every line that comes out of the controller. ... Step 5: Set your multimeter to resistance mode to test for resistance.More items...•
What does a speed controller do on a golf cart?
Essentially, your golf cart's speed controller sends its current and battery voltage to its motor. This process depends on your golf cart's input device, which includes its throttle. That's how your golf cart's speed controller lets you operate its acceleration rate, as well as its deceleration rate.
Why does my electric golf cart go slow uphill?
The Reason Your Electric Golf Cart Goes Slow Uphill? Your electric golf cart can struggle on inclines for a variety of reasons. Weak batteries, incorrect tires, and wear and tear to the motor and wiring are all potential causes of your cart's slow speed.
Why is my gas golf cart running slow?
Low Battery Usually, the most common reason golf carts slow down is when they don't get enough power output from the battery. If the battery pack charge is very low and your cart is out of power, your cart will run slow.
How do you troubleshoot an electric club car?
Test the wall socket where you charge your cart. Every golf cart has a built-in charger that connects to a wall socket. ... Expose your golf cart batteries. ... Test the batteries for voltage. ... Replace dead batteries. ... Expose the motor for inspection. ... Reset the motor. ... Test the cart.
How to test a speed sensor on a golf cart?
Two methods of testing your speed sensor are the following: Activate the Run/Tow switch of the golf cart by keeping it in Run position and try to push the cart.
What is a Golf Cart Speed Sensor?
A golf cart speed sensor interprets the rpm of the motor and passes on this detail to a speed controller present in the golf cart. This helps to keep control over several motor functions including roll-away protection and regenerative braking.
How to check voltage on golf cart?
Ensure that the 3-pin plug from the sensor is connected and place a wire-piercing probe on the output green wire. Lift one wheel of the golf cart and turn it one full rotation with your hand. The voltage reading should change from 0V to 5V 24 times for one full revolution.
Why does my golf cart stutter?
Your golf cart may move very slowly as if it’s creeping along or it may move at an erratic speed. You may experience stuttering in your golf cart like when you have a bad battery or there is a low voltage problem. A broken or damaged magnet on the motor can result in a bad speed sensor.
What type of motor does a golf cart use?
A golf cart uses either an AC or a DC motor. DC wound motors don’t incorporate golf cart speed motors because they don’t have many features such as roll-away protection and regenerative braking.
Why do golf carts roll off?
Roll-away protection is essential for the safety of the golf cart. If the parking brake is not activated, the golf cart tends to roll off when it is in a neutral position and stopped in an incline.
How to check battery voltage?
Connect the positive and negative probes of a voltmeter to the corresponding battery terminals and note down the battery voltage.
How does a golf cart speed controller work?
The golf cart's speed controller sends its current and battery voltage to its motor. This entire process depends on your golf cart's input device, which includes its throttle. That's how the golf cart's speed controller allows you to operate its acceleration rate, as well as its deceleration rate.
Why replace club car speed controller?
There are several reasons why you might want to replace or repair your Club Car speed controller, including customization of Club Car, adjustment or upgrade of the motor, or upgrading Club Car controller to better fit your needs.
Why is a speed controller important?
Why Club Car Speed Controllers are Important. The basic function of a speed controller is, as the name implies, to control and manage the cart's speed. If your golf cart is working on a Brushless DC or AC motor, you will not be going anywhere without a speed controller.
How many amps does a club car need?
If the cart is mainly used to transport 1 to 2 people or light loads on smooth roads, a small 2-5 horsepower and lower controller around 200-300 Amps will work best.
How to control a cart's speed?
In addition to controlling the cart’s speed, there are a few other functions that speed controllers can offer. Limit the current to the motor to protect both engine and controller in case of overloading. Determine the battery current so that battery is protected from excessive discharging. Monitor battery health and charge.
What does it mean when there is no controller?
When there is no controller, it means battery drainage is at its peak, as motors can operate independently at their high speed, which increases stress on the mechanical and electrical components. A speed controller notes the battery voltage and current to the motor based on operator input types like the throttle, twist grip, or pedal force.
Why limit current to motor?
Limit the current to the motor to protect both engine and controller in case of overloading.
What is the function of a speed controller on a golf cart?
Following are some of the primary functions of the speed controller: Limiting Motor Current – Protects the motor and controller from damage in case of stalling and overloading. Limiting Battery Current – Managing current drawn from the battery ...
Why is a golf cart controller important?
From being able to change your golf cart's speed to manage all the electrical components perfectly, the controller is an important element of your cart. You could say the controller is the heart of your cart. A properly selected and maintained controller will allow the vehicle to operate smoothly and safely. Learn more about your Club Car speed ...
Why won't my golf cart run?
If your controller is damaged, your cart won't run. However, a few other reasons could lead your vehicle to stop running. Since the speed controller is the heart of your electric golf cart, you need to make sure that the problem is not something else first. Following is a list of things to check before you troubleshoot the speed controller.
What to do if your golf cart doesn't start?
If the cart doesn't start, check the solenoid. If the solenoid is working fine and allowing power to flow, then you can begin inspecting the controller. Learn more about symptoms of a bad golf cart solenoid. If all the components are working well, the next step is to check the speed controller.
How to start a golf cart when it's dead?
Start with batteries and make sure they are working properly. If your batteries are dead, your golf cart will not start. Charge your batteries completely, and then try to drive the cart.
What is a club car controller?
The Club Car controller is also known as a speed controller, and the best thing about the controller is that it works as a brain and speed control system for the golf cart.
What is a programmable controller?
Programmable Controller. The programmable controller can easily be configured for the needs of your cart. This controller's most significant and important advantage is that programmable controllers produce 60% less heat than other controllers.
How does a club car controller work?
In this way, today’s modern speed controller’s meters out the battery voltage and current to the Club Car motors on the basis of numerous input parameters such as; throttle, brakes and twist grips. Hence, the operator of the Club Car would be able to control the speed at which Club Car is moving by the way of acceleration and deceleration cycles. Following are some of the main functions of the controller, irrespective of the type of the motor:
How to troubleshoot a golf cart?
GOLF CART CONTROLLER TROUBLESHOOTING 1 Make sure it isn’t your batteries! If your batteries are old and dead, then your golf cart will not operate. Charge them fully first and attempt to drive the unit. 2 If your batteries are fully charged and your vehicle won’t run, when you press on the accelerator pedal, then you should hear a clicking sound which will indicate the solenoid is engaging and allowing power to flow to your controller. If there is no distinct clicking sound, then check your solenoid. Also, it could have to do with something in the accelerator device as well. But, we can eliminate the controller as being defective. 3 If your batteries are fully charged and you get a clicking sound ensuring the solenoid is allowing power to flow to the controller, then you can begin inspecting the controller 4 Check all the wiring and signs of disconnection or damage. Also, most controllers will have an operation light that will begin to flash a morse code that will unveil the secrets of the problem. If that is the case and all of the above have been eliminated, then you are getting closer to determining it is the controller.
What is the advantage of a programmable controller?
The key advantage of this controller is that; programmable controllers produces 60% less heat than other controllers. Programmable controllers are epoxy potted or in other words Club Car controller troubleshooting, which let controller failure due to the vibration and water corrosion get easily eliminate.
Why won't my club car run?
Due to their expense, you want to be sure your controller is the major reason and problem with your Club Car. First off, if your controller is bad, your vehicle won’t run. However, there are other reasons that could lead to your vehicle not running. Here are a few quick troubleshooting tips.
Why limit current to motor?
Limiting the current to the motor so that both motor and the controller could be protected in case of motor stalling and overloading.
What does it mean when there is no controller?
When there is no controller, it means batteries drainage is at its peak, as motors can operate independently at their high speed, which would gradually increase stress on the mechanical and electrical components and let motors and batteries degrade quicker.
How to tell if a controller is bad?
Check all the wiring and signs of disconnection or damage. Also, most controllers will have an operation light that will begin to flash a morse code that will unveil the secrets of the problem. If that is the case and all of the above have been eliminated, then you are getting closer to determining it is the controller.
When upgrading your golf cart controller, do you suggest working with manufacturers that have spent the time building controllers for your specific?
When upgrading your controller for your golf cart, we suggest working with manufacturers that have spent the time building controllers for your specific brand.
How many volts does a golf cart need?
You’ll find that most vehicles in this category run with 24 to 36 Volt battery packs.
Why is a speed controller important?
The Importance of the Speed Controller. The main objective for the speed controller is, as the name implies, to control the vehicle speed. Let’s say you try to operate that old DC motor without a controller. Any time you apply throttle, the full battery current and voltage is sent to the motor.
What is the center of a golf cart?
As you can see, the speed controller is the center of your golf cart, and most of the other modern day electric vehicles.
What is the most important part of a golf cart?
Even though the speed controller is probably one of the most important parts on your golf cart, not many people understand how they work or what they do. In this guide, we breakdown the speed controller so you have a complete understanding of their functions, and hopefully come out with the knowledge to make an educated decision on the type ...
What can a controller do?
With the controller you are able to control your acceleration and deceleration, as well as the speed at which your vehicle moves.
Why is it important to program a speed controller?
This is important stuff! Programming your speed controller to handle how the vehicle will be driven can make a huge difference. Not only will your golf carts mechanical components last longer, but you’ll be able to avoid overheating during operation, depending on your conditions.
Where is the controller on a golf cart?
This controller is typically located under the seat on your golf cart. Determining if the controller is bad is a relatively simple procedure. Lift the golf cart's bench seat to gain access to the engine. Locate the governor on the engine. This is the small “T”-shaped metallic rod around the top of the golf cart’s motor.
How fast does a golf cart go?
The speed controller, also known as the “governor,” generally keeps a golf cart from exceeding 10 miles per hour.
How to find the governor on a golf cart?
Locate the governor on the engine. This is the small “T”-shaped metallic rod around the top of the golf cart’s motor. Look for the carburetor in the engine. The carburetor is the cylindrical shaped object in the engine that has valves pointing up and out of the motor. Pull on the governor closer to the carburetor.
