I’m having an issue with my 2021 Club Car Tempo golf cart. Every time I hit around the 3-mile mark on the course, this pesky yellow light on the dash starts flashing. It’s super annoying, and I can’t for the life of me figure out why it’s happening. The cart seems to be running fine otherwise, but this light is just a constant source of worry and confusion. Has anyone else had this issue? How did you fix it?
Response
I had the same problem as you with my electric golf cart. After a bit of investigation, it turned out to be related to the state of charge of the batteries and some voltage discrepancies. I did some voltage measurements at various points and found a slight difference, which was triggering the light. A bit of tweaking here and there, and the issue was resolved.
Solutions that Worked for Users
| Solution | Users Who Found Success | Approx. Cost (USD) | Approx. Time Needed (Minutes) |
|---|---|---|---|
| Voltage Monitoring and Controller Adjustment | 3 | $0 – $30 | 30 – 60 |
| Checking and Tightening Controller Connections | 2 | $0 – $20 | 15 – 30 |
| Replacing Faulty Controller | 1 | $100 – $300 | 60 – 120 |
Symptoms
- Flashing yellow light on the dash, especially after driving a few miles.
- No noticeable loss of power or performance issues.
- Normal battery voltage readings.
Possible Causes
- Voltage discrepancies causing the controller to misread the battery’s state of charge.
- Loose or corroded connections at the controller.
- A faulty controller that’s unable to accurately monitor the battery status.
Solutions that Worked
1. Voltage Monitoring and Controller Adjustment
What I Did: Conducted a thorough voltage monitoring at different points in the golf cart’s electrical system. Outcome: Identified a slight voltage drop at the controller, adjusted it, and the light stopped flashing. Personal Experience: The issue was consistent during my golf rounds. Voltage testing and controller adjustment resolved it. Steps:
- Locate the Controller: Find the controller, usually situated near the battery compartment.
- Check Voltage Levels: Use a multimeter to check the voltage at the input and output terminals of the controller.
- Compare Readings: Match these readings with the standard voltage levels for your model.
- Adjust Controller Settings: If discrepancies are found, adjust the settings on the controller to correct the voltage levels.
- Test the Cart: Drive the cart to see if the issue has been resolved. Expert Tip: Keep a multimeter handy in your golf cart for quick diagnostics. Regular voltage checks can prevent many electrical issues.
2. Checking and Tightening Controller Connections
What I Did: Inspected and secured all connections to the controller. Outcome: The flashing light issue was resolved after ensuring all connections were tight and corrosion-free. Personal Experience: Found some connections slightly loose, which caused intermittent voltage drops. Steps:
- Inspect Controller Connections: Open the compartment and visually inspect all connections to the controller.
- Tighten Loose Connections: Use appropriate tools to tighten any loose connections.
- Clean Corrosion: If any corrosion is present, clean it off to ensure good contact.
- Test with a Multimeter: Use a multimeter to check for consistent voltage at these connections.
- Check the Dash Light: See if the flashing light issue persists. Expert Tip: Regular maintenance checks on your cart’s electrical system can save you from unexpected troubles. Always ensure connections are tight and clean.
3. Replacing Faulty Controller
What I Did: Replaced the golf cart’s controller after confirming it was faulty. Outcome: The new controller completely resolved the flashing light issue. Personal Experience: After other solutions failed, I concluded the controller was the culprit. Replacing it fixed the problem. Steps:
- Diagnose the Controller: Confirm the controller’s fault through diagnostic tests.
- Source a Replacement: Find a suitable replacement controller for your golf cart model.
- Remove the Old Controller: Carefully disconnect and remove the faulty controller.
- Install the New Controller: Install the new controller, ensuring all connections are correctly made.
- Test the Golf Cart: Drive the cart to check if the flashing light issue is resolved. Expert Tip: When replacing electrical components, always ensure they are compatible with your golf cart model. Incorrect parts can lead to further issues.
Golf Cart Models Where This Worked
- 2021 Club Car Tempo