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Why Do Signal Lights Blink Faster Sometimes?

Car Brake Lights

If your signal light is blinking faster than usual, you’re probably wondering if you have a broken taillight or a faulty connection. While both could be true, there’s not much reason to panic. Fixing a speedy light on a vehicle is a simple task that is usually quite affordable. Regardless, you’ll still want to have the issue resolved in a timely manner so that your Omaha drives remain safe and smooth. Review our tips below to learn more about your car’s signal lights!

Why Your Turn Signal Is Blinking Fast

Signal lights rely on a signal circuit, which is activated when you move the indicator arm up or down. This circuit relies on the load demand or the bulbs. Each signal circuit has predefined calculations for the current, resistance, and voltage, so if any of those variables change, the timing of the blinker can be disrupted. Causes of a signal light blinking fast include:

  • Bulb needs to be replaced
  • Bad ground connection
  • Weak voltage
  • Loose or damaged connections

Why Do My Turn Signals Blink Fast With LED Lights?

Are you asking, “Why do my turn signals blink fast with LED lights?” This phenomenon is known as hyper-flashing. Usually, this is caused by a lack of compatibility between the LED signal lights and the hardware on older cars. If you want to reduce signal lights blinking faster than they should, you can install a resistor or relay:

  • Fit a new turn signal relay, or replace an existing relay.
  • Install load resistors that copy the original load demand.
  • Purchase LEDs with a decoder and resistor already built in.

Let the Experts at Sid Dillon Chevrolet-blair Inc Check Your Signal Lights!

Now that you can answer the question, “Why do my turn signals blink fast with LED lights?”, you can monitor your lights for safer Blair travels! Along with offering insight on why your signal light is blinking faster than normal, we can help you handle all sorts of DIY car projects. From tips on simple tasks like filling your tires with air to offering guidance on complicated topics like how to bleed your brakes, you can count on us to guide you through your car care. Visit us near Omaha when you need automotive service.


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