How To Stop Hyper Flash

How to Stop Hyperflash After Installing LED Bulbs

So you've upgraded your car's incandescent bulbs to stylish and energy-efficient LEDs, but now you're plagued by the annoying rapid blinking – hyperflash. Don't worry, you're not alone! This common issue happens because your car's flasher relay isn't receiving the correct electrical load it expects from the incandescent bulbs. Here's how to fix it:

Understanding Hyperflash

Before diving into solutions, let's understand why hyperflash occurs. Your car's turn signal system relies on a specific electrical current flow to function correctly. Incandescent bulbs draw a significant amount of current. LEDs, being much more energy-efficient, draw far less. This discrepancy fools the flasher relay into thinking a bulb is burned out, leading to the rapid blinking we know as hyperflash.

Solutions to Stop Hyperflash

There are several ways to resolve this issue, ranging from simple fixes to more involved modifications:

1. Using a Load Resistor

This is the most common and often easiest solution. A load resistor is wired in parallel with each LED bulb. The resistor essentially provides the missing electrical load, mimicking the current draw of an incandescent bulb. This tricks the flasher relay into functioning normally.

• Pros: Relatively inexpensive and easy to install.
• Cons: Generates heat, potentially reducing lifespan and posing a minor fire risk if not properly installed. Requires some electrical knowledge.

Important Considerations: Make sure you use a resistor with the correct wattage and resistance to match your LED bulbs. Improperly sized resistors can still cause problems or even damage your system. Check your LED bulb specifications for guidance.

2. Replacing the Flasher Relay

Another option is swapping your car's original flasher relay with an electronic flasher relay designed for LED bulbs. These relays are specifically engineered to work with lower current draws and don't require load resistors.

• Pros: Clean solution, no added heat or extra wiring.
• Cons: Might require slightly more technical expertise to locate and replace the flasher relay. The relay needs to be compatible with your specific car's make and model.

3. Using an LED-Specific Flasher Module

Some vehicles require a more advanced solution. An LED-specific flasher module can be a more reliable and sophisticated alternative to simply replacing the relay. These modules often incorporate additional features such as improved flash rate control and increased safety.

• Pros: Often provides superior performance compared to simple relay replacements.
• Cons: This is usually the most expensive option and may require more advanced technical skills for installation.

4. Checking Wiring and Connections

Before resorting to more involved solutions, ensure all your LED bulbs are correctly installed and there are no loose connections. A faulty connection can also disrupt the current flow and cause hyperflash.

Choosing the Right Solution

The best solution depends on your comfort level with automotive electrical work and your budget. For many, a load resistor is the simplest and most affordable option. If you're comfortable with more advanced modifications, replacing the flasher relay or installing an LED-specific flasher module offers a cleaner, potentially longer lasting solution.

Remember to always consult your vehicle's manual and take necessary safety precautions when working with car's electrical system. If you are unsure about any of these steps, it is always best to seek professional assistance. Proper installation is key to avoiding further problems and ensuring the longevity of your new LED lights.