How to Fix Hyper Flash Without Resistor in 9 Simple Steps

How to fix hyper flash without resistor might seem daunting to many, especially if you’re not familiar with your vehicle’s electrical system. However, the reality is far from intimidating. Within this guide, you’ll find clear, step-by-step instructions that will empower you to tackle this issue head-on.

Fixing Hyper Flash With Resistor

Now, let’s peel back the layers of complexity and give you the keys to return your vehicle’s turn signals to their proper functioning pace.

How to Fix Hyper Flash Without Resistor

Fixing hyper flash without a resistor involves several steps such as identify hyper flash symptoms in your vehicle, use a thermal flasher relay, or alternatively replace the electronic flasher, if hyper flash still persists then finally consider using a capacitor.


1. Identify Hyper Flash Symptoms

Detecting hyper flash symptoms is the first step towards solving the issue. Hyper flash is a term used to refer to a situation where your vehicle’s turn signals flash more rapidly than usual. The standard rate for turn signal flashing is about 60 to 90 times per minute; any flash rate significantly faster than this can be considered hyper flashing.

A Black Car With Turn On Hyper Flash

Hyper flashing typically happens after replacing standard filament bulbs with LED bulbs in your vehicle’s turn signal lights. Since LED bulbs draw less current, the vehicle’s electrical system may misinterpret this as a signal that a bulb has burnt out. This is because traditional flasher units are designed to blink faster to alert the driver of a burned-out bulb.

Remember that not only is hyper flashing distracting, but it is also hyper flash illegal in many jurisdictions leading towards issues. This is due to the potential for rapid flashing to confuse other drivers, potentially leading to accidents. Therefore, identifying hyper flashing is not merely a matter of personal preference or comfort, but also a question of vehicle safety and legal compliance.

To identify hyper flash, you don’t need any special tools. A simple visual inspection is enough. Observe your turn signals both from the outside of the vehicle and from the driver’s seat to make sure you’re seeing what other drivers see. Be alert to feedback from other motorists who might inform you of the rapid flashing of your turn signals.

2. Purchase a Thermal Flasher Relay

Once you’ve identified the hyper flash problem, the second step involves is acquiring a thermal flasher relay. This piece of equipment can help mitigate the rapid flashing of LED turn signals without the need for load resistors, which were more commonly used in older vehicle models.

Different Thermal Relay of Car

A thermal flasher relay is a device designed to manage the current flow through the LED turn signals and hence ultimately avoiding the hyper flashing problem. By doing so, it prevents the LED turn signals from hyper flashing, thereby rectifying the issue caused by the lower current draw of the LED bulbs.

Thermal flasher relays are generally available at most automotive parts stores. However, not all thermal flasher relays are the same, and it’s important to choose the right one for your vehicle. When shopping for a thermal flasher relay, be sure to have your vehicle’s specifications on hand.

3. Install the Thermal Flasher Relay

With your new thermal flasher relay in hand, you’re ready to proceed to the installation phase. This process is crucial for ensuring the relay works as intended, making your LED turn signals operate at a standard flash rate. It’s also worth noting that the installation process can be different depending on your vehicle’s make and model.

To start, ensure your vehicle is in a safe location and turned off. Disconnect your car’s battery to safeguard against accidental short-circuits or electric shocks. Now, locate the existing flasher unit within your car; typically, it’s found within the dashboard or near the steering column.

Once you have located the flasher, unplug it from its socket carefully. Now, take your new thermal flasher relay and insert it into the same socket. Make sure to align the pins correctly and push it in until it clicks into place. Remember, forcing it might cause damage to the relay or the socket.

Finally, reconnect your vehicle’s battery and ensure all systems are functioning correctly. If you’re unsure about any aspect of this installation process, it’s better to seek help from a professional to avoid any potential harm to your vehicle.

4. Test Your Turn Signals

After installing the new thermal flasher relay, it’s time to verify whether the hyper flash issue has been successfully addressed. This stage involves testing your turn signals to confirm if they are flashing at a normal pace.

A Car With Signal Light OnStart your vehicle and activate each turn signal individually: right, left, and then the hazard lights. Watch the rhythm of the lights. They should flash consistently at a rate of about 60 to 90 times per minute. If this is the case, then the thermal flasher relay has been effective in rectifying the hyper flash problem.

However, don’t stop at a mere visual inspection. It’s also important to check from the driver’s seat what you see when you signal. The signal indicators on your vehicle’s dashboard should also blink at a normal pace, matching what you see externally.

Testing your turn signals is not just about ensuring the hyper flash problem is resolved; it’s also a check on your road safety. Other drivers must be able to understand your intentions on the road clearly, and functioning turn signals play a crucial role in this communication.

5. Select an Electronic Flasher if Needed

If the hyper flash issue persists after installing a thermal flasher relay, an alternative approach is to replace the existing electronic flasher in your vehicle. The process of selecting the right replacement flasher is critical and requires attention to various technical details.

Red Electric Flasher Light

The first and foremost consideration is the compatibility of the new electronic flasher with your vehicle’s electrical system. This compatibility is determined by several factors such as voltage rating, amperage rating, and the type of flasher.

The voltage and amperage ratings refer to the operational parameters of the flasher. The voltage rating must match your vehicle’s electrical system’s voltage. Similarly, the amperage rating should not exceed the maximum current your vehicle’s circuit can handle.

As for the type of flasher, there are three common types: normally open, normally closed, and latching. The “normally open” flasher is the most common, used by most vehicles. The “normally closed” flasher is used in some vehicles, and the “latching” flasher is used quite rarely. These types differ in their current handling and operational mechanisms, so choosing the correct type for your car is essential.

6. Install the New Electronic Flasher

Once the correct electronic flasher is chosen, it’s time to install it in your vehicle. As always, safety first – ensure the vehicle is turned off and parked safely. Disconnect your car’s battery before starting the installation to prevent potential electrical mishaps. The existing electronic flasher usually is located within the dashboard or near the steering column.

After locating it, carefully unplug the old flasher from its socket. The next step is to insert the new electronic flasher into the same socket. Make sure to align the pins correctly before pushing it in. An improper installation can lead to electrical problems or even damage the new flasher. After the new electronic flasher is firmly in place, reconnect your vehicle’s battery.

At this point, it’s worth double-checking everything. Ensure that all connections are secure and that there are no loose wires or parts. Remember, if any of these steps make you uncomfortable or uncertain, consider seeking professional help. The idea is to get your turn signals flashing at a normal pace, and safety should never be compromised.

7. Test Your LED Turn Signals Again

Following the installation of your new electronic flasher, it’s necessary to put your LED turn signals through a second round of testing. This step’s purpose is to check if the new device has successfully rectified the hyper flash issue.

Driver Testing LED Lights of His Car

Start your vehicle and systematically activate each turn signal – first the right, then the left, and finally, the hazard lights. Pay attention to the flashing pattern. Each turn signal should now flash at a regulated pace, approximately 60 to 90 times per minute.

But remember, the external inspection isn’t enough. From within the driver’s seat, check your dashboard indicators. They should be flashing at the same rate as the external turn signals, indicating a cohesive and properly functioning system.

In addition, listening for the “click” sound synchronized with the flash can be another indicator of a functioning turn signal. It’s part of the sensory feedback drivers rely on when signaling a turn or lane change.

8. Consider Using a Capacitor if Hyper Flash Persists

If your LED turn signals continue to hyper flash even after the thermal flasher relay and electronic flasher replacements, it might be time to consider another alternative: using a capacitor.

Blue Capacitors On A White Background

A capacitor, like a relay, can help regulate the current flowing through the LEDs and prevent them from flashing too quickly. Capacitors store and discharge electricity, providing an additional load in the circuit that may help stabilize the flash rate.

When considering a capacitor, the voltage rating, capacitance value, and the type of capacitor (electrolytic, ceramic, or film) must be carefully selected to match your vehicle’s requirements. It’s often best to consult with a knowledgeable automotive professional or the manufacturer for specific recommendations.

Keep in mind, however, that using a capacitor is typically seen as a last resort and might require more expertise to install correctly. If you’re not comfortable performing this task, seeking help from a qualified professional is advisable to avoid any potential issues or risks.

9. Install the Capacitor and Conduct a Final Test

In this final step, you’ll install the selected capacitor and carry out a conclusive test to verify if the hyper flashing issue is resolved. Remember, dealing with electrical components requires precision and caution, so if at any point you feel uncomfortable, do consider seeking professional assistance.

To begin with the installation, make sure your vehicle is turned off and parked safely, with the battery disconnected to prevent accidental electric shocks or short-circuits. Locate the flasher unit within your car, typically found within the dashboard or close to the steering column. This is where the capacitor will be installed.

Capacitors are installed in parallel with the LED turn signals, meaning the positive end of the capacitor connects to the positive wire of the LED, and the negative end to the negative wire. Ensure the capacitor is secured and its connections are insulated properly to prevent any short circuits.

After the installation, reconnect your car’s battery. Now it’s time to conduct the final test. Start your vehicle, and as before, sequentially activate each turn signal and hazard lights. Monitor the flash rate closely – it should now be steady and regular, with no signs of hyper flashing.

Make sure to also verify the dashboard indicators. They should flash in synchronization with the external signals. As an additional check, you might want to have someone stand outside the vehicle to verify the signals are operating correctly.

Can Fixing Hyper Flash Without a Resistor Also Solve the Issue of a Dodge Ram Key Fob Not Working?

Can fixing hyper flash without a resistor also solve dodge ram key fob issues resolved?


Having walked through our comprehensive guide on how to fix hyper flash without resistor, you should now be equipped with practical knowledge to tackle this issue. Summing up the key concepts we’ve covered:

  • Hyper flash is a common issue in vehicles with LED turn signals and can be identified by unusually rapid blinking.
  • A thermal flasher relay can be used to regulate the current flowing through the LEDs, thereby fixing the hyper flash issue in many instances.
  • If the thermal flasher relay doesn’t solve the issue, consider replacing the electronic flasher. Make sure to select the right one by considering factors such as voltage rating, amperage rating, and type.
  • Should hyper flashing persist, the use of a capacitor is an option. The right capacitor for your vehicle depends on the voltage rating, capacitance, and type.
  • Each solution attempt must be followed by thorough testing of your turn signals to verify if the issue has been resolved or if further measures are required.

These tried-and-tested methods will help restore normal flashing in your vehicle’s turn signals, ensuring both your safety and legal compliance.

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