Upgrading your vehicle’s brake lights to LEDs is a popular modification that offers numerous benefits, including improved visibility, a modern aesthetic, and increased energy efficiency. However, switching to LEDs can sometimes trigger a “hyperflash” issue, where your turn signals flash rapidly. This occurs because the LED bulbs draw significantly less current than traditional incandescent bulbs, causing the turn signal flasher unit to malfunction. To resolve this issue and restore normal turn signal operation, you’ll need to install load resistors.
How to Install Load Resistors for LED Brake Lights
Load resistors are electrical components designed to mimic the current draw of incandescent bulbs, effectively tricking the turn signal flasher unit into operating correctly. This guide will walk you through the process of installing load resistors for your LED brake lights, ensuring your vehicle’s lighting system functions flawlessly.
Overview
The installation process is relatively straightforward and involves connecting the load resistors in parallel with your LED brake lights. We’ll cover the necessary tools, safety precautions, and step-by-step instructions to ensure a successful installation.
How To Install Load Resistors For LED Brake Lights
LED brake lights offer numerous advantages over traditional incandescent bulbs, including increased longevity, improved visibility, and enhanced fuel efficiency. However, installing LED brake lights in vehicles equipped with incandescent bulb systems can sometimes lead to issues with the vehicle’s electrical system.
One common problem is hyperflashing, where the brake lights flash rapidly instead of staying illuminated. This occurs because the LED bulbs draw significantly less current than incandescent bulbs, causing the vehicle’s flasher relay to interpret this as a malfunction. To resolve this issue, load resistors are often necessary. Load resistors essentially mimic the current draw of incandescent bulbs, tricking the flasher relay into operating normally.
Understanding Load Resistors
Load resistors are electrical components designed to dissipate excess electrical energy as heat. In the context of LED brake lights, they are used to compensate for the lower current draw of LEDs compared to incandescent bulbs. By adding a load resistor to the circuit, the overall current draw is increased, preventing hyperflashing and ensuring proper brake light functionality.
Types of Load Resistors
There are two primary types of load resistors commonly used for LED brake lights:
* **Inline Load Resistors:** These resistors are typically small, cylindrical devices that are wired directly into the brake light circuit. They are relatively inexpensive and easy to install. (See Also: How To Install Disc Brake Pads)
* **Canister Load Resistors:** These resistors are enclosed in a metal or plastic canister and are designed to dissipate heat more effectively than inline resistors. They are generally more expensive but offer better heat management, which is crucial for prolonged use.
Installing Load Resistors
Installing load resistors for LED brake lights is a relatively straightforward process that can be performed by most DIY enthusiasts with basic electrical knowledge. However, it’s essential to follow the proper steps and safety precautions to avoid damaging your vehicle’s electrical system.
Tools and Materials
Before you begin, gather the following tools and materials:
* Load resistors (appropriate wattage for your LED bulbs)
* Wire strippers
* Electrical tape
* Screwdriver
* Multimeter (optional)
Step-by-Step Installation Guide
1. **Disconnect the Battery:** For safety, always disconnect the negative terminal of your vehicle’s battery before working on any electrical components.
2. **Locate the Brake Light Wiring:** Identify the wires connected to your LED brake lights. These wires will typically be located in the taillight housing or within the vehicle’s wiring harness.
3. **Install the Load Resistors:**
* **Inline Resistors:** Strip a small amount of insulation from the ends of the wires connected to the brake lights. Connect one end of each inline resistor to the corresponding brake light wire. Secure the connections with electrical tape.
* **Canister Resistors:** Mount the canister resistors securely in a location where they will not interfere with other components and have adequate ventilation. Connect the wires from the brake lights to the appropriate terminals on the resistor canister. (See Also: When To Use Front Brake On Motorcycle)
4. **Reconnect the Battery:** Once the load resistors are installed, reconnect the negative terminal of the battery.
5. **Test the Brake Lights:** Turn on your vehicle’s ignition and test the brake lights to ensure they are functioning properly. The brake lights should illuminate steadily without hyperflashing.
Troubleshooting Common Issues
If you experience any issues after installing load resistors, here are some common troubleshooting steps:
* **Incorrect Resistor Wattage:** Ensure that the load resistors you installed have the appropriate wattage for your LED brake lights. Using resistors with too low a wattage may not effectively compensate for the current draw of the LEDs, leading to hyperflashing.
* **Loose Connections:** Check all wire connections to ensure they are secure and properly insulated. Loose connections can cause intermittent brake light operation or even short circuits.
* **Damaged Resistors:** If the load resistors are damaged or malfunctioning, they will not be able to dissipate the necessary current and may cause hyperflashing or other electrical problems.
* **Faulty Flasher Relay:** In some cases, the flasher relay itself may be faulty and require replacement.
Recap
Installing load resistors for LED brake lights is a relatively simple process that can resolve common hyperflashing issues. By understanding the different types of load resistors and following the proper installation steps, you can ensure your LED brake lights function correctly and safely. Remember to always prioritize safety by disconnecting the battery before working on electrical components and to consult a qualified mechanic if you encounter any difficulties. (See Also: How Much To Do A Brake Fluid Flush)
Frequently Asked Questions: LED Brake Light Load Resistors
Why do I need load resistors for my LED brake lights?
LED brake lights draw significantly less current than traditional incandescent bulbs. This can cause your vehicle’s brake light system to malfunction, resulting in hyperflashing or the brake lights not working at all. Load resistors mimic the resistance of incandescent bulbs, tricking the system into thinking a normal bulb is installed.
What type of load resistors should I use?
There are two main types: incandescent and electronic. Incandescent resistors are cheaper but generate heat. Electronic resistors are more efficient and produce less heat, making them a better choice for most applications. Choose a resistor with the correct wattage for your LED lights.
How do I install load resistors?
Installation varies depending on your vehicle and the type of resistor. Generally, you’ll need to connect the resistors in parallel with your LED brake lights. This usually involves splicing into the wiring harness. Consult your vehicle’s wiring diagram and follow the instructions provided with your load resistors.
Can I install load resistors myself?
If you’re comfortable working with car electrical systems, you can likely install load resistors yourself. However, if you’re not familiar with car wiring, it’s best to seek help from a qualified mechanic.
Where can I buy load resistors?
Load resistors are widely available online and at auto parts stores. Be sure to choose a reputable seller and purchase resistors that are specifically designed for automotive use.
