Alady 3157 LED Load Resistor Relay Harness Kit — Dual 50W 6Ω for Turn/Tail Lights, Plug-and-Play CANbus Fix

Alady 3157 LED 50W 6Ω load resistor relay harness kit is a plug-and-play wiring adapter that stops LED hyper-flash, flicker, and dashboard bulb error codes for 3157-style turn, tail, and parking lights.

When you swap OEM bulbs for aftermarket LEDs, many vehicles trigger warnings, strobe-like flash rates, or intermittent shutdowns because the low-wattage LEDs aren’t seen by the vehicle’s computer. This Alady kit adds the proper load and a heavy-duty relay to simulate a conventional filament bulb, restoring correct flash rate and preventing error messages in most 3157 socket installations.

How does this harness eliminate hyper-flashing and flicker?

The harness combines dual 50W resistors and a relay to mimic the electrical draw of a traditional bulb so the vehicle’s flasher and control modules behave normally. It supplies steady current to both high and low circuits, preventing rapid flash rates and visual strobing.

• Dual 50W, 6 ohm resistors for high and low beam circuits
• Heavy-duty relay for consistent power delivery
• Pre-wired plug-and-play connectors for 3157 sockets
• Minimizes flicker and stops dash error codes in many vehicles

Will this kit work with my car's DRL or auto-on systems?

In most vehicles, the kit prevents DRL dimming and keeps daytime running lights at full programmed brightness; however, results vary by manufacturer and model. It is designed to be compatible with many aftermarket LED conversions but cannot guarantee universal compatibility across complex vehicle electronics.

• Supports DRL systems by providing a stable load
• Helps prevent one-sided outages in cold weather
• May not resolve vehicles with advanced CAN bus decoding
• Check your socket type (3157) before purchase

How do I install and where should I mount the resistors?

Installation is straightforward: plug the harness into the vehicle socket and the LED bulb connector — no cutting or splicing in typical setups. Because resistors dissipate heat, mount them to a metal surface or other heat-resistant area away from plastic and wiring to avoid melt or fire risk.

• Plug-and-play 18 AWG pre-wired connections
• Mount resistors to chassis metal or heat-tolerant bracket
• Allow airflow around resistors; avoid plastic mounting points
• Includes two harnesses for a complete left/right installation

What limits or precautions should I know before buying?

While the kit resolves common LED compatibility issues, it may not work with every vehicle’s on-board diagnostics or custom wiring. Use this product only on vehicles with 3157-style sockets and follow heat-safety mounting instructions to reduce risk of damage.

• Designed for 3157, 3057, 3457 standard sockets only
• Not compatible with CK-type sockets
• Resistors become extremely hot—do not mount on plastic
• Manufacturer cannot guarantee 100% compatibility for all vehicles

Who is this for? The Alady 3157 LED load resistor relay harness kit is for DIYers, mechanics, and car enthusiasts who installed aftermarket 3157-style LED bulbs and need a reliable solution to stop hyper-flashing, flicker, or error codes. It’s best for owners of vehicles that use standard 3157 sockets and who can safely mount heat-producing components to a metal or heat-resistant area. If your vehicle uses advanced CAN-bus decoding or a non-standard socket, verify compatibility before purchase.