If you are installing LED bulbs in your turn signals you will need to install an electronic flasher relay that can handle the low current draw of the lights. If you don’t you will run the risk of the “hyper flash” problem where your turn signal bulb flashes too fast and is a pain in the neck!
The Basics
First, you will need to find your vehicle’s turn signal wiring harness. This usually includes a common wire that runs to the front of the engine compartment, position light wires on each side of the engine compartment and turn signal circuit wires. Once you have located these wires, you’ll need to attach one side of the load equalizer to each of those wires. You’ll also need to make sure the load equalizer can reach an internal metal surface on your vehicle so it can reach the wires that are running to the turn signals.
How It Works
A flasher uses a resistive wire that is connected to the power wire that comes from the fuse, then through the signal relay and on to the signal bulbs in your turn signals. When you push down or raise the turn signal lever, the resistive wire is pulled up against the spring steel in the flasher, causing it to heat up, expand and make contact with the current flowing through the wire and on to the signal bulbs. This causes the current flow to complete the circuit and send a bright glow through the signal bulbs.
Normally the filament of the lamp is completed all the time, but when you use the brake and turn signals, one filament stays on and the other turns off. That’s how your brake lights work too, except that the brakes have two filaments, one for the brake light and the other for the turn signal.
How Does It Work
The circuit in your car’s flasher relay is designed to make the bulbs in your turn signals and hazard lights work properly. The resistive wire in the flasher relay connects to the power wire that comes from the fuse, and through the signal relay on to the bulb in each of your turn signals. When you push down or lift the turn signal lever, the resistive wire pulls up against the spring steel in the flasher relay, causing it to heat up, expand, and make contact with the current flowing through the bulb in each of your turn signals. This causes the current flow to complete the signal circuit and send a bright glow through the bulb in each of your turn signals.
