How to Wire Automotive Emergency Lights
Also called emergency flashers, automotive emergency lights are vital safety features because they inform other drivers of any problem or hazard. Since both the drivers in front and those behind you need to know when your ride is in trouble, emergency lights are wired through the headlights and the taillights. If one of these lights is malfunctioning or has burned out, replacement is as easy as pointing which flasher has fail, removing it and installing the new one in place, and rewiring it. Here are the steps in properly rewiring a new emergency light:
Difficulty level: Moderate
Things you'll need:
- Replacement bulb
- Socket set
- Thin-gauge electrical wire
- Pliers or wire cutters
- Utility knife
- Electrical tape or wire caps
Step 1: Find out which emergency flasher is damaged by turning on the vehicle's ignition and pressing the hazard light button.
Step 2: Open the hood and remove the negative battery cable using a socket set.
Step 3: Loosen and take off the screws that secure the headlight assembly on the inside portion of the headlight frame. With a screwdriver, pull it loose so you'll have access to the bulb holes at the back of the assembly. When wiring lights at the rear, open the trunk and with a screwdriver, loosen and remove the screws holding the tail light assembly in place.
Step 4: Disengage the plastic wiring harness connecting the light assembly at the rear.
Step 5: Gently twist the bulb socket to the left and take it off via the rear of the bulb housing. Then, pull out the old bulb from the socket and push the new one in place. Slot in the bulb socket through the hole in the headlight or taillight, and then tighten and secure it by twisting to the right.
Step 6: Connect the plastic wiring harness of the emergency light.
Step 7: Install the headlight or tail light assembly and secure it with retaining screws using the screwdriver. Once the assembly is secured, put the negative battery cable back in its place.
After installation and rewiring, check if the newly emergency light is working well.