Battery. The first thing you will want to check is to make sure that there is electricity flowing from the battery. This may seem obvious, but it is one of the most common problems when dealing with LED tail lights that are not working. You can check the electricity flow by simply trying to use your horn.
Why won’t my LED tail lights work?
Tail and Turn Signal Light LED Bulb Fix
Or, do your tail lights not work correctly? The reason for this is your cars computer thinks your bulb in burnt out. LEDs don’t use much power and don’t put a the current draw (LOW resistance) needed across the terminals of your tail, signal, or break light.
Why do my brake lights work but not my tail lights?
Dislocated or Damaged Wiring
Damaged or disrupted wiring can cause tail lights not to work, but brake lights are. The two lightings use different wiring as each bulb has got its power supply. A recent accident at the tail end of your car can increase the likelihood of this problem.
Do LED tail lights need resistors?
LED lights are excellent when powered directly from the battery or in addition to an existing circuit; however, this is not the case when used to replace OEM tail-lights. … Load resistors are needed on indicator lights and, depending on the base vehicle, perhaps on tail, stop and reversing lights as well.
How do you troubleshoot LED lights?
Top Common Problems with LED Lights
- Reason 1: Loose wire connection.
- Reason 2: Low quality LED.
- Reason 3: Loose bulbs.
- Reason 4: Improper dimmer setup.
- Reason 5: Power supply broken.
- Reason 6: High wattage electrical appliance.
- No flicker LED sports lighting.
- a. Improper power supply for LED lights.
How do I fix my tail lights?
How To Replace a Tail Light
- Step 1: Open trunk or tailgate. …
- Step 2: Pull tail lamp assembly out (if needed) …
- Step 3: Pull bulb out. …
- Step 4: Add bulb grease, put new bulb in. …
- Step 5: Reattach assembly (if needed) …
- Step 6: Repeat on other side.
Is there a fuse for tail lights?
On newer cars, the tail lamps can be fused separately and/or each bulb or shared circuit can be fused. A fuse can be blown due to other problems, so you’ll need to check more than just the fuse, but it’s the right place to start. Look in your owner’s manual to determine where the fuse box is located in your car.
Are brake lights and tail lights the same bulb?
In many vehicles, the brake lights and the tail lights are located on the same globe. In other words, the same external covering is over both lights. Your vehicle’s might be a bit unique, with separate globes. … On most vehicles, the tail lights are red and the brake lights are a more luminous red.
How can I test my tail lights?
At night, back up close to a wall and hit the brakes. You should be able to see a red glow on the wall showing if the lights are working. Have someone step on the brake pedal while you look at the back end of the vehicle. There should be at least 2 bulbs that light up regardless of the lighting configuration.
Is it illegal to have one brake light out?
It’s true that broken taillights can be used as an excuse for police to examine your vehicle for other reasons, but that’s entirely legal as well. Since a broken taillight is a reasonable cause for them pulling you over, they will have clear vision of anything else in your car that is illegal, should it be present.
What happens if you don’t use a resistor with an LED?
When hooking up an LED, you are always supposed to use a current-limiting resistor to protect the LED from the full voltage. If you hook the LED up directly to the 5 volts without a resistor, the LED will be over-driven, it will be very bright for a while, and then it will burn out.
Why are my LED lights 2 different colors?
If two primary color within the group of three LED elements are missing, this simply means that two surface-mounted components (resistors) have been damaged. Observe the PCB strip around the location of the missing primary color (red, green, or blue) and see if you see any damage.
How do LED bulbs burn out?
Unlike incandescent light bulbs, LEDs don’t produce light using heat. This is part of what makes them so energy efficient. The downside is that their components can be sensitive to overheating, which can cause them to burn out prematurely.
How can you tell if a LED light is bad?
Connect the negative lead from the multimeter to the cathode (negative) lead on the LED. The LED should glow dimly, indicating it’s working. If the LED does not light, swap the connection to the LED leads. The LED should now light, if not the LED is faulty.