Why does my high beam work but not my low beam?

Why does my high beam work but not my low beam?

Headlight Fuse or Relay These are designed to ‘blow’ and break the circuit if too much power comes through them. Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams.

Do high beams and low beams use the same bulb?

Most modern vehicles have a single bulb with two filaments. Some cars (mostly higher-end vehicles or performance vehicles) do have separate bulbs for their high and low beams. Generally, you’ll have a standard halogen bulb for low beams, and then an HID bulb for your high beams. These are not interchangeable.

Are driving lamps on when high beams are on?

If you are driving with your high-beam lights on, you must dim them at least 500 ft from any oncoming vehicle, so you don’t blind the oncoming driver. You must use low-beam lights if you are within 200-300 ft of the vehicle you are following.

Are your low beams your normal headlights?

Low beams are the ‘normal’ lights your car headlights emit and are used when driving at night or in a dim or dark setting such an indoor parking lot. Low beams have a short-range focus and are sometimes referred to as ‘dipped beam’. They are a way for other drivers to see you.

Should you use high beams or low beams in fog?

Don’t use high-beam headlights. They won’t shine through the fog but just reflect the light back in your eyes, making it worse for you and other drivers. Use low-beams. In really dense fog, use front fog lights in addition to your low-beams if you have them.

Can I turn my high beams into low beams?

Plug that into the high beam socket (you’ll have to modify it). Run a relay and a seperate power wire to your new low beam, and run the stock high beam wire to the high beam filament. There you have it. Low beams turn on all four lights, they don’t glare because you used the washers, and you still have high beams.

Why does everyone drive with their high beams on?

When should I use my high beams? High beams are designed to provide better visibility when driving in rural areas where street lights aren’t common. You should use your high beams if you’re driving at night and you aren’t within 200-300 feet of another driver.

Do you drive with high beams on in fog?

How far should low beams go?

about 160 feet
Q: How Far Should Your Headlights Shine While on Low Beam? A: According to the National Highway Traffic Safety Administration (NHTSA), the distance illuminated by low beam headlights is about 160 feet.

Are there any low beams that are still working?

Some time ago, my low beams just quit working. The bulbs are fine, (dual fillament, by the way) and the high beams still work. I checked the fuses and the relay for the low beams and all are still in tact.

Why do high beam headlights work but low beams don’t?

Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams. 1. Headlight Bulbs This is the most common reason we see for why a car’s high beam headlights work but the low beams don’t.

Is it safe to drive with high beams on?

No one wants to be driving along at night and have their headlights go out. In many cases, the high beams will still work when the regular headlights stop, but it’s just not safe to drive around with your high beams potentially blinding other drivers.

What causes a low beam lamp to stop working?

Usually diagnosing and correcting a low beam issue is relatively simple. It is a lamp that is going bad, a loose connection or a blown fuse.

Why does my high beam work but not my low beam?

Why does my high beam work but not my low beam?

Headlight Fuse or Relay If a headlight fuse blows, it could cause the headlights to stop working. Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams.

Do low beams and high beams use the same bulb?

Generally, you’ll have a standard halogen bulb for low beams, and then an HID bulb for your high beams. These are not interchangeable. If you only have two headlight elements (one per side), then your vehicle uses a dual filament bulb to operate both the high and low beams.

Where are headlight fuses located?

The front of the dash panel has a fuse panel on it.

Why is my low beam not working?

Most total headlight failures are caused by a bad component like a fuse, relay, or module. Wiring problems can also cause both headlights to stop working. The cause: A burned out bulb, or a problem with the high beam switch or relay. The fix: Replace the bulb, switch, or relay.

Why are the headlights not working on my Chevy Trailblazer?

Repairs for this problem = Replaced both headlight bulbs and checked fuses . Answer: As long as all the fuses are good, and the high beams work correctly, then the common problem is a faulty headlamp relay. See picture below. This relay is in the under hood fuse block.

What to do if your headlights Don’t Come On?

Repairs for this problem = Replaced both headlight bulbs and checked fuses . Answer: As long as all the fuses are good, and the high beams work correctly, then the common problem is a faulty headlamp relay. See picture below.

Where is Terminal 4 on a low beam headlight?

Terminal #4 is the relay output terminal to the low beam headlight fuses #3 & #6. Terminal #5 is switch battery power from the BCM. I do not recommend testing this terminal with a test light. Terminal #6 is continuous battery ground and is terminated at the lower left side of the engine.