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.

What causes low beams to not work?

The likely cause is a fuse, headlight relay, headlight switch, dimmer switch or a wiring fault. About the only cause that is an easy fix is a blown fuse. Consult your owner’s manual to locate the main fuse for the headlight circuit and replace that fuse with one having the same amp rating.

What does low beam headlight out mean?

When driving at night, you can easily tell that a headlight bulb has blown out. If the beam on the side is completely out, this is an indication that the car is using one bulb for both high and low beam. After you have identified the beam that has a problem, you can easily replace the blown out bulb.

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.

Are headlights and low beams the same thing?

High beams and low beams are two different parts of your car’s headlights. Both high and low beam headlights are important safety features on your vehicle, but many drivers don’t know whether their car uses different bulbs for high and low beams. The truth is, it all depends on the type of car you drive.

Is low beam the same as daytime running lights?

Basically, daytime running lights, or (DRL) as they may be listed, are your vehicle’s low beam headlights that are on during daytime driving. They may also be your low beam headlights on normal power, fog lights run at lower power or special lights that function for this purpose specifically.

How do you test a low beam relay?

Open the hood, locate the fuse box with the headlight relay or relays, and open it. Put your ear close to the relay and listen. Alternately, you can wedge the handle of a long screwdriver into your ear, and touch the screwdriver point to the relay. You can hear the relay click though the screwdriver like a stethoscope.

How do you test a low beam headlight?

The top of the low beam shining on the wall should be at or slightly below the height of the center of the headlight lens for most vehicles. You should expect the light pattern to be higher on the right side (passenger side) to illuminate road signs and lower on the driver’s side to prevent blinding other drivers.

Are headlights the same as low beams?

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.

What to do if your high beam headlights are not working?

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.

What are some of the 2004 Chevy Trailblazer headlight problems?

Head light Problem with my 2004 Chevrolet Trailblazer Truck. 4.2 inline six. 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.

Why is my headlight not working on my Toyota Corolla?

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.