Why is my headlight bulb 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.
Do headlights run on a fuse?
Like all electrical systems, the headlights in your vehicle have a fuse in the circuit to prevent too much electricity from reaching the bulb. There will also be a headlight relay that switches power from the low beams to the high beams. If the fuse goes bad, you likely won’t have any headlights at all.
Are there separate fuses for each headlight?
If one or both headlights don’t work after you replace the bulbs, check the fuses. The low beams and high beams have their designated fuses for each of the circuits. In some car models, you will have a separate fuse for the left and right low beams. Locate the fuse box under the engine and by the dashboard.
How do I fix my headlights not working?
Clean the lenses, replace the bulbs, or repair the charging system. If your headlights always seem dim, the problem could be foggy lenses or worn out bulbs. If your headlights seem to dim during specific circumstances, there may be a charging system issue.
Why are my new headlights 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. High beam headlights don’t work or low beams don’t work. The cause: A burned out bulb, or a problem with the high beam switch or relay.
Why is my night time headlights not working?
Less common, a faulty headlight switch would stop high beams working. A failing headlight switch is uncommon, because the headlight switch is inside the vehicle and well-protected. Still, if you drive a lot, especially at night when you must constantly change between high beams and low beams, you might wear out the headlight switch.
When your headlights are not working?
When headlights stop working, it’s usually an electrical problem or an physical issue with the bulbs themselves. In order to get to the bottom of the situation as quickly as possible, it’s important to make note of exactly what type of failure you have experienced.
What causes a light bulb not to work?
10 Reasons Why Your Lights Don’t Work Plug or wall switch. Not to suggest that you’re a dim bulb (pun intended), but have you made sure the fixture is plugged in and/or the switch is on? Circuit breaker. Is anything else in the room failing to turn on? Light bulb. Socket tab. Lamp or fixture switch. Cord. Socket. Wall switch and fixture cable. Fixture wiring. Circuit cable.