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Why does my headlight work on high beam but not low beam?
2. Headlight Fuse or Relay is Bad. 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.
What does it mean when one of your car lights dont turn on but your high beams do?
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.
What would cause low beam headlights not to 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.
How do I know if my low beam relay is bad?
The most common sign of a bad headlight relay is headlights that don’t work. A headlight relay will typically fail in the open position, preventing voltage from reaching the headlights. If the low beam relay fails, the low beams won’t work.
Is there a fuse for low beam lights?
There may be a blown fuse or the wiring leading to your headlights may have been compromised. First, locate the headlight fuse and make sure it is intact. The filament in your low beam bulb may be about to break or there may be a voltage issue going to the headlight when you have the low beams on.
Why are my high beams not working?
By far the most common reason your brights will stop working is from a blown fuse or a bad relay. Or, it could be a bad relay. If the headlight relay has failed, it may not respond when you attempt to switch the high beams on. Replacing the relay should restore the system and get your high beams working once again.
Why wont my brights stay on?
Is it illegal to drive with high beams on?
Can I Drive with My High Beams On? It is illegal if you flash or use high beam headlights within 500 feet (0.15 km) of the oncoming vehicle (oncoming traffic). In the case that oncoming drivers refuse to dim their headlights, you have to keep your eyes on the right edge of the road ahead.