Q: What does it mean when my headlights won't come on?

asked by on

My headlights won't come on but they will come on high beam but won't stay on
My car has a manual transmission.

Headlights are relatively simple circuits. You will want to check all components from the switch to the bulb. To perform these tests, you will need to have a voltmeter and understand how to use it. You will test for available voltage before and after the switch (You can also test switch function with an ohmmeter). You will want to check the fuses and or relays in the fuse box that relate to the circuit. You will want to inspect the power supply for shorts or a loose connection. If there has been any damage to the vehicle, you should automatically check what has to do with the circuit in that area. Continue to inspect for any visual damage or shorts in the circuit. If you have inspected all of these components and have not found the fault, you will want to inspect the bulbs and make sure they have not malfunctioned at the same time. It would be rare, but could happen. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What does it mean when my headlights won't come on?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: car vibration

If the struts are defective, that can be a cause of vibration. It sounds like the struts have to be replaced anyway, so I would suggest doing that first. Check the exhaust system (is it all OEM?). Check for damaged...

Q: Ac blowing got, brand new 2017 Chevrolet traxx

If your vehicle is covered by a manufacturer warranty, you should avail yourself of that in order to save money. Alternatively, if more convenient, you can request an air conditioning system inspection. The responding certified mechanic will come to your...

Q: Door locks, dome light, and headlights not working.

Hi there. Electrical issues are fairly common on your vehicle. If all of these circuits quit working at the same time most of the time it is due to a failure in the fuse box. The only way to diagnose...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.