Skip the auto shop - Our mechanics make house calls

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.

A: Headlights are relatively simple circuits. ...

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: Turn signals don't work

Hi there. Check the fuse to the turn signals and see if its blown. If the fuse is not burned, then check the wiring from the switch to the turn signal lights. Use a digital ohm meter and see what...

Q: Timing off

The pinion teeth of the starter motor engage with the teeth on the flex plate, and the starter motor cranks over the engine. I don't see how you could have messed up your timing during a starter replacement. But it...

Q: How Do Headlight Wipers Function?

Headlight wipers are small wiper arms and blades that clean the headlight assemblies on select vehicles equipped with such a system. The headlight wipers turn on when the windshield wipers are turned on, and if they are equipped with headlight...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.