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Why are my headlights not working?
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Aug 19, 2022 · If your headlights aren't working, check these four common problems and fixes for everything from one malfunctioning bulb to high beams not working.
Feb 12, 2023 · How To Fix Both Headlights Not Working. The only way to ensure that the proper repair occurs is to start with a complete diagnostic evaluation. By taking time to figure out what’s wrong, you’ll know what needs to be replaced or repaired. Here are a few possibilities. 1. Inspect & Replace Headlight Switch
If the automatic headlights in your car aren’t working, don’t worry. You don’t have to be a master mechanic to troubleshoot and fix the issue. I will guide you through the basic steps needed to fix automatic headlights that are not working and then offer advice on maintaining them.
- Check your fuses for the headlight: One of the first things to check when one headlight isn’t working is the fuses. If the fuse is blown, it will prevent the headlight from having any power and won’t allow it to turn on.
- Check the bulbs of the headlight. When one headlight stops working, it is important to check the bulbs first. This is especially important if the headlights are exposed to extreme weather.
- Check the headlight wiring. In order to determine why one headlight is not working, it is important to check the wiring of the headlight. It is possible that the wiring has become frayed, damaged, or disconnected, preventing the headlight from turning on.
- Check the headlight relay. Checking the headlight relay is one of the first steps to take when diagnosing why one headlight is not working. Usually, the relay is located in the fuse box and it is responsible for controlling the power supply to the headlight.
- Blown Fuse. So, you may already know this, but fuses are actually safety devices that are there to protect the electrical circuits in your car. They work by having a small piece of wire that melts and breaks the circuit if the current flowing through it becomes too much.
- Faulty Relay. A relay is like an electrical switch that opens and closes circuits, either with mechanical or electronic magic. In your car, relays take charge of the high current that powers the headlights, letting them turn on and off.
- Worn-Out Headlight Switch. This is the switch with which you turn on and off the headlights, if they aren’t automatically turned on and off when you start or stop the car.
- Damaged or Corroded Wiring. If the wiring to the headlights gets messed up or corroded, it can stop the electrical current from reaching the headlights.
If only one of your headlights is not working, it’s likely due to a burned-out bulb, a faulty socket, or a wiring issue specific to that headlight. How do I know if my headlight relay is faulty? You can test if your headlight relay is faulty by swapping it with a similar relay, like the horn relay, to see if the headlights start working.
Jan 17, 2021 · Troubleshooting guide: Headlights not working? Learn how to diagnose and fix common issues, from burned-out bulbs to faulty wiring.
