Many of us have experienced it. You are driving in the middle of the road, covered with a night sky. Then suddenly, the headlamp of your car stopped working. There are varying reasons why your headlights won't turn on.
We will review some of these common causes and how you should prepare. One of the primary reasons why headlamps won't turn on is the possibility of burned wires. These wires connect the headlights to the car's main battery. Either the wires have a loose connection in the middle of the circuit or start to burn. What to do: Check the connecting wires. Disconnect if there's burning of wires or a loose connection and then replace them with new ones.
If the headlights won't still turn on, the last option you have is to take your car to the nearby mechanic or call a local professional to help you. If the headlamps won't turn at all even though you've already removed the daytime running module, then it is advised to check the relay in your car headlights.
What to do: Remove the existing relay and replace it with a new relay. So, you have already changed the relay but the headlight still not working? Maybe you're dealing with a bad headlight switch or a multi-function switch. What to do: Look at this failure through removing the component. Afterward, check if there's physical damage. There are several possibilities that people are not able to see the failure of the bad headlight switch.
If this is your case, disable the headlamps. Only take the fuse off in the headlight or disconnect the battery. The problem might be a weak ground connection, a bad ignitor, wiring harness defect at the ignitor, a loose bulb, a tarnished bulb socket or a bad headlight bulb. If the bulb does not light up, the problem could be a corroded socket or a wiring fault, which is a problem best addressed by your mechanic. Instead of heating a filament to produce light, electricity arcs between two electrodes inside the bulb.
HIDs are more efficient than halogen lamps, making more light with less energy. HID headlights require a ballast to step up the voltage, so they also require a more complex electrical circuit with a high-voltage ignitor, which complicates the troubleshooting process just a bit.
Solution: In some HID headlights, the bulb and the ignitor are one unit and both must be replaced. Repeat the process outlined above to determine if the bulb is the issue. If the bulb lights, then you know that all you need to buy is a new ignitor module. Background info: Driving without headlights is extremely dangerous, reducing your ability to see at night or during inclement weather. 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. If you do so, there are high chances that your headlights will turn on again. If the relay is in bad condition, then you just have to change the headlights relay, and they will turn on again.
If the headlights of the car do not turn on even after changing the headlight relay, then there are chances that there is a possibility of a multifunction switch or bad headlight switch. To inspect and diagnose the multifunction switch problem is difficult in comparison to other failures. You can simply check and inspect this particular failure by the removal of the component and check if there is any other physical damage. For instance , if the headlight of the car gets short internally there are chances that the switch gets hot enough to either crack or meltdown.
Also, the bad headlight switch getting short there are chances that the plastic housing will burn down or the electrical connections will burn down. There are many possibilities that you will not be able to recognize the failure of the multifunction switch. If you are not able to inspect this failure, then the best thing that you can do is to disable the headlights. For disabling the headlights, you just have to disconnect the battery, or you can even remove the fuse that is there inside the headlight of the car.
Also, there is a possibility that the wires that connect the headlights of the car to the main battery of the car start burning. In this case, the first step that you have to perform is to check out the connecting wires. If there is a loose connection or burning of wires, then you have to disconnect those wires and replace them with brand new wires. If the replacement of the wires is not done on time, then there are chances of a short circuit between the wires, which might lead to excess smoke in the bonnet of the car.
It might also result in excessive heat inside the car that will be harmful to the people sitting inside the car and the engine of the car.
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