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Summary of car lighting problems

By, CoolMotor

• 2024-04-18
• 2 View

The headlights of a car are the eyes of the car, paving the way for driving safety. The small lights of the car are like the beacon of the car, allowing you to clearly distinguish the direction. The car's rear brake light is like a righteous traffic policeman, flashing red instantly when an emergency stop is needed. The lighting of a car is also a language of the car. It is a way for everyone to communicate while driving. In fact, there is no clear way of communicating, but something that everyone has agreed upon. Of course, the premise of all this is the car lights. Everyone is familiar with car lights, because after buying a new car, many car owners want to convert the original halogen headlights into xenon lamps or change the small lights into LED lights. They must be practical while ensuring that they are "sexy" enough. Then the problem arises. When driving on the road, we often see cars with lights off, especially the brake lights at the back. Driving at night is very dangerous. In fact, the damage to the car lights is nothing more than the following situations.

Summary of car lighting problems. If the lights are not bright, check these places.

1. The light bulb is often damaged

Frequent damage to light bulbs is common in small light bulbs. After the bulb has been replaced for a period of time, the filament fuses or "suffocates" directly after turning on the light. This situation is relatively common. The reason is mostly due to the instantaneous output voltage being too high, causing the filament to fuse. Here are some things to do. Pay special attention to the tolerance range of the fuse. Use the fuse correctly and do not use a higher rated fuse to save trouble. For example, do not use 15A where 10A should be used.

2. The headlight is dim

Dim headlights vary depending on the situation. Some old halogen lamps may have this problem, which has something to do with the bulb itself. Another type is caused by minor faults, such as loose lighting fuses, loose lighting connectors, poor contact in the headlight switch or relay, excessive voltage drop due to leakage in the car wiring, or poor grounding due to excessive load, etc., so when the lighting appears this When such situations occur, you can check them one by one according to the above-mentioned clues.

3. The brightness of the headlight on one side is normal and the brightness on the other side is dim.

This situation is often encountered. In most cases, it is a problem with the headlight itself. Many car owners seldom repair it because of the repair price. Another situation is that there is poor grounding on the dim side of the headlight or incorrect contact at the plug.

4. The high beam or low beam does not light up

There are not many cases where the headlights do not light up, and the causes are relatively simple. Generally, they are broken wires or poor plug contact, blown high-beam or low-beam fuses, damaged lighting relays, damaged bulbs, or damaged headlight assemblies.

5. The small light does not light up

It is very common that the small light does not light up. It can be said that it exists in many cars, but the car owners do not care. When a small light does not light up, it is usually caused by a damaged bulb, followed by a blown fuse, followed by a circuit failure. As for the relay, it is also affected, but it only affects one line, which includes the small light.

6. The brake light does not light up

The reasons why the brake light does not light up are basically the same as the reasons why the small light does not light up. However, one thing to note is that the brake light also has an additional control switch - the brake switch. When the brakes are applied, the switch is turned on to light up the brake light (most models ).

7. All lights are off

Having said so many issues about individual car lights, what should I do if all the lights in the car are not on? Then you can make a bold guess that the car must have "flooded". In fact, it is difficult to encounter the situation where all the car lights are off during normal use of the car. Except for the car power being disconnected (including the car power management fuse being blown) or the battery being extremely depleted and damaged, these situations are quite extreme. It will not be touched by normal car use.