What is the function of the daytime running lights in a car
The main function of car daytime running lights is to enhance the visibility of vehicles during daytime driving and reduce the incidence of traffic accidents.
Specific functions
Youdaoplaceholder0 enhance visibility
Daytime running lights make vehicles more easily noticed by other road users (such as pedestrians and vehicles) during the day through low-brightness light sources, especially in environments with poor visibility (such as rainy and foggy weather, entering and exiting tunnels, and sunlight reflection, etc.).
Youdaoplaceholder0 enhance security
Eu data shows that vehicles equipped with daytime running lights can reduce traffic accidents by 12.4% and deaths by 26.4%. Its working principle is to enhance the vehicle's presence by continuously emitting light, avoiding the risk of collision caused by blind spots.
Youdaoplaceholder0 regulations require
Since 2011, the European Union has mandatorily required all new cars to be equipped with daytime running lights, which cannot be manually turned off after starting to ensure all-weather visibility.
Precautions
The power of daytime running lights is only 10%-20% of that of ordinary headlights and does not increase additional energy consumption
It should be used in conjunction with low beam headlights at night and cannot replace the main lighting source
The function of daytime running lights is: they are lamps that make vehicles more recognizable when driving during the day. Its function is not to enable drivers to see the road clearly, but to let others know that a car is coming. Therefore, this kind of lamp is not a lighting lamp but a signal light. Of course, installing daytime running lights can make a car look cooler and more dazzling, but the greatest function of daytime running lights is not for aesthetics, but to enhance the vehicle's recognizability. When driving abroad, turning on the daytime running lights can reduce vehicle accidents by 12.4% and also lower the fatality rate in car accidents by 26.4%. In conclusion, the purpose of daytime driving lights is to ensure traffic safety. Therefore, in recent years, many countries have formulated relevant standards for daytime running lights to ensure that the daytime running lights produced and installed can truly play a role in ensuring safety. Among them, the most representative one is ECER79 in the ECE Automotive Technical Regulations of the Economic Commission for Europe. China also began to implement the national standard "Photometric Performance of Daytime Running Lights for Automobiles" which was issued on March 6, 2009, starting from January 1, 2010.
In 2011, the European Union stipulated that daytime running lights must be installed during the production of new vehicles. At the same time, after the driver starts the vehicle, the daytime running lights can automatically turn on without the need for manual operation. Therefore, all vehicles imported from Europe are equipped with daytime running lights. Meanwhile, the United States, Japan and South Korea have also started to install daytime running lights when manufacturing new cars. This has created favorable conditions for China to formulate regulations that vehicles should turn on their lights during the day.
The reasons why the daytime running lights do not work are as follows:
Turn off the daytime running lights in the vehicle Settings.
Solution: Replace the new fuse.
Solution: Turn on the daytime running lights again.
The fuse of a daytime running light has blown: For a blown fuse, it is usually the case that neither side lights up. If only one side does not light up, it is unlikely to be a problem with the fuse.
Wiring harness failure: Check the wiring harness between the headlight control module and the daytime running lights.
Solution: It should be repaired in a timely manner at a 4s store or a repair shop.
Faults of the guide ring driver: such as loose or poorly connected driver connectors.
Solution: Check the plug and wire harness. If they are loose, reinsert them tightly.
Problems with daytime running light bulbs: If the filament quality of the bulb is problematic, its resistance will increase as the temperature rises, which will cause the working current to decrease and eventually lead to the daytime running light going out.
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