Sunday, June 28, 2020

Precautions for headlight maintenance make your eyes bright

Checking the burn-out failure of lamps outside the car is an extremely quick and simple task. However, it is not so simple to maintain a comprehensive system for exterior lamps. Timely maintenance of exterior lights is crucial for drivers, because this not only affects driving comfort, but also directly relates to driving safety. Usually, it is difficult for the owner to realize that the headlights, taillights, turn signals or parking lights are no longer working properly before being reminded. By the way, the work of replacing burnt out light bulbs is very simple, and the cost of DIY is lower than the charge standard for maintenance of lighting system in the repair station.

In more cases, the failure of the lamp is not limited to small problems such as burnt out bulbs, rusted sockets, or damaged plugs. Professional diagnostic techniques are often required to analyze the root cause of the failure. Even for those low-priced cars, the internal and external lights are controlled by the host computer. For those luxury cars, the headlights are controlled by three computers.

If the car is equipped with DRLs (Daytime Runnin GLamps), you must first understand the working principle of these devices. For example, some daytime running light systems cannot turn on the daytime running lights before the engine is started; and some daytime running light systems, if the parking brake has not been canceled, even if the engine has been started, the daytime running lights still cannot work properly. If the vehicle is equipped with a light control lamp (that is, when the external light is dim to a certain level, the system has the function of automatically turning on the headlights), you may wish to check the operation of the lamp during the process from the weakest to the strongest state. Of course Don't ignore the check to turn off the timer automatically. If the system is equipped with a timer, set it to the maximum delay.

If the headlights are damaged, they are usually replaced with similar lamps. Some cars are equipped with high-intensity discharge headlamps HID. This device generates high-density light sources through high-voltage arc discharge generated by its pre-designed electronic system. Note that ordinary quartz-halogen bulbs cannot be used here. In addition, the headlight lens should also be checked for cracks, because although surface cracks will not affect the lighting performance of the headlights, moisture will penetrate into the lamp along the cracks, which will inevitably reduce the life of the bulb.

The calibration of the headlight illumination direction should also be included in the list of maintenance items, because in order to ensure the maximum safety of the driver's driving, the headlights must be able to provide good forward lighting for the driving vehicle.

While seizing the key, don’t forget to check other light systems, such as turn signals, license plate lights, width lights, parking lights, reverse lights and brake lights (including the middle high brake light CHMSL). In addition, many vehicles also use fog lights as standard equipment or popular options. Fog lights are generally installed in lower positions on the car, so they are very vulnerable to stone damage. In addition to checking the lighting system during maintenance In addition, the cracks of the headlight lens should not be ignored.

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