Check exterior lighting bulbs burn out quickly and failure is an extremely simple task, but the lighting of the vehicle to a comprehensive system maintenance is not so simple. Timely maintenance of the vehicle lighting is critical to drivers, because it affects not only driving comfort but also directly related to traffic safety. Often been reminded before, the owner is difficult to realize that headlights, taillights, turn signals or parking lights no longer work properly. By the way, replace the burned out light bulbs work is very simple, the DIY costs less than service stations for lighting system maintenance fees.
More cases, the lights burned out light bulbs are not merely the failure, corrosion or plug socket of this kind of small issues that often require specialized diagnostic techniques to analyze the root cause of failure. Even those low-priced car, the interior and exterior lighting is controlled by the main computer. Those luxury cars, only their headlights to be controlled by 3 computers.
If your car is equipped with a diurnal light system DRL you must first understand the working principle of these devices. For example, some diurnal light system before the engine is started, the lights can not be opened on the line; there are diurnal light system, if the parking brake is not canceled, even if the engine has started, its lights still on the line does not work. If the vehicle is equipped with a light control light (dim light, that is, when the outside world to a certain extent, the system automatically turns headlights with the function), may wish to check the light sensitivity from the weakest to the strongest state in the light of the work process, of course, Do not ignore the check automatically turn off the timer. If the system is equipped with a timer, set the maximum delay.
If the headlight damage and will often be replaced with similar fixtures. Some cars are equipped with high-intensity discharge headlamps HID, the device through its electronic system to produce pre-designed high-pressure arc discharge generates high-density source. Note that the ordinary quartz - halogen bulbs can not be in this application. Also, check whether there are cracks headlights, because although the surface cracks will not affect the headlights lighting performance, but moisture along the crack into lamps, and this is bound to reduce the lamp life.
Calibration of the direction of headlights light maintenance projects should be included in the list, because the drivers driving in order to ensure maximum safety, headlights must be able to provide a good vehicle before driving to the lighting.
Seize the key, but also an examination must not forget the other light system, such as turn signals, vehicle license plate light, showing the wide lights, parking lights, reverse lights and brake lights (including the middle brake light CHMSL) and so on. In addition, many vehicles will fog lights as standard equipment or optional popular pieces, fog lights, usually installed in the car a lower position, so vulnerable to damage by stones, in their maintenance, in addition to checking the lighting system itself, the lights of the crack should not be overlooked.
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