Check the outside of the vehicle lamp burnout fault is a simple thing. However, maintenance of a comprehensive system for the vehicle lamp is not so simple.
Timely maintenance of the vehicle lighting is essential for drivers, because it affects not only driving comfort, but also directly related to traffic safety. Usually before getting reminded, the owner is difficult to realize that headlights, taillights, turn signals or parking lights no longer work properly. Incidentally, replace burned out bulbs work is very simple, cost less than their DIY repair station for the lighting system maintenance fees.
More often, the lights burned out bulb failure must not be limited, or plug socket corrosion damage of this kind of small issues that often require specialized diagnostic techniques to analyze the root cause of failure. Even those low-cost car, its interior and exterior lighting is controlled by the host computer; while those luxury cars, only their headlights to be controlled by three computers.
If your car is equipped with daytime running lights system must first understand how these devices. If the vehicle is equipped with a light-controlled light (ie, when the outside light is dim to a certain extent, the system has a function to automatically turn on the headlights), may wish to check the photosensitive from the weakest to the strongest state in the lights of the work process, of course, Do not ignore the check for automatic off timer. If the system is equipped with a timer, set it to the maximum delay.
If the headlight is damaged, usually similar fixtures replaced. Some cars are equipped with high-intensity discharge headlamps HID, high-pressure arc the device through its pre-designed electronic system to produce high-density discharge generates light. Note that ordinary quartz - halogen bulbs can not be applied here. Also check before headlight lenses for cracks, because although the surface cracks do not affect the performance of the headlights illuminated, but the moisture will penetrate the cracks along the fixture, which is bound to reduce the lamp life.
In addition, the calibration of headlight illumination direction should also be included in the list of maintenance items. I grab the key, but also must not forget to test other light system, such as turn signals, license plate light, showing the wide lights, parking lights, down lights and brake lights (including middle brake light CHMSL) and so on. In addition, many vehicles will fog lights as standard equipment or popular attachments, fog is usually installed in the car a lower position, and therefore vulnerable to stone damage, while its maintenance, in addition to checking the lighting system itself, the headlight lens crack should not be overlooked.
Some Auto diagnostic tools will help you test out your vehicle on your own, for example: Launch X431 IV, Launch X431 V Pro, Launch X431 Pro3, Autel MaxiDas DS708 and so on.