It is an extremely fast and simple task to check the bulb burnout of the exterior lamps, but it is not so simple to carry out comprehensive and systematic maintenance on the exterior lamps. Timely maintenance of lamps and lanterns outside the car is very important to drivers, because it not only affects the comfort of driving, but also directly affects the safety of driving. It is often difficult for a car owner to realize that the headlights, tail lights, turn signals or parking lights are not working properly until they are reminded. Shinesell Auto points out that the job of replacing a burnt-out bulb is so simple that the DIY cost is less than what a repair station charges for lighting system maintenance.

  In more cases, the failure of car lights is not limited to such minor problems as bulb burnt out, socket corrosion or plug damage. It often requires professional diagnostic techniques to analyze the root cause of the failure. Even for those low-priced cars, the interior and exterior lights are controlled by the main computer. And those luxury cars, only their headlights are controlled by 3 computers.

  If the car is equipped with daytime running light system DRL, you must first understand the working principle of these devices. For example, the daytime running lights of some daytime running lights cannot be turned on before the engine is started; there are also some daytime running lights, if the parking brake has not been cancelled, even if the engine has been started, the daytime running lights still cannot work normally. If the vehicle is equipped with light-controlled lights (that is, when the outside light is dim to a certain extent, the system has the function of automatically turning on the headlights), you may wish to check the working conditions of the lights during the process of the light sensitivity from the weakest to the strongest state. Don't neglect to check the auto-off timer either. If the system is equipped with a timer, please 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), which generate a high-density light source through a high-voltage arc discharge generated by its pre-designed electronic system. Note that ordinary quartz-halogen bulbs cannot be used here. In addition, check whether there are cracks in the headlights, because although surface cracks will not affect the lighting performance of the headlights, moisture will penetrate into the lamps along the cracks, which will inevitably reduce the service life of the bulbs.

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

  Shinesell Auto reminds everyone that you must not forget to check other lighting systems, such as turn signals, license plate lights, width indicator lights, parking lights, reverse lights, and brake lights (including the middle high-mount brake light CHMSL). In addition, many vehicles also use fog lights as standard equipment or popular options. Fog lights are generally installed at a lower position on the car, so they are extremely vulnerable to damage from stones. When maintaining them, in addition to checking the lighting system Apart from itself, cracks in the headlights should not be ignored.