The lights elm327 maintenance and routine maintenance

Check exterior lighting bulbs burn out failure elm327    is an extremely quick and simple, but comprehensive system maintenance, exterior lighting is not so simple. The timely maintenance exterior lighting drivers crucial, because that affects not only driving comfort, but also directly related to traffic safety. Usually be reminded, the owners are hardly aware of the headlights, taillights, turn lights or parking lights already not working properly. By the way, very simple to replace the burned out bulb, lower than the cost of its DIY repair station lighting system maintenance charges.
More cases, the failure of the lights must not only limited to the bulb burns out, corroded socket or plug is damaged small problems often need to take professional diagnostic techniques to analyze the root cause of failure. Even those cheap bit car, its internal and external fixtures also by the host computer to control. Those luxury cars, only the headlights to be controlled by the computer.
If the car is equipped with daytime running lights Department DRL you must first understand the working principle of these devices. For example, some of the daytime running lights Department prior to engine start, daytime running lights can not be opened; some daytime running lights Department, if the parking brake has  BMW GT1  not been canceled, even if the engine has been started, the daytime running lights still not working properly. If the vehicle is equipped with a light control light (that is, when the outside light dim to a certain extent, the system has automatically turn on the headlights function), may wish to check the photosensitive lights from the weakest to the strongest state, of course, Do not ignore the check automatically turn off the timer. If the system is equipped with a timer, set it to the maximum delay.
If the headlight is damaged, usually by a similar lamp for replacement. Some cars are equipped with high-intensity discharge headlights HID, high-pressure arc discharge generated by the device through its pre-designed electronic system to generate a high-density light source. Note that ordinary quartz - halogen bulbs can not be applied in this. Also, check before headlamps whether cracks headlamps lighting performance and will not affect the surface cracks, but the moisture along the cracks penetrate the fixture, which is bound to reduced lamp life.
The headlight illumination direction calibration should be included in the list of maintenance items In order to ensure the safety of motorists driving the biggest, the headlights must be able to provide good forward lighting for vehicles traveling.
I seize the key, also must not forget that to test other lights Department, such as turn signals, vehicle license plate lamp, showing the wide lights, parking lights, reversing lights and brake lights (including intermediate CHMSL CHMSL). In addition, many of the vehicles will be optional fog lights as standard equipment or popular, fog  lexia 3 pp2000   lamps generally installed in a lower position on the car, so it's easy to damage by stones, its maintenance, in addition to checking the lighting system itself lights crack should not be overlooked