  In modern motor vehicles, particularly cars, a large number of use of high technology and its development direction is mechatronics. The development of micro-electronics of the car to promote the development of electronic control, vehicle safer, more economical, better handling, the car's performance to a higher level.
  At the same time, automotive repair and maintenance work has become both easier and more difficult. Because the car is usually equipped with an electronic self-test system, a system malfunction, it can automatically remind drivers of the timely repair, this can be nipped in the bud, with special equipment can be quickly detected, so it make it easier for maintenance work . On the other hand, it requires maintenance workers must have a corresponding high-tech knowledge, and dedicated detection equipment, otherwise no way to gain the upper hand. From this point of view, maintenance of a modern car the more difficult it is.
  electrical part of the maintenance
  traditional part of the automotive electrical, mainly batteries, spark plugs, generators and other parts of the maintenance.
  battery as a result are now widely used lead-acid batteries, liquid sulfuric acid spill easily, and there is a strong corrosive acid, therefore, should be clean in time, bearing in mind the non-contact with eyes and skin. Sulfuric acid contained in the water will evaporate, when the acid level at the top surface close to stereotype, it is necessary to add distilled water. Of course, a lot of cars have already adopted the maintenance-free batteries, because the whole enclosed in plastic case, the reduction of the maintenance workload.
  not battery a long time, it will slowly self-discharge, until the end of life. Therefore, at a certain period of time should be to start a car, to the battery. Another option is to two batteries pull down electrode, it is necessary to pay attention to Unplug from the column electrode positive and negative electrodes two line, first unplug the negative line (-), or unloaded and the vehicle chassis anode connection . And then pulling with a positive sign (x) the other end.
  batteries have a certain life, to a certain period of time to be replaced. Replacement to follow the same order, but the electrode接上去line, the order is contrary, to take positive, negative and then followed.
  batteries with electricity can be reflected in the dashboard. When the ammeter pointer shows has insufficient power to charge a timely manner. Method is very simple, that is, slam the clutch, the state stands in the car to start the engine, when the engine driven generator will recharge the batteries. If you use excessive engine will not start, and then have to go to auto repair factory charge with charger. Sometimes found in the way electricity is insufficient, the engine also can not start off as a temporary measure, but it can help to other vehicles, using their vehicles to charge the battery: the two batteries connected to the anode and cathode, anode and cathode connected. Of course, this is only an expedient measure.

  generators are generally not easy to damage, mainly to carry out regular checks between the generator and the engine belt tightness. Loose belt will slip, caused by generators does not change; In addition, the generator is to check the two carbon brushes, to a certain degree of wear and tear to be replaced.
  not clean spark plugs, fuel will gradually in the spark plug electrode tip between the two accumulated coke or oil residue, so that the spark between two electrodes reduced engine output power will drop. Therefore, after a period of time to use the spark plug removed, the removal of accumulated dirt above. In addition, it should be in accordance with the provisions of Statement on a regular basis to replace.
  fuse to protect the car, so that electrical lines are not due to electrical failure of electrical components burned, the car has a fuse box, the internal fuse each have a corresponding and connected to electrical lines. Thus, in a certain part of electrical failure, it must first check whether the fuse off. If broken, it is necessary to replace the fuse. If re-blown, it would show that the system has a short circuit or other damage, must be immediately sent to auto repair factory overhaul. At the same time, attention should be paid to fuse the various systems to allow the amount of current is different when the replacement must be the same specifications. Experienced drivers are usually in the car with some type of fuse corresponding to prepare for any eventuality at the time of need. Similarly, if traffic often at night, put on some of the bulbs, sometimes also useful.
  electronic control system fault diagnosis
  Currently, almost all Chinese-made cars used an electronic control system, all the more advanced preparation, such as: electronic injection engine ABS, airbags, cruise control and so on through the computer control system. When these electronic devices of a certain part of the problem is to look at not only appearance in the same manner, car manufacturers in order to facilitate the use and maintenance of users, generally provided by the fault diagnosis of electronic devices. Roughly divided into two parts: First, a warning light, mounted on the dashboard to warn the driver, suggesting that he has reached a dangerous part of the interface must be timely to add or repair; another part of the fault has occurred in how to identify it Fault location, fault component of the performance of test parameters in order to determine whether it needs to be replaced. Thus, in particular, set up a socket fault diagnosis, in a hidden location, only diagnosed when in use it.
  identify warning lights
  vehicle in normal driving, the warning buzzer or light is called, is to warn you to be this part of the failure, the need to add or repair a timely manner, but the car still running a short period of time. Under normal circumstances, auto start, open the ignition switch, the instructions warning lights, when the first computer-controlled self-test system, if the system to normal, warning lights on the out; If a warning light to turn on the system that have fault.
  open engine fault warning lights warning lights when the ignition switch light, start the engine out after that, at this time that the function of a normal engine. Otherwise, it said the engine control system malfunction. If the lights flicker, then a catalytic converter may be damaged, if it continues to reduce the speed of traffic should be required to send timely maintenance repair shop.