At present, cars are very popular in China. As time goes by, people become more and more familiar with cars. Not only in use, some simple daily maintenance can be done by themselves, such as adding some wiper water, inflating the tires, etc. It is no longer a problem. Some fuses will be replaced. Of course, more hands-on basic maintenance can be done by themselves.
But at present, new energy vehicles have been gradually popularized. New energy vehicles generally include pure electric vehicles and hybrid vehicles. They all have a common feature. The battery pack with high voltage is generally above 200 volts. Many car owners have this problem. Under such high voltage, do all problems on the vehicle need to be repaired at the 4S store?
In fact, even the maintenance technicians in the 4S store can't repair new energy vehicles at will. They need to hold an electrician's certificate and have the right to repair this type of vehicle only after passing the special training for this type of vehicle. Of course, in addition to the maintenance authority, the electrician protective suit and special tools and equipment are also required. Because when repairing high-voltage vehicles, it is not possible to repair them directly like traditional vehicles, and protection must be done first to prevent accidental electric shock.
Seen from the above, it is really impossible to repair without permission. Improper handling may lead to the risk of electric shock, but this does not mean that all systems on the car cannot contact. In fact, the high-voltage part of the car is mainly on the power system, which can be judged by the color and thickness of the wires. Generally, red means that there is electricity at all times, and orange means that there is electricity during operation, Moreover, the wires of these two colors are relatively thick, and these are high-voltage parts that cannot be repaired without permission.
In addition to the high-voltage part, other low-voltage appliances are still popular. For example, the systems in the cab are basically low-voltage, so there is no need to worry about electric shock during maintenance. Maybe the maintenance of the system is too professional. What can the owners do? Inflate the tire, add a wiper, change the wiper blade, or even change the fuse of the cigarette lighter. It is the same DIY as before. Even for high voltage vehicles, the control system is also low voltage. When the low-voltage battery is dead, the vehicle cannot be driven, and power on rescue can still be carried out.
In conclusion, the high-voltage part of new energy vehicles cannot be repaired without permission. Professional training and maintenance technicians with electrician certificates are required to repair the vehicles. If any problems are found, they should report for repair in time. Orange and red wires should not be touched! The routine maintenance, such as tire inflation, adding wipers and changing wiper blades, can be done by DIY. Of course, don't forget to read the vehicle manual. It is definitely a DIY auxiliary artifact. If you have any experience with DIY maintenance of new energy vehicles, you can also share it with everyone!
