Car Electrical Failure: How To Detect And Remedy It?

In addition to mechanical problems that can occur suddenly in a vehicle, electrical faults are also a real headache for many drivers. This is not really surprising, given the increased demands on electrically operated devices. However, if you have some knowledge of electrical problems, you can solve them yourself. Read this article to find out more!

What does an electrical failure of a car mean?


Generally speaking, a vehicle’s electrical failure covers several malfunctions, including thermal and electrical failure itself. For example, the vehicle’s lighting and lights may suddenly stop working. Many automatic devices can be affected by electrical failure: windows, remote locking, mirror control, sensors, etc.

But electrical failure can also affect the dashboard of your car. You may not be able to access the car’s controls at all. In addition, this problem can also affect the engine, which ensures that your vehicle can be started unless there is ventilation.

Basically, the electrical system should always be checked, as it is the key to the proper functioning of your vehicle’s automatic equipment.

What are the common electrical faults?

The severity of an electrical fault varies according to the importance of the part affected. The main devices that are often affected by this problem are:

  • The alternator or starter motor: a broken electrical wire in this area prevents the vehicle from starting.
  • The central locking system: some vehicles have centralized doors that can only be operated with the help of electrical power. As soon as a fault occurs, this functionality is interrupted.
  • The battery: Powered by the alternator, the battery can be quickly discharged when the headlights are on all night. It can also fail if not used for a long period of time.
  • The different parts that make up an electric car: As the name suggests, this type of car draws its energy from electrical power. This means that practically all the parts of which it is equipped can be subject to an electrical breakdown.

How to detect an electrical fault quickly?

In general, it is easy to spot an electrical fault, which means that you are perfectly capable of repairing your vehicle yourself. However, if you feel that it is better to seek professional help, you can call in a specialist. You can get advice on how to properly maintain your car’s electrical system.

Check the battery

If you notice that the headlights are getting dimmer and dimmer or that light on the dashboard is coming on, this means that there is a fault in the battery. It is then necessary to recharge it. To do this, you can connect it to another vehicle’s battery. If the battery cannot be recharged, it is necessary to push your car or to make it accelerate on a slight slope by putting it in second gear. If neither of these solutions is possible, check the battery terminals for moisture. Oxidation may be present. To remove the terminals, use sandpaper or a wire brush. Then apply a thick layer of grease and try to start your car.

Checking the condition of the central locking system

To detect an electrical fault in the central locking system, it is necessary to patch up the circuit boards. This is a more complex repair. If you do not have the knowledge to repair the electrical system, it is better to leave the work to a professional.

Inspecting the electric car


An electric vehicle has a large number of parts that work through the use of technology. This means that electrical faults are more common. As the devices are often complex, the intervention of an expert in the field is strongly recommended to avoid any risk of aggravating the breakdown.

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