Peculiarities of car electrical equipment diagnostics

Peculiarities of car electrical equipment diagnostics

The number of electronic devices and components in cars of all manufacturers is constantly growing. At the same time, new and improved equipment for diagnostics of vehicle electrical equipment is produced. If you have a car that used to have this kind of equipment but is now a pile of junk, turn it in under the program car scrap for money.

For simple auto scanners the difference is minimal – the difference is only in the list of supported vehicles, nothing changes in functionality. For dealership and professional equipment the changes are more noticeable – new components support is introduced, improved tests for systems, etc. are added. All this allows you to turn the scanner into a powerful tool for detecting and correcting errors in electrical equipment.

What kind of tasks do you need a vehicle’s electronic systems diagnostics tool for?

The on-board computer in a modern car independently collects hundreds of different indicators, from the state of individual sensors to data on the speed and mileage of the car. They are stored in the form of codes, for the deciphering of which diagnostic equipment is used. Only a small part of the data is shown to the user by manufacturers on the dashboard in the form of “lights” – when a critical problem appears a check lights up, which says about the necessity of visiting a car service for detailed problem elucidation.

When you visit the service station a specialist connects the scanner to the diagnostic port of your car:

– In newer cars, this is the OBDII standard, regardless of the manufacturer
– Older cars may have several dozens of different connectors.

The scanners themselves can be multimarochim (universal), branded (for cars of a particular brand) and dealer. The latter are mostly presented at branded service stations, and are produced by the car manufacturers themselves. Multimarque models are the most popular because they are suitable for a large number of cars at once.

The most common inexpensive car scanner solves the following tasks:

– viewing information about errors in the system;
– resetting crashes on the dashboard;
– testing of some elements and sensors of the car.

More advanced equipment for car diagnostics and repair also provides:

– managing the electronic unit (ECU) and connecting new components;
– changing vehicle information;
– replacement of the factory parameters for the engine control unit (chip tuning), etc.

Differences between autoscanner and autoadapter

There is a separate category of diagnostic equipment – auto adapters. This is a cable with a USB connector at one end with which a regular laptop with dealer’s software is connected to the diagnostic port of the car. This device has a different functionality – it is necessary to work with the memory of the car, obtain data from it and change them. In some cases, such equipment is also used for diagnostics of electrical equipment of the car.

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