Car & Vehicle Electronics

WHAT IS ELECTRONIC DIAGNOSTICS?

Nowadays, it is almost impossible to look for a car breakdown blindly, as it was twenty years ago. Cars have evolved considerably, mechanics have almost disappeared, leaving only room for electronics and technological tools. The dashboards are now from the latest technologies as well as certain parts of the car (handbrake, driving assistance, etc.). To check these modern vehicles, the mechanics had to equip themselves with electronic diagnostic devices, making it possible to detect the slightest malfunction at a glance. Avatacar tells you more about this essential tool.

WHAT IS ELECTRONIC DIAGNOSTICS?

To keep new cars running smoothly, manufacturers use new technology called multiplexing . It ensures good communication between the different computers that manage the electronic elements of the car (such as safety equipment, driving assistance, and comfort).

The role of multiplexing is to analyze the working condition of these computers. They transmit the information to the mechanic via a single physical medium: the electronic diagnostic device (or diagnostic tester of the control units). The feedback thus collected makes it possible to obtain a global diagnosis of the state of the car. The garage owner will be able to make the necessary repairs/checkpoints and reset all computers while checking.

HOW DOES THE ELECTRONIC DIAGNOSTIC DEVICE WORK?

Principle: If one of the electronic elements malfunctions, the associated computer will emit a signal. The electronic diagnostic device perceives and transcribes it. The garage owner is thus alerted and can carry out the control/change on the party concerned.

Electronic diagnostics has revolutionized the management of electronic equipment and completely upset automobile maintenance. In fact, since its arrival, the cars have been fitted with electronic diagnostic sockets allowing access to the memory of all on-board computers and establishing a complete diagnosis of the vehicle’s health.

This control is generally carried out during the revision. The electronic diagnostic device has the ability to detect the slightest anomaly in the system, even if no indicator has lit on the dashboard before. The technician will then only have to carry out the interventions necessary to resolve each problem.

WHAT ARE THE CHECKPOINTS FOR ELECTRONIC DIAGNOSTICS?

Apart from periodic maintenance (or overhaul) visits, the electronic diagnostic device is essential for:

  • The history of vehicle malfunctions (or errors);
  • Reset the maintenance indicator;
  • Reset the electronic valve sensors;
  • Set the set pressures when mounting snow tires (on vehicles fitted with electronic valves);
  • Reprogram computers (or computers) after replacing or servicing technical parts such as the battery or the particle filter (FAP);
  • Replace the brake fluid completely (on all vehicles fitted with hydraulic blocks);
  • Change the electric parking brake (FSE) safely.

Showing 1–12 of 19 results