New generation vehicles are full of electronic boxes. These enclosures are interconnected and share information from the different electrical systems and/or electronic systems of the vehicle. Several functions of the vehicle are directly dependent on the proper functioning of these boxes.



The computers are equipped with a self-diagnosis system, they test each element and record all the anomalies detected, even the sporadic ones.

Depending on the encountered anomaly, the computer lights or doesn’t light the led located in your meter connected to the failing system.

This is why it is important to read, analyze and then erase these memories (even if no led is on) at each examination in order to anticipate a potential failure.

We are trained and equipped with multi-brand diagnostic tools that permit us to read the electronic boxes of all models.

We also possess interfaces specific to several brands:

–          BMW

–          PEUGEOT

–          CITROEN

–          RENAULT

–          SEAT

–          AUDI

–          SKODA

–          MERCEDES

–          VOLKSWAGEN

–          BENTLEY

–          PORSCHE



These interfaces allow us to perform some tests and actions that the said “standard” or “all brands” diagnostic equipment does not.

In this way we can “identify” the problems more effectively and limit blind repairs.



Since the end of the 1990s, the introduction of electronics helped improve the performance of vehicles in terms of safety, comfort and consumption.

The failure of one piece connected to one of the calculators (computers) can cause comfort problems, overconsumption, lighting LEDs on the dashboard or even a broken engine.

The risks incurred:

Alteration of the automotive comfort (air conditioning…).

Over-consumption of fuel.

Lack of power of the vehicle.

Failure of a security system (ABS, ESP, Airbags, pretensions…).

Deterioration of other mechanical elements (ex: a particle filter or a mouth catalyst may break a turbocharger if we don’t intervene)

Immobilization of the vehicle.



From the car’s computer, what is multiplexing?

Multiplexing is the technology used in computers since a very long time ago. It was introduced in cars at the end of the 1990s.

Multiplexing reduces the number of sensors and beams allowing several boxes to use the information in a single sensor.

The failure of a sensor can then have consequences, unexpected and difficult to explain.


For example:

The volume of your car radio varies randomly and the engine management light stays on in the dashboard. The speed sensor of the car useful to your engine management and to your system permitting the adjustment of the volume of the radio depending on the speed of the vehicle is defective.