Over time, with the increase in comfort- and convenience-related features.

For some car manufacturers, it became necessary to create a second ECU to support the central unit.

This second ECU is commonly known as the comfort unit and, in the cars that have one, it is in charge of controlling the climate control system, tyre pressure detection, windscreen wipers, lights and central locking.

So a malfunction of this unit can seriously affect the behaviour of your vehicle, even, in extreme cases, preventing it from starting.