seicento sporting electrical direction failure

Hello everyone, I have a fiat seiciente of the year 2000 1.1 gasoline and the problem is that when I turn left the electrical address already works the right does not work. In the switchboard there are no noises. There are no fault lights. and proven that the turn of turn if I give it with your finger the steering wheel rotates only in the two senses left and right. My question is: Can it be a address switchboard that is under the glove compartment or are there any other element that may be causing the failure?

An ex officio partner told me that there are engines that to one side have strength and towards the other turn they lose strength.

In forums it is a common issue but nobody says that solution has.

Solved, in several forums and seen that a man fixed them for € 200. The failure is nothing. It is only to calibrate the rotation sensor. Wear two screws and the piece slides. Loosses a little, in my case, very little times and start if you don't go well contact and another. until you notice that it is equal. soft to left already right.
I hope to help other foreros.