brain doesn't read air conditioner

Hello, the air conditioner is working (there is gas blowing, but there is no cooling), but the air conditioner does not turn on because the brain does not read. Can the brain problem be fixed or can I add a button to activate the air conditioner, thanks

In a 307 I used years ago, there was a button under the steering wheel like this, going to the brain for air conditioning. later, when there was another malfunction related to the brain, I gave it to the repair. what you say can be done.

Thank you button. It works fine for now