Air conditioner doesn't emit cool air and phone makes beeping sound

Hello, This is likely the telephone control module in the trunk. They do fail, and the wiring for the vehicle is now 15 years old. Ask if there is evidence of water intrusion into the cavity which contains the control module, as this could indicate likelihood of future failure. As for the air conditioner, there are other places where the phone and air conditioning systems will cross paths, but the likelihood of the two being related is probably slim. It seems more likely that the air conditioner has a leak or faulty component.