JAC Air Conditioning Controller 91720-Y4010XH Stable Climate Control Solution for JAC Vehicles The JAC Air Conditioning Controller 91720-Y4010XH is a key electronic control component responsible for managing air conditioning temperature, airflow mode, and fan speed in JAC vehicles.A reliable air conditioning controller directly affects driving comfort, energy efficiency, and overall user experience—especially in regions with extreme temperatures. Taizhou CINA Auto …