*** I am having the same issue Xulfiqar bhai. Car starts vibration when car stops on D gear with AC. I am having 2007 Vitz with not its genuine AC. Should i connect ECU AC1 pin with A/C amplifier with the wire. will it solve the issue? Please guide me, as i am not in the position to spend 25000 for genuine ac with sensor. right now my fan is direct and making too much noise too. Thanks in advance.