Dexterity

Please what might be the possible cause of AC button continuous blinking when you put the ac on. 2012 Toyota Highlander. This started by noise from the clutch on the compressor. It has however been replaced. The AC relay has also been checked and replaced. Yet the light still blinks. And compressor not working. It will pick and after 3 seconds it will start blinking. Please what else can be done to fix this problem