Heat not working, does it get a signal from any computer in the car?

The coolant in level, temperature goes normal and heater core hoses get hot, so not clogged up. I replaced the electronic climate controls and all the vacuum actuators are working but the electric one for the cold to hot blend door is not. I unplugged it without taking out the actuator and plugged a new one to make sure, before taking the dash out but the new isn't working either. Do they get a signal for any computer in the car?