Heater does not blow hot air on passenger side

Hello, I'm Danny.

It sounds like you are having an issue with the mode-blend door actuator. It is a small small electric motor that opens a door to send air flow throughout the HVAC unit to direct airflow. Here is a tutorial showing what is involved for its replacement:

https://www.2carpros.com/articles/replace-blend-door-motor

I've attached picture steps below for your vehicle. This is based on the automatic HVAC system since you didn't specify in in your post. I've also included the steps to recalibrate the actuator after installation. Hope this helps and thanks for using 2CarPros.

Do the motors control the same functions in 2007 as 2009 non auto system?

Hello again.

There are many different variables. Can you please provide me with your VIN number (vehicle identification number) and I will get back to you with the proper information. Hope this helps and thanks again for using 2CarPros.

Danny-