Where is the heater control valve on a 2006 Chrysler Pacifica?

The heater control valve on a 2006 Chrysler Pacifica is typically located near the firewall, on the passenger side of the engine compartment. It is connected to the heater hoses and regulates the flow of coolant to the heater core. To access it, you may need to remove some components for better visibility and reach. Always consult the vehicle's service manual for specific instructions and safety precautions.