Fits: 1999-2003 Mazda Protege 2002-2003 Mazda Protege5 What is an HVAC Blower Motor? The heating system in your vehicle is designed to keep you warm while the temperatures outside are cold, wet and/or windy. The engine cooling system of the vehicle is directly linked to the heating system. If your heating system is not working properly it is important to have it checked out, because your engine cooling system may not be working properly either and an overheated engine can result in engine damage.The HVAC (heating, ventilation, air conditioning) control panel/component in the cabin is the core component of the heating system. .
