Here is a typical schematic diagram of the 2002 Mazda Protege . The HVAC system consists of climate control unit, air intake actuator, evaporator temperature sensor, A/C amplifier, refrigerant pressure switch, PCM, A/C switch, heater switch, blower relay and blower motor, resistor, magnetic clutch, condenser fan relay, rear window defroster relay, and panel light control switch.

Mazda Protege HVAC System Wiring Diagram

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