For car owners who want to fix their car’s air conditioning system, having a wiring diagram is a must. With the right wiring diagram, you can easily diagnose and fix any issues with the AC system. In this article, we will provide a comprehensive guide on the 2011 Ford Fusion AC wiring diagram.
What is a Wiring Diagram?
A wiring diagram is a visual representation of the electrical system in a car. It provides a detailed view of each component and their connections. With a wiring diagram, you can easily identify the location of each component and the path of each wire.
Having a wiring diagram is crucial when attempting to fix any issues with the AC system. It helps you identify which component is malfunctioning and allows you to trace the path of the wire to find any breaks or shorts.
Overview of the 2011 Ford Fusion AC System
The 2011 Ford Fusion AC system consists of several components, including the compressor, condenser, evaporator, expansion valve, and receiver-drier. The compressor is responsible for compressing the refrigerant and transferring it to the condenser. The condenser then releases the heat from the refrigerant, which is then transferred to the evaporator. The expansion valve regulates the flow of refrigerant to the evaporator, and the receiver-drier removes any moisture from the refrigerant.
The AC system also includes several switches and sensors, including the low-pressure switch, high-pressure switch, temperature sensor, and blower motor resistor. These components help regulate the AC system and ensure it is functioning correctly.
Wiring Diagram for the 2011 Ford Fusion AC System
The wiring diagram for the 2011 Ford Fusion AC system is divided into several sections, including the engine compartment fuse box, smart junction box, and HVAC module. Each section provides a detailed view of each component and their connections.
Engine Compartment Fuse Box Diagram
| Component | Pin | Wire Color | Description |
|---|---|---|---|
| AC Compressor Clutch Relay | 30 | OG | Battery Power |
| 87A | PK/LB | Not Used | |
| 86 | GY/YE | Control Relay Circuit | |
| 85 | O/W | Ground |
The engine compartment fuse box diagram provides a detailed view of the AC compressor clutch relay and its connections. The AC compressor clutch relay is responsible for engaging and disengaging the AC compressor.
Smart Junction Box Diagram
| Component | Pin | Wire Color | Description |
|---|---|---|---|
| Blower Motor Relay | 30 | GY | Battery Power |
| 87 | V | Blower Motor Power | |
| 86 | GY/RD | Control Relay Circuit | |
| 85 | O/W | Ground |
The smart junction box diagram provides a detailed view of the blower motor relay and its connections. The blower motor relay is responsible for providing power to the blower motor, which circulates air through the AC system.
HVAC Module Diagram
| Component | Pin | Wire Color | Description |
|---|---|---|---|
| Evaporator Temperature Sensor | Signal | GY/LB | Evaporator Temperature Signal |
| Ground | GY | Evaporator Temperature Sensor Ground | |
| Pressure Transducer | Signal | GY/LB | Pressure Transducer Signal |
| Ground | GY | Pressure Transducer Ground |
The HVAC module diagram provides a detailed view of the evaporator temperature sensor and pressure transducer and their connections. The evaporator temperature sensor and pressure transducer help regulate the AC system and ensure it is functioning correctly.
FAQ
What should I do if my AC system is not working?
If your AC system is not working, you should first check the fuses and relays in the engine compartment fuse box and smart junction box. If the fuses and relays are okay, you should check the refrigerant level and pressure. If the refrigerant level and pressure are okay, you should check the AC compressor, condenser, evaporator, expansion valve, and receiver-drier for any issues.
What is the AC compressor clutch relay?
The AC compressor clutch relay is responsible for engaging and disengaging the AC compressor. It receives a signal from the HVAC module and provides power to the AC compressor.
What is the blower motor relay?
The blower motor relay is responsible for providing power to the blower motor, which circulates air through the AC system. It receives a signal from the HVAC module and provides power to the blower motor.
What is the evaporator temperature sensor?
The evaporator temperature sensor is responsible for measuring the temperature of the evaporator. It provides a signal to the HVAC module, which regulates the flow of refrigerant to the evaporator.
What is the pressure transducer?
The pressure transducer is responsible for measuring the pressure in the AC system. It provides a signal to the HVAC module, which regulates the flow of refrigerant to maintain the correct pressure.
