Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Section 437 (Climate Control System - General Information (Specifications - Diagnosis & Testing))
2021 Ford Edge SE, 4WDSECTION Section 437 (Climate Control System - General Information (Specifications - Diagnosis & Testing))
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Description And Operation
- Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) - Component Location
- Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) - Overview
- Climate Control System - Raptor, Vehicles With: Dual Automatic Temperature Control (DATC) - Component Location
- Climate Control System - Raptor, Vehicles With: Dual Automatic Temperature Control (DATC) - Overview
- Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) - System Operation and Component Description
- System Diagram
- Network Message Chart
- The Refrigerant Cycle
- Control System Logic
- A/C Request
- Heating and Ventilation
- Instrument Panel Console Switch Assembly - Auto Start-Stop Deactivation Switch (if equipped)
- Cabin Heater Coolant Pump - vehicles equipped with Auto Start-Stop (if equipped)
- Air Handling
- Auto
- Off
- Max A/C
- Panel
- Panel/Floor
- Floor
- Floor/Defrost
- Max Defrost
- Remote Start - Message Center Set To Auto
- Remote Start - Message Center Set To Last User Settings
- Component Description
- FCIM - Dual Automatic Temperature Control (DATC)
- Blower Motor Control Module
- Compressor Clutch Assembly
- Evaporator Core
- Heater Core
- Climate Control Housing
- Air Distribution Door Actuator
- Air Inlet Door Actuator
- Driver Side Temperature Door Actuator
- Passenger Side Temperature Door Actuator
- Air Conditioning (A/C) Pressure Transducer
- Ambient Air Temperature (AAT) Sensor
- In-Vehicle Temperature And Humidity Sensor
- Autolamp-Sunload Sensor
- Evaporator Temperature Sensor
- Air Discharge Temperature Sensors
- Externally Controlled Variable Displacement Compressor (2.7L EcoBoost, 3.0L Power Stroke Diesel, 3.5L EcoBoost, 5.0L 32V Ti-VCT)
- Fixed Displacement A/C Compressor (3.3L Duratec - V6)
- Condenser
- Internal Heat Exchanger (IHX)
- Receiver Drier
- Refrigerant System Dye
- Service Gauge Port Valves
- Thermostatic Expansion Valve (TXV)
- Climate Control System - Raptor, Vehicles With: Dual Automatic Temperature Control (DATC) - System Operation and Component Description
- System Diagram
- Network Message Chart
- The Refrigerant Cycle
- Control System Logic
- A/C Request
- Heating and Ventilation
- Cabin Heater Coolant Pump
- Air Handling
- Auto
- Off
- Max A/C
- Panel
- Panel/Floor
- Floor
- Floor/Defrost
- Max Defrost
- Remote Start - Message Center Set To Auto
- Remote Start - Message Center Set To Last User Settings
- Component Description
- FCIM - Dual Automatic Temperature Control (DATC)
- Ambient Air Temperature (AAT) Sensor
- Blower Motor Control Module
- Compressor Clutch Assembly
- Evaporator Core
- Heater Core
- Climate Control Housing
- Air Distribution Door Actuator
- Air Inlet Door Actuator
- Driver Side Temperature Door Actuator
- Passenger Side Temperature Door Actuator
- Air Conditioning (A/C) Pressure Transducer
- In-Vehicle Temperature And Humidity Sensor
- Autolamp-Sunload Sensor
- Evaporator Temperature Sensor
- Air Discharge Temperature Sensors
- Externally Controlled Variable Displacement Compressor
- Condenser
- Internal Heat Exchanger (IHX)
- Receiver Drier
- Thermostatic Expansion Valve (TXV)
- Service Gauge Port Valves
- Refrigerant System Dye
- Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) - Component Location
- Climate Control System - Raptor, Vehicles With: Electronic Manual Temperature Control (EMTC) - Component Location
- Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) - Overview
- Climate Control System - Raptor, Vehicles With: Electronic Manual Temperature Control (EMTC) - Overview
- Climate Control System - Raptor, Vehicles With: Electronic Manual Temperature Control (EMTC) - System Operation and Component Description
- System Diagram
- Network Message Chart
- The Refrigerant Cycle
- Control System Logic
- A/C Request
- Heating and Ventilation
- Cabin Heater Coolant Pump
- Air Handling
- Off
- Max A/C
- Panel
- Panel/Floor
- Floor
- Floor/Defrost
- Defrost
- Max Defrost
- Remote Start
- Component Description
- FCIM - Electronic Manual Temperature Control (EMTC)
- Ambient Air Temperature (AAT) Sensor
- Blower Motor Control Module
- Compressor Clutch Assembly
- Evaporator Core
- Heater Core
- Climate Control Housing
- In-Vehicle Temperature And Humidity Sensor
- Air Discharge Temperature Sensors
- Air Distribution Door Actuator
- Air Inlet Door Actuator
- Temperature Door Actuator
- Evaporator Temperature Sensor
- Air Conditioning (A/C) Pressure Transducer
- Externally Controlled Variable Displacement Compressor
- Condenser
- Internal Heat Exchanger (IHX)
- Receiver Drier
- Thermostatic Expansion Valve (TXV)
- Service Gauge Port Valves
- Refrigerant System Dye
- Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) - System Operation and Component Description
- System Diagram
- Network Message Chart
- The Refrigerant Cycle
- Control System Logic
- A/C Request
- Heating and Ventilation
- Instrument Panel Console Switch Assembly - Auto Start-Stop Deactivation Switch (if equipped)
- Cabin Heater Coolant Pump - vehicles equipped with Auto Start-Stop (if equipped)
- Air Handling
- Off
- Max A/C
- Panel
- Panel/Floor
- Floor
- Floor/Defrost
- Defrost
- Max Defrost
- Remote Start
- Component Description
- FCIM - Electronic Manual Temperature Control (EMTC)
- Blower Motor Control Module
- Compressor Clutch Assembly
- Evaporator Core
- Heater Core
- Climate Control Housing
- Air Distribution Door Actuator
- Air Inlet Door Actuator
- Temperature Door Actuator
- Air Conditioning (A/C) Pressure Transducer
- Ambient Air Temperature (AAT) Sensor
- In-Vehicle Temperature And Humidity Sensor
- Evaporator Temperature Sensor
- Air Discharge Temperature Sensors
- Externally Controlled Variable Displacement Compressor (2.7L EcoBoost, 3.0L Power Stroke Diesel, 3.5L EcoBoost, 5.0L 32V Ti-VCT)
- Fixed Displacement A/C Compressor (3.3L Duratec - V6)
- Condenser
- Internal Heat Exchanger (IHX)
- Receiver Drier
- Refrigerant System Dye
- Service Gauge Port Valves
- Thermostatic Expansion Valve (TXV)
- Diagnosis And Testing
- Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC)
- DTC Chart(s)
- Symptom Chart(s)
- Pinpoint Test(s)
- Pinpoint Test A : P0532, P0533
- Pinpoint Test B : P0645, P0646, P0647
- Pinpoint Test C : Unable To Duplicate The Customer Concern And No Diagnostic Trouble Codes (DTCS) Present
- Pinpoint Test D : The Air Inlet Door Is Inoperative
- Pinpoint Test E : Incorrect Or Erratic Direction Of Airflow From Outlets
- Pinpoint Test F : Insufficient, Erratic Or No Heat
- Pinpoint Test G : The A/C (Air Conditioning) Is Inoperative
- Pinpoint Test H : The A/C (Air Conditioning) Is Always On - A/C (Air Conditioning) Mode Always Commanded On
- Pinpoint Test I : The Temperature Control Is Inoperative Or Does Not Operate Correctly - Driver Side
- Pinpoint Test J : The Temperature Control Is Inoperative Or Does Not Operate Correctly - Passenger Side
- Pinpoint Test K : The Blower Motor Is Inoperative
- Pinpoint Test L : The Blower Motor Does Not Operate Correctly
- Pinpoint Test M : Air Discharge Temperature Sensor Circuit Faults
- Pinpoint Test N : B105A:12, B105A:14, B1A61:11, B1A61:15, B1A69:12, B1A69:14
- Pinpoint Test O : B1A63:11, B1A63:15, B1A64:11, B1A64:15
- Pinpoint Test P : B1B71:11, B1B71:15
- Pinpoint Test Q : C1B14:11, C1B14:12
- Pinpoint Test R : P193E
- Pinpoint Test S : Insufficient Heat In Auto Start-Stop Mode Only
- Pinpoint Test T : P06A0
- Pinpoint Test U : The Electric Booster Heater Is Inoperative Or Does Not Operate Correctly
- Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.