Section 340 (HVAC Control System)
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Description And Operation
- Climate Control System
- Climate Control System Operation
- System Airflow Description - EMTC
- System Airflow Description - EATC
- Air Distribution
- Air Conditioning
- Notes
- A/C Compressor And Clutch Assembly
- A/C Compressor Clutch Assembly
- A/C Compressor Pressure Relief Valve
- Condenser Core
- Refrigerant Lines
- Evaporator Core
- Evaporator Core Orifice Tube
- Suction Accumulator
- Air Conditioning (A/C) Cycling Switch
- Pressure Transducer
- Spring Lock Coupling
- Peanut Fitting
- Tube-O Fitting
- Refrigerant System Dye
- Auxiliary Climate Control
- Control Components
- Diagnosis And Testing
- Climate Control System
- Notes
- Special Tool(s)
- Inspection And Verification
- Electronic Automatic Temperature Control Module - Diagnostic Methods
- Diagnostic Trouble Code Index
- Symptom Chart
- Connector Circuit Reference
- EATC Module C228A / EMTC Module C294A
- EATC Module C228b
- Solar Radiation Sensor C286
- In-Vehicle Temperature Sensor C233
- Blower Motor Speed Control Module C271
- Blower Motor Switch C294b - Manual Climate Control
- Blower Motor Resistor C293
- LH Temperature Blend Door Actuator C2091
- RH Temperature Blend Door Actuator C2092
- Air Inlet Actuator C289
- Floor/Defrost/Panel Actuator C2278
- A/C Compressor Clutch Field Coil C100
- Blower Motor C2004
- Blower Motor Relay
- A/C Compressor Clutch Relay
- A/C Pressure Transducer C1078
- A/C Cycling Switch C130
- Auxiliary Blower Motor Relay
- Auxiliary Blower Motor Speed Relay 1
- Auxiliary Blower Motor Speed Relay 2
- Blower Motor C3021
- Auxiliary Blower Motor Resistor C3022
- Auxiliary Temperature Blend Door Actuator C3004
- Auxiliary Mode Door Actuator C3044
- Auxiliary Climate Control C9025
- Powertrain Control Module C175
- Smart Junction Box C2280a
- Smart Junction Box C2280b
- Smart Junction Box C2280c
- Smart Junction Box C2280d
- Smart Junction Box C2280f
- Pinpoint Test A: DTC B1251 OR DTC B1253 - A/C In-Vehicle Temperature Sensor Open Circuit or Short to Ground
- Pinpoint Test B: DTC B2796, DTC B2795, DTC B2426 or DTC B2427 - Solar Radiation Sensor Open Circuit or Short to Ground
- Pinpoint Test C: DTC B1242 Air Inlet Door Failure
- Pinpoint Test D: DTC B1263 Mode Door Failure / Incorrect/Erratic Direction of Airflow From Outlet(s)
- Pinpoint Test E: No Communication With The Electronic Automatic Temperature Control (EATC) Module
- Pinpoint Test F: The EATC System Is Inoperative, Intermittent Or Incorrect Operation
- Pinpoint Test G: Insufficient, Erratic or No Heat
- Pinpoint Test H: The A/C Does Not Operate/Does Not Operate Correctly
- Pinpoint Test I: The Air Conditioning (A/C) Is Always On
- Pinpoint Test J: DTC B2266 or B2267: Temperature Blend Door Open/Short to Ground / Temperature Control Is Inoperative/Does Not Operate Correctly
- Pinpoint Test K: The Blower Motor Is Inoperative - EMTC
- Pinpoint Test L: The Blower Motor Does Not Operate Correctly - EMTC
- Pinpoint Test M: The Blower Motor Is Inoperative - EATC
- Pinpoint Test N: The Blower Motor Does Not Operate Correctly - EATC
- Pinpoint Test O: The Auxiliary Blower Motor Is Inoperative
- Pinpoint Test P: The Auxiliary Blower Motor Does Not Operate Correctly
- Pinpoint Test Q: The Auxiliary Temperature Control Only Is Inoperative/Does Not Operate Correctly
- Pinpoint Test R: The Auxiliary Panel/Floor Control Only Is Inoperative/Does Not Operate Correctly
- Pinpoint Test S: The Auxiliary Temperature and Panel/Floor Control Is Inoperative/Does Not Operate Correctly
- Component Tests
- Climate Control System
- General Procedures
- Air Conditioning (A/C) System Check - Retail Procedure
- Spring Lock Coupling
- Air Conditioning Line (Peanut) Fitting
- Heater Hose Coupling
- Refrigerant System Tests
- A/C Clutch Air Gap Adjustment
- Electronic Leak Detection
- Fluorescent Dye Leak Detection
- Air Conditioning (A/C) System Recovery, Evacuation and Charging
- Air Conditioning (A/C) System Flushing
- Refrigerant System Filtering Following Air Conditioning (A/C) Compressor Installation
- Refrigerant Oil Adding
- Refrigerant Identification Testing
- Removal And Installation
- Plenum Chamber, Assembly And Components
- Blower Motor - Front
- Blower Motor - Auxiliary
- Heater Core - Front
- Notes
- Item 6: Storage Console Removal Note
- Item 7: Upper Instrument Panel Finish Panel Removal Note
- Item 9: Instrument Panel Bolt Removal Note
- Item 10: Instrument Panel Bolt Removal Note
- Item 13: Instrument Panel Support Brace Bolt Removal Note
- Item 15: Instrument Panel Bolt Removal Note
- Item 16: Instrument Panel Removal Note
- Item 23: Wire Harness Removal Note
- Heater Core - Auxiliary
- Heater Core And Evaporator Core Housing, Assembly And Components
- Air Conditioning (A/C) Compressor
- Air Conditioning (A/C) Compressor Shaft Seal
- Evaporator Core Orifice
- Suction Accumulator
- Condenser Core
- Compressor Manifold And Tube Assembly
- Condenser To Evaporator Line
- Blower Motor Resistor - Front
- Blower Motor Resistor - Auxiliary
- Auxiliary Climate Control Housing, Assembly And Components
- Auxiliary Heater Outlet And Inlet Line
- Auxiliary Evaporator Outlet And Inlet Line
- Climate Control Assembly
- Blower Motor Speed Control
- In-Vehicle Temperature Sensor
- Temperature Blend Door Actuator - LH
- Temperature Blend Door Actuator - RH
- Mode Door Actuator - Air Inlet Door
- Mode Door Actuator - Defrost/Panel/Floor Door