Section 1062 (HVAC Control System - General Information)
WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Description And Operation
- Diagnosis And Testing
- Climate Control System
- Notes
- Special Tool(s)
- Vacuum Schematic - Manual Climate Control System
- Vacuum Schematic - Dual Automatic Temperature Control System
- Inspection and Verification
- Dual Automatic Temperature Control Module - Diagnostic Methods
- Diagnostic Trouble Code Index
- Symptom Chart
- Connector Circuit Reference
- DATC Module C228a
- DATC Module C228b
- In-Vehicle Temperature Sensor C233
- Ambient Air Temperature Sensor C132
- Front Blower Motor Speed Control Module C271
- ATC Solenoid and Manifold C2093
- Function Selector Switch C294a - Manual Climate Control
- Function Selector Switch C294b - Manual Climate Control
- Function Selector Switch C294c - Manual Climate Control
- Temperature Blend Door Actuator C289 - Manual Climate Control
- Blower Motor Resistor C293
- Temperature Blend Door Actuator (LH) C2091 - DATC
- Temperature Blend Door Actuator (RH) C2092 - DATC
- Solar Radiation Sensor C286
- A/C Compressor Clutch Field Coil C1110
- Powertrain Control Module (PCM) C175b
- Auxiliary Mode Door Actuator C3020
- Auxiliary Blower Motor Resistor C3022
- Blower Motor C2004 - Manual Climate Control
- Blower Motor C2006 - DATC
- Auxiliary Blower Motor C3021
- Front Auxiliary Control C938a
- Rear Auxiliary Control C940a
- Front Auxiliary Blower Motor Switch C938b
- Rear Auxiliary Blower Motor Switch C940b
- Auxiliary Temperature Blend Door Actuator C3019
- Auxiliary A/C Relay
- Blower Motor Relay - DATC
- Blower Motor Relay - Manual Climate Control
- High Speed Blower Motor Relay - Manual Climate Control
- A/C Compressor Clutch Relay
- A/C High Pressure Switch C1078
- A/C Cycling Switch C130
- Pinpoint Test A: DTC B2266 OR DTC B2267 - Blend Door Failure or Short
- Pinpoint Test B: DTC B1251 OR DTC 1253 - A/C In-vehicle Temperature Sensor Open Circuit or Short to Ground
- Pinpoint Test C: DTC B1255 OR DTC B1257 - A/C Ambient Temperature Sensor Open Circuit or Short to Ground
- Pinpoint Test D: DTC B1259 OR DTC B1261 - Solar Radiation Sensor Open Circuit or Short to Ground
- Pinpoint Test E: DTC B2268 OR DTC B2269 - Steering Wheel Control Switch Open Circuit or Short to Ground
- Pinpoint Test F: No Communication With The Dual Automatic Temperature Control (DATC) Module
- Pinpoint Test G: The DATC System is Inoperative, Intermittent or Incorrect Operation
- Pinpoint Test H: Incorrect/Erratic Direction of Airflow From Outlet(s) - Manual Climate Control
- Pinpoint Test I: Incorrect/Erratic Direction of Airflow From Outlet(s) - DATC
- Pinpoint Test J: Insufficient, Erratic or No Heat
- Pinpoint Test K: The A/C Does Not Operate/Does Not Operate Correctly
- Pinpoint Test L: The A/C Is Always On
- Pinpoint Test M: The Temperature Control is Inoperative/Does Not Operate Correctly - Manual Climate Control
- Pinpoint Test N: The Blower Motor Is Inoperative - Manual Climate Control
- Pinpoint Test O: The Blower Motor Does Not Operate Correctly-Manual Climate Control
- Pinpoint Test P: The Blower Motor Is Inoperative - DATC
- Pinpoint Test Q: The Blower Motor Does Not Operate Correctly - DATC
- Pinpoint Test R: The Auxiliary Blower Motor Is Inoperative
- Pinpoint Test S: The Auxiliary Blower Motor Does Not Operate Correctly Using The Front Auxiliary Climate Controls
- Pinpoint Test T: The Auxiliary Blower Motor Does Not Operate Correctly Using The Rear Auxiliary Climate Controls
- Pinpoint Test U: The Panel/Floor Control Is Inoperative Using The Front Auxiliary Climate Controls
- Pinpoint Test V: The Panel/Floor Control Is Inoperative Using The Rear Auxiliary Climate Controls
- Pinpoint Test W: The Temperature Control Is Inoperative Using The Front Auxiliary Climate Controls
- Pinpoint Test X: The Temperature Control Is Inoperative Using The Rear Auxiliary Climate Controls
- Pinpoint Test Y: The Panel/Floor and Cool/Warm Controls Are Inoperative Using The Front Auxiliary Climate Controls
- Pinpoint Test Z: The Panel/Floor and Cool/Warm Controls Are Inoperative Using The Rear Auxiliary Climate Controls
- Pinpoint Test AA: Insufficient Air Conditioning (A/C) Cooling
- Component Tests
- Front and Auxiliary Blower Motor Resistor
- ATC Solenoid and Manifold
- Ambient Temperature Sensor
- In-Vehicle Temperature Sensor
- Function Selector Switch
- Front Auxiliary Climate Control Assembly
- Rear Auxiliary Climate Control Assembly
- Heater Core
- Heater Core-Plugged
- Heater Core - Pressure Test
- Heater Core - Bench Test
- A/C Evaporator/Condenser Core - On Vehicle Leak Test
- A/C Compressor - External Leak Test
- Climate Control System
- General Procedures
- Air Conditioning (A/C) System Check - Retail Procedure
- Spring Lock Coupling
- Air Conditioning Line (Peanut) Fitting
- Refrigerant System Tests
- Air Conditioning (A/C) Clutch Air Gap Adjustment
- Electronic Leak Detection
- Fluorescent Dye Leak Detection
- Air Conditioning (A/C) System Flushing
- Air Conditioning (A/C) System Recovery, Evacuation and Charging
- Refrigerant System Filtering Following Air Conditioning (A/C) Compressor Installation
- Refrigerant Oil Adding
- Refrigerant Identification Testing
- Vacuum Hose Repair - Mini-Tube
- Air Conditioning (A/C) Odor Treatment