Section 1509 (HVAC Climate Control System - General Information & Diagnostics)
WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Description And Operation
- Diagnostic Tests
- Climate Control System
- Notes
- Principles of Operation
- Compressor Anti-Slugging Strategy
- The Refrigerant Cycle
- Vacuum System
- Inspection and Verification
- HVAC Module Self-Test
- HVAC Module DTC Chart
- Symptom Chart - Climate Control Systems
- Symptom Chart - Noise, Vibration and Harshness (NVH)
- Pinpoint Tests
- Notes
- Pinpoint Test A: DTC B1249 - Blend Door Failure
- Pinpoint Test B: DTC B1251 or B1253 - In-Vehicle Temperature Sensor Open Circuit or Short to Ground
- Pinpoint Test C: DTC B1255 or B1257 - Ambient Temperature Sensor Open Circuit or Short to Ground
- Pinpoint Test D: DTC B1259 or B1261 - Solar Radiation Sensor Circuit Open or Short to Ground
- Pinpoint Test E: The EATC System is Inoperative, Intermittent or Incorrect Operation
- Pinpoint Test F: Incorrect/Erratic Direction of Airflow from Outlets - Manual Climate Control
- Pinpoint Test G: Incorrect/Erratic Direction of Airflow from Outlets - EATC
- Pinpoint Test H: Insufficient, Erratic or No Heat
- Pinpoint Test I: The Air Conditioning (A/C) is Inoperative/Does Not Operate Correctly
- Pinpoint Test J: The Air Conditioning (A/C) is Always On
- Pinpoint Test K: Temperature Control is Inoperative/Does Not Operate Correctly - Manual Climate Control
- Pinpoint Test L: The Blower Motor is Inoperative - Manual Climate Control
- Pinpoint Test M: The Blower Motor is Inoperative - EATC
- Pinpoint Test N: The Blower Motor Does Not Operate Correctly - Manual Climate Control
- Pinpoint Test O: The Blower Motor Does Not Operate Correctly - EATC
- Pinpoint Test P: The Steering Wheel Control Switch is Inoperative/Does Not Operate Correctly
- Component Tests
- Climate Control System
- General Procedures
- Spring Lock Coupling
- Refrigerant System Tests
- Air Conditioning (A/C) Clutch Air Gap Adjustment
- Electronic Leak Detection
- Fluorescent Dye Leak Detection
- Air Conditioning (A/C) System Recovery, Evacuation and Charging
- Notes
- Refrigerant System Recovery
- Refrigerant System Evacuation Using an R-134a Refrigerant Management Machine
- Refrigerant System Evacuation Using an R-134a Manifold Gauge Set
- Refrigerant System Charging Using an R-134a Refrigerant Management Machine
- Refrigerant System Charging Using an R-134a Manifold Gauge Set and Automatic Refrigerant Charging Motor
- Air Conditioning (A/C) System Flushing
- 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