Symptom Charts
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart - Climate Control Systems
NOTE:
Some Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) may inhibit Air Conditioning (A/C) operation. If any Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs) are retrieved, diagnose those first. Refer to Diagnostic Trouble Code (DTC) Chart .
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
| Condition | Actions |
|---|---|
| Externally Controlled Variable Displacement Compressor (EVDC) poor performance/does not operate correctly | GO to Pinpoint Test Q |
| A module does not respond to the diagnostic scan tool | REFER to: Controller Area Network (CAN) Module Communications Network . |
| Insufficient Air Conditioning (A/C) cooling | GO to Pinpoint Test T |
| The A/C is inoperative NON HEV | GO to Pinpoint Test F |
| The A/C is always on -- A/C mode always commanded on NON HEV | GO to Pinpoint Test G |
| The A/C compressor pressure relief valve is discharging | GO to Pinpoint Test S |
| A/C ELECTRIC COMPRESSOR INOPERATIVE ACCM | GO to Pinpoint Test W |
| The air inlet door is erratic or does not operate correctly | GO to Pinpoint Test C |
| The blower motor is inoperative | GO to Pinpoint Test I |
| The blower motor does not operate correctly | GO to Pinpoint Test J |
| Incorrect or erratic direction of airflow from outlets | GO to Pinpoint Test D |
| Insufficient, erratic or no heat | GO to Pinpoint Test E |
| Reduced outlet airflow | GO to Pinpoint Test U |
| The temperature control is inoperative or does not operate correctly - driver side | GO to Pinpoint Test H |
| The electric booster heater is inoperative or does not operate correctly | GO to Pinpoint Test R |
| A/C system NVH | GO to Pinpoint Test V |