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 the Diagnostic Trouble Code (DTC) Chart
.
Diagnostics in this service information assume A/Certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
| Condition | Actions |
|---|---|
| Unable to duplicate the customer concern and no Diagnostic Trouble Codes (DTCs) present | GO to Pinpoint Test I |
| A module does not respond to the diagnostic scan tool | REFER to: Communications Network . |
| Externally Controlled Variable Displacement Compressor (EVDC) poor performance/does not operate correctly | GO to Pinpoint Test C |
| Insufficient Air Conditioning (A/C) cooling | GO to Pinpoint Test AY |
| The A/C is inoperative NON HEV | GO to Pinpoint Test M |
| The A/C is always on -- A/C mode always commanded on NON HEV | GO to Pinpoint Test N |
| The A/C pressure relief valve is discharging | GO to Pinpoint Test AW |
| ACCMA/C ELECTRIC COMPRESSOR INOPERATIVE | GO to Pinpoint Test AI |
| The air inlet door is inoperative | GO to Pinpoint Test J |
| The front blower motor is inoperative | GO to Pinpoint Test O |
| The front blower motor does not operate correctly | GO to Pinpoint Test P |
| The rear blower motor is inoperative | GO to Pinpoint Test AC |
| The rear blower motor does not operate correctly | GO to Pinpoint Test AD |
| Incorrect or erratic direction of airflow from outlets on front system | GO to Pinpoint Test K |
| Incorrect or erratic direction of airflow from outlets on rear system | GO to Pinpoint Test AE |
| Insufficient, erratic or no heat | GO to Pinpoint Test L |
| Reduced outlet airflow | GO to Pinpoint Test AZ |
| The temperature control is inoperative or does not operate correctly - driver side | GO to Pinpoint Test G |
| The temperature control is inoperative or does not operate correctly - passenger side | GO to Pinpoint Test H |
| The rear temperature control is inoperative or does not operate correctly | GO to Pinpoint Test AF |
| The temperature setpoint does not repeat after setting the ignition to OFF | INSTALL a new HVAC control module. REFER to the appropriate procedure in Heating, Ventilation and Air Conditioning (HVAC) Control Module . |
| NVH when the A/C is on | GO to Pinpoint Test BA |