Symptom Chart(s)
WARNING: This page is about a different car, the 2015 Ford C-Max. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart: Climate Control - Dual Automatic Temperature Control (DATC)
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
Symptom Chart
| Condition | Possible Sources | Actions |
|---|---|---|
| No communication with the HVAC control module | Fuse(s) Wiring, terminals or connectors HVAC control module |
REFER to: Communications Network . |
| Unable to duplicate the customer concern and no Diagnostic Trouble Codes (DTCs) present | Refer to Pinpoint Test | GO to Pinpoint Test E |
| HVAC functions are inoperative/do not operate correctly from touchscreen only | Communication network FDIM APIM |
REFER to: Information and Entertainment System . |
| Reduced outlet airflow | Plugged cabin air filter | Inspect the cabin air filter. REFER to: Cabin Air Filter . If OK, DIAGNOSE for low refrigerant charge, AC always commanded on or blower motor not operating correctly. |
| Improper refrigerant level | CARRY OUT the refrigerant system tests. REFER to: Refrigerant System Tests - Hybrid Electric Vehicle (HEV) . REFER to: Refrigerant System Tests - Plug-In Hybrid Electric Vehicle (PHEV) . If refrigerant charge is OK, GO to Pinpoint Test J . | |
| Blower motor | If the blower motor will not shut off, GO to Pinpoint Test N | |
| The air inlet door is inoperative | Refer to Pinpoint Test | GO to Pinpoint Test F |
| Incorrect/erratic direction of airflow from outlets | Refer to Pinpoint Test | GO to Pinpoint Test G |
| Insufficient, erratic or no heat | Refer to Pinpoint Test | GO to Pinpoint Test H |
| Insufficient, erratic or no heat in electric motor mode PHEV only | Wiring, terminals or connectors ECT sensor 2 (also known as cabin heater coolant temperature sensor) Cabin coolant heater Cabin heater coolant diverter valve Cabin heater coolant pump PCM |
REFER to: Auxiliary Climate Control . |
| The A/C is inoperative | Refer to Pinpoint Test | GO to Pinpoint Test I |
| Insufficient Air Conditioning (A/C) cooling | Improper refrigerant level | CARRY OUT the refrigerant system tests. REFER to: Refrigerant System Tests - Hybrid Electric Vehicle (HEV) . REFER to: Refrigerant System Tests - Plug-In Hybrid Electric Vehicle (PHEV) . If OK, DIAGNOSE for a temperature door actuator not operating correctly. |
| Temperature door actuator | For inadequate temperature out of the LH side, GO to Pinpoint Test K For inadequate temperature out of the RH side, GO to Pinpoint Test L |
|
| The A/C is always on - A/C mode always commanded ON | Refer to Pinpoint Test | GO to Pinpoint Test J |
| Temperature control is inoperative/does not operate correctly - driver side | Refer to Pinpoint Test | GO to Pinpoint Test K |
| Temperature control is inoperative/does not operate correctly - passenger side | Refer to Pinpoint Test | GO to Pinpoint Test L |
| The blower motor is inoperative | Refer to Pinpoint Test | GO to Pinpoint Test M |
| The blower motor does not operate correctly | Refer to Pinpoint Test | GO to Pinpoint Test N |
| A/C pressure relief valve discharging | High system pressure | CHECK the high side system pressure. REFER to: Specifications . If the pressure is below the A/C pressure relief valve open pressure, INSTALL a new A/C electric compressor. REFER to: Air Conditioning (A/C) Electric Compressor . If the system pressure is above the A/C pressure relief valve open pressure, REPAIR the A/C system for a restriction. |
| A/C pressure relief valve | ||
| Climate control does not operate only when remote start is used | IPC information display settings Non-Ford approved remote start system installed |
VERIFY Remote Start - Message Center Set To Auto, or Remote Start - Message Center Set To Last User Settings. REFER to: Climate Control System - System Operation and Component Description . VERIFY module communications network operation. DIAGNOSE Diagnostic Trouble Codes (DTCs) if present. |
Symptom Chart: Noise, Vibration, and Harshness (NVH)
Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .
NOTE:
It is normal for the A/C electric compressor to have some high frequency sounds that increase in intensity as the compressor speed increases, especially in higher ambient temperatures. These sounds are more noticeable outside the vehicle than inside. If necessary, compare to another vehicle with the HVAC system set to the same settings and running both vehicles for 5 minutes.
Symptom Chart
| Condition | Possible Sources | Actions |
|---|---|---|
| Noisy A/C electric compressor | Incorrect A/C refrigerant level | CHECK the A/C refrigerant level. REFER to: Refrigerant System Tests - Hybrid Electric Vehicle (HEV) . |
| A/C electric compressor mounting bracket contact with frame | INSPECT and CORRECT the A/C electric compressor mounting. REFER to: Air Conditioning (A/C) Electric Compressor . |