Symptom Chart: Climate Control - Dual Automatic Temperature Control (DATC)

WARNING: This page is about a different variant/trim than selected.

Diagnostics in this article 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 the Pinpoint Test	GO to Pinpoint Test D
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, A/C always commanded on or blower motor not operating correctly.
	Improper refrigerant level	CARRY OUT the refrigerant system tests. Refer to: Refrigerant System Tests . If refrigerant charge is OK, GO to Pinpoint Test I
	Refer to the Pinpoint Test	If the blower motor will not shut off, GO to Pinpoint Test M
The air inlet door is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test E
Incorrect/erratic direction of airflow from outlets	Refer to the Pinpoint Test	GO to Pinpoint Test F
Insufficient, erratic or no heat	Refer to the Pinpoint Test	GO to Pinpoint Test G
Insufficient or erratic A/C cooling	Improper refrigerant level	CARRY OUT the refrigerant system tests. Refer to: Refrigerant System Tests . If OK, DIAGNOSE for a temperature door actuator not operating correctly.
Insufficient or erratic A/C cooling	Refer to the Pinpoint Test	For inadequate temperature out of the drive side, GO to Pinpoint Test J For inadequate temperature out of the passenger side, GO to Pinpoint Test K
The A/C is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test H
The A/C is always on - A/C mode always commanded ON	Refer to the Pinpoint Test	GO to Pinpoint Test I
Temperature control is inoperative/does not operate correctly - driver side	Refer to the Pinpoint Test	GO to Pinpoint Test J
Temperature control is inoperative/does not operate correctly - passenger side	Refer to the Pinpoint Test	GO to Pinpoint Test K
The blower motor is inoperative	Refer to the Pinpoint Test	GO to Pinpoint Test L
The blower motor does not operate correctly	Refer to the Pinpoint Test	GO to Pinpoint Test M
A/C pressure relief valve discharging	High system pressure A/C pressure relief valve	CHECK the high side system pressure. 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.