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Home >> Ford >> 2022 >> Mustang Mach 1 Premium, Automatic Trans >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - General Information (Specifications, Description And Operation, Diagnosis And Testing) >> Diagnosis And Testing >> Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) >> Symptom Chart: Climate Control - Dual Automatic Temperature Control (DATC)
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Symptom Chart: Climate Control - Dual Automatic Temperature Control (DATC)

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 Powertrain Control Module (PCM) 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 Possible Sources Actions
A module does not communicate with the diagnostic scan tool Fuse(s)
Wiring, terminals or connectors
REFER to: Communications Network .
Externally Controlled Variable Displacement Compressor (EVDC) Performance Check with or without DTC P06A0 Refer to Pinpoint Test GO to Pinpoint Test Q 
HVAC functions are inoperative/do not operate correctly from touchscreen only Communication network
FCIM
APIM
Refer to Information and Entertainment System .
Reduced outlet airflow Refer to Pinpoint Test GO to Pinpoint Test V 
The air inlet door is inoperative Refer to Pinpoint Test GO to Pinpoint Test C 
Incorrect or erratic direction of airflow from outlets Refer to Pinpoint Test GO to Pinpoint Test D 
Insufficient, erratic or no heat Refer to Pinpoint Test GO to Pinpoint Test E 
The A/C is inoperative with no Diagnostic Trouble Codes (DTCs) Refer to Pinpoint Test GO to Pinpoint Test F 
The A/C is always on -- A/C mode always commanded ON Refer to Pinpoint Test GO to Pinpoint Test G 
Temperature control is inoperative/does not operate correctly -- driver side Refer to Pinpoint Test GO to Pinpoint Test H 
Temperature control is inoperative/does not operate correctly -- passenger side Refer to Pinpoint Test GO to Pinpoint Test I 
The blower motor is inoperative Refer to Pinpoint Test GO to Pinpoint Test J 
The blower motor does not operate correctly Refer to Pinpoint Test GO to Pinpoint Test K 
Insufficient A/C cooling Refer to Pinpoint Test GO to Pinpoint Test U 
A/C pressure relief valve discharging Refer to Pinpoint Test GO to Pinpoint Test S 
A/C System NVH Refer to Pinpoint Test GO to Pinpoint Test T 
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 - Vehicles With: Electronic Manual Temperature Control (EMTC) - System Operation and Component Description .
VERIFY module communications network operation. DIAGNOSE Diagnostic Trouble Codes (DTCs) if present.