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HOMESERVICE MANUALSFORD2009FUSION SEL, 3.0 1, FWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 993 (CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS)DIAGNOSTIC TESTSCLIMATE CONTROL SYSTEMSYMPTOM CHART - CLIMATE CONTROL SYSTEM
2009 Ford Fusion SEL, 3.0 1, FWD

Symptom Chart - Climate Control System

2009 Ford Fusion SEL, 3.0 1, FWDSECTION Symptom Chart - Climate Control System
WARNING: This page is about a different car, the 2008 Mercury Milan, 2008 Lincoln MKZ, and 2008 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart - Climate Control System

Condition Possible Sources Action
  • No communication with the HVAC module - Dual Automatic Temperature Control (DATC) or HVAC module - Electronic Automatic Temperature Control (EATC)
  • Fuse(s)
  • Circuitry open
  • HVAC module - DATC communication network
  • HVAC module - EATC communication network
  • HVAC functions verification
  • HVAC system and/or related components
  • Air inlet door is inoperative
  • Circuitry open/shorted
  • HVAC module - EATC
  • HVAC module - DATC
  • HVAC module - Electronic Manual Temperature Control (EMTC)
  • Air inlet door actuator/linkage
  • Incorrect/erratic direction of airflow from outlets
  • Circuitry short/open
  • Door actuator
  • Mode door binding or stuck
  • HVAC module - EATC
  • HVAC module - DATC
  • HVAC module - EMTC
  • Door actuator arm not connected to the door crank
  • Reduced outlet airflow
  • Circuitry short
  • A/C compressor clutch air gap
  • A/C cycling switch
  • A/C clutch relay
  • Blower motor
  • Blower motor control
  • Blower motor resistor
  • Blower motor switch
  • PCM
  • If the A/C compressor does not cycle, go to Pinpoint Test N .
  • EMTC systems, if the A/C compressor cycles normally, go to Pinpoint Test S .
  • EATC/DATC systems, if the A/C compressor cycles normally, Go to Pinpoint Test U .
  • Insufficient, erratic or no heat
  • Low engine coolant level
  • Engine overheating
  • Plugged or partially plugged heater core
  • Temperature blend door is binding or stuck
  • Temperature blend door actuator
  • Heater hose is kinked or binding
  • The air conditioning (A/C) is inoperative
  • Open fuse
  • Circuitry short/open
  • A/C system discharged/low charge
  • PCM
  • HVAC module - EATC
  • HVAC module - DATC
  • HVAC module - EMTC
  • A/C compressor clutch air gap
  • A/C clutch relay
  • The air conditioning (A/C) is always on - A/C compressor does not cycle
  • Circuitry short/open
  • PCM
  • A/C compressor clutch air gap
  • A/C clutch relay
  • The air conditioning (A/C) is always on - A/C mode always commanded ON
  • Circuitry short/open
  • HVAC module - EATC
  • HVAC module - DATC
  • HVAC module - EMTC
  • PCM
  • Temperature control is inoperative/does not operate correctly - EMTC
  • Circuitry open/shorted
  • HVAC module - EMTC
  • Temperature blend door
  • Temperature blend door actuator
  • Door actuator arm not connected to the door crank
  • Temperature control is inoperative/does not operate correctly - EATC/DATC
  • Circuitry open/shorted
  • HVAC module - EATC
  • HVAC module - DATC
  • Temperature blend door
  • Temperature blend door actuator
  • Door actuator arm not connected to the door crank
  • The blower motor is inoperative - EMTC
  • Fuse(s)
  • Circuitry open/shorted
  • A/C blower motor switch
  • Blower motor relay
  • A/C blower motor
  • HVAC module - EMTC
  • The blower motor does not operate correctly - EMTC
  • Circuitry shorted
  • A/C blower motor resistor
  • A/C blower motor switch
  • The blower motor is inoperative - DATC/EATC
  • Fuse(s)
  • Circuitry short/open
  • Blower motor relay
  • A/C blower motor
  • HVAC module - EATC
  • HVAC module - DATC
  • A/C blower motor speed control
  • The blower motor does not operate correctly - DATC/EATC
  • Circuitry short
  • A/C blower motor speed control
  • HVAC module - EATC
  • HVAC module - DATC
  • A/C blower motor speed control
  • The dual temperature control is inoperative/does not operate correctly
  • Temperature blend door/actuator broken/binding
  • HVAC module - DATC
  • Low A/C refrigerant charge
  • CHECK that the A/C system pressure is above 290 kPa (42 psi). If the pressure is below 290 kPa (42 psi), REFER to Fluorescent Dye Leak Detection . CHECK the temperature blend doors/actuators for a binding or broken condition. If no condition is found, INSTALL a new DATC module.
  • The temperature set point does not repeat after turning the ignition switch OFF
  • Open fuse
  • Circuitry short/open
  • HVAC module - EATC
  • HVAC module - DATC
  • CHECK circuit SBP07 (WH/RD) for a short or open and repair as necessary. If OK, INSTALL a new HVAC module.
  • The temperature display will not switch between Celsius and Fahrenheit
  • HVAC module - EATC
  • HVAC module - DATC
  • Instrument Cluster (IC) module
  • If the IC does not switch between English and Metric, REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION article.
  • If only the HVAC module does not switch between English and Metric, INSTALL a new HVAC module.
  • Inaccurate external temperature display
  • HVAC module - EATC
  • HVAC module - DATC
  • REFER to Description and Operation of the External Temperature Display. If the external temperature display is not operating as described and no DTC is present, CARRY OUT the Ambient Temperature Sensor . If the sensor tests OK, CARRY OUT the HVAC Module Cold Boot Process. If the condition returns, INSTALL a new HVAC module. REFER to CLIMATE CONTROL article. TEST the system for normal operation.
  • 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, REPLACE the A/C pressure relief valve. If the system pressure is above the A/C pressure relief valve open pressure, REPAIR the system for a restriction.
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.