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Home >> Ford >> 2007 >> Taurus SE >> Repair and Diagnosis >> External Pages >> Different car >> Section 267 (HVAC Control System - General Information) >> Diagnosis And Testing >> Climate Control System >> Symptom Chart
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Symptom Chart

WARNING: This page is about a different car, the 2005 Mercury Sable and 2005 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM CHART

Condition Possible Sources Action
  • No communication with the remote climate control module - EATC
  • Circuit open/short.
  • Remote climate control module communication network.
  • The EATC system is inoperative, intermittent or incorrect operation
  • Circuit open/short.
  • Input sensor(s)/erratic input signals.
  • Charging system.
  • In-car temperature sensor hose and elbow.
  • Incorrect/erratic direction of airflow from the outlets - manual climate control
  • No vacuum to the function selector switch.
  • Function selector switch leaks vacuum.
  • Air distribution door binding/stuck.
  • Vacuum line kinked/pinched.
  • Vacuum control motor.
  • A/C vacuum check valve (19A563).
  • A/C vacuum reservoir tank (19A566).
  • Vacuum control motor actuator arm not connected to the door lever.
  • Incorrect/erratic direction of airflow from the outlets - EATC
  • No vacuum to the remote climate control module.
  • Remote climate control module leaks vacuum.
  • Air distribution door binding/stuck.
  • Vacuum line kinked/pinched.
  • Vacuum control motor.
  • A/C vacuum check valve (19A563).
  • A/C vacuum reservoir tank (19A566).
  • Vacuum control motor actuator arm not connected to the door lever.
  • Insufficient, erratic, or no heat - manual climate control and EATC
  • Low engine coolant level.
  • Engine overheating.
  • Plugged or partially plugged heater core.
  • Temperature blend door binding/stuck.
  • Temperature blend door actuator (19E616).
  • Temperature blend door circuit open/shorted.
  • RCC (EATC)
  • Temperature selector switch.
  • The A/C does not operate/does not operate correctly
  • Open fuse.
  • A/C control relay.
  • Circuit open/short.
  • A/C low charge protection switch (19E561).
  • A/C system discharged/low charge.
  • Dual-function pressure switch (19D594).
  • A/C control.
  • Evaporator discharge air temperature sensor (Early Build).
  • Instrument cluster.
  • Instrument cluster configuration.
  • The A/C is always on
  • Circuit short.
  • A/C control.
  • A/C control relay.
  • Evaporator discharge air temperature sensor (Early Build).
  • Instrument cluster.
  • Instrument cluster configuration.
  • No operation in all the temperature settings - manual climate control
  • Open fuse.
  • Circuit open/short.
  • Temperature control switch (19C733).
  • Temperature blend door actuator (19E616).
  • Temperature blend door binding/stuck.
  • The blower motor does not operate - manual climate control
  • Open fuse.
  • Circuit open/short.
  • Blower motor (19805).
  • Function selector switch (19B888).
  • Blower motor relay (14B192).
  • The blower motor is inoperative - EATC
  • Open fuse.
  • Circuit open/short.
  • Blower motor.
  • Blower motor speed control (19E624).
  • Blower motor relay.
  • Remote climate control module.
  • The blower motor does not operate correctly - manual climate control
  • Circuit open/short.
  • Blower motor.
  • Blower motor switch (18578).
  • Blower motor resistor (19A706).
  • The blower motor operates continuously in high speed - manual climate control
  • Circuit short.
  • Blower motor resistor.
  • Blower motor switch.
  • The blower motor operates continuously in high speed - EATC
  • Circuit open/short.
  • Blower motor speed control.
  • Remote climate control module.
  • No operation in high blower setting - manual climate control
  • Circuit open.
  • Blower motor switch.
  • No operation in lower speeds - manual climate control
  • Circuit open.
  • Blower motor resistor.
  • No operation in some blower settings - EATC
  • Blower motor speed control.
  • Remote climate control module.
  • The temperature set point does not repeat after turning the ignition switch off - EATC
  • Open fuse.
  • Circuit open.
  • Remote climate control module.
  • REPAIR circuit 385 (WH/RD) or circuit 729 (RD/WH) for an open. If okay, INSTALL a new remote climate control module.
  • The temperature display will not switch between Celsius and Fahrenheit - EATC
  • Integrated control panel (ICP) (18C864).
  • Instrument cluster.
  • VERIFY correct defrost and A/C operation. If operation is correct, INSTALL a instrument cluster module. If operation is not correct, INSTALL a new ICP.
  • Insufficient air conditioning (A/C) cooling
  • Low refrigerant level.
  • Temperature blend door actuator.
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