AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) > PROBLEM SYMPTOMS TABLE

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HINT:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Air conditioning system 
Symptom
Suspected Area
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All functions of the A/C system do not operate
IG power source circuit
Click here
LIN communication system
Click here
Integration control and panel (for Column Shift Type)
Click here
Integration control and panel (for Floor Shift Type)
Click here
Air conditioning amplifier
Click here
Air Flow Control: No blower operation
Blower motor circuit
Click here
LIN communication system
Click here
Integration control and panel (for Column Shift Type)
Click here
Integration control and panel (for Floor Shift Type)
Click here
Air conditioning amplifier
Click here
Air Flow Control: No blower control
Blower motor circuit
Click here
LIN communication system
Click here
Integration control and panel (for Column Shift Type)
Click here
Integration control and panel (for Floor Shift Type)
Click here
Air conditioning amplifier
Click here
Air Flow Control: Insufficient air flow
Blower motor circuit
Click here
Air conditioning amplifier
Click here
Temperature Control: No cool air comes out
Refrigerant volume
Click here
Refrigerant pressure
Click here
Pressure switch circuit
Click here
Air conditioning compressor magnetic clutch circuit
Click here
Compressor lock sensor circuit
Click here
Air mix damper control servo motor circuit (for Driver Side)
Click here
Air mix damper control servo motor circuit (for Passenger Side)
Click here
Evaporator temperature sensor circuit
Click here
Ambient temperature sensor circuit
Click here
LIN communication system
Click here
Expansion valve
Click here
Integration control and panel (for Column Shift Type)
Click here
Integration control and panel (for Floor Shift Type)
Click here
Air mix servo motor (for driver side)
Click here
Air mix servo motor (for passenger side)
Click here
Air conditioning harness
-
Air conditioning amplifier
Click here
ECM (for 1GR-FE)
Click here
ECM (for 1UR-FE)
Click here
ECM (for 3UR-FE)
Click here
ECM (for 3UR-FBE)
Click here
Temperature Control: No warm air comes out
Air mix damper control servo motor circuit (for Driver Side)
Click here
Air mix damper control servo motor circuit (for Passenger Side)
Click here
Evaporator temperature sensor circuit
Click here
Ambient temperature sensor circuit
Click here
Air mix servo motor (for driver side)
Click here
Air mix servo motor (for passenger side)
Click here
Air conditioning harness
-
Air conditioning amplifier
Click here
Temperature Control: Output air is warmer or cooler than the set temperature or response is slow
Refrigerant volume
Click here
Refrigerant pressure
Click here
Ambient temperature sensor circuit
Click here
Air mix damper control servo motor circuit (for Driver Side)
Click here
Air mix damper control serve motor circuit (for Passenger Side)
Click here
Radiator unit sub-assembly (for 1GR-FE)
Click here
Radiator unit sub-assembly (for 1UR-FE)
Click here
Radiator unit sub-assembly (for 3UR-FE)
Click here
Radiator unit sub-assembly (for 3UR-FBE)
Click here
Expansion valve
Click here
Air mix servo motor (for driver side)
Click here
Air mix servo motor (for passenger side)
Click here
Air conditioning harness
-
Air conditioning amplifier
Click here
Temperature Control: No temperature control (only Max. cool or Max. warm)
Air mix damper control servo motor circuit (for Driver Side)
Click here
Air mix damper control servo motor circuit (for Passenger Side)
Click here
Ambient temperature sensor circuit
Click here
Evaporator temperature sensor circuit
Click here
Integration control and panel (for Column Shift Type)
Click here
Integration control and panel (for Floor Shift Type)
Click here
Air mix servo motor (for driver side)
Click here
Air mix servo motor (for passenger side)
Click here
Air conditioning harness
-
Air conditioning amplifier
Click here
No air inlet control
Air inlet control servo motor circuit
Click here
Air inlet servo motor
Click here
Air conditioning harness
-
Air conditioning amplifier
Click here
No air flow mode control
Air outlet control servo motor circuit
Click here
Air outlet servo motor
Click here
Air conditioning harness
-
Air conditioning amplifier
Click here
Engine idle up does not occur, or is continuous
Air conditioning compressor magnetic clutch circuit
Click here
Compressor lock sensor circuit
Click here
LIN communication system
Click here
Integration control and panel (for Column Shift Type)
Click here
Integration control and panel (for Floor Shift Type)
Click here
Air conditioning amplifier
Click here
ECM (for 1GR-FE)
Click here
ECM (for 1UR-FE)
Click here
ECM (for 3UR-FE)
Click here
ECM (for 3UR-FBE)
Click here
Blinking of A/C indicator
Air conditioning amplifier
Click here
Diagnostic trouble codes are not recorded. Set mode is cleared when ignition switch is turned OFF.
Air conditioning amplifier
Click here