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GSIC - Global Service Information Center

AIR CONDITIONING SYSTEM > PROBLEM SYMPTOMS TABLE

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HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Air Conditioning System
Symptom	Suspected Area	See page
All functions of the A/C system do not operate	IG power source circuit	Click here
	Back-up power source circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
Air flow control: No blower operation	Blower motor circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
Air flow control: No blower control	Blower motor circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
Air flow control: Insufficient air flow	Blower motor circuit	Click here
Air flow control: Insufficient air flow	A/C amplifier	Click here
The blower motor operates by itself or the motor speed changes arbitrarily (Speed does not change in accordance with automatic or manual control settings)*1	IG signal circuit	Click here
	Solar ventilation ECU	Click here
Temperature control: No cool air comes out	Refrigerant volume	Click here
	Refrigerant pressure	Click here
	Air conditioning pressure sensor circuit	Click here
	Air mix damper control servo motor circuit	Click here
	Evaporator temperature sensor circuit	Click here
	Room temperature sensor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Air conditioning control panel circuit	Click here
	Expansion valve	Click here
	CAN communication system	Click here
	A/C amplifier	Click here
	No. 2 engine wire	Click here
	Compressor with motor assembly	Click here
	Power management control ECU	Click here
Temperature control: No warm air comes out	Air mix damper control servo motor circuit	Click here
	Evaporator temperature sensor circuit	Click here
	Room temperature sensor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Air conditioning control panel circuit	Click here
	PTC heater circuit*2	Click here
	CAN communication system	Click here
	Radiator unit sub-assembly	Click here
	A/C amplifier	Click here
	ECM	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
	Solar sensor circuit	Click here
	Room temperature sensor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Evaporator temperature sensor circuit	Click here
	Air mix damper control servo motor circuit	Click here
	Air inlet damper control servo motor circuit	Click here
	PTC heater circuit*2	Click here
	Air conditioning control panel circuit	Click here
	Radiator unit sub-assembly	Click here
	Expansion valve	Click here
	CAN communication system	Click here
	A/C amplifier	Click here
	No. 2 engine wire	Click here
	Compressor with motor assembly	Click here
	ECM	Click here
	Power management control ECU	Click here
Temperature control: No temperature control (only Max. cool or Max. warm)	Air mix damper control servo motor circuit	Click here
	Room temperature sensor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Evaporator temperature sensor circuit	Click here
	Solar sensor circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
No air inlet control	Air inlet damper control servo motor circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
No air flow mode control	Air outlet damper control servo motor circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
Heater performance is low (engine is stopped)*2	PTC heater circuit	Click here
Heater performance is low (engine is stopped)*2	A/C amplifier	Click here
ECO MODE switch indicator does not come on (ECO MODE switch does not operate)	ECO switch circuit	Click here
	A/C amplifier	Click here
Pollen removal mode does not operate (A/C system is operating normally)	Air inlet damper control servo motor circuit	Click here
	Air outlet damper control servo motor circuit	Click here
	Blower motor circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
Unable to control A/C with the steering pad switch	Steering pad switch circuit	Click here
	Air conditioning control panel circuit	Click here
	A/C amplifier	Click here
Diagnostic trouble codes (DTCs) are not recorded. Set mode is cleared when power switch is off.	Back-up power source circuit	Click here
	A/C amplifier	Click here

Remote Air Conditioning System*3
Symptom	Suspected Area	See page
The remote air conditioning system does not operate when the remote A/C switch on the key (electrical transmitter) is pressed.	Wireless door lock control system	Click here
	Data List (FL Door Courtesy, FR Door Courtesy, RL Door Courtesy SW, RR Door Courtesy SW, Back Door Courtesy SW)	Click here
	Data List (Hood Courtesy SW)	Click here
	Data List (Start Switch1, Start Switch2)	Click here
	Data List (IG SW, ACC SW)	Click here
	Data List (FL Door Lock Pos, FR Door Lock Pos, RL-Door Lock Pos SW, RR-Door Lock Pos SW)	Click here
	Theft deterrent system	Click here
	Operation check (key (electrical transmitter))	Click here
	Use simulation method to check	Click here
The remote air conditioning system does not operate even though a wireless door lock is performed when the remote A/C switch on the key (electrical transmitter) is pressed.	Data List (FL Door Courtesy, FR Door Courtesy, RL Door Courtesy SW, RR Door Courtesy SW, Back Door Courtesy SW)	Click here
	Data List (Hood Courtesy SW)	Click here
	Data List (Start Switch1, Start Switch2)	Click here
	Data List (IG SW, ACC SW)	Click here
	Data List (Stop Light Switch)	Click here
	Data List (Shift Position)	Click here
	Theft deterrent system	Click here
	Use simulation method to check	Click here
The remote air conditioning system stops operating shortly after the system starts.	Operation check	Click here
	Use simulation method to check	Click here
The remote air conditioning system starts operating by itself.	Use simulation method to check	Click here
	Operation check (activation control, stop control, key (electrical transmitter))	Click here
	Certification ECU	-
	A/C amplifier	Click here
	Power management control ECU	Click here
The remote air conditioning system cannot be stopped using the remote A/C switch on the key (electrical transmitter).	Customize (Stop Pre A/C)	Click here
	Operation check (stop control, key (electrical transmitter))	Click here
	A/C amplifier	Click here
	Power management control ECU	Click here
	Certification ECU	-

*1: w/ Solar Ventilation System
*2: w/ PTC Heater Assembly
*3: w/ Remote Air Conditioning System