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

Tip:

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.

Table 1. Air Conditioning System (for Automatic Air Conditioning System)
Symptom	Suspected Area	Link
All functions of the air conditioning system do not operate	IG power source circuit	Click here
	Back-up power source circuit	Click here
	Air conditioning control assembly	Click here
Air flow control: No blower operation	Blower motor circuit	Click here
	Air filter sub-assembly	Click here
	Air conditioning control assembly	Click here
Air flow control: No blower control	Blower motor circuit	Click here
	Air filter sub-assembly	Click here
	Air conditioning control assembly	Click here
Air flow control: Insufficient air flow	Blower motor circuit	Click here
	Recirculation motor circuit	Click here
	Air filter sub-assembly	Click here
	Air conditioning radiator assembly	Click here
	Air conditioning control assembly	Click here
Temperature control: Cooling effectiveness is poor	Refrigerant volume	-
	Refrigerant pressure*3	Click here
	Refrigerant pressure*4	Click here
	Blower motor circuit	Click here
	Mixing motor circuit	Click here
	Evaporator temperature sensor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Air conditioning compressor magnetic clutch circuit	Click here
	Air conditioner pressure sensor circuit*1	Click here
	Cooler expansion valve	Click here
	Compressor with magnet clutch*1	Click here
	Compressor with magnet clutch*2	Click here
	Cooler condenser assembly	Click here
	Air conditioning control assembly	Click here
	ECM*1	Click here
	ECM*2	Click here
Temperature control: No cool air comes out	Refrigerant volume	-
	Refrigerant pressure*3	Click here
	Refrigerant pressure*4	Click here
	Blower motor circuit	Click here
	Mixing motor circuit	Click here
	Evaporator temperature sensor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Air conditioning compressor magnetic clutch circuit	Click here
	Air conditioner pressure sensor circuit*1	Click here
	Cooler expansion valve	Click here
	Compressor with magnet clutch*1	Click here
	Compressor with magnet clutch*2	Click here
	Cooler condenser assembly	Click here
	Air conditioning control assembly	Click here
	ECM*1	Click here
	ECM*2	Click here
Temperature control: No warm air comes out	Blower motor circuit	Click here
	Mixing motor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Air conditioning radiator assembly	Click here
	Air conditioning control assembly	Click here
	ECM*1	Click here
	ECM*2	Click here
Temperature control: Output air is warmer or cooler than the set temperature or response is slow	Refrigerant volume	-
	Refrigerant pressure*3	Click here
	Refrigerant pressure*4	Click here
	Blower motor circuit	Click here
	Solar sensor circuit	Click here
	Evaporator temperature sensor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Mixing motor circuit	Click here
	Recirculation motor circuit	Click here
	Air conditioning compressor magnetic clutch circuit	Click here
	Air conditioner pressure sensor circuit*1	Click here
	Air filter sub-assembly	Click here
	Cooler expansion valve	Click here
	Compressor with magnet clutch*1	Click here
	Compressor with magnet clutch*2	Click here
	Air conditioning radiator assembly	Click here
	Air conditioning control assembly	Click here
	ECM*1	Click here
	ECM*2	Click here
Temperature control: No temperature control (only MAX COLD or MAX HOT)	Blower motor circuit	Click here
	Mixing motor circuit	Click here
	Ambient temperature sensor circuit	Click here
	Evaporator temperature sensor circuit	Click here
	Solar sensor circuit	Click here
	Air filter sub-assembly	Click here
	Air conditioning control assembly	Click here
No air inlet control	Recirculation motor circuit	Click here
No air inlet control	Air conditioning control assembly	Click here
No air flow mode control	Distribution motor circuit	Click here
No air flow mode control	Air conditioning control assembly	Click here

*1: for 1PP
*2: for 1KR-FE
*3: for HFC-134a (R134a)
*4: for HFO-1234yf (R1234yf)