AIR CONDITIONING SYSTEM (for 2WZ-TV) PROBLEM SYMPTOMS TABLE

Standard
Symptom	Suspected area	See page
Blower Not Operating	HTR fuse	Click here
	BACK UP fuse	Click here
	HTR relay	Click here
	Blower Motor	Click here
	Blower resistor	Click here
	Blower switch	Click here
	Wire harness or connector	-
Compressor Not Operating	Refrigerant volume	Click here
	A/C MAG relay	Click here
	A/C fuse	Click here
	Magnetic clutch	Click here
	Compressor	Click here
	Pressure sensor	Click here
	A/C switch	Click here
	A/C amplifier assembly	Click here
	ECM	Click here
	Wire harness or connector	-
No Cool Air Comes Out	Refrigerant volume	Click here
	Refrigerant pressure	Click here
	Drive belt	Click here
	A/C MAG relay	Click here
	A/C fuse	Click here
	Magnetic clutch	Click here
	Compressor	Click here
	Pressure sensor	Click here
	A/C switch	Click here
	A/C amplifier assembly	Click here
	ECM	Click here
	Wire harness or connector	-
Insufficient Cooling	Refrigerant volume	Click here
	Drive belt	Click here
	Magnetic clutch	Click here
	Compressor	Click here
	Condenser	Click here
	Expansion valve	Click here
	Evaporator	Click here
	Refrigerant line	Click here
	Pressure sensor	Click here
	A/C amplifier assembly	Click here
No Engine Idle-up When A/C Switch ON	ECM	Click here
No Engine Idle-up When A/C Switch ON	Wire harness or connector	-
Radiator Fan Not Operation	EFI NO. 3 fuse	Click here
	RADIATOR fuse	Click here
	Blower resistor	Click here
	Cooling fan motor	Click here
	ECM	Click here
	Wire harness or connector	-
PTC heater not Operating*1	PTC relay 1	Click here
	PTC relay 2	Click here
	PTC 1 fuse	Click here
	PTC 2 fuse	Click here
	ECM	Click here
	Wire harness or connector	-
	PTC heater assembly	Click here

*1: The PTC heater operation may stop when the electrical load of the entire vehicle is large.