AIR CONDITIONING SYSTEM (for Hatchback) > PROBLEM SYMPTOMS TABLE


HINT:
  1. 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.
  2. Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Air Conditioning System (w/ Cooler) 
Symptom
Suspected Area
See page
All functions of the A/C system do not operate.
IG power source circuit
Click here
Air conditioning amplifier assembly
Click here
Air flow control: No blower operation.
Blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Air flow control: No blower control.
Blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Air flow control: Insufficient air flow.
Blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Temperature control: less cool air comes out.
Refrigerant shortage check using the Techstream
Click here
Refrigerant pressure
Click here
Cooler expansion valve
-
Compressor with pulley assembly
Click here
Air conditioning amplifier assembly
Click here
Temperature control: No cool air comes out.
Refrigerant volume
Click here
Click here
Refrigerant pressure
Click here
Air conditioner pressure sensor circuit
Click here
Compressor solenoid circuit
Click here
Evaporator temperature sensor circuit
Click here
Ambient temperature sensor circuit
Click here
Heater control switch circuit
Click here
Air mix damper control cable sub-assembly
-
Cooler expansion valve
-
Air conditioning amplifier assembly
Click here
ECM
Click here
CAN communication system
Click here
Temperature control: No warm air comes out.
Evaporator temperature sensor circuit
Click here
Ambient temperature sensor circuit
Click here
Engine coolant temperature sensor circuit
Click here
PTC heater circuit*1
Click here
Headlight signal circuit*1
Click here
Heater control switch circuit
Click here
Air mix damper control cable sub-assembly
-
Air conditioning amplifier assembly
Click here
ECM
Click here
CAN communication system
Click here
Harness or connector
-
Temperature control: Output air is warmer or cooler than the set temperature or response is slow.
Refrigerant volume
Click here
Click here
Refrigerant pressure
Click here
Ambient temperature sensor circuit
Click here
Engine coolant temperature sensor circuit
Click here
Air mix damper control cable sub-assembly
-
Radiator unit sub-assembly
-
Cooler expansion valve
-
Air conditioning amplifier assembly
Click here
ECM
Click here
CAN communication system
Click here
Temperature control: No temperature control (only Max. cool or Max. hot).
Ambient temperature sensor circuit
Click here
Evaporator temperature sensor circuit
Click here
Heater control switch circuit
Click here
Engine coolant temperature sensor circuit
Click here
Air mix damper control cable sub-assembly
-
Air conditioning amplifier assembly
Click here
ECM
Click here
CAN communication system
Click here
No air inlet control.
Recirculation damper servo motor circuit
Click here
Air conditioning amplifier assembly
Click here
No air flow mode control.
Defroster damper control cable sub-assembly
-
Engine idle speed increase does not occur, or is continuous.
Compressor solenoid circuit
Click here
Heater control switch circuit
Click here
Air conditioning amplifier assembly
Click here
ECM
Click here
CAN communication system
Click here
A/C indicator blinking.
Compressor solenoid circuit
Click here
  1. *1: w/ PTC Heater

Air Conditioning System (w/o Cooler) 
Symptom
Suspected Area
See page
All functions of the heater system do not operate.
IG power source circuit*1
Click here
Air conditioning amplifier assembly
Click here
Air flow control: No blower operation.
Blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Air flow control: No blower control.
Blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Air flow control: Insufficient air flow.
Blower motor circuit
Click here
Air conditioning amplifier assembly
Click here
Temperature control: No warm air comes out.
Ambient temperature sensor circuit*1
Click here
Engine coolant temperature sensor circuit*1
Click here
PTC heater circuit*1
Click here
Headlight signal circuit*1
Click here
Heater control switch circuit
Click here
Air mix damper control cable sub-assembly
-
Air conditioning amplifier assembly
Click here
ECM*1
Click here
CAN communication system*1
Click here
Harness or connector
-
Temperature control: Output air is warmer than the set temperature or response is slow.
Ambient temperature sensor circuit*1
Click here
Engine coolant temperature sensor circuit*1
Click here
Air mix damper control cable sub-assembly
-
Radiator unit sub-assembly
-
Air conditioning amplifier assembly
Click here
ECM*1
Click here
CAN communication system*1
Click here
Temperature control: No temperature control (only Min. hot or Max. hot).
Ambient temperature sensor circuit*1
Click here
Heater control switch circuit
Click here
Engine coolant temperature sensor circuit*1
Click here
Air mix damper control cable sub-assembly
-
Air conditioning amplifier assembly
Click here
ECM*1
Click here
CAN communication system*1
Click here
No air inlet control.
Recirculation damper servo motor circuit
Click here
Air conditioning amplifier assembly
Click here
No air flow mode control.
Defroster damper control cable sub-assembly
-
Engine idle speed increase does not occur, or is continuous.*1
Air conditioning amplifier assembly
Click here
ECM
Click here
CAN communication system
Click here
  1. *1: w/ PTC Heater