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
|
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
|