RM35X0E _58 Vehicle Interior _079316 HEATING / AIR CONDITIONING _0386653 AIR CONDITIONING SYSTEM(for Manual Cooler System) T

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Manual Cooler System)  PROBLEM SYMPTOMS TABLE  


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.



VEHICLE CHECK ITEMS


HINT:
·

You can reduce the number of systems to check by using the results of the following operation check.

·

Perform the following checks based on customer feedback and the vehicle condition.

·

The customer's operation may not be consistent with the actual problem (eg: the cooling performance of the air conditioning is bad → actually, the wind volume is weak). It is important to check the problem symptoms accurately and judge correctly based on various sources of information.

·

Judgment as to whether the air conditioning panel is normal or abnormal can be judged by checking if the indicator illuminates or turns off when the switch is operated.

·

If the performance of the air conditioning is poor or there is a foul odor, check clogging in the clean air filter.



Common Function of Cool Function Only Air Function Suspected Area
Temperature Switch Operation Blower Operation Fresh/Recirculation Function Air Outlet Charging Function
○ ○ ○ ○ X Refer to "COOLING FUNCTION:"
X ○ ○ ○ X Refer to "DISPLAY RELATED:"
○ X ○ ○ X Refer to "BLOWER RELATED:"
○ ○ X ○ X Refer to "INTAKE RELATED:"
○ ○ ○ X X Refer to "AIR OUTLET RELATED:"
X X X X X Air conditioning amplifier or air conditioning unit assembly is defective


DISPLAY RELATED:


for Front:
Symptom Suspected Area Link
Operations are never accepted by the air conditioning control assembly.
·

No. 1 heater control sub-assembly

·

No. 2 heater control sub-assembly

·

No. 3 heater control sub-assembly


Click here
Air conditioning amplifier assembly Click here

for Rear (w/ Rear Cooler):
Symptom Suspected Area Link
Operations are never accepted by the air conditioning control assembly. No. 2 air conditioning control assembly Click here
Blower resistor Click here
Harness or connector -
Air conditioning amplifier assembly Click here


COOLING FUNCTION:


for Front:
Symptom Suspected Area Link
No cooling at all. (Air is discharged.)
·

Compressor with magnet clutch assembly

·

Refrigerant pressure

·

Lack of refrigerant gas

·

Dirty cooler condenser

·

No. 1 cooler thermistor (determined as cold, conflicting with actual temperature)

·

Warm air flow


Click here
No. 3 heater control sub-assembly Click here
Air mix damper control cable sub-assembly Click here
Condenser blower motor assembly (w/ Condenser Blower Motor) Click here
harness or connector -
Air conditioning amplifier assembly Click here
·

Cooling is poor.

·

Takes time to cool down.


·

Compressor with magnet clutch assembly

·

Excessive refrigerant

·

Lack of refrigerant gas

·

Dirty cooler condenser

·

Warm air flow


Click here
Cooler thermistor (solar sensor) Click here
Condenser blower motor assembly (w/ Condenser Blower Motor) Click here
harness or connector -
Air conditioning amplifier assembly Click here
Refrigerant pressure does not decrease when temperature switch is off. Compressor with magnet clutch assembly circuit Click here

for Rear (w/ Rear Cooler):
Symptom Suspected Area Link
No cooling at all. (Air is discharged.)
·

Refrigerant pressure

·

Lack of refrigerant gas

·

Dirty cooler condenser

·

No. 2 cooler thermistor

·

Cooler expansion valve

·

Warm air flow


Click here
·

Cooling is poor.

·

Takes time to cool down.


No. 2 cooler thermistor (determined as cold, conflicting with actual temperature) Click here
Cooler expansion valve Click here
Rear blower motor circuit Click here


BLOWER RELATED:


for Front:
Symptom Suspected Area Link
·

Blower does not operate at all. (No air comes out.)

·

Blower airflow volume cannot be changed.

·

Blower airflow volume is continuously weak.

·

Blower airflow volume is sometimes weak.


Blower motor circuit Click here

for Rear (w/ Rear Cooler):
Symptom Suspected Area Link
·

Blower does not operate at all. (No air comes out.)

·

Blower airflow volume cannot be changed.

·

Blower airflow volume is continuously weak.

·

Blower airflow volume is sometimes weak.


Rear blower motor circuit Click here


INTAKE RELATED:


Symptom Suspected Area Link
·

Fresh/recirculation mode does not change.

·

Exhaust gas odor when set to recirculation.


·

Blower servo motor

·

Blower damper and link operation (jamming)

·

Foreign object jammed in door

·

Air conditioning radiator assembly

·

High engine coolant temperature


Click here


AIR OUTLET RELATED:


Symptom Suspected Area Link
Air vent cannot be changed. Mode damper control cable sub-assembly Click here
Air conditioning unit Click here


DEFOGGER RELATED:


Symptom Suspected Area Link
Front window fogging.
·

Compressor with magnet clutch assembly

·

Lack of refrigerant gas

·

Cooler expansion valve (opened too far)


Click here