Insufficient Cooling

INSUFFICIENT COOLING

Description

- Insufficient cooling
- No cold air comes out. (Air flow volume is normal.)


Diagnosis Procedure

NOTE:
Perform the self-diagnosis with CONSULT before performing the diagnosis by symptom. Perform the diagnosis by DTC if DTC is detected.

1. CHECK ELECTRIC COMPRESSOR OPERATION

Check the electric compressor operation state while the air conditioner system is operated.
Does electric compressor operate?
YES- GO TO 2.
NO- Perform diagnosis for "COMPRESSOR DOES NOT OPERATE" in the diagnosis by symptom.
Refer to "Diagnosis Procedure" Compressor Does Not Operate.

2. CHECK REFRIGERANT CYCLE

Connect recovery/recycling/recharging equipment (for HFC-134a) to the vehicle and perform the refrigerant system diagnosis. Refer to "Symptom Table" Symptom Table.
Is the check result normal?
YES- GO TO 3.
NO- Repair or replace malfunctioning part according to diagnosis result.

3. CHECK FOR AIR LEAKAGE FROM DUCT

Check duct and nozzle, etc. of A/C system for air leakage.
Is the check result normal?
YES- GO TO 4.
NO- Repair or replace parts according to the inspection results.

4. CHECK SETTING OF DIFFERENCE BETWEEN SET TEMPERATURE AND CONTROL TEMPERATURE

With CONSULT
1.Using CONSULT, check the setting of "TEMP SET CORRECT" on "WORK SUPPORT" of "HVAC". Refer to "Temperature Setting Trimmer" Temperature Setting Trimmer.
2.Check that the difference between set temperature and control temperature is set to "+ direction".
NOTE:
The control temperature can be set with a setting difference between the set temperature and control temperature.
3.Change the set temperature correction value to "0".
Are the symptoms solved?
YES- Perform the setting separately if necessary. Inspection End.
NO- Replace A/C auto amp. Refer to "Removal and Installation" Service and Repair.