Insufficient Cooling

INSUFFICIENT COOLING

Description

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


Diagnosis Procedure

NOTE:
Perform self-diagnoses with CONSULT before performing symptom diagnosis. If any DTC is detected, perform the corresponding diagnosis.

1. CHECK MAGNET CLUTCH OPERATION

1.Turn ignition switch ON.
2.Operate fan switch.
3.Touch "A/C".
4.Check that "A/C" indicator turns ON. Check visually and by sound that compressor operates.
5.Touch "A/C" again.
6.Check that "A/C" indicator turns OFF. Check that compressor stops.
Is the inspection result normal?
YES- GO TO 2.
NO- Perform diagnosis of "COMPRESSOR DOES NOT OPERATE" in "SYMPTOM DIAGNOSIS".
Compressor Does Not Operate.

2. CHECK DRIVE BELT

Check tension of drive belt. Procedures (VQ-37VHR) or (VK-56VD).
Is the inspection result normal?
YES- GO TO 3.
NO- Adjust or replace drive belt depending on the inspection results.

3. CHECK REFRIGERANT CYCLE PRESSURE

Connect recovery/recycling recharging equipment to the vehicle and perform pressure inspection with gauge.
Trouble Diagnosis For Unusual Pressure.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace parts depending on the inspection results.

4. CHECK AIR LEAKAGE FROM EACH DUCT

Check duct and nozzle, etc. of the air conditioning system for leakage.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace parts depending on the inspection results.

5. CHECK SETTING OF TEMPERATURE SETTING TRIMMER

1.Check setting value of temperature setting trimmer. Temperature Setting Trimmer.
2.Check that temperature setting trimmer is set to "+ direction".
NOTE:
The control temperature can be set with the setting of the temperature setting trimmer.
3.Set difference between set temperature and control temperature to "0".
Is inspection result normal?
YES- INSPECTION END
NO- Replace A/C auto amp. Removal And Installation.