Operation CHARM: Car repair manuals for everyone.

With 7 Inch Display




INSUFFICIENT COOLING

Description

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


Diagnosis Procedure


1. CHECK MAGNET CLUTCH OPERATION

1.Turn the ignition switch ON.
2.Turn the fan control dial ON.
3.Press the A/C switch.
4.Check that the indicator of the A/C switch turns ON. Check visually and by sound that the compressor operates.
5.Press the A/C switch again.
6.Check that the indicator of the A/C switch turns OFF. Check that the compressor stops.
Is the inspection result normal?
YES- GO TO 2.
NO- Magnet clutch system malfunction. With 7 Inch Display.

2. CHECK DRIVE BELT

Check tension of the drive belt. Procedures.
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 the recovery/recycling recharging equipment to the vehicle and perform the pressure inspection with the gauge. Symptom Table.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace the parts depending on the inspection results.

4. CHECK PERFORMANCE CHART

Connect recovery/recycling recharging equipment to the vehicle and perform the performance test. Refer to
Performance Test.
Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 7.

5. CHECK AMBIENT TEMPERATURE DISPLAY

Check that there is not much difference between actual ambient temperature and indicated temperature on information display in combination meter.
Is the inspection result normal?
YES- GO TO 6.
NO- Perform the diagnosis for the A/C auto amp. connection recognition signal. A/C Auto Amp. Connection Recognition Signal Circuit.

6. CHECK SETTING OF TEMPERATURE SETTING TRIMMER

With CONSULT
1.Select "TEMP SET CORRECT" of HVAC work support item. With 7 Inch Display.
2.Check that the temperature setting trimmer is set to "+ direction".
NOTE:
The control temperature can be set with the setting of the temperature setting trimmer.
3.Set the difference between the set temperature and control temperature to "0".
- INSPECTION END

7. CHECK CHARGED REFRIGERANT AMOUNT

1.Connect recovery/recycling recharging equipment to the vehicle and discharge the refrigerant.
2.Recharge with the proper amount of refrigerant.
Are the symptoms solved?
YES- INSPECTION END
NO- With 7 Inch Display and perform the appropriate diagnosis.