Description

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

Diagnosis Procedure

NOTE

:
Perform self-diagnosis with CONSULT-III before performing symptom diagnosis. If any malfunction result or DTC is detected, perform the corresponding diagnosis.

1.CHECK MAGNET CLUTCH OPERATION

1. Turn ignition switch ON.

2. Turn fan control dial ON.

3. Press A/C switch.

4. Check that A/C indicator turns ON. Check visually and by sound that compressor operates.

5. Press A/C switch again.

6. Check that A/C indicator turns OFF. Check that compressor stops.

Is the inspection result normal? YES >> GO TO 2.

NO >> Perform the diagnosis of “COMPRESSOR DOSE NOT OPERATE” in “SYMPTOM DIAGNOSIS”.

Refer to HAC-302, "Diagnosis Procedure".

2.CHECK DRIVE BELT

Check tension of drive belt. Refer to the following.

• HR16DE: Refer to EM-154, "Checking".

• MR16DDT: Refer to EM-20, "Checking".

• K9K: Refer to EM-276, "Checking Drive Belts".

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.

Refer to the following.

• HR16DE: Refer to HA-28, "Symptom Table".

• MR16DDT: Refer to HA-83, "Symptom Table".

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 >> Check air mix door cable installation and air mix door operation.

NO >> Repair or replace parts depending on the inspection results.