Inspection Procedure

1. Check engine coolant level and check for leakage. Refer to INSPECTION .
2. Check radiator cap. Refer to INSPECTION .
3. Check water flow sounds of engine coolant. Refer to REFILLING .

Is the inspection result normal?

YES 

GO TO STEP 2. 

NO 

Refill the engine coolant and repair or replace the parts according to the inspection results.

1. Check the setting of temperature setting trimmer. Refer to TEMPERATURE SETTING TRIMMER (WITHOUT ACCS) or TEMPERATURE SETTING TRIMMER (WITH ACCS).
2. Check that the temperature setting trimmer is set to " - direction".
   NOTE:

   The control temperature can be set with the setting of temperature setting trimmer.

3. Set temperature control dial to "0".

Are the symptoms solved?

YES 

Perform the setting separately if necessary. INSPECTION END.

NO 

GO TO STEP 3. 

1. Turn temperature dial (driver side) and raise temperature setting to 32.0°C (90°F) after warming up the engine.
2. Check that warm air blows from outlets.

Is the inspection result normal?

YES 

INSPECTION END

NO 

GO TO STEP 4. 

Perform self-diagnosis function. Refer to DIAGNOSIS DESCRIPTION (WITHOUT ACCS) or DIAGNOSIS DESCRIPTION (WITH ACCS).

Is the inspection result normal?

YES 

GO TO STEP 5. 

NO 

Repair or replace parts according to the inspection results.

Check duct and nozzle, etc. of A/C system for air leakage.

Is the inspection result normal?

YES 

GO TO STEP 6. 

NO 

Repair or replace parts according to the inspection results.

Check the heater hose installation condition visually (for twist, crush, etc.).

Is the inspection result normal?

YES 

GO TO STEP 7. 

NO 

Repair or replace parts according to the inspection results.

1. Check the temperature of inlet hose and outlet hose of heater core.
2. Check that the inlet side of heater core is hot and the outlet side is slightly lower than/almost equal to the inlet side.
   CAUTION:

   The temperature inspection should be performed in a short time because the engine coolant temperature is too hot.

Is the inspection result normal?

YES 

GO TO STEP 8  .

NO 

Replace the heater core after performing the procedures after the cooling system inspection again. GO TO STEP 1. 

Replace the heater core. Refer to EXPLODED VIEW WITH TORQUE SPECIFICATIONS .

Are the symptoms solved?

YES 

INSPECTION END

NO 

Perform the procedures after the cooling system inspection again. GO TO STEP 1.