Inspection Procedure

1. Start the engine.
2. Operate the temperature control switch (driver side) and raise the temperature setting to 32°C (90°F).
3. Press the OFF switch.
4. Turn the ignition switch OFF.
5. Turn the ignition switch ON.
6. Press the AUTO switch.
7. Check that the temperature setting, before turning the ignition switch OFF, is stored.

Is the inspection result normal?

YES

GO TO STEP 2  .

NO

Check power and ground circuits for A/C auto amp. Refer to Diagnosis Procedure .

1. Operate the fan control dial. Check that the fan speed changes.
2. Check the operation for all fan speeds.

Is the inspection result normal?

YES

GO TO STEP 3  .

NO

Check blower motor system. Refer to Diagnosis Procedure .

1. Press the MODE switch and the DEF switch.
2. Check that the air outlets change according to each indicated air outlet by placing a hand in front of the outlets. Refer to System Description .

NOTE: Confirm that the A/C compressor clutch is engaged (sound or visual inspection) and intake door position is at FRE ( ) when the D/F ( ) or DEF ( ) is selected.

Is the inspection result normal?

YES

GO TO STEP 4  .

NO

Check mode door system. Refer to Diagnosis Procedure .

1. Press the REC ( ) switch. Indicator is turned ON.
2. Press the FRE ( ) switch. Indicator is turned ON.
3. Listen for the intake door position change. (Slight change of blower sound can be heard.)

NOTE: Confirm that the A/C compressor clutch is engaged (sound or visual inspection) and the FRE ( ) switch is pressed when the D/F ( ) or DEF ( ) is selected.

Is the inspection result normal?

YES

GO TO STEP 5  .

NO

Check intake door system. Refer to Diagnosis Procedure .

1. Press the A/C switch.
2. The A/C switch indicator is turned ON.

   Confirm that the A/C compressor clutch engages (sound or visual inspection).

Is the inspection result normal?

YES

GO TO STEP 6  .

NO

Check magnet clutch system. Refer to Diagnosis Procedure .

1. Operate the A/C compressor.
2. Operate the temperature control switch (driver side) and lower the temperature setting to 18°C (60°F).
3. Check that the cool air blows from the outlets.

Is the inspection result normal?

YES

GO TO STEP 7  .

NO

Check for insufficient cooling. Refer to Diagnosis Procedure .

1. Operate the temperature control switch (driver side) and raise the temperature setting to 32°C (90°F) after warming up the engine.
2. Check that the warm air blows from the outlets.

Is the inspection result normal?

YES

GO TO STEP 8  .

NO

Check for insufficient heating. Refer to Diagnosis Procedure .

1. Press the DUAL mode switch, and then check that "DUAL" is shown on the display.
2. Operate the temperature control switch (driver side). Check that the discharge air temperature (driver side) changes.
3. Operate the temperature control switch (passenger side). Check that the discharge air temperature (passenger side) changes.
4. Press the DUAL mode switch, and then check that the temperature setting (driver/passenger) is unified to the driver side temperature setting.

Is the inspection result normal?

YES

GO TO STEP 9  .

NO

Refer to Diagnosis Chart By Symptom  and perform the appropriate diagnosis.

1. Press the AUTO switch, and then check that "AUTO" is shown on the display.
2. Operate the temperature control switch (driver side). Check that the fan speed, outlet air or intake air changes. The discharge air temperature or fan speed varies depending on the ambient temperature, in-vehicle temperature, and temperature setting.

Is the inspection result normal?

YES

Inspection End.

NO

Refer to Diagnosis Chart By Symptom  and perform the appropriate diagnosis.