A/C OPERATION CHECK MODE [CLIMATE CONTROL UNIT (MANUAL AIR CONDITIONER)]

• The A/C operation check mode forcibly operates the output devices as shown in the operation check table regardless of the signals input to the climate control unit.

• During an A/C operation check mode operation, indication in the display panel and the illumination of the indicator light on the switches are automatically controlled.

• Determine the malfunctioning part by visual inspection, listening to the operation sound, placing a hand on the air vents, or checking that each transition is as indicated in the operation check table.

Air mix actuator

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition ON (engine off).

3. After the vehicle is identified, select the following items from the initial screen of the M-MDS.

a. Select the “Body”.

b. Select the “EATC Operation Check”.

4. Select the “Air Mix Actuator” from the screen menu.

5. Verify the A/C operation check mode according to the directions on the screen.

6. Select “Stop” to stop the A/C operation check. (See A/C operation check stop.)

NOTE:

• After approx. 22 s have elapsed, the operation step moves to the next step.

• When the last step is finished, the operation is repeated from Step 1.

• To prevent super-cooling, the magnetic clutch turns off despite the A/C forced override.

A/C compressor

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition ON (engine off).

3. After the vehicle is identified, select the following items from the initial screen of the M-MDS.

a. Select the “Body”.

b. Select the “EATC Operation Check”.

4. Select the “Air conditioning compressor” from the screen menu.

5. Verify the A/C operation check mode according to the directions on the screen.

6. Select “Stop” to stop the A/C operation check. (See A/C operation check stop.)

NOTE:

• After the following times have elapsed, the operation step moves to the next step.

• Step 1: Approx. 5 s

• Step 2: Approx. 25 s

• When the last step is finished, the operation is repeated from Step 1.

Air intake actuator

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition ON (engine off).

3. After the vehicle is identified, select the following items from the initial screen of the M-MDS.

a. Select the “Body”.

b. Select the “EATC Operation Check”.

4. Select the “Air Intake Actuator” from the screen menu.

5. Verify the A/C operation check mode according to the directions on the screen.

6. Select “Stop” to stop the A/C operation check. (See A/C operation check stop.)

NOTE:

• After approx. 11 s have elapsed, the operation step moves to the next step.

• When the last step is finished, the operation is repeated from Step 1.

• To prevent super-cooling, the magnetic clutch turns off despite the A/C forced override.

Blower motor

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition ON (engine off).

3. After the vehicle is identified, select the following items from the initial screen of the M-MDS.

a. Select the “Body”.

b. Select the “EATC Operation Check”.

4. Select the “Blower Motor Speed” from the screen menu.

5. Verify the A/C operation check mode according to the directions on the screen.

6. Select “Stop” to stop the A/C operation check. (See A/C operation check stop.)

NOTE:

• After approx. 4 s have elapsed, the operation step moves to the next step.

• When the last step is finished, the operation is repeated from Step 1.

• To prevent super-cooling, the magnetic clutch turns off despite the A/C forced override.

Airflow mode actuator

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition ON (engine off).

3. After the vehicle is identified, select the following items from the initial screen of the M-MDS.

a. Select the “Body”.

b. Select the “EATC Operation Check”.

4. Select the “Airflow Mode Actuator” from the screen menu.

5. Verify the A/C operation check mode according to the directions on the screen.

6. Select “Stop” to stop the A/C operation check. (See A/C operation check stop.)

NOTE:

• After approx. 11 s have elapsed, the operation step moves to the next step.

• When the last step is finished, the operation is repeated from Step 1.

• To prevent super-cooling, the magnetic clutch turns off despite the A/C forced override.

Indicator light

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition ON (engine off).

3. After the vehicle is identified, select the following items from the initial screen of the M-MDS.

a. Select the “Body”.

b. Select the “EATC Operation Check”.

4. Select the “Illumination Of All Indicator Lights” from the screen menu.

5. Verify the A/C operation check mode according to the directions on the screen.

6. Select “Stop” to stop the A/C operation check. (See A/C operation check stop.)

A/C operation check stop

1. If “Stop” is selected while the A/C operation check is operating, the A/C stops at the conditions shown in the table.