AUTOMATIC TRANSMISSION(4AT) > Air Bleeding of Control Valve

PROCEDURE

1. PREPARATION FOR AIR BLEED

1. Cool down until the ATF temperature displayed on the Subaru Select Monitor is 60°C (140°F) or less.

2. Move the select lever to “P” range.

3. Fully apply the parking brake.

4. Lift up the vehicle.

CAUTION:

While working, be sure to keep the lower edge of the tires 30 cm or more above the ground as vehicle will vibrate.

5. Connect the Subaru Select Monitor to the data link connector.

6. Turn the ignition switch to ON. (In the case of a push button start, press the push button ignition switch twice without stepping on the brake)

7. Turn all switches causing an electrical load including headlight, air conditioner, seat heater, rear defogger, etc. to OFF.

2. AIR BLEEDING PROCEDURES

CAUTION:

Do not turn the power of the Subaru Select Monitor OFF during work, and do not disconnect the data link connector.

1. Select {Learning and inspection mode related to AT} in the «Transmission Diagnosis» screen of the Subaru Select Monitor.

2. Select {AT air bleeding mode} in the «Learning and inspection mode related to AT» screen of the Subaru Select Monitor.

3. Follow the messages displayed on the Subaru Select Monitor screen when working.

NOTE:

When air bleeding in progress, the “SPORT” light in the combination meter will flash at 2 Hz, and air bleed will start. When the indicator light flashing at 2 Hz turns off, the following message will appear on the screen.

4. Air bleed is complete when a message “AT air bleeding normally ended” is displayed.

NOTE:

• If a communication error occurs during air bleed, start the “AT air bleeding” over from the beginning.

• If the message “Execute AT learning again after fixing troubles of the vehicle” appears during air bleed, select [OK] and display the DTC list. After repairing the locations indicated by the DTC, start the “AT air bleeding” over from the beginning.

• If the message “AT air bleeding ended abnormally” is displayed, start the “AT air bleeding” over from the beginning.

Message

Main reasons for abnormal termination

“AT air bleeding ended abnormally”

• A failure was detected during AT air bleed

• The accelerator was stepped on during AT air bleed.

• An unspecified operation was performed during AT air bleed

• Brake pedal not stepped on firmly enough.

• Side brake not applied strongly enough.

• Abnormal idle speed increase,    etc.

• For details concerning the operation procedure, refer to the “PC application help for Subaru Select Monitor”.