Subaru Legacy IV (2008 year). Manual - part 752

5AT(diag)-23

Clear Memory Mode

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

9. Clear Memory Mode

A: OPERATION

Use “Subaru Select Monitor” to clear DTC. <Ref. to
5AT(diag)-20, CLEAR MEMORY MODE, OPERA-
TION, Subaru Select Monitor.>

NOTE:
DTC cannot be cleared without using Subaru Se-
lect Monitor.

5AT(diag)-24

Learning Control

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

10.Learning Control

A: GENERAL DESCRIPTION

• Follow the messages displayed on the Subaru
Select Monitor when working.
• When the following work is performed, perform
learning for the transmission.
Replacement of TCM/Replacement or disassembly
of transmission assembly/Replacement of control
valve body/Performing “Clear Memories 2” is exe-
cuted.

B: PROCEDURE

1. PREPARATION FOR LEARNING 
CONTROL

1) Warm-up or cool down until the ATF tempera-
ture displayed on the Subaru Select Monitor reach-
es 60 — 80°C (140 — 176° F).
2) Shift the select lever to “P” range.
3) Fully apply the parking brake.
4) Lift up the vehicle.

CAUTION:
Be sure to keep the lowest edge of the tires 30
cm or more off the ground because the vehicle
vibrates during the work.
5) Connect the Subaru Select Monitor to the data
link connector.
6) Turn the ignition switch to ON. (Press push but-
ton ignition switch twice without depressing brake
pedal for push button start.)
7) Select {Learning and inspection mode related to
AT} on the «Transmission Diagnosis» display
screen of Subaru Select Monitor.
8) Select {AT learning mode} on the «Learning and
inspection mode related to AT» display screen of
Subaru Select Monitor. 
9) Perform the procedures according to the mes-
sage displayed on the Subaru Select Monitor.

5AT(diag)-25

Learning Control

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

2. SIMPLE LEARNING

NOTE:
Simple learning is performed with the vehicle lifted,
without actually running the vehicle.

CAUTION:
Do not turn the power of the Subaru Select
Monitor OFF and do not disconnect the data
link connector during the operation.
1) Follow the messages displayed on the Subaru
Select Monitor screen when working.

NOTE:
During “SHIFT control system learning in progress”
and “AWD control system learning in progress”, AT
OIL TEMP light in the combination meter starts
flashing at 2 Hz and the learning operation starts.
The following message is displayed on the screen
when the AT OIL TEMP light turns off. If operation
ended abnormally during learning, AT OIL TEMP
light flashes at 4 Hz.
2) “AT learning normally ended.” is displayed, sim-
ple AT learning is completed.

NOTE:
• If communication error occurs during learning,
retry the “AT learning mode” from the beginning.
• If the message “Execute AT learning again after
fixing troubles of the vehicle” is displayed during
learning, select [OK] to display the List of Diagnos-
tics Trouble Code. After repairing the locations in-
dicated by the DTC, start the “AT learning mode”
over from the beginning.
• If the message “AT learning ended abnormally”
is displayed, start the “AT learning mode” over from
the beginning.

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

3. DRIVING CHECK

Drive actually and check for shifting shock or faults.
If shifting shock is felt, perform the learning opera-
tion again.
If reducing of shifting shock is not felt, recheck that
other parts are normal.

Message

Main cause of abnormal incompletion

“AT learning ended abnormally”

• Fault is detected during AT learning.
• The accelerator pedal is depressed during AT learning.
• Operation which is not directed is performed during AT learning.
• Brake pedal not stepped on firmly enough.
• Parking brake not applied strongly enough.
• Abnormal idle speed increase, etc.

5AT(diag)-26

AT OIL TEMP Warning Light Display

AUTOMATIC TRANSMISSION (DIAGNOSTICS)

11.AT OIL TEMP Warning Light Display

A: OPERATION

When any on-board diagnostics item is malfunctioning, the AT OIL TEMP light blinks from the time the mal-
function is detected after starting the engine until the ignition switch is turned OFF. The malfunctioning part
or unit can be determined by a DTC during the on-board diagnostics operation. Problems which occurred
previously can also be identified through the memory function. If the AT OIL TEMP light does not show a
problem (although a problem is occurring), the problem can be determined by checking the performance
characteristics of each sensor using Subaru Select Monitor. Indicator light signal patterns are as shown in the
figure.
When the AT OIL TEMP light does not operate normally but no DTC is stored, perform the AT OIL TEMP light
inspection. <Ref. to 5AT(diag)-27, INSPECTION, AT OIL TEMP Warning Light Display.>

(A)

Ignition switch (engine OFF)

(B)

Normal (engine ON)

(C)

Faulty (engine ON)

 

 

 

 

 

 

(1)

ON

(3)

2 seconds

(5)

Blink

(2)

OFF

(4)

0.25 seconds

 

 

AT-01750

(4)

(3)

(1)

(2)

(1)

(2)

(1)

(2)

(3)

(5)

(A)

(B)

(C)