Subaru Legacy 2005 Service Manual page 2175

Step
6 PERFORM DIAGNOSIS.
1) Inspect using the "Diagnostic Procedure
with Diagnostic Trouble Code (DTC)". <Ref. to
4AT(diag)-33, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>
NOTE:
For DTC table, refer to "List of Diagnostic Trou-
ble Code (DTC)". <Ref. to 4AT(diag)-31, List of
Diagnostic Trouble Code (DTC).>
2) Repair the trouble cause.
3) Perform the clear memory mode.
4) Perform the inspection mode. <Ref. to
4AT(diag)-20, Inspection Mode.>
5) Display DTC.
Basic Diagnostic Procedure
Is DTC displayed on the Sub-
aru Select Monitor?
4AT(diag)-3
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Inspect using the
"Diagnostic Proce-
dure with Diagnos-
tic Trouble Code
(DTC)". <Ref. to
4AT(diag)-33,
Diagnostic Proce-
dure with Diagnos-
tic Trouble Code
(DTC).>
Yes No
Finish the diagno-
sis.