Subaru LEGACY 2006 Manual page 3484

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Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
1 CHECK THE BODY INTEGRATED UNIT.
Check DTC of body integrated unit.
2 CHECK TCM.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to the
data link connector.
3) Turn the ignition switch to ON. (engine
OFF)
4) Turn the Subaru Select Monitor switch to
ON.
5) Shift the select lever to SPORT mode.
6) Up-shift the select lever.
7) Read the "Gear Position" data of TCM
using Subaru Select Monitor.
3 CHECK TCM.
1) Down-shift the select lever.
2) Read the "Gear Position" data of TCM
using Subaru Select Monitor.
4 CHECK THE BODY INTEGRATED UNIT.
Read the data of SPORT shift gear position
using Subaru Select Monitor.
5 CHECK COMBINATION METER.
<Ref. to IDI-3, INSPECTION, Combination
Meter System.>
Check
Is DTC of CAN communication
displayed?
Is the gear position 2?
Is the gear position 1?
Is the SPORT shift gear posi-
tion 2?
Is the SPORT shift indicator
OK?
4AT(diag)-98
Yes No
Perform the diag- Go to step 2.
nosis according to
DTC.
Go to step 3.
Replace the TCM.
<Ref. to 4AT-62,
Transmission Con-
trol Module
(TCM).>
Go to step 4. Replace the TCM.
<Ref. to 4AT-62,
Transmission Con-
trol Module
(TCM).>
Go to step 5.
Check the body
integrated unit.
INSPECTION OF Replace the com-
BUZZER <Ref. to bination meter
4AT(diag)-101, assembly. <Ref. to
Diagnostics with IDI-14, Combina-
Phenomenon.> tion Meter.>