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Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
1
CHECK BODY INTEGRATED MODULE.
Check DTC of body integrated module.
2
CHECK TCM.
Check DTC of TCM.
3
CHECK TCM.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch to ON. (engine
OFF)
4) Turn the Subaru Select Monitor power
switch to ON.
5) Shift the select lever to manual mode side,
and then shift down the select lever.
6) Read the indicator.
4
CHECK TCM.
1) Shift up the select lever.
2) Read the indicator.
5
CHECK BODY INTEGRATED MODULE.
Read the data of gear position using Subaru
Select Monitor.
6
CHECK COMBINATION METER.
Check
Is DTC of AT CAN communica-
tion circuit displayed?
Is DTC of AT CAN communica-
tion circuit displayed?
Is gear position 1 and "▲" dis-
played?
Is gear position 2 and "▼" dis-
played?
Is SPORT shift gear position
2?
Is the SPORT indicator OK?
5AT(diag)-134
Yes
Perform the diag-
Go to step 2.
nosis according to
DTC.
Perform the diag-
Go to step 3.
nosis according to
DTC.
Go to step 4.
Replace the TCM.
<Ref. to 5AT-61,
Transmission Con-
trol Module
(TCM).>
Go to step 5.
Replace the TCM.
<Ref. to 5AT-61,
Transmission Con-
trol Module
(TCM).>
Go to step 6.
Check the body
integrated mod-
ule. <Ref. to SL-
44, Body Inte-
grated Module.>
Refer to "General
Replace the com-
Diagnostic Table".
bination meter
<Ref. to 5AT(diag)-
assembly. <Ref. to
137, General Diag-
IDI-15, Combina-
nostic Table.>
tion Meter.>
No
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