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AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
1
CHECK SPORT INDICATOR LIGHT.
Turn the ignition switch to ON.
2
CHECK SPORT INDICATOR LIGHT.
After the ignition switch is ON, wait for at least
2 seconds.
3
CHECK SPORT INDICATOR LIGHT.
Start the engine.
4
CHECK SUBARU SELECT MONITOR COM-
MUNICATION.
Connect the Subaru Select Monitor to data link
connector.
5
CHECK TCM.
Display the current data of TCM using Subaru
Select Monitor.
6
CHECK BODY INTEGRATED MODULE.
Display the current data of body integrated
module using Subaru Select Monitor. <Ref. to
LAN(diag)-14, OPERATION, Subaru Select
Monitor.>
7
CHECK TCM.
1) Start the engine.
2) Display the current data of TCM using Sub-
aru Select Monitor. <Ref. to 5AT(diag)-17,
OPERATION, Subaru Select Monitor.>
8
CHECK BODY INTEGRATED MODULE.
Display the current data of body integrated
module using Subaru Select Monitor. <Ref. to
LAN(diag)-14, OPERATION, Subaru Select
Monitor.>
SPORT Indicator Light Display
Does the SPORT indicator
light illuminate?
Does the SPORT indicator
light illuminate?
Does the SPORT indicator
light go off?
Is the communication between
Subaru Select Monitor and
TCM normal?
Is the "Diagnosis Lamp" out-
put signal "ON"?
Is the "SPORT Lamp" input
signal "Illuminate"?
Is the "Diagnosis Lamp" out-
put signal "ON"?
Is the "SPORT Lamp" input
signal "Illuminate"?
5AT(diag)-26
Check
Go to step 2.
Go to step 3.
Normal. Go back
to "Basic Diagnos-
tic Procedure".
<Ref. to 5AT(diag)-
2, Basic Diagnos-
tic Procedure.>
Go to step 5.
Go to step 6.
Replace the com-
bination meter
assembly. <Ref. to
IDI-15, Combina-
tion Meter.>
Replace the TCM.
<Ref. to 5AT-61,
Transmission Con-
trol Module
(TCM).>
Check DTC of
body integrated
module. Perform
the diagnosis
according to DTC.
<Ref. to
LAN(diag)-14,
OPERATION,
Subaru Select
Monitor.>
Yes
No
Perform the self-
diagnosis of com-
bination meter.
Go to step 4.
Go to step 7.
Check the power
supply ground cir-
cuit of TCM and
Subaru Select
Monitor communi-
cation. <Ref. to
5AT(diag)-27,
Diagnostic Proce-
dure for Subaru
Select Monitor
Communication.>
Replace the TCM.
<Ref. to 5AT-61,
Transmission Con-
trol Module
(TCM).>
Check DTC of
body integrated
module. <Ref. to
LAN(diag)-14,
OPERATION,
Subaru Select
Monitor.>
Go to step 8.
Perform the self-
diagnosis for com-
bination meter.
<Ref. to IDI-3,
INSPECTION,
Combination
Meter System.>
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