Subaru LEGACY 2006 Manual page 3642

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Diagnostic Procedure without Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Step
1 CHECK BODY INTEGRATED UNIT.
1) Perform ON/OFF operation on the manual
mode switch.
2) Read the data of manual mode switch sig-
nal using Subaru Select Monitor.
2 CHECK DTC OF BODY INTEGRATED UNIT. Is DTC of CAN detected?
3 CHECK TCM.
1) Perform ON/OFF operation on the manual
mode switch.
2) Read the data of manual mode switch sig-
nal using Subaru Select Monitor.
4 CHECK TIP INDICATOR OF COMBINATION
METER.
5 CHECK DTC OF TCM.
6 CHECK DTC OF METER.
7 CHECK GROUND CIRCUIT OF MANUAL
MODE SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from manual
mode switch.
3) Measure the resistance of harness
between manual mode switch connector and
chassis ground.
Connector & terminal
(B116) No. 6 — Chassis ground:
8 CHECK MANUAL MODE SWITCH.
Measure the resistance between manual mode
switch terminals.
Connector & terminal
(B116) No. 6 — No. 5:
9 CHECK MANUAL MODE SWITCH.
1) Move the select lever to manual mode.
2) Measure the resistance between manual
mode switch terminals.
Connector & terminal
(B116) No. 6 — No. 5:
10 CHECK HARNESS BETWEEN BODY INTE-
GRATED UNIT AND MANUAL MODE
SWITCH.
1) Disconnect the connector from body inte-
grated unit.
2) Measure the resistance of harness
between body integrated unit connector and
manual mode switch connector.
Connector & terminal
(B116) No. 5 — (B281) No. 15:
Check
Is the ON/OFF normally
detected?
Is the ON/OFF normally
detected?
Is TIP indicator light normally
operated?
Is DTC of CAN detected?
Is DTC of CAN detected?
Is the resistance less than 1
Ω?
Is the resistance more than 1
MΩ?
Is the resistance less than 1
Ω?
Is the resistance less than 1
Ω?
5AT(diag)-126
Yes No
Go to step 2. Go to step 7.
Go to step 3.
Perform the diag-
nosis according to
DTC.
Go to step 4. Go to step 5.
Go to step 6. Replace the com-
bination meter
assembly. <Ref. to
IDI-14, Combina-
tion Meter.>
Perform the diag- Replace the TCM.
nosis according to <Ref. to 5AT-56,
DTC. Transmission Con-
trol Module
(TCM).>
Perform the diag- Replace the meter.
nosis according to
DTC.
Go to step 8.
Repair the open
circuit of harness
between manual
mode switch and
chassis ground.
Go to step 9. Replace the guide
plate assembly.
Go to step 10.
Replace the guide
plate assembly.
Go to step 11.
Repair the open
circuit of harness
between manual
mode switch con-
nector and TCM
connector, or poor
contact in connec-
tor.