Subaru Legacy 2005 Service Manual page 2547

Diagnostic Procedure without Diagnostic Trouble Code (DTC)
Step
1 CHECK BODY INTEGRATED MODULE.
1) Perform the ON/OFF operation on manual
mode switch.
2) Read the data of manual mode switch sig-
nal using Subaru Select Monitor.
2 CHECK DTC OF BODY INTEGRATED MOD-
ULE.
3 CHECK TCM.
1) Perform the ON/OFF operation on manual
mode switch.
2) Read the data of manual mode switch sig-
nal using Subaru Select Monitor.
4 CHECK SPORT INDICATOR LIGHT ON
COMBINATION METER.
5 CHECK DTC OF TCM.
6 CHECK DTC OF METER.
7 CHECK MANUAL MODE SWITCH GROUND
CIRCUIT.
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) Shift 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 CONNECTOR BETWEEN
BODY INTEGRATED MODULE AND MANU-
AL MODE SWITCH.
1) Disconnect the connector from body inte-
grated module.
2) Measure the resistance of harness
between body integrated module connector
and manual mode switch connector.
Connector & terminal
(B116) No. 5 — (B281) No. 15:
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Both ON/OFF can be detected
normally?
Is DTC of AT CAN communica-
tion circuit detected?
Both ON/OFF can be detected
normally?
Is the SPORT indicator light
OK?
Is DTC of AT CAN communica-
tion circuit detected?
Is DTC of AT CAN communica-
tion circuit 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)-129
Yes
Go to step 2. Go to step 7.
Perform the diag- Go to step 3.
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-15, Combina-
tion Meter.>
Perform the diag- Replace the TCM.
nosis according to <Ref. to 5AT-61,
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.
No