Subaru Legacy 2004 Service Manual page 2598

Diagnostic Procedure without Diagnostic Trouble Code (DTC)
Step
1 CHECK BODY INTEGRATED UNIT.
1) Perform the ON/OFF operation on SPORT
shift switch.
2) Read the data of SPORT shift switch signal
using Subaru Select Monitor.
2 CHECK DTC OF BODY INTEGRATED UNIT. Is DTC of CAN detected?
3 CHECK TCM.
1) Perform the ON/OFF operation on SPORT
shift switch.
2) Read the data of SPORT shift switch signal
using Subaru Select Monitor.
4 CHECK TIP INDICATOR ON COMBINATION
METER.
5 CHECK DTC OF TCM.
6 CHECK DTC OF METER.
7 CHECK SPORT SHIFT SWITCH GROUND
CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from SPORT
shift switch.
3) Measure the resistance of harness
between SPORT shift switch connector and
chassis ground.
Connector & terminal
(B116) No. 6 — Chassis ground:
8 CHECK SPORT SHIFT SWITCH.
Measure the resistance between the SPORT
shift switch terminals.
Connector & terminal
(B116) No. 6 — No. 5:
9 CHECK SPORT SHIFT SWITCH.
1) Shift the select lever to manual mode.
2) Measure the resistance between the
SPORT shift switch terminals.
Connector & terminal
(B116) No. 6 — No. 5:
10 CHECK HARNESS CONNECTOR BETWEEN
BODY INTEGRATED UNIT AND SPORT
SHIFT SWITCH.
1) Disconnect the connector from body inte-
grated unit.
2) Measure the resistance of harness
between the body integrated unit and SPORT
shift switch connector.
Connector & terminal
(B116) No. 5 — (B281) No. 15:
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Both ON/OFF can be detected
normally?
Both ON/OFF can be detected
normally?
Is the TIP indicator OK?
Is DTC of CAN detected?
Is DTC of CAN detected?
Is the resistance less than 1
"?
Is the resistance more than 1
M"?
Is the resistance less than 1
"?
Is the resistance less than 1
"?
5AT(diag)-139
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-16, Combina-
tion Meter Assem-
bly.>
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 in harness
between SPORT
shift 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 in harness
between SPORT
shift switch con-
nector and TCM
connector, or poor
contact in cou-
pling connector.
No