Subaru Legacy 2004 Service Manual page 2526

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
8 CHECK INPUT SIGNAL FOR TCM USING
CIRCUIT TESTER.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (engine ON)
3) Shift to 4th speed of manual mode with
checking indication of gear position in combi-
nation meter.
NOTE:
Read the value of gear position indication after
the shifting is completed (approx. 2 seconds
later from shifting).
4) Measure the voltage between TCM con-
nector and chassis ground.
Connector & terminal
(B55) No. 17 (+) — Chassis ground (
9 CHECK INPUT SIGNAL FOR TCM USING
CIRCUIT TESTER.
1) Turn the ignition switch to OFF.
2) Turn the ignition switch to ON. (engine ON)
3) Shift to 1st speed of manual mode with
checking indication of gear position in combi-
nation meter.
NOTE:
Read the value of gear position indication after
the shifting is completed (approx. 2 seconds
later from shifting).
4) Measure the voltage of harness between
TCM connector and chassis ground.
Connector & terminal
(B55) No. 17 (+) — Chassis ground (
10 CHECK HARNESS CONNECTOR BETWEEN
TRANSMISSION AND CONTROL VALVE
BODY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from transmis-
sion.
3) Remove the transmission connector from
bracket.
4) Lift-up the vehicle and place it on rigid
racks.
5) Drain the ATF.
6) Remove the oil pan, and disconnect the
control valve body connector.
7) Measure the resistance between transmis-
sion connector and control valve body connec-
tor.
Connector & terminal
(B11) No. 17 — (T6) No. 10:
(B11) No. 3 — (T6) No. 11:
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Check
Is the voltage 10 — 13 V?
$
):
Is the voltage less than 1.5 V? Even if the SPORT
$
):
Is the resistance less than 1
"?
5AT(diag)-67
Yes
Go to step 9. Replace the con-
trol valve body.
<Ref. to 5AT-58,
Control Valve
Body.>
Go to step 10.
indicator lights
blinks, the system
is in normal condi-
tion.
A temporary poor
contact of connec-
tor or harness may
be the cause.
Repair the poor
contact of har-
ness in the sole-
noid output and oil
pressure SW
input.
Replace the trans- Repair the open
mission assembly. circuit in harness
<Ref. to 5AT-38, between control
Automatic Trans- valve body con-
mission Assem- nector and trans-
bly.> mission connector.
No