Subaru Legacy 2005 Service Manual page 2498

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
Y: DTC P0768 SHIFT SOLENOID "D" ELECTRICAL
DTC DETECTING CONDITION:
The output signal circuit of direct clutch solenoid is open or shorted.
TROUBLE SYMPTOM:
Locked to 4th gear.
WIRING DIAGRAM:
Step
1
CHECK HARNESS CONNECTOR BETWEEN
TCM AND TRANSMISSION.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from TCM and
transmission.
3) Measure the resistance of harness
between TCM and transmission connector.
Connector & terminal
(B54) No. 22 — (B11) No. 16:
(B54) No. 5 — Chassis ground:
(B54) No. 14 — Chassis ground:
TCM
B54
E
B11
T4
T11
TRANSMISSION
Is the resistance less than 1
Ω?
5AT(diag)-80
Check
Go to step 2.
B54
1 2
3 4
5 6
7
8
9
10 11 12
13 14 15 16 17 18
19 20 21
22 23 24
B11
1 2
3 4
5
6 7
8
9 10
11 12
13
14 15
16
17 18
19 20
T11
1 2
3 4
5
6
7
8
9 10 11
12
AT-03190
Yes
No
Repair the open
circuit of harness
between TCM con-
nector and trans-
mission connector.

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