Subaru Legacy 2004 Service Manual page 2522

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Q: DTC P0748 PRESSURE CONTROL SOLENOID "A" ELECTRICAL
DTC DETECTING CONDITION:
Output signal circuit of line pressure solenoid is open or shorted.
TROUBLE SYMPTOM:
Excessive shift shock.
WIRING DIAGRAM:
TCM
B54
E
B11
T4
T6
TRANSMISSION
5AT(diag)-63
AUTOMATIC TRANSMISSION (DIAGNOSTICS)
1 2 3 4
10 11 12
19 20 21
1 2
5
B54
5 6 7 8 9
13 14 15 16 17 18
22 23 24
B11
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20
T6
3 4
6 7 8 9 10 11 12
AT-02077