Page 2073 of 2890
B2M0663
BD: DTC P0748
—PRESSURE CONTROL SOLENOID (DUTY
SOLENOID A) ELECTRICAL (ATPL)—
DTC DETECTING CONDITION:
Two consecutive trips with fault
TROUBLE SYMPTOM:
Excessive shift shock
10BD1Check DTC P0748 on display.
Check duty solenoid A circuit.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
WIRING DIAGRAM:
OBD0424
10BD1
CHECK DTC P0748 ON DISPLAY.
: Does the Subaru select monitor or OBD-II
general scan tool indicate DTC P0748?
: Check duty solenoid A circuit.
NOTE:
For the diagnostic procedure on duty solenoid A circuit,
refer to 3-2 [T7A0].
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10. Diagnostics Chart with Trouble Code
Page 2074 of 2890
B2M0664
BE: DTC P0753
—SHIFT SOLENOID A (SHIFT SOLENOID 1)
ELECTRICAL (ATSFT1)—
DTC DETECTING CONDITION:
Two consecutive trips with fault
TROUBLE SYMPTOM:
No shift
10BE1Check DTC P0753 on display.
Check shift solenoid 1 circuit.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
WIRING DIAGRAM:
OBD0436
10BE1
CHECK DTC P0753 ON DISPLAY.
: Does the Subaru select monitor or OBD-II
general scan tool indicate DTC P0753?
: Check shift solenoid 1 circuit.
NOTE:
For the diagnostic procedure on shift solenoid 1 circuit,
refer to 3-2 [T7E0].
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10. Diagnostics Chart with Trouble Code
Page 2075 of 2890
B2M0665
BF: DTC P0758
—SHIFT SOLENOID B (SHIFT SOLENOID 2)
ELECTRICAL (ATSFT2)—
DTC DETECTING CONDITION:
Two consecutive trips with fault
TROUBLE SYMPTOM:
No shift
10BF1Check DTC P0758 on display.
Check shift solenoid 2 circuit.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
WIRING DIAGRAM:
OBD0444
10BF1
CHECK DTC P0758 ON DISPLAY.
: Does the Subaru select monitor or OBD-II
general scan tool indicate DTC P0758?
: Check shift solenoid 2 circuit.
NOTE:
For the diagnostic procedure on shift solenoid 2 circuit,
refer to 3-2 [T7D0].
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10. Diagnostics Chart with Trouble Code
Page 2076 of 2890
B2M0666
BG: DTC P0760
—SHIFT SOLENOID C (SHIFT SOLENOID 3)
MALFUNCTION (ATOVR
—F)—
DTC DETECTING CONDITION:
Two consecutive trips with fault
TROUBLE SYMPTOM:
Ineffective engine brake with selector lever in“3”
10BG1Check any other DTC (besides DTC P0760) on
display.
10BG2Check inhibitor switch circuit.
DTC P0705, 2-7 [T10AT0].>
10BG3Check gear position.
10BG4Check shift solenoid 1 circuit.
[T7E0].>
10BG5Check shift solenoid 2 circuit.
[T7D0].>
10BG6Check shift solenoid 3 circuit.
[T7C0].>
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
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Page 2077 of 2890
WIRING DIAGRAM:
OBD0613
10BG1CHECK ANY OTHER DTC (BESIDES DTC
P0760) ON DISPLAY.
: Is there any other DTC on display?
: Inspect relevant DTC using“10. Diagnostics Chart
with Trouble Code, 2-7 [T1000]”.
: Go to step10BG2.
10BG2
CHECK INHIBITOR SWITCH CIRCUIT.
: Is there any trouble in inhibitor switch cir-
cuit?
NOTE:
For the diagnostic procedure on inhibitor switch circuit,
refer to 2-7 [T10AT0].
: Repair or replace inhibitor switch circuit.
: Go to step10BG3.
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10. Diagnostics Chart with Trouble Code
Page 2078 of 2890

OBD0145A
10BG3
CHECK GEAR POSITION.
1) Turn ignition switch to OFF.
2) Connect the Subaru select monitor to data link connec-
tor.
3) Lift-up or raise the vehicle and support with safety
stands.
CAUTION:
On AWD models, raise all wheels off ground.
4) Start and warm-up the engine and transmission.
H2M1150
5) Subaru select monitor switch to ON.
6) Select AT mode using function key.
Press the function key [/], and change to AT mode.
7) Press the function key [0].
G3M0152
8) Designate mode using function key.
Function mode for AT: F10
OBD0615
9) Move selector lever to“D”and drive the vehicle.
10) Read data on Subaru select monitor.
: Does gear position change according to
throttle position and vehicle speed?
: Go to next.
: Go to step10BG4.
: Is there poor contact in TCM connector?
: Repair poor contact in TCM connector.
: Go to next.
: Is there any mechanical trouble in automatic
transmission?
: Repair or replace automatic transmission.
: Replace TCM.
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10. Diagnostics Chart with Trouble Code
Page 2079 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 10BG4
CHECK SHIFT SOLENOID 1 CIRCUIT.
: Is there any trouble in shift solenoid 1 cir-
cuit?
NOTE:
For the diagnostic procedure on shift solenoid 1 circuit,
refer to 3-2 [T7E0].
: Repair or replace shi SUBARU LEGACY 1996 Service Repair Manual 10BG4
CHECK SHIFT SOLENOID 1 CIRCUIT.
: Is there any trouble in shift solenoid 1 cir-
cuit?
NOTE:
For the diagnostic procedure on shift solenoid 1 circuit,
refer to 3-2 [T7E0].
: Repair or replace shi](/manual-img/17/57433/w960_57433-2078.png)
10BG4
CHECK SHIFT SOLENOID 1 CIRCUIT.
: Is there any trouble in shift solenoid 1 cir-
cuit?
NOTE:
For the diagnostic procedure on shift solenoid 1 circuit,
refer to 3-2 [T7E0].
: Repair or replace shift solenoid 1 circuit.
: Go to step10BG5.
10BG5
CHECK SHIFT SOLENOID 2 CIRCUIT.
: Is there any trouble in shift solenoid 2 cir-
cuit?
NOTE:
For the diagnostic procedure on shift solenoid 2 circuit,
refer to 3-2 [T7D0].
: Repair or replace shift solenoid 2 circuit.
: Go to step10BG6.
10BG6
CHECK SHIFT SOLENOID 3 CIRCUIT.
: Is there any trouble in shift solenoid 3 cir-
cuit?
NOTE:
For the diagnostic procedure on shift solenoid 3 circuit,
refer to 3-2 [T7C0].
: Repair or replace shift solenoid 3 circuit.
: Go to next.
: Is there poor contact in TCM connector?
: Repair poor contact in TCM connector.
: Go to next.
: Is there any mechanical trouble in automatic
transmission?
: Repair or replace automatic transmission.
: Replace TCM.
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10. Diagnostics Chart with Trouble Code
Page 2080 of 2890
B2M0667
BH: DTC P0763
—SHIFT SOLENOID C (SHIFT SOLENOID 3)
ELECTRICAL (ATOVR)—
DTC DETECTING CONDITION:
Two consecutive trips with fault
TROUBLE SYMPTOM:
Ineffective engine brake with selector lever in“3”
10BH1Check DTC P0763 on display.
Check shift solenoid 3 circuit.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
WIRING DIAGRAM:
OBD0452
10BH1
CHECK DTC P0763 ON DISPLAY.
: Does the Subaru select monitor or OBD-II
general scan tool indicate DTC P0763?
: Check shift solenoid 3 circuit.
NOTE:
For the diagnostic procedure on shift solenoid 3 circuit,
refer to 3-2 [T7C0].
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10. Diagnostics Chart with Trouble Code