SUBARU LEGACY 1995 Service Repair Manual

OBD0615
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.
5) Subaru select monitor switch to ON.
6) Designate mode using function key.
Function mode for AT: F10
7) Move selector lever to“D”and drive the vehicle.
8) Read data on Subaru select monitor.
: Change gear position according to throttle
position and vehicle speed.
: Go to next.
: Go to step 4.
: 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 with a new one.
4
CHECK SHIFT SOLENOID 1 CIRCUIT.
: Is there any trouble in shift solenoid 1 cir-
cuit?
: Repair or replace shift solenoid 1 circuit.
: Go to step 5.
5
CHECK SHIFT SOLENOID 2 CIRCUIT.
: Is there any trouble in shift solenoid 2 cir-
cuit?
: Repair or replace shift solenoid 2 circuit.
: Go to step 6.
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11. Diagnostics Chart with Trouble Code

6
CHECK SHIFT SOLENOID 3 CIRCUIT.
: Is there any trouble in shift solenoid 3 cir-
cuit?
: 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 with a new one.
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11. Diagnostics Chart with Trouble Code

OBD0450
BB: DTC P0763
—SHIFT SOLENOID C (SHIFT SOLENOID 3)
ELECTRICAL (OVR)—
DESCRIPTION:
Refer to“BA: DTC P0760—SHIFT SOLENOID C MAL-
FUNCTION—[T11BA0]”.
DTC DETECTING CONDITION:

Two consecutive trips with fault
TROUBLE SYMPTOM:

Ineffective engine brake with selector lever in“3”
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11. Diagnostics Chart with Trouble Code

1.Check harness connector between TCM and
shift solenoid 3.
2.Check shift solenoid 3’s ground line.
3.Check shift solenoid 3.
4.Check output signal emitted from TCM.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. <Ref. to
[T3D0] and [T3E0].>
WIRING DIAGRAM:
OBD0452
NOTE:
For the diagnostic procedure on shift solenoid 3 circuit,
refer to“3-2 [T7C0]”.



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11. Diagnostics Chart with Trouble Code

OBD0458
BC: DTC P1100
—STARTER SWITCH CIRCUIT
MALFUNCTION (ST
—SW)—
DTC DETECTING CONDITION:

Two consecutive trips with fault
TROUBLE SYMPTOM:

Failure of engine to start
1.Check operation of starter motor.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. <Ref. to
[T3D0] and [T3E0].>
WIRING DIAGRAM:
OBD0098
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11. Diagnostics Chart with Trouble Code

1
CHECK OPERATION OF STARTER MOTOR.
: Turn ignition switch to“ST”to ensure that
starter motor operates.
NOTE:

On AT vehicles, place the inhibitor switch in the“P”or“N”
position.

On MT vehicles, depress the clutch pedal.
: Diagnose starter motor circuit <Ref. to [T9B0].>
: Repair open circuit or poor contact in ECM con-
nector.
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11. Diagnostics Chart with Trouble Code

OBD0466
BD: DTC P1101
—NEUTRAL POSITION SWITCH CIRCUIT
MALFUNCTION [MT VEHICLES] (N
—SW)—
DTC DETECTING CONDITION:

Two consecutive trips with fault
TROUBLE SYMPTOM:

Erroneous idling
1.Check input signal for ECM.
2.Check neutral position switch.
3.Check harness connector between ECM and
neutral position switch.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. <Ref. to
[T3D0] and [T3E0].>


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11. Diagnostics Chart with Trouble Code

WIRING DIAGRAM:
OBD0467
OBD0468A
1
CHECK INPUT SIGNAL FOR ECM.
1) Turn ignition switch to ON.
2) Measure voltage between ECM and body.
: Connector & terminal
(B84) No. 78—Body / 5.0±0.5 V (Neutral
position)
(B84) No. 78—Body / 0 V (Other positions)
: Go to next.
: Go to step 2.
: Is there poor contact in ECM connector?
: Repair poor contact in ECM connector.
: Replace ECM with a new one.
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11. Diagnostics Chart with Trouble Code

OBD0469A
2
CHECK NEUTRAL POSITION SWITCH.
1) Turn ignition switch to OFF.
2) Disconnect connector from transmission harness.
3) Measure resistance between connector terminals of
transmission harness.
: Connector & terminal
(T2) No. 1—No. 2 / 1 MΩ, or more (Neutral
position)
(T2) No. 1—No. 2 / 10Ω, or less (Other
positions)
: Go to step 3.
: Repair transmission harness or replace neutral
position switch.
OBD0470A
3CHECK HARNESS CONNECTOR BETWEEN
ECM AND NEUTRAL POSITION SWITCH.
1) Disconnect connector from ECM.
2) Measure resistance of harness connector between
ECM and neutral position switch.
: Connector & terminal
(B84) No. 78—(B25) No. 1 / 10Ω, or less
: Repair open circuit of harness between ECM con-
nector and neutral position switch connector.
: Go to next step.
OBD0471A
3) Measure resistance of harness connector between
ECM and body to make sure that circuit does not short.
: Connector & terminal
(B84) No. 78—Body / 1 MΩ, or more
: Repair short circuit of harness between ECM con-
nector and neutral position switch connector.
: Go to next step.
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11. Diagnostics Chart with Trouble Code

OBD0472A
4) Measure resistance of harness connector between neu-
tral position switch and body.
: Connector & terminal
(B25) No. 2—Body / 10Ω, or less
: Go to next.
: Repair open circuit of harness between neutral
position switch connector and body.
: Is there poor contact in neutral position
switch connector?
: Repair poor contact in neutral position switch con-
nector.
: Replace ECM with a new one.
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11. Diagnostics Chart with Trouble Code