1995 SUBARU LEGACY Service Repair Manual

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SUBARU LEGACY 1995  Service Repair Manual OBD0404
AQ: DTC P0725
—ENGINE SPEED INPUT CIRCUIT
MALFUNCTION (ATNE)—
DESCRIPTION:
The engine speed signal is sent to TCM from ECM. This
signal is used for lock-up clutch control and line pressure

Page 1490 of 2248

SUBARU LEGACY 1995  Service Repair Manual 1.Check harness connector between TCM and
ECM (MFI).
2.Check input signal for TCM.
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES. <Ref. to
[T3D0] and

Page 1491 of 2248

SUBARU LEGACY 1995  Service Repair Manual OBD0599
AR: DTC P0731
—GEAR 1 INCORRECT RATIO (GR
—1)—
OBD0600
AS: DTC P0732
—GEAR 2 INCORRECT RATIO (GR
—2)—
OBD0601
AT: DTC P0733
—GEAR 3 INCORRECT RATIO (GR
—3)—
OBD0602
AU: DTC P

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SUBARU LEGACY 1995  Service Repair Manual DTC DETECTING CONDITION:
Two consecutive trips with fault
TROUBLE SYMPTOM:
Shift point too high or too low; engine brake not effected
in“3”range; excessive shift shock; excessive tight corner

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SUBARU LEGACY 1995  Service Repair Manual WIRING DIAGRAM:
OBD0604
1CHECK ANY OTHER DTC (BESIDES DTC
P0731, P0732, P0733, P0734) ON DISPLAY.
: Is there any other DTC on display?
: Inspect relevant DTC using“11. Diagnostics Chart
with Trouble

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SUBARU LEGACY 1995  Service Repair Manual 2CHECK THROTTLE POSITION SENSOR CIR-
CUIT.
: Is there any trouble in throttle position sen-
sor circuit?
: Repair or replace throttle position sensor circuit.
: Go to step 3.
3
CHECK VEHICLE SPEED SEN

Page 1495 of 2248

SUBARU LEGACY 1995  Service Repair Manual OBD0605
AV: DTC P0740
—TORQUE CONVERTER CLUTCH SYSTEM
MALFUNCTION (LU
—F)—
DESCRIPTION:
The lock-up engaging and disengaging conditions are set
for each gear shift range, gear position and shift

Page 1496 of 2248

SUBARU LEGACY 1995  Service Repair Manual 1.Check any other DTC (besides DTC P0740) on
display.
2.Check duty solenoid B circuit. <Ref. to“3-2
[T7B0]”.>
3.Check throttle position sensor circuit. <Ref. to
“3-2 [T7L0]”.>
4.Check vehicle