1996 SUBARU LEGACY Torque converter

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T11aoj
2-7

11
.
Diagnostics
Chart
with
Trouble
Code

DTC

No
.

Abbreviation

(Subaru
select
monitor)
Item
Page

P0705
ATRNG
Transmissionrange
sensor
circuit
malfunction
108

P0710
ATF
Transmission
fluid
temperature
sensor
circuit
malfunction
109

P0720
ATVSP
Output
speed
sensor
(vehicle
speed
sensor
1)
circuit
malfunction
110

P0725
ATNE
Engine
speed
input
circuit
malfunction
111

P0731
ATGR1
Gear
1
incorrect
ratio

P0732
ATGR2
Gear
2
incorrect
ratio
1
2
P0733
ATGR3
Gear
3
incorrect
ratio
1

P0734
ATGR4
Gear
4
incorrect
ratio

P0740
ATLU
-
F
Torque
converter
clutch
system
malfunction
114

P0743
ATLU
Torque
converter
clutch
system
(duty
solenoid
B)
electrical
115

P0748
ATPL
Pressure
control
solenoid
(duty
solenoid
A)
electrical
116

P0753
ATSFTi
Shift
solenoid
A
(shift
solenoid
1)
electrical
117

P0758
ATSFT2
Shift
solenoid
B
(shift
solenoid
2)
electrical
118

P0760
ATOVR
-
F
Shift
solenoid
C
(shift
solenoid
3)
malfunction
119

P0763
ATOVR
Shift
solenoid
C
(shift
solenoid
3)
electrical
120

P1100
ST
-
SW
Starter
switch
circuit
malfunction
121

P1101
N/P
-
SW
Neutral
position
switch
circuit
malfunction
122

P1102
BR
Pressure
sources
switching
solenoid
valve
circuit
malfunction
123

P1103
TRQ
Engine
torque
control
signal
circuit
malfunction
124

P1500
FAN
-
1
Radiator
fan
relay
1
circuit
malfunction
125

P1502
FAN
-
F
Radiator
fan
function
problem
126

P1700
ATTH
Throttle
position
sensor
circuit
malfunction
127

P1701
ATCRS
Cruise
control
set
signal
circuit
malfunction
128

P1702
ATDIAG
Automatic
transmission
diagnosis
inputsignal
circuit
malfunction
I
129
75

2-7
[T11AV0]
ON-BOARD
DIAGNOSTICS
11
SYSTEM

11
.
Diagnostics
Chart
with
Trouble
Code

AV
:
DTC
P0740

-
TORQUE
CONVERTER
CLUTCH
SYSTEM

MALFUNCTION
(ATLU
-
F)
-

WIRING
DIAGRAM
:

Automatic
transmission

Duty
ATF
Vehicle
solenoid
temperature
speed
B
sensor
sensorl

854
Brake
Throttle

b~
B55
1
Ii
t
positions

856
B11
T4

B53

TCM

Inhibitor
switch
N
00
0

a

t
~
3
1

B12
T3

Combination
meter
Speedometer
ECM
circuit

B84

e
:
B54
b
:
855
c
:
B56BI1B53812
O

123456
123456712345678910
81

1
234
5
67
8
9101112
1234
5678

910
11
12
13141516
3132
33
3435
363738394
0
4142
4344
6970
58596061626364L
111
9
1
10
1
11
1
12
1
13
1
14
1
15
11
6
789
101112
1
11
1
12
1
13
1
14
1
15
1
16
1
171819
20
1314
I
I6
1
2349
10
1112
8485
86
87888990
91
E3
1
0
-
4
1
95
96
12

B2M0587

NOTE
:

For
the
diagnostic
procedure
on
torque
converter
clutch

system
malfunction
(DTC
P0740),
referto
2-7
[T10AV0]*2
.

114

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[r1iawo1
2-7

11
.
Diagnostics
Chart
with
Trouble
Code

AW
:
DTC
P0743

-
TORQUE
CONVERTER
CLUTCH
SYSTEM

(DUTY
SOLENOID
B)
ELECTRICAL
(ATLU)
-

WIRING
DIAGRAM
:

855
-

BII
T4

TCM

855

12345678
1911011121314t
16

B11

131421516
OBD0413
I

NOTE
:

For
the
diagnostic
procedure
on
torque
converter
clutch

system
electrical
(DTC
P0743),
refer
to
2-7
[T10AW0]*2
.

115

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T10A0]
2-7

10
.
Diagnostics
Chart
with
Trouble
Code

DTC

No
.

Abbreviation

(Subaru
select
monitor)Item
Page

P0500
VSP
Vehicle
speed
sensor
malfunction
'1

P0505
ISC
Idle
control
system
malfunction
`1

P0506
ISC
-
L
Idle
control
system
RPM
lower
than
expected
'1

P0507
ISC
-
H
Idle
control
system
RPM
higher
than
expected
'1

P0600
-
Serial
communication
link
malfunction
`1

P0601
RAM
Internal
control
module
memory
check
sum
error
'1

P0703
ATBRK
Brake
switch
input
malfunction
'1

P0705
ATRNG
Transmissionrange
sensor
circuit
malfunction
`1

P0710
ATF
Transmission
fluid
temperature
sensor
circuit
malfunction
'1

P0720
ATVSP
Output
speed
sensor
(vehicle
speed
sensor
1)
circuit
malfunction
'1

P0725
ATNE
Engine
speed
input
circuit
malfunction
'1

P0731
ATGR1
Gear
1
incorrect
ratio

P0732
ATGR2
Gear
2
incorrect
ratio
"
1
P0733
ATGR3
Gear
3
incorrect
ratio

P0734
ATGR4
Gear
4
incorrect
ratio

P0740
ATLU
-
F
Torque
converter
clutch
system
malfunction
1

P0743
ATLU
Torque
converter
clutch
system
electrical
*1

P0748
ATPL
Pressure
control
solenoid
electrical
'1

P0753
ATSFTi
Shift
solenoid
A
electrical
`1

P0758
ATSFT2
Shift
solenoid
B
electrical
'1

P0760
ATOVR
-
F
Shift
solenoid
C
malfunction
'1

P0763
ATOVR
Shift
solenoid
C
electrical
'1

P1100
ST-SW
Starter
switch
circuit
malfunction
'1

P1101
N/P
-
SW
Neutral
position
switch
circuit
malfunction
[MT
vehicles]
'1

P1101
N/P
-
SW
Neutral
position
switch
circuit
malfunction
[AT
vehicles]
1

P1102
BR
Pressure
sources
switching
solenoid
valve
circuit
malfunction
'1

P1103
TRQ
Engine
torque
control
signal
circuit
malfunction
`1

P1400
PCVSOL
Fueltank
pressure
control
solenoid
valve
circuit
malfunction
38

P1401
PCV
-
FFueltank
pressure
control
system
function
problem
44

P1402
FIVL
Fuel
level
sensor
circuit
malfunction
46

P1500
FAN
-
1
Radiator
fan
relay
1
circuit
malfunction
'1

P1502
FAN
-
F
Radiator
fan
function
problem
'1

P1700
ATTH
Throttle
position
sensor
circuit
malfunction
for
automatic
transmission
'1

P1701
ATCRS
Cruise
control
set
signal
circuit
malfunction
for
automatic
transmission
'1

P1702
ATDIAG
Automatic
transmission
diagnosis
inputsignal
circuit
malfunction
'1

P0461'2
EXERR22
Fuel
level
sensor
circuit
range/performance
problem
56

"1
:
<
Ref
.
to
2-7
[T11A0]
.*4
>

'2
:
Only
OBD-II
general
scan
tool
displays
DTC
.

B2M0313
7) Remove front exhaust pipe and center exhaust pipe
from hanger bracket.
CAUTION:
Be careful not to pull down front exhaust pipe and
center exhaust pipe.
B2M0060
8) Separate front catalytic converter from front exhaust
pipe and center exhaust pipe.
B2M0060
B: INSTALLATION
CAUTION:
Replace gaskets with new ones.
1) Install front catalytic converter to front exhaust pipe and
center exhaust pipe.
Tightening torque:
30±5 N⋅m (3.1±0.5 kg-m, 22.4±3.6 ft-lb)
B2M0313
2) Install front exhaust pipe and center exhaust pipe.
And temporarily tighten bolt which installs center exhaust
pipe to hanger bracket.
B2M0054
3) Tighten bolts which hold front exhaust pipe onto cylin-
der heads.
Tightening torque:
30±5 N⋅m (3.1±0.5 kg-m, 22.4±3.6 ft-lb)
3
2-1SERVICE PROCEDURE
1. Front Catalytic Converter

B2M0055
4) Install center exhaust pipe to rear exhaust pipe.
Tightening torque:
18±5 N⋅m (1.8±0.5 kg-m, 13.0±3.6 ft-lb)
B2M0313
5) Tighten bolt which holds center exhaust pipe to hanger
bracket.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0312
6) Connect rear oxygen sensor connector. (Except Califor-
nia 2200 cc model)
B2M0725
7) Lower the vehicle.
8) Connect rear oxygen sensor connector. (California
2200 cc model)
B2M0724
9) Connect front oxygen sensor connector.
4
2-1SERVICE PROCEDURE
1. Front Catalytic Converter

B2M0421
2) Install center exhaust pipe to front catalytic converter.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0055
3) Install center exhaust pipe to rear exhaust pipe.
Tightening torque:
18±5 N⋅m (1.8±0.5 kg-m, 13.0±3.6 ft-lb)
B2M0313
4) Tighten bolt which holds center exhaust pipe to hanger
bracket.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0312
5) Connect rear oxygen sensor connector. (Except Califor-
nia 2200 cc model)
G2M0375
3. Canister
A: REMOVAL AND INSTALLATION
1. 2200 cc FWD AND 2500 cc MODEL
1) Disconnect canister hoses from evaporation pipes.
2) Remove canister with bracket.
6
2-1SERVICE PROCEDURE
2. Rear Catalytic Converter - 3. Canister

B2M0421
2) Install center exhaust pipe to front catalytic converter.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0055
3) Install center exhaust pipe to rear exhaust pipe.
Tightening torque:
18±5 N⋅m (1.8±0.5 kg-m, 13.0±3.6 ft-lb)
B2M0313
4) Tighten bolt which holds center exhaust pipe to hanger
bracket.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0312
5) Connect rear oxygen sensor connector. (Except Califor-
nia 2200 cc model)
G2M0375
3. Canister
A: REMOVAL AND INSTALLATION
1. 2200 cc FWD AND 2500 cc MODEL
1) Disconnect canister hoses from evaporation pipes.
2) Remove canister with bracket.
6
2-1SERVICE PROCEDURE
2. Rear Catalytic Converter - 3. Canister