SUBARU LEGACY 1996 Service Repair Manual

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

830
24
C-4
D1
Front
door
cord
RH

831
7
Yellow
C-4
A81
SRS
(Airbag)
harness

B32
3
Black
C-4
Turn
&
hazard
module

B36
22
Black
C-3
i1

B37
22
C-3
i2
Instrument
panel
wiring

B38
22
Brown
C-3
i3
harness

B39
20Blue
C-3
i4

B40
16
Gray
C-3
OBD-II
service
connector

B41
2
C-3
Power
window
circuit
breaker

842
4
C-3
Power
window
relay

B43
6
Black
C-3
Illumination
control
module

B44
8
C-3
Seat
belt
timer

B46
4
Green
B-4
Fuel
pump
relay

B47
6
Brown
B-4
Main
relay

B49
3
Black
B-4
Horn
relay

850
4
B-4
Blower
relay

851
11
Gray
C-4
FIB
B52
12
Gray
C-4

853
4
B-3
Shield
joint
connector
(AT)

B54
12
Black
B-3

B55
16
Black
B-3
Transmission
control
module

B56
20
Black
B-3

B57
12
Black
B-3
Shift-lock
control
module

861
B
B-4
F44

B62
20
B-4
F45
Front
wiring
harness

B64
2
Black
B-3
Stop
light
switch

B65
4
Black
B-3
Stop
&
brake
switch(Withcruise
control)

B68
5
i
Black
i
B-3
Cruise
control
sub
switch

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

B69
11
Black
C-3

B70
9
C-3
Combination
switch

B71
8
8-3

B72
6
Black
C-3
Ignition
switch

B73
2
Black
B-3
Key
lock
solenoid

B74
2
Black
B-3
Key
warning
switch

B75
2
Green
B-2
B76

B76
2
Green
&2
B75
Test
mode
connector

B77
7
B-2
Made
actuator

B78
9
Yellow
B-2
Data
link
connector

B79
14
Gray
C-2
Check
connector

B80
4
Blue
B-2
i20
Instrumentpanel
wiring
harness

B81
1
x
2
B-2
Diagnosis
terminal
(Ground)

B82
6
Black
B-2
Diagnosis
connector

B83
4
C-1
Shield
joint
connector
(E!G)

884
96
Light
blue
C-2
Engine
control
module

885
4
Brown
B-3
Diode
(Lighting)

B86
4
Black
B-1
Blower
motor
resistor

887
2
Black
B-1
Blower
motor

B88
3
Black
8-t
Evaporator
thermoswitch

890
2
Green
B-4
R50
Room
light
cord

B91
5B-1
FRESHIRECIRC
actuator

892
8
B-1
Door
lock
timer

B94
20
Black
B-1
Cruise
control
module

B97
56
B-4
R1Rear
wiring
harness
(S
.M
.J
.)

B101
24
B-1
D11
Front
doorcord
LH

13111
3
Gray
C-4
FIB

`
:
Non-colored

4
.
BULKHEAD
WIRING
HARNESS
(IN
COMPARTMENT)

A

B

C

1]

4

23

3-2
[TSAO1
AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL

6
.
Diagnostic
Chart
for
On-board
Diagnostics
System

6
.
Diagnostic
Chart
for
On-board

Diagnostics
System

A
:
BASICDIAGNOSTIC
PROCEDURE

TROUBLE
OCCURS
.

INTERVIEW

1
.
Oil
level
check
<
Ref
.
to
3-2

[W2A1],
[W2A2]
.*1
>

2
.
Oil
leak
check
<
Ref
.
to
3-2

[W2A3]
.x`r1
>

3
.
Brake
band
adjustment
<
Ref
.

to
3-2
[W2B1]
.t`r1
>

4
.
Stall
test
<
Ref
.
to
3-2

[W3A0]
.*1
>

5
.
Line
pressure
test
<
Ref
.
to
3-2
[W3C0]
.*1
>

6
.
Transfer
clutch
pressure
test
<
Ref
.
to
3-2
[W3D0]
.*1
>

7
.
Time
lag
test
<
Ref
.
to
3-2

[W3B0]
.*1
>

8
.
Road
test

<
Ref
.
to
3-2
[W3E0]
.*1
>

BASIC
CHECKS

TROUBLE
INDICATION
(AT
OIL
TEMP
INDICATOR)

Not
indicated
.

Indicated
.

ON-BOARD

DIAGNOSTICS

Inspection
using
General

Diagnostic
Table
[T900]*I
.

I

Inspection
using
Diagnostic

Chart
with
Select
Monitor

[T800]*1,
*2
.

Not
OK

No
trouble
code

Trouble
code

Repair
.

CLEAR
MEMORY

Confirmation
test
Trouble
code
(ON-BOARD
DIAGNOSTICS)

No
trouble
code

End

Check
in

accordance

trouble
code

[T700]*1,
*2
.

2

AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL
[T6D1]
3-2

6
.
Diagnostic
Chart
for
On-board
Diagnostics
System

D
:
LIST
OF
TROUBLE
CODE

1
.
TROUBLE
CODE

Trouble
code
Item
Content
of
diagnosis
Abbr
.

(Select
monitor)
Page

11
Duty
solenoid
A
Detects
open
or
shorted
drive
pLDTY
-
circuit,
as
well
asvalve
seizure
.

12
Duty
solenoid
B
Detects
open
or
shorted
drive
LUDTY
-
circuit,
as
well
asvalve
seizure
.

13
Shift
solenoid
3
Detects
open
or
shorted
drive
OVR
-
circuit,
as
well
as
valve
seizure
.

14
Shift
solenoid
2
Detects
open
or
shorted
drive
SFT2
-
circuit,
as
well
as
valve
seizure
.

15
Shift
solenoid
1
Detects
open
or
shorted
drive
SFTi
-
circuit,
as
well
as
valve
seizure
.

21
ATF
temperature
sensor
Detects
open
or
shorted
input
ATFT
-
signal
circuit
.

22
Mass
air
flowsignalDetects
open
or
shorted
input
AFM
4
signal
circuit
.

23
Engine
speed
signal
Detects
open
or
shorted
input
EREV
6
signal
circuit
.

24
Duty
solenoid
C
Detects
open
or
shorted
drive
4WDTY
-
circuit,
as
well
as
valve
seizure
.

25
Torque
control
signal
Detects
open
or
shorted
input
TQ
.CT8
signal
circuit
.

31
Throttle
position
sensor
Detects
open
or
shorted
input
THV
10
signal
circuit
.

32
Vehicle
speed
sensor
1
Detects
open
or
shorted
input
VSP1
-
signal
circuit
.

33
Vehicle
speed
sensor
2Detects
open
or
shorted
input
VSP2
-
signal
circuit
.

3-2
[vi-1101
AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL

7
.
DiagnosticChart
with
Trou
ble
Code

7
.
Diagnostic
Chart
with
Trouble
Code

H
:
TROUBLE
CODE
22

-
MASS
AIR
FLOW
SIGNAL
-

DIAGNOSIS
:

Input
signal
circuit
of
TCM
from
ECM
is
open
or
shorted
.

1
.
Check
trouble
code
onengine
side
.
Not
OK
<
Ref
.
to
2-7
On-Board
Diagnostics
II
System

[T10B0]
.*2
>

OK

2
.
Check
harness
connector
between
TCM
and
Not
OK
ECM
.

OK

3
.
Check
input
signal
for
TCM
.
Not
OK
OK

Clear
memory
->
Confirmation
test-+
Not
OK
->

Repair
TCM
connector
terminal
poor
contact
.
~
Check
for
cause
of
trouble
in
engine
.

Repair
TCM
connector
terminal
poor
contact
.
~
*
Replace
TCM
.

854

TCM

B54
O

9
10
Ill
12
1314
U
15163132
3343536373839
OG14243G4
123456
V
1
59
~
0
~
1
1
6
4
63
~
46$6
~
7
1
6
6970
J
11
7
1
8
1
9
1
10
1
11
1
12
1
4
5687
99091923949596

B3M0475
I

1
.
CHECK
TROUBLE
CODE
ON
ENGINE
SIDE
.

Using
Subaru
select
monitor
or
OBD-general
scan
tool,

check
trouble
code
of
mass
air
flow
sensor
on
engine
side
.

4

AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL
[T7H3]
3-2

7
.
Diagnostic
Chart
with
Trouble
Code

B54
123456
7
8
9
01112

D

L
.0
Q
0>

B3M02248

B54

161514
3
H87
1211
10
9

D

_E)VSj

83M0222B

Data
link
connector
(for
Subaru
select
monitor
and
OBD-II
general
scan
tool)

/
'
/
i
Data
link
connector
(for
Subaru
select
monitor
\
,only)

ls%y~
x~/

OBD0145A
I

AFM
(F15)

0
.6V

B3M0370

2
.
CHECK
HARNESS
CONNECTOR
BETWEEN
TCM

AND
ECM
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connectors
from
TCM
and
ECM
.

3)
Measure
resistance
of
harness
connector
between

TCM
and
ECM
.

Connector
&
terminal
I
Specifiedresistance
:

(B54)
No
.
9
-
(B84)
No
.
47
l
1
S2,
orless

4)
Measure
resistance
of
harness
connector
between

TCM
and
body
to
make
sure
that
circuit
does
not
short
.

Connector
&
terminal
/
Specified
resistance
:

(854)
No
.
9
-
Body
11
MSZ,
or
more

3
.
CHECK
INPUT
SIGNAL
FOR
TCM
.

1)
Connect
connectors
to
TCM
and
ECM
.

2)
Start
the
engine
.
(engine
idling
after
warm-up)

3)
Measure
signal
voltage
between
TCM
connector
termi-

nal
and
body
.

Connector
&
terminal
/
Specified
voltage
:

Engine
warm-up
;

(B54)
No
.
9
-
Body
l
0
.5
-
1
.22
V
9
Using
Subaru
select
monitor
:

(1)
Connect
connectors
to
TCM
and
ECM
.

(2)
Turn
ignition
switch
to
OFF
.

(3)
Connect
the
Subaru
select
monitor
to
data
link

connector
.

(4)
Turn
ignition
switch
to
ON
and
Subaru
select

monitor
switch
to
ON
.

(5)
Start
andwarm-up
the
engine
.

(6)
Read
data
onSubaru
select
monitor
.

(7)
Designate
mode
using
function
key
.

Function
mode
:
F15

SPECIFIED
DATA
:

0
.5
-
1
.22
V
(Engine
warm-up)

5

3-2
R7101
AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL

7
.
Diagnostic
Chart
with
Trouble
Code

I
:
TROUBLE
CODE
23

-
ENGINE
SPEED
SIGNAL
-

DIAGNOSIS
:

Engine
speed
input
signal
circuit
is
open
or
shorted
.

TROUBLE
SYMPTOM
:

&#34;
No
lock-up
(after
engine
warm-up)

&#34;
AT
OIL
TEMP
indicator
remains
on
when
vehicle
speed

is
&#30;
0
&#30;
.

1
.
Check
harness
and
connector
between
TCM
Not
OK

and
ECM
.

Repair
or
replace
harnessconnectors
.

OK

2
.
Check
inputsignal
for
TCM
.
OK

Not
OK

&#34;
Repair
TCM
connector
terminal
poor
contact
.

&#34;
Replace
TCM
.

Conduct
diagnostics
for
ECM's
ignition
system
.

B54884

ECM
TC
M

U
B54
B84

9
10
11
12
13141516

1
1
1
2
1
3
1
4
1
5
1
6
3132
3334
35
3637383940
4142
4344
1
58
1
59
1
60
1
61
1
6263
1
7
8
9
1011
12889
84
85
8687
88
8990
9192
9394
95
96

B2M0585

6

AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL
[T7i21
3-2

7
.
Diagnostic
Chart
with
Trouble
Code

OBD0410A
I

Data
link
connector
(for
Subaru
select
monitor
and
OBD-II
general
scan
tool)

/'
/
/
i
~1
i
Data
link
connector
(for
Subaru
select
monitor

\
only)

lqo~
,
/"~///

OBD0145A
I

EREV
(F06)

1,500
rpm

G3M0727

1
.
CHECK
HARNESS
AND
CONNECTOR
BETWEEN

TCMAND
ECM
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connectors
from
TCM
and
ECM
.

3)
Measure
resistance
of
harness
connector
between

TCM
and
ECM
.

Connector
&
terminal
l
Specified
resistance
:

(854)
No
.
5
-
(B84)
No
.
64
I1
S2,
or
less

4)
Measure
resistance
of
harness
connector
between

TCM
and
body
to
make
sure
that
circuit
does
not
short
.

Connector
&
terminal
l
Specifiedresistance
:

(B54)
No
.
5
-
Body
I
1
MSS,or
more

2
.
CHECK
INPUT
SIGNAL
FOR
TCM
.

1)
Connect
connectors
to
ECM
and
TCM
.

2)
Turn
ignition
switch
ON
(with
engine
OFF)

3)
Measure
signal
voltage
for
TCM
.

Connector
&
terminal
l
Specified
voltage
:

(854)
No
.
5
-
Body
I
70
.5
V,
or
more

9
Using
Subaru
select
monitor
:

(1)
Connect
connectors
to
ECM
and
TCM
.

(2)
Turn
ignition
switch
to
OFF
.

(3)
Connect
the
Subaru
select
monitor
to
data
link

connector
.

(4)
Turn
ignition
switch
to
ON
and
Subaru
select

monitor
switch
to
ON
.

(5)
Start
and
warm-up
the
engine
.

(6)
Operate
at
constant
engine
speed
.

(7)
Read
data
onSubaru
select
monitor
.

(8)
Designate
mode
using
function
key
.

Function
mode
:
F06

SPECIFIED
DATA
:

Same
astachometer
reading
(in
combination
meter)

7

3-2
rr7KO1
AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL

7
.
Diagnostic
Ch
art
with
Trouble
Code

K
:
TROUBLE
CODE
25

-
TORQUE
CONTROL
SIGNAL
-

DIAGNOSIS
:

&#34;
Torque
control
signal
is
not
emitted
from
TCM
.

&#34;
The
signal
circuit
is
open
or
shorted
.

1
.
Check
harness
connector
between
TCM
and
Not
OK
ECM
.

OK

I
Repair
or
replace
harness
connectors
.

2
.
Check
output
signal
for
TCM
.
J
OK

Not
OK

Repair
ECM
connector
terminal
poor
contact
.

Replace
ECM
.

1
9
Repair
TCM
connector
terminal
poor
contact
.

B84B55

ECM
79
F6TCM

B84

12u34
u
56
u
78
u

171819
20
2122
23242526
2128
2930
454647484950
5152
5354555657

7172
7374757677787980
8182
83

B55

12345678

1
9
1
10
1
1
11213141516

82M0598
I

8

AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL
[r7K2]
3-2
7
.
DiagnosticChart
with
Trouble
Code

1
23
4a
u
ss
u
7
s
u
1718
9
21
24
5
46
7
9v51
2
316
4
05
71
2
5
70
1
2
1

ggq
.
-jB55
n
r_1
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
1
1112131
1516

B3M0478A

1
.
CHECK
HARNESS
CONNECTOR
BETWEEN
TCM
AND
ECM
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connectors
from
TCM
and
ECM
.

3)
Measure
resistance
of
harness
connector
between

TCM
and
ECM
.

Connector
&
terminal
l
Specifiedresistance
:

(855)
No
.
16
-
(B84)
No
.
79
/
1
S2,
orless

4)
Measure
resistance
of
harness
connector
between

TCM
and
body
to
make
sure
that
circuit
does
not
short
.

Connector
&
terminal
I
Specifiedresistance
:

(855)
No
.
16
-
Body
l
1
1140,
or
more

2
.
CHECK
OUTPUT
SIGNAL
FOR
TCM
.

1)
Connect
connectors
to
TCM
and
ECM
.

2)
Turn
ignition
switch
to
ON
.

3)
Measure
signal
voltage
between
TCM
connector
termi-

nal
and
body
.

Connector
&
terminal
l
Specifiedvoltage
:

(855)
No
.
16
-
Body
l
5
f
1
V

9

3-2[T7L0]
AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL

7
.
Diagnostic
Chart
with
Trouble
Code

1
.
Check
harness
connector
between
TCM
and

throttle
position
sensor
.

OK

2
.
Check
throttle
position
sensor
.

OK

1
3
.
Check
input
signal
for
TCM
.

Not
OK

4
.
Check
power
supply
tothrottle
position

sensor
.

OK

9
Repair
TCM
connector
terminal
poor
contact
.

e
Replace
TCM
.

Not
OK
j
Repair
or
replace
harnessconnectors
.

Not
OK
Replace
throttle
position
sensor
.

OK
~
9
Repair
TCM
connector
terminal
poor
contact
.

-~j9
Replace
TCM
.

Not
OK
,1
Repair
or
replace
harnessconnectors
.

E13

884
B84

112
34
U
56
U
78
U
171819
20
212223
24252627
28
2930
454647
48
49
50515253
1
54
1
55
1
5657
7172
73
74
757677787980
8182
83

L
:
TROUBLE
CODE
31

-
THROTTLE
POSITION
SENSOR
-

DIAGNOSIS
:

Input
signal
circuit
ofthrottle
position
sensor
is
open
or

shorted
.

TROUBLE
SYMPTOM
:

Shift
point
too
high
or
too
low
;
engine
brake
not
effected

in
"3"
range
;
excessive
shift
shock
;
excessive
tight
corner

"braking"

~~B56a~B54
821
E13

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789101112
5678
9101112
1
23
1112

B2M0613

10