1996 SUBARU LEGACY transmission

ON-BOARD
DIAGNOSTICS
II
SYSTEM
trylaKOi
2-7

11
.
Diagnostics
Chart
with
Trouble
Code

BK
:
DTC
P1702

-
AUTOMATIC
TRANSMISSION
DIAGNOSIS

INPUT
SIGNAL
CIRCUIT
MALFUNCTION

(ATDIAG)
-

WIRING
DIAGRAM
:

B84B55

>>
TCMECM

884B55

1
2
34
U
56
U
78
U
0
171112
1
2Q
212223
1
2425262
7
28293
45
4647
7
1
T
849
505152
!
N9
1
1
55
5657
1
2
3
4
5
6
78
7172
74757677
81
2
83
9
10111213141516

B2M0614

NOTE
:

For
the
diagnostic
procedure
on
automatic
transmission

diagnosis
input
signal
circuit
malfunction
(DTC
P1702),

referto
2-7
[T10BM0]*2
.

129

s-$
[D601]
WIRING
DIAGRAM

6
.
Wiring
Diagram

No
.
Load

MB-2
Powerwindow
circuit
breaker

Engine
control
module

Fuel
pump
relay
MB-3
Main
relay

OBD-II
service
connector

MB-4A/C
relay
holder

MB-6
Headlight
LH

Diode
(Lighting)

Lighting
switch

Combination
meter
M
B_$

Headlight
RH

Combination
meter

Door
lock
timer

MB-9
Luggage
room
light

Radio

Room
light

MB-10
A/C
relay
holder

ALT-1
Combination
meter

IG
A/C
relay
holder

Cruise
control
module

ST
Engine
control
module

Inhibitor
switch

FB-2
Diode
(A/C)

Sub
fan
motor
FB-3
Sub
fan
relay-2

Engine
control
module

Fuel
pump
relay
FB-4
Ignition
coil

Transmission
control
module

Side
marker
light
LH
FB-6
Side
marker
light
RH

FB-7Door
lock
timer

FB-9Hazard
switch

AT
shift
lock
control
module
FB-10
Key
warning
switch

Power
antenna

FB-11
Radio

FB-12
Cigarette
lighter

FB-13
Remote
control
rearview
mirrorswitch

AT
shift
lock
control
module

Combination
switch
Front
washer
motor
FB-14
Front
wipermotor

Rear
washer
motor

Rear
wipermotor

Rear
wiper
relay

FB-15Transmission
control
module

Na
Load

Rear
defogger

FB-16
Rear
defogger
condenser

Reardefogger
switch

FB-17
Rear
defogger
switch

FB-18
AT
shift
lock
control
module

Inhibitor
switch

FB-19
Hazard
switch

Combination
meter
FB-20
Mode
control
panel
FB-21
Combination
meter
(Airbag)

Blower
motor
relay

Check
connector

FB-22
FRESH/RECIRC
actuator

Mode
actuator

Powerwindow
relay

Seat
belt
timer

FB-23
Airbag
.
control
module

FB-24
Airbag
control
module

FB-25
Lighting
switch

FB-26
Parking
switch

FB-27
Parking
switch

FB-28
Illumination
light

FB-29
Illumination
light

FB-30
Stop
light
switch

Stop
&
brake
switch

FB-31
Horn
relay

FB-32
Blower
motor
relay

FB-33
Parking
switch

License
plate
light
LH

License
plate
light
RH

FB-34
Rear
combination
light
LH

Rear
combination
light
RH

Rear
finisher
light
LH

Rear
finisher
light
RH

FB-35
Cruise
control
main
switch
Cruise
control
module

6-3
I113so2l
WIRING
DIAGRAM
6
.
Wiring
Diagram

Shield
joint
connector

fl
:
B54

b
:
855

c
:
B56

E3
B22

E2
821

-(California
momodel)

GE
B3

Mass
air
flowsensor

c
:
i14
it
836

Combination
5~f6BR
BRA,
meter

B76

Test
mode
connector

OBD-II
Service
connector

Bl2

-0-~
Inhibitor
switch

(ED
(
JD
Transmission

884

i

46
Engine
control
module

Bl3

LM
Ignitor

879
Chec
k
connector

B78
Data
link
connector

(g
)(Green)
B53
83
(Gray)
(g
)(Gray)
B78
(Ye
I
low)
B54
B
I
eck>

1234
12345
1
2345656789
1
7
1
8
1
9
1
10
11
41
5112

Bl2
(Grey)
Blt
(Gray)

B2l
(L
i
ght
i
l4
B79
(Grey)
B22
(L
1
ght
B55
(B
I
ac
k)B40
(Gray)
gray)
gray)

1234
1234
5678
12345678
1
23
4S67
P1
121-4'i'5
9
1
10
12
1
3
1
4
1
5
1
6
f
7~81
0
1
11
1
12
1
13
1
8
1,
9
0l
2
3t
3141516
9
013112
3456
9101
11121314L51b

B56
(B
I
ac
k)
O(Black)
884
(L
(
ght
b
I
ue)

1
2
345678
9l0
111213141516
171B
19
20
2122
232425
26
27282930
3132
3334353637383940
4142
4344

1
2
34
S678
9
L0
1
2
3
456
7
89
10
45
1
46
1
47
1
484950
51
52
p
354555657
S8
5960
6162
63
1
64656667686970

11121314151617181920L1121314151b1718L9202122
717273747
767778
1
79
1
8
01
81
1
82
1
83
1
84858687888990919293949596

BUR04-02C

WIRING
DIAGRAM
[D605]
6-3

6
.
Wiring
Diagram

FWD
switch
(AWD)

B9

Data
link
connector

B78

OBD-11
service
connector

840

Droppig
Cruise
resistorcont
rol
modu
le

Check
connector

nP
B79
~
B4
~
B94

0E

o
L
-
-
-
------------------------
-

4
-~
C
-
-------------'---------_
_1'
H
0
U

c0
-
,
F
LO
N

B11
T4
1Ref
.
to
/Engine
F-
r
electrical
system
.

AT
contro
l
--'-'-"----

Veh
i
c
l
e
speed
i(Transmission)
___
.---------
-
--
sensor
1

ATF
temperature
sensor
Linepressuresolenoid

Lock-up
solenoid

AWD
solenoid

Shift
solenoid
1

Shift
solenoid
2

Shift
solenoid
3

a
:
B54

b
:
855

c
:
BSb
R
R
3
Throttleposition

She!
I
d
point
n,
821
E2

sensor

El3
connector
B84
B53
~-
--
-
-

contro
II
89
(BI
ac
k)
1
O
(Gray)
E13
(Brown)
B53B78
(Ye
II
Ow)
m
od
ule
1
~
F172-1
3
4
2
12
123
1234
56789

B54
(B
I
ac
k)
B79
(Grey)
B55
(B
I
ac
k)
B40
(Gray)

123456
789101112
1
23
4
67
8
910
1112
11
13
1
14
r,
1
1
1
2
1
3
1
4
1
5
161
7
1
8
1
910111213141516

12345678

910111213141516

(BD
(Gray)
(B
I
ack)
856894
(B
I
ack)
884
(L
i
ght
b
I
ue)

12
34
56
78
9l0
lll2
1314
1516
11181920212223242526272829303132333435363738394041424344

1
2
J3141
56789
10
4546474849
051
1
52
1
53
1
54
1
5
515
6
1
57'
58
4
60
6162
6364656667b8
b970

13142116
I1
1213141516171814
20
7172
73747576
7178
79
80
182
3
8586B7888990
9192
93
949596

BUR41-02B

11

r
Connecting
to

)r
Area
No
.
Name

C-4
D1
Front
doorcord
RH

ow
C-4
ABi
SRS
(Airbag)
harness

;k
C-4
Turn
&
hazard
module

.k
C-3
i1

C-3
i2
instrument
panel
wiring

un
C-3
i3
harness

e
C-3
i4

y
C-3
OBD-IIservice
connector

C-3
Power
window
circuit
breaker

C-3
Power
window
relay

;k
C-3
Illuminationcontrol
module

C-3
Seat
belt
timer

;n
B-4
Fuel
pump
relay

vn
B-4
Main
relay

;k
B-4
Horn
relay

B-4
Blower
relay

y
C-4
FIB
y
C-4
B-3
Shield
joint
connector
(AT)

.k
B-3

:k
B-3
Transmission
control
module

.k
B-3

:k
B-3
Shift-lock
control
module

B-4F44
i
h
B-4F45
Front
w
ring
arness

.k
B-3
Stop
light
switch

,k
B-3
Stop
8
brake
switch
(Withcruise
control)

:k
8-3
Cruise
control
sub
switch

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

869
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
876
T
d
B76
2
Green
8-2
875
e
connector
est
mo

877
7
B-2
Mode
actuator

B78
9
Yellow
B-2
Data
link
connector

B79
14
Gray
C-2
Check
connector

BBO
4
Blue
B-2
i20
Instrument
panel
wiring
harness

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

B82
6
Black
B-2
Diagnosisconnector

BB3
4
C-1
Shield
joint
connector
(EIG)

BBQ
96Lightblue
C-2
Engine
control
module

B85
4
Brown
B-3
Diode
(Lighting)

B86
4
Black
B-1
Blower
motor
resistor

887
2
Black
B-1
Blower
motor

888
3
Black
B-1
Evaporatorthermoswitch

B90
2
Green
B-4
R50
Room
light
cord

B91
5
B-1
FRESHIRECIRC
actuator

B92
8
B-1
Door
lock
timer

894
20
Black
B-1
Cruise
control
module

B97
56
B-4
R1
Rear
wiring
harness
(S.M
.J
.)

B101
24
B-1
D11
Front
door
cord
LH

8111
3
Gray
C-4FIB

`
:
Non-colored

4
.
BULKHEAD
WIRING
HARNESS
(IN
COMPARTMENT)

1
I
2
I
3
I
4

A

B

C

D

1
I
2
I
3
I
4

[oeo41

B6M0513A

A

B

C

iJ

23

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
.