sensor SUBARU LEGACY 1996 Service Repair Manual

WIRING
DIAGRAM
[Dsoso1
6-3

6
.
Wiring
Diagram

30
.
SRS
(AIRBAG
SYSTEM)

To
PowerSupply
Routing

FB-21

FUSE
Na
15

FB-23

FUSE
No
.8

FB-24
~

FUSE
Na
16

FB-22

FUSE
No
.15

Combination

m

t
r
te
Alrba
c
I
rcu7t
7A

I
nf
I
ator
4~
43)

Or
1
ver
side)
Inflator
(Passenger
g3~
side)

AB2
~
l

AB7
AB3
AB1-0

A88A89

AB6

i3
B38

Diagnosis
terminal

E

-
Ref-to
Engine
electrical
system
.

B79R

Checkconnector

BB2
-C17Diagnosis
'-CC~7
connector

O
:
A(rbagcord

Airbag
control
module

Drive
r
Cl
Electric
circui
t
_
ear
memory
sensor
G-sensor
Warning
Ii
g
ht
Die
nosi5
Impact
module
sensing
'
cricui

ConstantConstant
Back-upcurrent

-

currentSafety
cap
.citor
drive
circuit

T

drive
circuit
sensor

-6~

Booster

il3
B82
(B
I
ac
k)
831
(Ye
II
ova
879
(Grey)
i3
(Brown)

1
2
123
t
23
4567
1
345
6789L0
1
234
3456
1
4
151
6
1
78
910
1(1
1314
11121314116171819202122

BU86-02

17

cal
Wiring
Harness
and
Ground
Point

Connector
Connecting
to

Pole
Color
Area
No
.
Name

2
Brown
B-2
Pressure
sources
switching
solenoid

3
Black
B-2
Pressure
sensor

5
Gray
B-2
Mass
air
flow
sensor

2
Gray
B-2
AT
dropping
resistor

4
Gray
B-3
Cruise
control
pump

6B-3Front
wipermotor

2
Black
A-2
FWD
switch

16
Gray
B-3
T4
T
i
12
Gray
B-2
T3
ransmiss
on

6
Gray
B-3
Ignitor

1
Black
B-3
Starter
(Magnet)

2
Gray
B-2
Brake
fluid
level
switch
2
Black
B-3
Vehicle
speed
sensor

3
Dark
gray
B-2
Front
oxygen
sensor

4
B-2
T5
Rear
oxygen
sensor
cord
(Other
models)

4
B-2
Rear
oxygen
sensor
(California
model)

6Light
gray
B-2
E1
12Light
gray
B-2
E2Engine
wiring
harness

16Light
gray
B-2
E3

2
Back
B-3

3
B-3
MIB

1
Brown
B-3
2B-2
Rear
washer
motor

2f
Green
B-3Front
washer
motor

2
.
BULKHEAD
WIRING
HARNESS
AND
GROUND
POINT
(IN
ENGINE
ROOM)

2
I
a

B

C

-r
t
n

GB-4
GB-5

(
rbag
mode
)
B6M0086B

D

1
3
4
4
[D802]

B6M0587A

A

B

C

D

21

8
.
Electrical
Wiring
Harness
and
Ground
Point

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

131
2
Brown
B-2
Pressure
sources
switching
solenoid

B2
3
Black
B-2
Pressure
sensor

B3
5
Gray
B-2
Mass
air
slow
sensor
B4
2
Gray
B-2
AT
dropping
resistor

B7
4
Gray
B-3
Cruise
control
pump

B8
6B-3Front
wiper
motor

B9
2
Black
A-2
FWD
switch

B11
16
Gray
B-3
T4
T
B12
12
Gray
B-2
T3
ransmission

B13
6
Gray
B-3
Ignitor

B14
1
Black
B-3
Starter
(Magnet)

B16
2
Gray
B-2
Brake
fluid
level
switch

B17
2
Black
B-3
Vehicle
speed
sensor

B18
3
Dark
gray
B-2Front
oxygen
sensor

4B-2
T5Rear
oxygen
sensor
cord(Other
models)
B19
4B-2
Rear
oxygen
sensor
(California
model)
B20
6Light
gray
B-2El
821
12
Light
gray
B-2
E2Engine
wiring
harness

B22
16
Light
gray
B-2
E3

B26
2
Black
B-3

B27
3B-3
MIB

B28
1
Brown
B-3

B29
2B-2
Rear
washer
motor

B110
~
2
f
Green
B-3
~
Front
washer
motor

`
:
Non-colored

2
.
BULKHEAD
WIRING
HARNESS
AND
GROUND
POINT
(IN
ENGINE
ROOM)

1
2
3
a

E

C

DI

Yi-t
~
GB-4GB-5

(Air
`bag
model
(
Airbag
model
~rrE

1
23
4

21

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

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

1234
12345678910
123456
1314151617181920
789101112
5678
9101112
1
23
1112

B2M0613

10

AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL
[T7L3]
3-2

7
.
Diagnostic
Chart
with
Trouble
Code

t
23
E13

D

OBD0510A
I

B54

6
54
32
1
2
1
09
87

D

-V+

OBD0503A

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

/
,
/
i
~
i
)
Data
link
connector
(for
Subaru
select
monitor

\
.only)

OBD0145AI

1
.
CHECK
HARNESS
CONNECTOR
BETWEEN
TCM

AND
THROTTLE
POSITION
SENSOR
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
TCM
and
throttle
position

sensor
.

3)
Measure
resistance
of
harness
connector
between

TCM
and
throttle
position
sensor
.

Connector
&
terminal
l
Specifiedresistance
:

(B54)
No
.
8
-
(E13)
No
.
2
l1
S2,
or
less

(B56)
No
.
19
-
(E13)
No
.
3
l
1
0,or
less

4)
Measure
resistance
of
harness
connector
between

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

Connector
&
terminal
I
Specifiedresistance
:

(B54)
No
.
8
-
Body
l1
11492,
or
more

(B56)
No
.
19
-
Body
l1
MS2,
or
more

2
.
CHECK
THROTTLE
POSITION
SENSOR
.

Measure
resistance
between
throttle
position
sensor
ter-

minals
.

Terminals
/
Specified
resistance
:

(E13)
No
.
1
-
No
.
2
/
0
.3
-
0
.7
kS2

(Throttle
fully
closed
.)

3
-
6
kS2

(Throttle
fully
open
.)

(E13)
No
.
1
-
No
.
3
/
3
.5
-
6
.5
kS2

3
.
CHECK
INPUT
SIGNAL
FOR
TCM
.

1)
Connect
connectors
to
TCM
and
throttle
position
sen-

sor
.

2)
Turn
ignition
switch
ON
(with
engine
OFF)
.

3)
Measure
signal
voltage
input
emitted
from
throttle
posi-

tion
sensor
with
accelerator
pedal
fully
depressed
.

Connector
&
terminal
l
Specifiedvoltage
:

(B54)
No
.
8
-
No
.
7
/

0
.5
f
0
.2
V
(Throttle
fully
closed
.)

4
.6
f
0
.3
V
(Throttle
fully
open
.)

e
Using
Subaru
select
monitor
:

(1)
Connect
connectors
to
TCM
and
throttle
position

sensor
.

(2)
Turn
ignition
switch
to
OFF
.

(3)
Connect
the
Subaru
select
monitor
to
data
link

connector
.

(4)
Turn
ignition
switch
to
ON
andSubaru
select

monitor
switch
to
ON
.

11

3-2
[r7La]
AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL

7
.
Diagnostic
Chart
with
Trouble
Code

THV
(F09)

4
.6V

83M0383

E13

B3M0238A
I

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

~l
i
a
I
nk
connector
Dat
(for
Subaru
select
monitor
only)

OBD0145A
I

THVCC
(F14)

S
.ZV

OBD0506

(5)
Designate
mode
using
function
key
.

(6)
Read
data
onSubaru
select
monitor
.

Function
mode
:
F09

SPECIFIED
DATA
:

0
.5
f
0
.2
V
(Throttle
fully
closed
.)

4
.6
f
0
.3
V
(Throttle
fully
open
.)

[Must
be
changed
correspondingly
with
accelera-

tor
pedal
operation
(from
"released"
to

"depressed"
position)
.]

4
.
CHECKPOWER
SUPPLY
TO
THROTTLE
POSITION

SENSOR
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
throttle
position
sensor
.

3)
Turn
ignition
switch
to
ON
.

4)
Measure
power
supply
voltage
to
throttle
position
sen-

sor
.

Connector
&
terminal
l
Specified
voltage
:

(E13)
No
.
1
-
Body
l
5
.12
±
0
.1
V

9
Using
Subaru
select
monitor
:

(1)
Turn
ignition
switch
to
OFF
.

(2)
Connect
the
Subaru
select

connector
.

(3)
Turn
ignition
switch
to
ON

monitor
switch
to
ON
.

monitor
to
data
link

and
Subaru
select

(4)
Designate
mode
using
function
key
.

(5)
Read
data
onSubaru
select
monitor
.

Function
mode
:
F14

SPECIFIED
DATA
:

5
.12
f
0
.1
V

12

3-2
[raB11]
AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL

8
.
Diagnostic
Chart
withSelect
Monitor

8
.
Diagnostic
Chart
with
Select
Monitor

B
:
LIST
OF
OUTPUT
MODES

1
.
FUNCTION
MODE

Mode
Contents
Abbr
.
Unit
Contents
of
display
Page

F00
Mode
display
--
AT
or
EGI
mode
(when
monitor
is
connected
.)
-

F01Battery
voltage
VBV
Battery
voltage
applied
to
control
unit
.
-

F02
Vehicle
speed
sensor
1
VSPi
m/h
Vehicle
speed
(miles/h)
sent
from
vehicle
speed
sensor
1
.
-

F03
Vehicle
speed
sensor
1
VSP1
km/h
Vehicle
speed
(km/h)sent
from
vehicle
speed
sensor
1
.
-

F04
Vehicle
speed
sensor
2
VSP2
m/h
Vehicle
speed
(miles/h)
sentfrom
vehicle
speed
sensor
2
.
-

F05
Vehicle
speed
sensor
2
VSP2
km/h
Vehicle
speed
(km/h)
sent
from
vehicle
speed
sensor
2
.
-

F06
Engine
speed
EREV
rpm
Engine
speed
sent
from
ECM
.
-

F07
ATF
temperature
sensor
ATFT
°F
ATF
temperature
(°F)
sent
from
ATF
temperature
sensor
.
-

F08
ATF
temperature
sensor
ATFT
°C
ATF
temperature
(°C)
sent
from
ATF
temperature
sensor
.
-

F09
Throttleposition
sensor
THV
V
Voltage
sent
from
throttle
position
sensor
.
15

F10
Gear
position
GEAR
-
Transmissiongear
position
-

F11Line
pressure
duty
PLDTY
%
Duty
ratio
flowing
through
duty
solenoid
A
.
16

F12
Lock-up
duty
LUDTY
%
Duty
ratio
flowing
through
duty
solenoid
B
.
17

F13
AWD
duty
4WDTY
%
Duty
ratio
flowing
through
duty
solenoid
C
.
18

F14
Throttle
position
sensor
power
supply
THVCC
VPower
supply
voltage
to
throttle
position
sensor
19

F15
Mass
air
flowsignal
l
AFM
V
Output
voltage
from
air
flow
sensor
19

14

AUTOMATIC
TRANSMISSION
AND
DIFFERENTIAL
[T810]
3-2
8
.
Diagnostic
Chart
with
Select
Monitor

THV
(F09)

4
.6V

B3M0383

Probable
cause
(if
outside"specifieddata")

1
1
.
Throttleposition
sensor

I:
MODE
F09

-
THROTTLE
POSITION
SENSOR
(THV)
-

CONDITION
:

"
Ignition
switch
ON
(with
engine
OFF)

"
Measure
voltage
while
operating
throttle
valve
from
a

fully
closed
position
to
a
fully
open
position
.

SPECIFIED
DATA
;

"
Fully
closed
position
:
0
.5±0
.2
V
"
Fully
open
position
:
4
.6±0
.3
V

"
From
fully
closed
to
fully
open
position
:

Voltage
mustsmoothlydecrease
.

"
Open
harness
:
5
.0±0
.3
V
"
Shorted
harness
:
0
.00
V

Check
performance
characteristics
ofthrottle
position
sensor
.
<
Ref
.
to
3-2
[T7L0]
.*2
>

OK

I
Check
TCM
and
replace
if
necessary
.

15