SUBARU LEGACY 1996 Service Owner's Manual

2-7
[72A2]
ON-BOARD
DIAGNOSTICS
Ii
SYSTEM

2
.
Electrical
Components
Location

6

%
Front
oxygen
sensor
~
Front
catalytic
converter

~9
Rear
oxygen
sensor
(Except
California
model)
~2
Rear
catalytic
converter

Rear
oxygen
sensor
(California
model)

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[rzA21
2-7
2
.
Electrical
Components
Location

MUM

OBD0525C
OBD0524C

7

2-7
[T2A3]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

2
.
Electrical
Components
Location

3
.
SOLENOID
VALVE,
EMISSION
CONTROL
SYSTEM

PARTS
AND
IGNITION
SYSTEM
PARTS

osoooose

Pressure
sources
switching
solenoid
valve
OS
Purge
control
solenoid
valve

(k
Idle
air
control
solenoid
valve
06
Ignitor
~3
EGR
valve
(~7
Ignition
coil
4
EGR
control
solenoid
valve

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T2A3]
2-7
2
.
Electrical
Components
Location

OBD0024A
OBD0025A

88M0160A

2-7[T2A3]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

2
.
Electrical
Components
Location

1
604
o

--
~
I
I

~s3Q=
J
f
~~
-~
1

2

I
1~
~~~,

n

~
r/
"
~
~L,
~
ma
r

OBD0047AB2M0216A

Q\
~I
5
86
L
._

c1
0
C0L

CO
HUG
0
cla

on
r(ol
Uj
P

~

0

1
3

B2M0434A
OBD0034A

10

Inhibitor
switch
~6
Radiator
main
fan
relay
2

~2
Fuel
pump
~7
Radiator
sub
fan
relay
1

(IMain
relay
~8
Radiator
sub
fanrelay2
%
Fuel
pump
relay
~9
Starter
%
Radiator
main
fan
relay
1

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T2A3]
2-7
2
.
Electrical
Components
Location

11

2-7
(T2A5]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

2
.
Electrical
Components
Location

5
.
EMISSION-RELATED
POWERTRAIN
DIAGNOSTIC

TROUBLE
CODE
(MODE
$03)

Refers
to
datadenoting
emission-related
powertrain
diag-

nostic
trouble
codes
.

For
details
concerning
diagnostic
trouble
codes,
referto

the
DIAGNOSTIC
TROUBLE
CODE
(DTC)
LIST,
2-7

[T
11
AO]
*4
.

NOTE
:

Refer
to
OBD-II
general
scan
tool
manufacturer's
instruc-

tion
manual
to
access
emission-related
powertrain
diag-

nostic
trouble
codes
(MODE
$03)
.

12

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T3C1J
2-7
3
.
Diagnosis
System

0
-
ST2

0000000000
0000000000

STi

OBD0057A

4111
o000
0000
oaoo
F[

EJ0000
0000

G3M0150I

Subaru
select
monitor

:::
o
00000
aoaoonoaoooGoou

7

B2M0829A

3
.
Diagnosis
System

C
:
SUBARU
SELECT
MONITOR

1
.
HOW
TO
USE
SUBARU
SELECT
MONITOR

1)
Prepare
Subaru
select
monitor
and
cartridge
.

ST1
498307500
SELECT
MONITOR
KIT

ST2
498345700
CARTRIDGE

2)
Turn
ignition
switch
and
Subaru
select
monitor
switch

to
OFF
.

3)
Insert
cartridge
into
Subaru
select
monitor
.

4)
Connect
Subaru
select
monitor
to
data
link
connector
.

*
Using
data
link
connector
for
Subaru
select
moni-

tor
only,
connect
Subaru
select
monitor
to
its
data
link

connector
located
in
the
lower
portion
of
the
instru-

ment
panel(on
the
driver's
side),
to
the
sideof
the

center
console
box
.

9
Using
data
link
connector
for
Subaru
select
moni-

tor
and
OBD-II
general
scan
tool
;

(1)
Connect
ST
to
Subaru
select
monitor
cable
.

ST
498357200
ADAPTER
CABLE

(2)
Open
the
cover
and
connect
Subaru
select
moni-

tor
to
data
link
connector
located
in
the
lower
portion

of
the
instrument
panel
(onthe
driver's
side),
to
the

lowercover
.

CAUTION
:

Do
not
connect
scan
tools
except
for
Subaru
select
mon-

itor
and
OBD-II
general
scan
tool
.

13

2-7
[T3C2]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

3
.
Diagnosis
System

SELECT
SYSTEM

EGi
Y
:O,N
:/

1
101

H2M1149
I

=0=1
1H]

D
E
F
T

aor0l
oo
L

oo0
RD
FE-11
456
7

F111
0
0
F1_31
a

F03
0
FL-11
ED101

SUBARU
03M0152
I

OBD
(FB
1)

PO100


Diagnostic
trouble
code
Abbreviation

osooos2

OBD
(FB
1)

PO
115


OBD
(FBI)

P0120
<
THV
>

OBD0063

5)
Turn
ignition
switch
to
ON
(engine
OFF)
and
Subaru

select
monitor
switch
to
ON
.

6)
Using
Subaru
select
monitor,
call
up
diagnostic
trouble

code(s)
and
various
data,
then
record
them
.

2
.
READ
DIAGNOSTIC
TROUBLE
CODE
(DTC)
SHOWN

ON
DISPLAY
.
(MODE
FB1)

1)
Select
engine
mode
using
function
key
.

Press
thefunction
key
[0]
.

2)
Designate
mode
using
function
key
.

Press
[F]
[B]
[1]
[ENT]
in
that
order
.

3)
Ensure
diagnostic
trouble
code(s)
is
shown
.

(1)
When
there
is
only
one
diagnostic
trouble
code
.

(2)
When
there
are
multiple
diagnostic
trouble
codes
.

NOTE
:

For
details
concerning
diagnostic
trouble
codes,
referto

the
DIAGNOSTIC
TROUBLE
CODE
(DTC)
LIST,
2-7

[T11A0]*4
.

14

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T3C4]
2-7

3
.
Diagnosis
System

SELECT
SYSTEM

EGi
Y
:O,N
:/

~
101

H2M1149
I

OO~O
~o

C0
EFT

01ED
ED
[1-:11
Q
a
sAe
1

FE1
oooa
4
567/

0
FolF01
F01
F-01
0
F
23
ENT

F

E

0_1

j

F01FUTF01

SUBARU
G3M0152
I

SELECT
SYSTEM

EGi
Y
:O,N
:/

1
101

H2M11491

oaoo
Eo

co
eF?

F01
F-01
[E-11
F01
[1-
:11
as
n
s1

ooFol
Fol
a
4
5
6
7

00
FLJJ
DFEJ
00

aa~ar

SUBARU
G3M0152I

FFCODE
(
FB2
)

NO
TROUBLE

B2M0474

3
.
READ
CURRENT
DATA
SHOWN
ON
DISPLAY
FOR

ENGINE
.
(FUNCTION
MODE)

1)
Select
engine
mode
using
function
key
.

Press
thefunction
key
[0]
.

2)
Designate
mode
using
function
key
.

Refer
to
"6
.
READ
DATAFUNCTION
KEY
LIST
FOR

ENGINE"
2-7
[T3C6]*4
.

(Example
:
Press
[F]
[0]
[1]
[ENT]
in
that
order
.)

3)
Ensure
data
of
input
or
output
signal
is
shown
.

4
.
READ
FREEZE
FRAME
DATA
SHOWN
ON
DISPLAY
.

(MODE
FB2)

1)
Select
engine
mode
using
function
key
.

Press
thefunction
key
[0]
.

2)
Designate
mode
using
function
key
.

Press
[F]
[B]
[2]
[ENT]
in
that
order
.

3)
Ensure
freeze
frame
data(s)
is
(are)
shown
.

(1)
When
no
trouble
is
detected,
or
after
memory
is

cleared
.

15