engine SUBARU LEGACY 1996 Service Repair Manual

1-1
[s2o2]
SPECIFICATIONS

2
.
Station
Wagon

2
.
Station
Wagon

2
.
ENGINE

Engine
type
Horizontally
opposed,
liquid
cooled,
4-cylinder,
4-stroke
gasoline
engine
Valve
arrangement
Overhead
camshaft
type

Bore
x
Stroke
mm
(in)
96
.9
x75
.0(3
.815
x2
.953)

Displacement
cm3
(cu
in)
2,212
(135
.0)

Compression
ratio
9
.7

Firing
order
1-3-2-4

Idle
speed
at
Park/Neutral
position
rpm700

Maximum
output
kW
(HP)/rpm
101
(135)/5,400

Maximum
torque
N
.m
(kg-m,
ft-Ib)/rpm
190
(19
.4,140)/4,400

3
.
ELECTRICAL

Ignition
timing
atidling
speed
BTDC/rpm
20°/700
Spark
plug
Type
and
manufacturer
CHAMPION
:
RC10YC4
(Standard)
NGK
:
BKR6E-11
NIPPONDENSO
:
K20PR-U11

Generator
12V
-
85A

Battery
Reserve
capacity
min100

Cold
cranking
amperes
amp
.I
490

1-3
[0301]
GENERAL
INFORMATION

3
.
Vehicle
Identification
Numbers
(V
.I
.N)

3
.
Vehicle
Identification
Numbers
(V
.I
.N)

1
.
APPLICABLE
V
.I
.N
.
IN
THIS
MANUAL

Station
2200
cc
AWD
~
4AT
T
4
TS
3
1
B
I
KT
I
9
I
5X
I
T
I
8
I
T
2
00
1
and
after
Wagon
engine
POST

2
.
THE
MEANINGOF
V
.I
.N
.

Marker
identifier

l

Stop-
mark

4
S
3

Sequential
number
302001
and
after
:
Station
Wagon

Plant
of
manufacture
and
transmission
type

Plant
of
manufacture
Transmissiontype
SIA

POST
8
(Full-time
AWD
4AT)

Model
year
T
1996

Check
digit

Weight
class
and
restraint
type
Passenger
car
5
:
Withoutpassive
restraint,
with
Dual
SRS
airbag

Model
9
:
POST

Engine
type
4
:
2
.2
liter
engine

Body
type
K
:
Station
Wagon

Line
B
:
SUBARU
B
line

Plant
of
manufacture

Plant
of
manufacture
Type
of
vehicle

SIA

I
4S3
~
Passenger
car
I

Vehicle
attributes
Check
digit
Vehicle
identification

BK
495
X
T
83
0200
1
[

TT
I
T
T
ITT
Z
Stop
mark

2

2-7
[T1A2]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

1
.
General

1
.
General

A
:
ENGINE

2
.
SCHEMATIC

B2M0828A

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[Tiq2]
2-

1
.
General

1~
Engine
control
module
(ECM)
~
Radiator
fan

~2
Ignition
coil~s
Radiator
fan
relay

~3
Ignitqr
~s
Pressure
sources
switching
solenoid
valve

~4
Crankshaft
position
sensor
~
Knock
sensor

~5
Camshaft
position
sensor
~
Back-pressure
transducer

Throttle
position
sensor
~s
Front
oxygen
sensor

~7
duel
injectors
~o
Rear
oxygen
sensor
(Except
California
model)

~8
Pressure
regulator
~
Pressure
sensor

Engine
coolant
temperature
sensor
~z
A/C
compressor

~o
Mass
air
flow
sensor
~
Inhibitor
switch

Idle
air
control
solenoid
valve
~
CHECK
ENGINE
malfunction
indicator
lamp
(MIL)

~z
Purge
control
solenoid
valve
~
Tachometer

0
Fuel
pump
~s
A/C
relay

0
PCV
valve
~
A/C
control
module

~s
Air
cleaner
~eIgnition
switch

Canister
~
Transmission
control
module
(TCM)

~
Main
relay
~o
Vehicle
speed
sensor
2

~a
Fuel
pump
relay
~
Data
link
connector
(For
Subaru
select
monitor)

~s
Fuel
filter
@
Data
link
connector
(For
Subaru
select
monitor
and

~o
Front
catalytic
converter
OBD-II
general
scan
tool)

Rear
catalytic
converter
@
Two
way
valve

~2
MGR
valve
~a
Rear
oxygen
sensor
(California
model
only)

EGR
control
solenoid
valve
~
Filter

3

2-7
[T2A2]
ON-BOARD
DIAGNOSTICS
11
SYSTEM

2
.
Electrical
Components
Location

2
.
Electrical
Components
Location

A
:
ENGINE

2
.
SENSOR

OBD0009A

1~
Pressure
sensor
~5
Knock
sensor

~2
Mass
air
flow
sensor
~s
Camshaft
position
sensor
~3
Engine
coolant
temperature
sensor
07
Crankshaft
position
sensor
~4
Throttleposition
sensor

4

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
<QA>

Diagnostic
trouble
code
Abbreviation

osooos2

OBD
(FB
1)

PO
115
<TW>

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

2-7
[T3C5]
ON-BOARD
DIAGNOSTICS
11
SYSTEM

3
.
Diagnosis
System

1

LOAD_F
(
FB2
)

PO100
10
.0%

2
B2M0634
LOAD_F
(FB2
)

PO100
10
.0%

1o1

TW_F
(FB2
)

P0100
80-C

[1l

5

VSP_F
(FB2
)

PO
100
40km/h

B2M0671

SELECT
SYSTEM

EGi
Y
:O,N
:/

1
[01

H2M1149I

00=E,o

C
D
EFT

0
1E_
1
aao
1

11-:11F131
00
a
456
7/

a
FE-11
0
0a

aoaao

SuBARU
G3M0152I

(2)
When
some
trouble
is
detected
.

Abbreviation

~2
Diagnostic
trouble
code
of
trouble
occurred

NOTE
:

Other
freeze
frame
data
is
shown
on
display
by
pushing

thefunction
key
[J,]
.

5
.
READ
FREEZE
FRAME
DATA
SHOWN
ON
DISPLAY
.

(MODE
FB3)

NOTE
:

e
For
items
and
contents
shown
on
display,
referto
"6
.

READDATA
FUNCTION
KEY
LIST
FOR
ENGINE"
2-7

[T3C6]*4
.

9
Freeze
frame
data
will
not
erasewithout
clearing
mem-

o
ry
.

1)
Select
engine
mode
using
function
key
.

Press
thefunction
key
[0]
.

2)
Designate
mode
using
function
key
.

Press
[F][B]
[3]
[ENT]
in
that
order
.

16

2-7
[T3C6]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

3
.
Diagnosis
System

6
.
READDATA
FUNCTION
KEY
LIST
FOR
ENGINE

Function
mode
Contents
Abbreviation
Unit
of
measure

F00
ROM
ID
number
YEAR
-

F01Battery
voltage
VB
V

F02
Vehicle
speed
signal
VSP
km/h,
MPH

F03Engine
speed
signal
EREV
rpm

F04Engine
coolant
temperature
signal
TW
°C,
°F

F05
Ignition
signal
ADVS
deg

F06
Mass
air
flow
signal
QA
g/s,
V

F07
Throttle
position
signal
THV
%,
V

FOS
Injector
pulse
width
TIM
ms

F09
Idle
air
control
signal
ISC
°/m

F10
Load
data
LOAD

F11
Front
oxygen
sensor
outputsignal
02
V

F12
Front
oxygen
sensor
maximum
and
minimum
output

signal
02max
-
min
V,
V

F13
Rear
oxygen
sensor
output
signal
R02
V

F14
Rear
oxygen
sensor
maximum
and
minimum
output

signal
R02max
-
min
V,
V

F17
Short
term
fuel
trim
ALPHA

F19
Knock
sensor
signal
KNOCK
deg

F20
Atmospheric
absolute
pressure
signal
BARD
.
P
kPa,
mmHg

F21
Intake
manifold
absolute
pressure
signal
MANi
.
P
kPa,
mmHg

F29
A/F
correction
(short
term
trim)
by
rear
oxygen
sensor
PHOS

F30
Longterm
fuel
trim
KBLRC

F31
Longterm
whole
fuel
trim
KO

F32
Front
oxygen
sensor
heater
current
F02H
A

F33
Rear
oxygen
sensor
heater
current
R02H
A

F36
Maximum
value
of
cylinder#1
misfire
times
during
100

rotations
MFi

F37
Maximum
value
of
cylinder
#2
misfire
times
during
100

rotations
MF2

F38
Maximum
value
of
cylinder
#3
misfire
times
during
100

rotations
MF3

F39
Maximum
value
of
cylinder
#4
misfire
times
during
100

rotations
MF4

F42
Maximum
and
minimum
EGR
system
pressure
value
EGRmax
-
minkPa

FAO
ON
H
OFF
signal
-
-

FA1
ON
~-->
OFF
signal
-
-

FA2
ON
H
OFF
signal
-
-

FA3
ON
H
OFF
signal
-
-

FA4
ON
H
OFF
signal
-
-

FA5
ON
H
OFF
signal
-
-

FBO
Diagnostic
trouble
code
(DTC)
INSPECT
-

18

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T3C6]
2-7
3
.
Diagnosis
System

Function
mode
Contents
Abbreviation
Unit
of
measure

FB1
Diagnostic
trouble
code
(DTC)
OBD
-

Load
data
(Freeze
frame
data)
LOAD-F

Engine
coolant
temperature
signal
(Freeze
frame
data)
TW-F
°C

Throttleposition
signal
(Freeze
frame
data)
ALPH-F

FB2
Long
term
fuel
trim
(Freeze
frame
data)
KBLR-F

Intake
manifoldabsolute
pressure
signal
(Freeze
frame

data)
MANI-F
kPa

Engine
speed
signal
(Freeze
frame
data)
EREV-F
rpm

Vehicle
speed
signal
(Freeze
frame
data)
VSP-F
km/h

Mass
air
flow
signal
(Freeze
frame
data)
QA-F
(P0100)
V

Pressure
signal
(Freeze
frame
data)
PS-F
(P0105)
V

Pressure
signal
(Freeze
frame
data)
PR-F
(P0106)
V

Engine
coolant
temperature
signal
(Freeze
frame
data)
TW-F
(P0115)
V

Throttleposition
signal
(Freeze
frame
data)
THV-F
(P0120)
V

17133
EGR
control
solenoid
valve
signal
(Freeze
frame
data)
EGR
(P0403)
-*1

Purge
control
solenoid
valve
signal
(Freeze
frame
data)
CPC
(P0443)
_*1

Start
switch
signal
(Freeze
frame
data)
STSW
(P1100)
_*1

Pressure
sources
switching
solenoid
valve
signal

(Freeze
frame
data)
gR1
(P1102)
_*1

Radiator
fanrelay
1
signal
(Freeze
frame
data)
FAN1
(P1500)
_*1

FCO
Clear
memory
-
-

FD01
Compulsory
fuel
pump
relay
operation
check
FUEL
PUMP
-

FD02
Compulsory
purge
control
solenoid
valveoperation

check
CPCSOL
-

FD03
Compulsory
radiator
fan
relay
operation
check
RAD
FAN
-

FD04
Compulsory
A/C
relay
operation
check
A/C
RELAY
-

FD05
Compulsory
EGR
control
solenoid
valve
operation

check
EGR
SOL
-

FD10
Compulsory
pressure
sources
switching
solenoid
valve

operation
check
BR
SOS
-

NOTE
:

1)
Subaru
select
monitor
is
also
available
for
monitoring

information
other
than
that
used
for
check
and
repair
of

the
vehicle
.

2)
F42
(Maximumandminimum
EGR
system
pressure

value)
will
not
read
accurately
until
the
EGR
flow
diagno-

sis
terminates
.

EGR
flow
diagnosis
terminates
when
LED
No
.
2
illuminates

at
function
mode
FA4
.

3)*1
:
"Hi"or
"Low"
is
shown
instead
of
measured
value
.

4)
Because
valve
is
not
installed,
FD06,
FD07,FD08,
FD09

and
FD11
will
be
displayed
but
non-functional
.

19