Page 29 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 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 LEGACY 1996 Service Repair Manual 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](/manual-img/17/57433/w960_57433-28.png)
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
Page 30 of 2890
![SUBARU LEGACY 1996 Service Repair Manual
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
E SUBARU LEGACY 1996 Service Repair Manual
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
E](/manual-img/17/57433/w960_57433-29.png)
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
Page 31 of 2890
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
Page 32 of 2890
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T3csi
2-7
3
.
Diagnosis
System
D
I
AG
.
I
(FB3
)
NO
TROUBLE
82M0636
D
I
AG
.
I
(FB3
)
NO
TROUBLE
B2M0636
1
QA_F
(FB3
)
P0100
4
.
5
SV
2
B2M0638
QA_F
(
FB3
)
PO100
4
.5
5V
EGR
(
FB3
)
P0403
Low
82M0649
3)
Ensure
freeze
frame
data(s)
is
(are)
shown
.
(1)
When
no
trouble
is
detected,
or
after
memory
is
cleared
.
(2)
When
a
trouble
occurs
butthe
corresponding
item
is
not
displayed
.
(3)
When
only
one
trouble
corresponding
to
the
dis-
played
item
has
occurred
.
T
Abbreviation
~2
Diagnostic
trouble
code
of
trouble
occurred
(4)
When
multiple
troubles
corresponding
to
the
dis-
played
item
are
detected
.
NOTE
:
Freeze
frame
data
is
shown
on
display
for
2
seconds
at
a
time
.
17
Page 34 of 2890
![SUBARU LEGACY 1996 Service Repair Manual
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
Eng SUBARU LEGACY 1996 Service Repair Manual
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
Eng](/manual-img/17/57433/w960_57433-33.png)
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
Page 35 of 2890
2-7
[T3C7]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
82M0476
7
.
FUNCTION
MODE
:
F00
-
ROM
ID
NUMBER
(YEAR)
-
CONDITION
:
Ignition
switch
"ON"
SPECIFIED
DATA
:
Presentation
display
Probable
cause
(Item
outside"specifieddata")
1
.
Error
1
2
.
Error2
vB
(F01)
12
.4
V
B2M0270
Probable
cause
(Item
outside
"specified
data")
1
.
Battery
1
2
.
Charging
system
1
3
.
Power
supply
line
Check
for
loose
or
disconnected
connector,
and
discontinued
circuit,
etc
.
Check
for
poor
contact
of
cartridge,
or
different
type
cartridge
.
8
.
FUNCTION
MODE
:
F01
-
BATTERY
VOLTAGE
(VB)
-
CONDITION
:
(1)
Ignition
switch
"ON"
(2)
Idling
after
warm-up
SPECIFIED
DATA
:
(1)
111
V
(2)
13
f
1
V
Check
battery
voltage
and
electrolyte's
specific
gravity
.
"
Check
regulating
voltage
.
(On
no-load)
Check
alternator
.
o
Check
main
relay
.
<
Ref
.
to
[T9C0]
.*4>
*
Check
harness
connector
of
ECM
power
supply
line
.
.
to
[T9C0]
.*4>
20
Page 36 of 2890
[T3C13]
2-7
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
VSP
(F02)
24km/
h
15MPH
B2M0754
EREV
(F03
)
1500
rpm
B2M0478
TW
(F04)
800C
176
°
F
B2M0479
ADVS
(F05
)
15
deg
B2M0480
QA
(
F06
)
1
.
67g
l
s
2
.
02V
82M0481
9
.
FUNCTION
MODE
:
F02
-
VEHICLE
SPEED
SIGNAL
(VSP)
-
9
Vehicle
speed
is
indicated
in
kilometerper
hour
(km/h)
and
mile
per
hour
(MPH)
at
the
same
time
.
10
.
FUNCTION
MODE
:
F03
-
ENGINE
SPEED
SIGNAL
(EREV)
-
11
.
FUNCTION
MODE
:
F04
-
ENGINE
COOLANT
TEMPERATURE
SIGNAL
(TW)
-
~
Engine
coolant
temperature
is
indicated
in
"°C"
and
"°F"
at
the
same
time
.
12
.
FUNCTION
MODE
:
F05
-
IGNITION
SIGNAL
(ADVS)
-
NOTE
:
The
ignition
timing
value
displayed
in
mode
F05
is
a
value
computed
by
ECM
and
will
not
alwayscorrespond
with
the
value
measured
with
a
timing
light
.
13
.
FUNCTION
MODE
:
F06
-
MASS
AIR
FLOW
SIGNAL
(QA)
-
Mass
air
flow
and
voltage
input
from
mass
air
flow
sensorare
shown
on
display
at
the
same
time
.
21
Page 37 of 2890
2-7
[T3C14]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
THV
(F07
)
0%
0
.
21V
82M0482
TIM
(
F08
)
2
.
82
mS
B2M0483
ISC
(F09)
35.7
B2M0484
LOAD
(F10)
10
.0
B2M0485
02
(1`11)
0
.
60
V
B2M0486
14
.
FUNCTION
MODE
:
F07
-
THROTTLE
POSITION
SIGNAL
(THV)
-
*
Throttleposition
is
indicated
in
percentage
(%)and
voltage
(V)
at
the
same
time
.
NOTE
:
Be
sure
that
the
displayed
value
changes
smoothly
when
changing
throttle
valve
from
fully
closed
to
fully
opened
.
15
.
FUNCTION
MODE
:
F08
-
INJECTOR
PULSE
WIDTH
(TIM)
-
16
.
FUNCTION
MODE
:
F09
-
IDLE
AIR
CONTROL
SIGNAL
(ISC)
-
17
.
FUNCTION
MODE
:
F10
-
LOADDATA
(LOAD)
-
18
.
FUNCTION
MODE
:
F11
-
FRONT
OXYGEN
SENSOR
OUTPUT
SIGNAL
(02)
-
22