Page 33 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 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
vo SUBARU LEGACY 1996 Service Repair Manual 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
vo](/manual-img/17/57433/w960_57433-32.png)
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
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
Page 38 of 2890
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T3C23]
2-7
3
.
Diagnosis
System
02max
-
min
(
F
12
)
0
.
80V
0
.
10v
BMW
R02
(F13)
0
.
60
V
B2M0488
R02max
-
min
(F14)
0
.
80V
0
.
10V
82M0489
ALPHA
(F17)
0
.8
B2M0490
KNOCK
(F19)
3
.
0deg
82M0491
19
.
FUNCTION
MODE
:
F12
-
FRONT
OXYGENSENSOR
MAXIMUM
AND
MINIMUM
OUTPUT
SIGNAL
(F02MAX
-
MIN)
-
Front
oxygen
sensor
maximum
andminimum
output
signals
are
indicated
at
the
same
time
.
20
.
FUNCTION
MODE
:
F13
-
REAR
OXYGENSENSOR
OUTPUT
SIGNAL
(R02)
-
21
.
FUNCTION
MODE
:
F14
-
REAR
OXYGEN
SENSOR
MAXIMUM
AND
MINIMUM
OUTPUT
SIGNAL
(R02MAX
-
MIN)
-
oRear
oxygen
sensor
maximum
and
minimum
output
sig-
nals
are
indicated
at
the
same
time
.
22
.
FUNCTION
MODE
:
F17
-
SHORTTERM
FUEL
TRIM
[A/F
CORRECTION
COEFFICIENT]
(ALPHA)
-
23
.
FUNCTION
MODE
:
F19
-
KNOCK
SENSOR
SIGNAL
[IGNITION
TIMING
CORRECTION
COEFFICIENT]
(KNOCK)
-
23
Page 39 of 2890
2-7
[T3C24]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
BARO
.P
(F20)
1
0
OkPa752mmHg
82M0755
MAN
I
.
P
(F21)
2
9kPa218mmHg
82M0756
PHOS
(
F29
)
0
.78
B2M0494
KBLRC
(F30)
5
.5
B2M0495
KO
(F31
)
B2M0496
24
.
FUNCTION
MODE
:
F20
-
ATMOSPHERICABSOLUTE
PRESSURE
SIGNAL
(BARD
.
P)
-
*
Atmospheric
absolutepressure
is
indicated
in
"kPa"
and
"mmHg"
at
the
same
time
.
25
.
FUNCTION
MODE
:
F21
-
INTAKE
MANIFOLD
ABSOLUTE
PRESSURE
SIGNAL
(MANI
.
P)
-
e
Intake
manifoldabsolutepressure
is
indicated
in
"kPa"
and
"mmHg"
at
the
same
time
.
26
.
FUNCTION
MODE
:
F29
-
A/F
CORRECTION
COEFFICIENT
[SHORT
TERM
TRIM]
BY
REAR
OXYGENSENSOR
(PHOS)
-
27
.
FUNCTION
MODE
:
F30
-
LONGTERM
FUELTRIM
[A/F
LEARNING
CORRECTION
COEFFICIENT]
(KBLRC)
-
28
.
FUNCTION
MODE
:
F31
-
LONGTERM
FUEL
TRIM
WHOLE
[A/F
LEARNING
CONTROL
COEFFICIENT]
(KO)
-
24
Page 40 of 2890
ON-BOARS
DIAGNOSTICS
II
SYSTEM
[T3C33]
2-7
3
.
Diagnosis
System
F02H
I
1
.
00
A
B2M0497
R02H
(
F33
)
1
.
00
A
B2M0498
MF1
(F36
)
B2M0499
MF2
(
F37
)
0
B2M0500
MF3
(F38)
0
82M0501
29
.
FUNCTION
MODE
:
F32
-
FRONT
OXYGEN
SENSOR
HEATER
CURRENT
(F02H)
-
30
.
FUNCTION
MODE
:
F33
-
REAR
OXYGENSENSOR
HEATER
CURRENT
(R02H)
-
31
.
FUNCTION
MODE
:
F36
-
MAXIMUM
VALUE
OF
CYLINDER
#1
MISFIRE
RATE
DURING
100
ROTATIONS
(MF1)
-
32
.
FUNCTION
MODE
:
F37
-
MAXIMUM
VALUE
OF
CYLINDER
##2
MISFIRE
RATE
DURING
100
ROTATIONS
(MF2)
-
33
.
FUNCTION
MODE
:
F38
-
MAXIMUM
VALUE
OF
CYLINDER
#3
MISFIRE
RATE
DURING
100
ROTATIONS
(MF3)
-
25