Page 41 of 2890
2-7
[T3C34]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
MF4
(F39
)
B2M0502
EGRmax-min
(F4
2
)
100kPa
4kPa
82M0759
34
.
FUNCTION
MODE
:
F39
-
MAXIMUM
VALUE
OF
CYLINDER
#4
MISFIRE
RATE
DURING
100
ROTATIONS
(MF4)
-
35
.
FUNCTION
MODE
:
F42
-
MAXIMUM
AND
MINIMUM
EGR
SYSTEM
PRESSURE
VALUE
[AT
VEHICLES]
(EGRMAX-MIN)
-
e
Maximum
andminimum
EGR
system
pressure
value
are
indicated
at
the
same
time
.
26
Page 42 of 2890

ON-BOARD
DIAGNOSTICS
II
SYSTEM
ITscas1
2-7
3
.
Diagnosis
System
36
.
FA
MODE
FOR
ENGINE
Function
mode
LED
No
.
Contents
Display
LED
"ON"
requirements
3Neutral
switch
NT
When
neutralposition
signal
is
entered
.
7Test
mode
connector
UD
When
test
mode
connector
is
connected
.
FAO
8
AT/MT
identification
signal
AT
When
AT
identification
signal
is
entered
.
9
Ignition
switchIG
When
ignition
switch
is
turned
ON
.
1
Radiator
fan
relay
2
R2
When
radiator
fanrelay2
isin
function
.
2
Knock
signal
KS
When
knock
signal
is
entered
.
3
Purge
control
solenoid
valve
CNWhen
purge
control
solenoid
valve
is
in
func-
tion
.
FA1
4Fuel
pump
relay
FP
When
fuel
pump
relay
isin
function
.
6
Radiator
fanrelay
1
R1
When
radiator
fanrelay
1
isin
function
.
7
Air
conditioner
relay
ARWhen
air
conditioner
relay
isin
function
.
8
Air
conditioner
switch
ACWhen
air
conditioner
switch
is
turned
ON
.
2
AEC
signal
ECWhen
AEC
signal
is
entered
.
3
EAM
signal
AM
When
EAM
signal
is
gone
out
.
FA2
4
AEB
signal
EB
When
AEB
signal
is
entered
.
6
AET
signal
ET
When
AET
signal
is
entered
.
7
Engine
torque
control
signal
TR
When
engine
torque
control
signal
is
entered
.
FA3
7
Pressure
sources
switching
solenoid
valve
BR
When
pressure
sources
switching
solenoid
valve
is
in
function
.
1
Catalyst
CA
When
diagnosis
of
catalyzer
is
finished
.
2
EGR
system
E1
When
diagnosis
of
EGR
system
is
finished
.
FA4
3
California
model
identification
signal
FC
When
California
model
identification
signal
is
entered
.
8
Rear
oxygen
sensor
signal
OR
When
rear
oxygen
sensor
mixture
ratio
is
rich
.
9Front
oxygen
sensor
signal
02
When
front
oxygen
sensor
mixture
ratio
is
rich
.
FA5
7
EGR
solenoid
valve
ER
When
EGR
solenoid
valve
is
in
function
.
27
Page 43 of 2890
![SUBARU LEGACY 1996 Service Repair Manual
Z-T
[T3C37]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
LED
No
.
Signal
name
Display
1
-
-
2
-
-
3Neutralswitch
NT
4
--
5
--
s
--
7
Test
mode
connector
LID
8
Identification
of
AT
mo SUBARU LEGACY 1996 Service Repair Manual
Z-T
[T3C37]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
LED
No
.
Signal
name
Display
1
-
-
2
-
-
3Neutralswitch
NT
4
--
5
--
s
--
7
Test
mode
connector
LID
8
Identification
of
AT
mo](/manual-img/17/57433/w960_57433-42.png)
Z-T
[T3C37]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
LED
No
.
Signal
name
Display
1
-
-
2
-
-
3Neutralswitch
NT
4
--
5
--
s
--
7
Test
mode
connector
LID
8
Identification
of
AT
model
AT
9
Ignition
switchIG
r
0
-
-
NT
--
-
LID
AT
IG
-
ooooa
LEDNo
.
Signal
name
Display
1
Radiator
fan
relay
2
R2
2
Knock
signal
KS
Purge
control
solenoid
valve
CN
4
Fuel
pump
relay
FP
5
-
-
6
Radiator
fan
relay
1
R1
7
A/C
relay
AR
8
A/C
switch
AC
9
--
o
--
R2
KSCN
FP
-
R1
ARAC
--
37
.
FUNCTION
MODE
:
FAO
-
ON
H
OFF
SIGNAL
-
Requirement
for
LED
"ON"
.
LED
No
.
3
Shift
position
is
in
"P"or
"N"
.
LED
No
.
7
Test
mode
connector
is
connected
.
LED
No
.
8
Vehicle
is
AT
model
.
LED
No
.
9
Ignition
switch
is
turned
ON
.
38
.
FUNCTION
MODE
:
FA1
-
ON
H
OFF
SIGNAL
-
Requirement
for
LED
"ON"
.
LEDNo
.
1
Radiator
fan
relay
2
is
turned
ON
.
LEDNo
.
2
Engine
is
knocking
.
LED
No
.
3
Purge
control
solenoid
valve
is
in
function
.
LED
No
.
4
Fuel
pump
relay
is
turned
ON
.
LED
No
.
6
Radiator
fan
relay
1
is
turned
ON
.
LED
No
.
7
A/C
relay
is
turned
ON
.
LED
No
.
8
A/C
switch
is
turned
ON
.
NOTE
:
9
When
LED
No
.
1,3,
4,
6
and
7
blinks
with
the
test
mode
connector
connected
and
the
ignition
switch
turned
to
ON,
the
corresponding
part
is
functioning
properly
.
e
When
LED
No
.
4
illuminates
for
only
2
seconds
after
the
ignition
switch
is
turned
to
ON,
(and
then
goes
out),
the
corresponding
part
is
functioningproperly
.
28
Page 44 of 2890

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[rscaoi
2-7
3
.
Diagnosis
System
LEDNo
.
Signal
name
Display
--
2
AEC
signal
EC
3
EAM
signal
AM
4
AEB
signal
EB
5
-
-
6
AET
signal
ET
Engine
torque
control
signal
TR
a
-
-
9
--
0~
--
-
EC
AM
EB
-
ET
TR
---
LED
No
.
Signal
name
Display
1
--
2
--
3
-
-
4
-
-
5
--
s
--
Pressure
sources
switching
solenoid
valve
8
--
9
--
0
-
-
-
BR
-
-
-
mmmmm
39
.
FUNCTION
MODE
:
FA2
-
ON
H
OFF
SIGNAL
-
Requirement
for
LED
"ON"
.
LED
No
.
2
ECM
entered
the
AEC
signal
emitted
from
TCS
C/M
.
LED
No
.
3
EAM
signal
goes
out
.
LED
No
.
4
ECM
entered
the
AEB
signal
emitted
from
TCS
C/M
.
LED
No
.
6
ECM
entered
the
AET
signal
emitted
from
TCS
C/M
.
LEDNo
.
7
ECM
entered
the
torque
control
signal
emit-
ted
from
TCM
.
40
.
FUNCTION
MODE
:
FA3
-
ON
H
OFF
SIGNAL
-
Requirement
for
LED
"ON"
.
LEDNo
.
7
Pressure
sources
switchingsolenoid
valve
is
in
function
.
NOTE
:
When
LED
No
.
7
blinks
with
the
test
mode
connector
connected
and
the
ignition
switch
turned
to
ON,
the
cor-
responding
part
is
functioning
properly
.
29
Page 45 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 2-7
[T3C41]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
LED
No
.
Signal
name
Display
1
Catalyst
CA
2
EGR
system
E1
California
model
identification
signal
FC
4
--
5
--
s
--
--
8
Rear
SUBARU LEGACY 1996 Service Repair Manual 2-7
[T3C41]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
LED
No
.
Signal
name
Display
1
Catalyst
CA
2
EGR
system
E1
California
model
identification
signal
FC
4
--
5
--
s
--
--
8
Rear](/manual-img/17/57433/w960_57433-44.png)
2-7
[T3C41]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
3
.
Diagnosis
System
LED
No
.
Signal
name
Display
1
Catalyst
CA
2
EGR
system
E1
California
model
identification
signal
FC
4
--
5
--
s
--
--
8
Rear
oxygen
sensor
signal
OR
9Front
oxygen
sensor
signal
02
o
-
1
CA
E1
FC
--
--
OR
02
-
LEDNo
.
Signal
name
Display
1
--
2
--
3
--
4
--
5
--
s
--
7
EGR
solenoid
valve
ER
8
--
9
--
~1
-
I
-
1
-
ER
--
-
ooaoo
00000
41
.
FUNCTION
MODE
:
FA4
-
ON
<-->
OFF
SIGNAL
-
Requirement
for
LED
"ON"
.
LED
No
.
1
Diagnosis
of
catalyzer
is
finished
.
LED
No
.
2Diagnosis
of
EGR
system
is
finished
.
LED
No
.
3
Vehicle
is
except
California
model
.
LED
No
.
8
Rear
oxygen
sensor
mixture
ratio
is
rich
.
LED
No
.
9
Front
oxygen
sensor
mixture
ratio
is
rich
.
42
.
FUNCTION
MODE
:
FA5
-
ON
H
OFF
SIGNAL
-
Requirement
for
LED
"ON"
.
LED
No
.
7
EGR
solenoid
valve
is
in
function
.
NOTE
:
When
LEDNo
.
7
blinks
with
the
test
mode
connector
connected
and
the
ignition
switch
turned
to
ON,
the
cor-
responding
part
is
functioning
properly
.
30
Page 46 of 2890
![SUBARU LEGACY 1996 Service Repair Manual
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T3C45]
2-7
3
.
Diagnosis
System
43
.
FB
MODE
FOR
ENGINE
Function
mode
AbbreviationContentsContents
of
display
Page
On-board
diagnostics
Current
trouble
code
indica SUBARU LEGACY 1996 Service Repair Manual
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T3C45]
2-7
3
.
Diagnosis
System
43
.
FB
MODE
FOR
ENGINE
Function
mode
AbbreviationContentsContents
of
display
Page
On-board
diagnostics
Current
trouble
code
indica](/manual-img/17/57433/w960_57433-45.png)
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T3C45]
2-7
3
.
Diagnosis
System
43
.
FB
MODE
FOR
ENGINE
Function
mode
AbbreviationContentsContents
of
display
Page
On-board
diagnostics
Current
trouble
code
indicated
by
FBOINSPECT
(Inspection)
on-board
diagnostics
after
clear
mem-
[T3E1]*2
ory
.
FB1
OBD
On-board
diagnostics
Current
trouble
code
indicated
by
14
(Read
data)
on-board
diagnostics
.
LOAD-F
Load
data
TW-F
Engine
coolant
temper-
aturesignal
ALPH-F
Throttleposition
signal
*
Freeze
frame
data
FB2
KBLR-F
Long
term
fuel
trim
*
Data
stored
at
the
time
of
trouble
15
Intake
manifold
abso-
occurrence,
is
shownon
display
.
MANI-F
lute
pressure
signal
EREV-F
Engine
speed
signal
VSP-F
Vehicle
speed
signal
QA-F
(P0100)
Mass
air
flow
signal
PS-F
(P0105)
Pressure
signal
PR-F
(P0106)
Pressure
signal
TW-r
(P0115)
Engine
coolant
temper-
ature
signal
THV-F
(P0120)
Throttleposition
signal
EGR
(P0403)
EGR
control
solenoid
,
Freeze
frame
data
FB3
valve
signal
9
Data
stored
at
the
time
of
trouble16
CPC
(P0443)
Purge
control
solenoid
occurrence,
is
shown
on
display
.
valve
signal
STSW
(P1100)
Start
switch
signal
Pressure
sources
BR1
(P1102)
switching
solenoid
valve
signal
FAN1
(P1500)
Radiator
fan
relay
1
signal
44
.
FC
MODE
FOR
ENGINE
Function
mode
Abbreviation
ContentsContents
of
display
Page
FCO
MEMORY
CLR
Back-up
memory
clear
Function
of
clearing
trouble
code
[T3D1]*2
stored
in
memory
.
45
.
FD
MODE
FOR
ENGINE
Function
mode
Abbreviation
ContentsContents
of
display
Page
FD01
FUEL
PUMP
FD02
CPCSOL
Function
of
checking
operation
offuel
FD03
RAD
FAN
Compulsory
valve
pump
relay,
purge
control
solenoid
A/C
ll
di
tf
l
39
FD04
A/C
RELAY
operation
check
an
re
revave,
ra
a
or
ay,
ay,
EGR
control
solenoid
valve
and
pres-
FD05
EGR
SOL
sure
sources
switching
valve
.
FD10
BR
SOL
NOTE
:
Because
valve
is
not
installed,
FD06,
FD07,
FD08,
FD09
and
FD11
will
be
displayed
but
non-functional
.
31
Page 47 of 2890
2-7
[T3C46]
ON-BOARD
DIAGNOSTICS
11
SYSTEM
3
.
Diagnosis
System
SELECT
SYSTEM
EGi
Y
:O,N
:/
l
1/1
SELECT
SYSTEM
AT
Y
:O,N
:/
H2M1150
SELECT
SYSTEM
AT
Y
:O,N
:/
1101
H2M1151I
OO
0FU0
,o
C
D
EFT
s
s
c,
s1
0
C3
fill
[1-11
FEJ
4567
i
DFE1
D
FE
1D
~~00
SUeARU
G3M0152I
46
.
READ
CURRENT
DATA
SHOWN
ON
DISPLAY
FOR
AT
.
(FUNCTION
MODE)
1)
Select
AT
mode
using
function
key
.
Press
thefunction
key
[/],
and
change
to
AT
mode
.
2)
Press
the
function
key
[0]
.
3)
Designate
mode
using
function
key
.
Refer
to
"READ
DATA
FUNCTION
KEY
LIST
FOR
AT"
3-2
[T3C6]*2
.
(Example
:
Press
[F][0]
[2]
[ENT]
in
that
order
.)
4)
Ensure
data
of
input
or
output
signal
is
shown
.
r
32
Page 48 of 2890
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[73c471
2-7
3
.
Diagnosis
System
47
.
READDATA
FUNCTION
KEY
LIST
FOR
AT
Function
mode
Contents
Abbr
.
Unit
F00
Mode
display
--
F01Battery
voltage
VB
V
F02
Vehicle
speed
sensor
1
VSP1
m/h
F03
Vehicle
speed
sensor
1
VSP1
km/h
F04
Vehicle
speed
sensor
2
VSP2
m/h
F05
Vehicle
speed
sensor
2
VSP2
km/h
F06
Engine
speed
EREV
rpm
F07
ATF
temperature
sensor
ATFT
deg
F
F08
ATF
temperature
sensor
ATFTdeg
C
F09
Throttleposition
sensor
THV
V
F10
Gear
position
GEAR
-
F11
Linepressureduty
PLDTY
F12
Lock-up
duty
LUDTY
F13
AWD
duty
4WDTY
F14
Throttleposition
sensor
power
supply
THVCC
V
F15
Mass
air
flow
sensor
~
AFM
~
V
33