1996 SUBARU LEGACY sensor

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

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

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

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

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T3C54]
2-7

3
.
Diagnosis
System

18
m/h

G3M0725

VSP2
(F04)

12
m/h

G3M0726

EREV
(F06)

1,500
rpm

G3M0727

ATFT
deg
F
(F07)

176
deg
F

G3M0728

THV
(F09)

4
.0
V

G3M0935

50
.
FUNCTION
MODE
:
F02

-
VEHICLE
SPEED
SENSOR
1
(VSP1)
-

"
F02
:
Vehicle
speed
is
indicated
in
mile
per
hour
(m/h)
.

"
F03
:
Vehicle
speed
is
indicated
in
kilometerper
hour

(km/h)
.

51
.
FUNCTION
MODE
:
F04

-
VEHICLE
SPEED
SENSOR
2
(VSP2)
-

"
F04
:
Vehicle
speed
is
indicated
in
mile
per
hour
(m/h)
.

"
F05
:
Vehicle
speed
is
indicated
in
kilometer
per
hour

(km/h)
.

52
.
FUNCTION
MODE
:
F06

-
ENGINE
SPEED
(EREV)
-

53
.
FUNCTION
MODE
:
F07

-
ATF
TEMPERATURE
SENSOR
(ATFT)
-

"
F07
:
ATF
temperature
is
indicated
in
"deg
F"
.

"
F08
:
ATF
temperature
is
indicated
in
"deg
C"
.

54
.
FUNCTION
MODE
:
F09

-
THROTTLE
POSITION
SENSOR
(THV)
-

35

2-7
[T3C55]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

3
.
Diagnosis
System

GEAR
.
(F10)

1
st

G3M0730

PLDTY
(Fl
1)

50%

G3M0731

LUDTY
(F12)

5%

G3M0732

4WDTY
(F13)

95%

G3M0733

THVCC
(F14)

5
.2
V

B3M0259

55
.
FUNCTION
MODE
:
F10

-
GEAR
POSITION
(GEAR)
-

56
.
FUNCTION
MODE
:
F11

-
LINE
PRESSURE
DUTY
(PLDTY)
-

57
.
FUNCTION
MODE
:
F12

-
LOCK-UP
DUTY
(LUDTY)
-

58
.
FUNCTION
MODE
:
F13

-
AWD
DUTY
(4WDTY)
-

59
.
FUNCTION
MODE
:
F14

-
THROTTLE
POSITION
SENSOR
POWER
SUPPLY

(THVCC)
-

36

2_7
[T501]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

5
.
Specified
Data

5
.
Specified
Data

1
.
ENGINE
CONTROLMODULE
(ECM)
I/O
SIGNAL

++u++u++u++u
++~~
++++

1
1
0

to
B84

9
11
1
8
1
7
11
6
1
5
1
1
4
1
3
1
U

44
4
8
7
7525B8584
161
u1
1

4443~
2
~
$Q
7$
9
~
8~
7
~

u
1
11
u
1
9
u

7
33
3231

6~
5
1

u
8
7

322

7
u
6
5
2222

43251
0
u

2

4
32
1

2121
11

6

OBD0092A

Signal
(V)

Content
Connector
Terminal
Ignition
SW
ON
Note
No
.
No
.
Engine
ON
(Idling)
(Engine
OFF)

Crankshaft
Signal
(+)884
8
0
-7-
+7
Sensor
output
waveform

position
Signal
(-)
B84
29
00
-

sensor
Shield
B84
54
00
-

Camshaft
Signal
(+)B84
70
-7-
+7
Sensor
output
waveform

position
Signal
(-)
B84
28
0
0
-

sensor
Shield
B84
5400
-

Mass
air
Signal
B84
5
0-0
.3
0
.8-
1.2
-

flow
Shield
B84
5700
-

sensor
GND
B84
2000
-

Fully
closed
:
0
.2
-
1
.0

Throttle
Signal
B84
6
Fully
opened
:
4
.2
-
4
.7

position
Power
B84
21
55
-
sensor
supply

GND
B84
2000
-

Front
Signal
B84
230
0-0
.9
-
oxygen

sensor
Shield
B84
56
00
-

Rear
Signal
B84
240
0-0
.9
-
oxygen

sensor
Shield
B84
56
0
0
-

Engine
coolant
BS4
22
1
.0-1
.41
.0-1
.4
After
warm-up
re
sensor
temperature

"5"
and
"0"
are
repeatedly
speed
sensor
B84
830or50or5
displayed
when
vehicle
is

driven
.

165
u
1
1
u
2
11
uuuuu2
1

7
3
333
31
3
2
2
22
2
2
2
2
21
1
1
1
7
4
2
1

44

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[TSO1]
2-7
5
.
Specified
Data

C
t
T
il
Signal
(V)

Content
onnec
or
erm
na
Ignition
SW
ON
Note
No
.
No
.
Engine
ON
(Idling)
(Engine
OFF)

Starter
switch
B84
8600
Cranking
:
8
to
14

A/C
switch
B84
60
ON
:
10
-
13
ON
:
13
-
14

OFF
:
0
OFF
:
0

Ignition
switch
B84
85
10-13
13-
14
-

Neutral
position
switch
B84
82
ON
:
0
Switch
is
ON
when
shift
isin
"
"
OFF
:
5
.0f0
.5
"N
or
"P
position
.

Test
mode
connector
884
84
55
When
connected
:
0

Knock
Signal
B84
32
.8
2
.8
-

sensor
Shield
B84
56
00
-

AT/MT
identification
B84
81
55
When
measuring
voltage

between
ECM
and
body
.

Back-up
power
supply
B84
39
10-1313-14
Ignition
switch
"OFF"
:
10
-
13
Control
unit
power
1
supply
B84

2
10-13
13-14
-

Ignition
#
1,
#
2
B84
41
0
1
-3
.4
-

control
#
3,
#
4
B84
400
1
-3
.4
-

#
1
B84
96
10-13
1-14
Waveform

Fuel
#
2
B84
70
10-13
1-14
Waveform

injector
#
3
B84
44
10-13
1-14
Waveform

#
4
B84
16
10-13
1
-14
Waveform

Idle
air
OPEN
endB84
14
-
1
-13
Waveform
control

solenoid
CLOSE
B84
13
-
13-1
Waveform
valve
end

Fuel
pump
relay
g84
32
ON
:
0
.5,
or
less0
.5,
or
less
-
control
OFF
:
10
-
13

A/C
relay
control
B84
31
ON
:
0
.5,
orless
ON
:
0
.5,
or
less
OFF
:
10
-
13
OFF
:
13
-
14

Radiator
fan
relay
1
ON
:
0
.5,
or
less
ON
:
0
.5,
or
less

control

B84
74
OFF
:
10
-
13
OFF
:
13
-
14

Radiator
fan
relay2

B84
73

ON
:
0
.5,
or
less
ON
:
0
.5,
or
less
With
A/C
vehicles
only
control
OFF
:
10
-
13
OFF
:
13
-
14

Self-shutoff
control
B84
63
10-13
13-14
-

Malfunction
indicator
B84
58Light
"ON"
:
1,
or
less

lamp
Light
"OFF"
:
10
-
14

Engine
speed
output
B84
64
-
0
-
13,
or
moreWaveform

Torque
control
signal
B84
79
5
5
-

Mass
air
flow
signal
B84
47
0-0
.3
0
.8-
1
.2
-

Purge
control
solenoid

B84
72

ON
:
1,
or
less
ON
:
1,
or
less

valve
OFF
:
10
-
13
OFF
:
13
-
14

Atmospheric
pressure
B84
263
.9-4
.1
2
.0-2
.3
-
sensor

Pressure
sources
ON
:
1,
or
less
ON
:
1,
or
less
switching
solenoid
B84
15
OFF
:
10
-
13
OFF
:
13
-
14valve

EGR
solenoid
valve
B84
71
ON
:
1,
or
less
ON
:
1,
or
less

OFF
:
10
-
13
OFF
:
13
-
14
Front
oxygen
sensor
g84
38
0-1
.0
0-1
.0
-
heater
signal

45