1996 SUBARU LEGACY diagram

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T9G0]
2-7
9
.
Diagnostics
for
Engine
Starting
Failure

G
:
CRANKSHAFT
POSITION
SENSOR
CIRCUIT

WIRING
DIAGRAM
:

B84
B20
E1

ECM
''--------

E10

Crankshaft
position
sensor

O

Crankshaft
sprocket

E84

B20
E10

1
23

456
12

1
23456
7
8

1718190
21
2
2324
28290

45
1
46
1
4
7
1
48
1
49
150

11
1
521
53
1
54
55
5657

7
1
721731
1
4
175
11
6
/
80
81
8283

B2M0529

NOTE
:

For
the
diagnostic
procedure
on
crankshaft
position
sen-

sor
circuit,
referto
2-7
[T1OZ0]*2
.

67

2-7
[T9H0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

9
.
Diagnostics
for
Engine
StartingFailure

H
:
CAMSHAFT
POSITION
SENSOR
CIRCUIT

WIRING
DIAGRAM
:

B84

B20
E1

------------

ECM
T
..........
.r

E15
Camshaft
pulley

Camshaft
position
sensor

B84

B20E15
0

123
456
i2

82M0530

NOTE
:

For
the
diagnostic
procedure
on
crankshaft
position
sen-

0AA0]*2
.
sor
circuit,
referto
2-7
[T1

~

1

2

11

3

2

4

21

u
5

4

6
u
7
8

29

u

0

4546
47484950
51
5253545556
51

1
469
80
1
82
3

68

2-7
[T11B0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code

B
:
DTC
P0100

-
MASS
AIR
FLOW
SENSOR
CIRCUIT

MALFUNCTION
(QA)
-

WIRING
DIAGRAM
:

Main
relay

0
0

847

17
SBF-2
-
-
--
-
---
-
-
-
-
------
-
-
-
-
-
-
--
--------------------------11
ECM

E
(a
,~
a0
0

4
O
Mass
air
flow
sensor

12u34
u
56
u
78
u
1
234
171
192021
232
2526211
2
6
8

M56
4450
515
5355
59101112
7172
17576
77
7880
81
1
131
4
1516
1
2345

B2M0785

NOTE
:

For
the
diagnostic
procedure
on
mass
air
flow
sensor
cir-

cuit
malfunction
(DTC
P0100),
referto
2-7
[T10B0]*2
.

76

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T1ico]
2-7

11
.
Diagnostics
Chart
with
Trouble
Code

C
:
DTC
P0101

-
MASS
AIR
FLOW
SENSOR
CIRCUIT

RANGE/PERFORMANCE
PROBLEM

(QA
-
R)
-

WIRING
DIAGRAM
:

Main
relay
0
0

B47

SBF-2

--------------------------11
'7

ECM

Ei
0
B12
0

O
Mass
a
ir
flowsensor

0

1
2u
4
u
56
u
78u
1234
1711920Zt
23
1526
271
34
6
8

M56
464
1
51152
153M
5
9101112
7112
747
76
7718
81
283
13141
16
1
234
5

82M0785

NOTE
:

For
the
diagnostic
procedure
on
mass
air
flow
sensor
cir-

cuit
range/performanceproblem
(DTC
P0101),
refer
to
2-7

[T10C0]*2
.

77

2-7
[TI
1D0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

11
.
Diagnostics
Chart
with
Trouble
Code

D
:
DTC
P0105

-
PRESSURE
SENSOR
CIRCUIT

MALFUNCTION
(P
-
S)
-

WIRING
DIAGRAM
:

Main
rely
0
0
Pressure
sources
Pressure
switching
solenoid
sensor
valve

-it
r

O
CL~J
Bt
H
8~7

0

i2u3a
u
56u
78u--
u
~ot1
u
u
lt
1
1819
011
22
2168304~73447677
11
5

SBF-2

o
a,

123
~
5
6

e2nno7as
I

NOTE
:

For
the
diagnostic
procedure
on
pressure
sensor
circuit

malfunction
(DTC
P0105),
refer
to
2-7
[T10D0]*2
.

78

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T11EO]
2-7

11
.
DiagnosticsChart
with
Trouble
Code

E
:
DTC
P0106

-
PRESSURE
SENSOR
CIRCUIT

RANGE/PERFORMANCE
PROBLEM
(PS
-
R)
-

WIRING
DIAGRAM
:

OQ
e,
9

30
11
11
22
1

M
,5
6
14
1~1
3
~
r
--
u

B2M0786

NOTE
:

For
the
diagnostic
procedure
on
pressure
sensor
circuit

range/performance
problem
(DTC
P0106),
refer
to
2-7

[T10E0]*2
.

79

2-7
[T11F0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

11
.
Diagnostics
Chart
with
Trouble
Code

F
:
DTC
P0115

-
ENGINE
COOLANT
TEMPERATURE

SENSOR
CIRCUIT
MALFUNCTION
(TW)
-

WIRING
DIAGRAM
:

B84
B21
E2E8

ECM
2-Q
FE

884

1
2u34
u
56
u
78
u

171819
20
2122
23242526272829
30

4546
47
484950
5152
53
54555657
71127314757671787980818283

4_Lr

B21

1234
5678

9
1
10
1
11
1
12
~

Engine
coolant
temperature
sensor

E8

12

82M0539

NOTE
:

For
the
diagnostic

ature
sensor
circuit

[T10F0]*2
.

procedure
on
engine
coolant
temper-

malfunction
(DTC
P0115),
refer
to
2-7

80

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T11GOj
2-7

11
.
Diagnostics
Chart
with
Trouble
Code

G
:
DTC
P0120

-
THROTTLE
POSITION
SENSOR
CIRCUIT

MALFUNCTION
(THV)
-

WIRING
DIAGRAM
:

B84

B21
E2
E13

Throttle
ECM
-21
position
sensor

B84
821
E13

12u34
u
56
u
78
u

171819
20
2122
2324
25
26
2728
29
30
45
1
46
1
47
1
48
1
49
1
50
5152
53545557
7172
73
7415
76
7778
79
808182
83

1234
5678
1
239
1
10
1
11
1
12

82M0540

NOTE
:

For
the
diagnostic

circuit
malfunction

procedure
on
throttle
position
sensor

(DTC
P0120),
refer
to
2-7
[T10G0]*2
.

81