1996 SUBARU LEGACY relay

2-7
(T6A1]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

6
.
Wiring
Diagram
and
Wiring
Harness

Combination
mete

Tachometer
il0
:e

i
12
:
b

Malfunction
I
il4
:c
indicator
~--
lamp

Speedometer
circuit

ill

Main
relay
~`1
o
B47
Twi
sted
wire

0

846
E

:~~M
R
Fuel
pump
relay

6
.
Wiring
Diagram
and
Wiring
Harness

A
:
WIRING
DIAGRAM

1
.
ENGINE
ELECTRICAL
SYSTEM

To
Power
Supply
Routing

FB-20
~

FUSE
Na
15

MB-3

SBF-2

FB-4

FUSE
Na
l6

ST

IG
SW

FB-22

FUSE
Na
15
I2
B37

i3
B39

S
.
M
.
J
.
[Refer
to
foldout
page
.)

R58R57RIS

Fuel
pump

Inhibitor
switch

812
F45
B62

Check
connector
a
v
879

mvov-~o
M
PPm
M
f~
vrn
f~
Om
.O

Enginecontro
I
B84
module

14001

B97B17

Rl

Vehicle
speed
sensor
2

g7
(B
I
ac
k)
i
It
(g
)(Green)
Rl5
(B
I
ec
k)
R58

1212
123
34
3456
456

i
14
(L
1
ght
gray)
I101l2
(L
I
ght
gray)

12345678910111213
123456789101111314116

50

B47
(Brown)
B12
(Gray)

1
2
1
23
4345
67
8
5
69
1011
12

F45
B79
(Gray)

1
23
4567
8
910
11121R314

(2
i3
(Brown)

2345
6789
1234
678910
1'1
11
1
1
1
13
1
14
1
15
1
16
1
17
1
18
1
19
1
20,011
1
12
1
13
1
14
1
1
51
16
1
17
1
18
1
19
1
20
1
21
1
22
1

BUR10-02A

ON-BOARD
DIAGNOSTICS
II
SYSTEM
trscoi
2-7

9
.
Diagnostics
for
Engine
Starting
Failure

C
:
CONTROL
MODULE
POWER
SUPPLY
AND

GROUND
LINE

WIRING
DIAGRAM
:

Main
relay

0
0

B47
To
idle
air
control
solenoid
valve,purge
control
SBF-2
solenoid
valve
etc
.

B84

ECM

B22
O
E
L1

O
B47
B22

1234
24252627282930
55
1
56
1
57
40
1
41
1
42
1
43
1
44
1
1
1
7Q
!
1
1
1
6
34
91D1112
5
1
§4§5
56
13141516

82M0782

NOTE
:

For
the
diagnostic
procedure
on
control
module
power

supply
and
ground
line,
referto
2-7
[T8C0]~r2
.

1
2
34U
56
U
78
UU9
10
U
1112
U
1314
01516
171
B
19
202122
23
3132
33
3
3536
37
38
39
45
71
46477273484974
75
50
51
16775253787954BO
81
82B3585984BS60
61
868762638B8964
65
90
91
6667
92
936

63

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[M0]
2-7
9
.
Diagnostics
for
Engine
Starting
Failure

E
:
FUEL
PUMP
CIRCUIT

WIRING
DIAGRAM
:

Fuel
pump

#F

S
.M
.J
.

A57R15
R1
B97

N7--

E

Fuel
pump
relay

0
7

SBF-2

~-
No
.16
IG

-L

862F45

cL
.M

O

111213111516
R5B
Ri5
B46

*9
3637
39
412
4344
1
23
1
2
1
2
636466
67
6869
70
4
56
345634
8889
90
9192
9
96
u
SBF-4

~5

12345
69
1112131
15161718192
10

B2M0783

NOTE
:

For
the
diagnostic
procedure
on
fuel
pump
circuit,
refer
to

2-7
[T8EOj*2
.

65

2-7[T9F0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
9
.
Diagnostics
for
Engine
Starting
Failure

F
:
FUEL
INJECTOR
CIRCUIT

WIRING
DIAGRAM
:

Main
relay
0
0

847

SBF-2

884
B22
E3E6
E11

#3
tt4

E5
E16
ECM
#1
#2

B84B22847E5
E6
E16E17

11
1234
34
678

1
[

1
2
903
9
101112
34
9
13141
i6

82M0784

NOTE
:

Forthe
diagnostic
procedure
on
fuel
injector
circuit,
refer

to
2-7
[T10Q0]*2
.

66

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T11aoj
2-7

11
.
Diagnostics
Chart
with
Trouble
Code

DTC

No
.

Abbreviation

(Subaru
select
monitor)
Item
Page

P0705
ATRNG
Transmissionrange
sensor
circuit
malfunction
108

P0710
ATF
Transmission
fluid
temperature
sensor
circuit
malfunction
109

P0720
ATVSP
Output
speed
sensor
(vehicle
speed
sensor
1)
circuit
malfunction
110

P0725
ATNE
Engine
speed
input
circuit
malfunction
111

P0731
ATGR1
Gear
1
incorrect
ratio

P0732
ATGR2
Gear
2
incorrect
ratio
1
2
P0733
ATGR3
Gear
3
incorrect
ratio
1

P0734
ATGR4
Gear
4
incorrect
ratio

P0740
ATLU
-
F
Torque
converter
clutch
system
malfunction
114

P0743
ATLU
Torque
converter
clutch
system
(duty
solenoid
B)
electrical
115

P0748
ATPL
Pressure
control
solenoid
(duty
solenoid
A)
electrical
116

P0753
ATSFTi
Shift
solenoid
A
(shift
solenoid
1)
electrical
117

P0758
ATSFT2
Shift
solenoid
B
(shift
solenoid
2)
electrical
118

P0760
ATOVR
-
F
Shift
solenoid
C
(shift
solenoid
3)
malfunction
119

P0763
ATOVR
Shift
solenoid
C
(shift
solenoid
3)
electrical
120

P1100
ST
-
SW
Starter
switch
circuit
malfunction
121

P1101
N/P
-
SW
Neutral
position
switch
circuit
malfunction
122

P1102
BR
Pressure
sources
switching
solenoid
valve
circuit
malfunction
123

P1103
TRQ
Engine
torque
control
signal
circuit
malfunction
124

P1500
FAN
-
1
Radiator
fan
relay
1
circuit
malfunction
125

P1502
FAN
-
F
Radiator
fan
function
problem
126

P1700
ATTH
Throttle
position
sensor
circuit
malfunction
127

P1701
ATCRS
Cruise
control
set
signal
circuit
malfunction
128

P1702
ATDIAG
Automatic
transmission
diagnosis
inputsignal
circuit
malfunction
I
129
75

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
[T11L0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
DiagnosticsChart
with
Trouble
Code

L
:
DTC
P0135

-
FRONT
OXYGEN
SENSOR
HEATER
CIRCUIT

MALFUNCTION
(F02H)
-

WIRING
DIAGRAM
:

Main
relay
0

0

-i
~
r

847

SBF-2

O
818
Front
oxygensensor
E
8

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

ECM

OOE

O
e+~
s,a

u
U
15161
u
17181
uu
19
1101
u
I
u
131pu
44
X
234

M56

1
1819
21
342
2
23
g
8

7
L57
jjj%1
667
D
1213
1
/417517517
7
1181901610210631
1
6616
1011,
1
234

B2M0788

NOTE
:

Forthe
diagnostic
procedure
on
front
oxygen
sensor

heater
circuit
malfunction
(DTC
P0135),
refer
to
2-7

[T10L0)*2
.

86