Page 97 of 2890
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
Page 98 of 2890
ON-BOARD
DIAGNOSTICS
11
SYSTEM
Riinnoll
2-7
11
.
DiagnosticsChart
with
Trouble
Code
M
:
DTC
P0136
-
REAR
OXYGEN
SENSOR
CIRCUIT
MALFUNCTION
(R02
-
V)
-
WIRING
DIAGRAM
:
n
SBF-2
O
I
(
Rear
oxygenoxygen
sensor
~E
f
819
T5
T6
(
Rear
t
Cal
model)
=
I
~~
_
.r,
.ra~
ECM
819
1
u34
u
56
u
78
uu
910
u
11
1
12
1-
V
1314u1516
1
8
1191
20
1
21237734
1
424
3
44
8
0
Rear
0sensor
(Cal
.model
only)
O
847819
T6
1
234
P9
IS
B2M0789
NOTE
:
For
the
diagnostic
procedure
on
rear
oxygen
sensor
cir-
cuit
malfunction
(DTC
P0136),
referto
2-7
[T10M0]*2
.
87
Page 99 of 2890
2-7
[TI
1N0]
ON-BOARD
DIAGNOSTICS
11
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
N
:
DTC
P0139
-
REAR
OXYGEN
SENSOR
CIRCUIT
SLOW
RESPONSE
(R02
-
R)
-
WIRING
DIAGRAM
:
Main
re
0
B47
SBF-2
Rear
oxygen
sensor
O
B~9
O
T6
(Except
Cal
model)
--
-
-
-
-
--
-
-
---
-
-
-
ECM
~
---
Rear
oxygen
sensor
819
(Ca
l
.model
only)
40
O
8~7
B19
T6
1zu
u
111
>
>
1
1
2D
212
2317
425141
lablR
273412
1
2
7
81
7~
90
~
234
3
6
43
u
8
B2M0789
NOTE
:
For
the
diagnostic
procedure
on
rear
oxygen
sensor
cir-
cuit
slow
response
(DTC
P0139),
referto
2-7
[T10N0]*2
.
88
Page 100 of 2890
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[Ti1ooi
2-7
11
.
Diagnostics
Chart
with
Trouble
Code
O
:
DTC
P0141
-
REAR
OXYGENSENSOR
HEATER
CIRCUIT
MALFUNCTION
(R02H)
-
WIRING
DIAGRAM
:
Main
rel
0
<-O
O
o
B47
SBF-2
Rear
oxygen
sensor
819
O
T6
Cal
model)
1-1
--
1991
ECM
Rearoxygensensor
(Cal
.model
only)
O
O
B47819
1
34
T6
9012
3
4
1234
5
6
43
B2M079U
I
NOTE
:
For
the
diagnostic
procedure
on
rear
oxygen
sensor
heater
circuit
malfunction
(DTC
P0141),
referto
2-7
[T1000]*2
.
89
Page 101 of 2890
2-7
[T11Po]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
P
:
DTC
P0170
-
FUEL
TRIM
MALFUNCTION
(FUEL)
-
NOTE
:
For
the
diagnostic
(DTC
P0170),
refer
procedure
on
fueltrim
malfunction
to
2-7
[T10P0]*2
.
90
Page 102 of 2890
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[TylTOi
2-7
11
.
DiagnosticsChart
with
Trouble
Code
Q
:
DTC
P0201
-
FUELINJECTOR
CIRCUIT
MALFUNCTION
-
#1
(INJ1)
-
R
:
DTC
P0202
-
FUELINJECTOR
CIRCUIT
MALFUNCTION
-
#2
(INJ2)
-
S
:
DTC
P0203
-
FUELINJECTOR
CIRCUIT
MALFUNCTION
-
#3
(INJ3)
-
T
:
DTC
P0204
-
FUELINJECTOR
CIRCUIT
MALFUNCTION
-
#4
(INJ4)
-
WIRING
DIAGRAM
:
Main
relay
0
0
0-
0
B47
SBF-2
(D
e
'-`
B22
E3E6
E17884
#3#4
E5
E16
ECM
#1
#2
B84B22B41
E5E6
E16
E17
1
U
131
U1
1
3132
6
2
9
1
40
1
4
11421
43
1
44
1
1
234
10
.1
0L718
P
1
58960
63
646B6
9
1011
12
1
14116
5
1~
B
41
3,
B2M0784
NOTE
:
Forthe
diagnostic
procedure
on
fuel
injector
circuit
mal-
function
-
#1
(DTC
P0201),
#2
(DTC
P0202),
#3
(DTC
P0203)
and
#4
(DTC
P0204),
refer
to
2-7
[T10Q0,
T10R0,
T10S0
and
T10T0]*2
.
91
Page 103 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 2-7
[T11U0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
U
:
DTC
P0301
-
CYLINDER
1
MISFIRE
DETECTED
(MIS-1)
-
V
:
DTC
P0302
-
CYLINDER
2
MISFIRE
DETECTED
(MIS-2)
-
SUBARU LEGACY 1996 Service Repair Manual 2-7
[T11U0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
U
:
DTC
P0301
-
CYLINDER
1
MISFIRE
DETECTED
(MIS-1)
-
V
:
DTC
P0302
-
CYLINDER
2
MISFIRE
DETECTED
(MIS-2)
-](/manual-img/17/57433/w960_57433-102.png)
2-7
[T11U0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
U
:
DTC
P0301
-
CYLINDER
1
MISFIRE
DETECTED
(MIS-1)
-
V
:
DTC
P0302
-
CYLINDER
2
MISFIRE
DETECTED
(MIS-2)
-
W
:
DTC
P0303
-
CYLINDER
3
MISFIRE
DETECTED
(MIS-3)
-
X
:
DTC
P0304
-
CYLINDER
4
MISFIRE
DETECTED
(MIS-4)
-
WIRING
DIAGRAM
:
Crankshaft
Camshaft
Main
rela
y
position
position
Mass
air
o
sensorsensor
flow
sensor
0
O
E10E15
O
B47
ECM
SBF-2
E8
B12
E13
E6
E17
#3
#4
77
Ll
-
t
:A
Engine
Neutral
Throttle
~
E16
coolant
positionposition
temperature
switch
sensor
#1#2
sensor
Fuel
injectors
1
4
10
111
1
14
1
1
1I181920
2122
23
24
25262728
29
3132
33
34353637
3940
4142
4344454647484950
5152
53545556575859
1
60
61
1
62
1
63
1
64
1
65
1
66
1
6L/
1
698
9
0
I
1111721
1741
51761771781191801811827831
8485
861$7
888990
9192
9394951961
I
B22E10E15
O
O
B12E13
B41
Efi
EI7
1234
1
2
5678
~
Et6
5678
_3
1
ill
1
2345
9101112
1
23
56
13141516
1
2
82M0791
NOTE
:
For
the
diagnostic
procedure
on
cylinder
misfire
detected
-
#1
(DTC
P0301),
#2
(DTC
P0302),
#3
(DTC
P0303)
and
#4
(DTC
P0304),
referto
2-7
[T10U0,
T10V0,
T10W0
and
T10X0]*2
.
92
Page 104 of 2890
ON-BOARD
DIAGNOSTICS
II
SYSTEM
Riivol
2-7
11
.
Diagnostics
Chart
with
Trouble
Code
Y
:
DTC
P0325
-
KNOCK
SENSOR
CIRCUIT
MALFUNCTION
(KNOCK)
-
WIRING
DIAGRAM
:
B84
B21
E2
E14
-------------------------
7
------------------
--
41-=
ECM
6
41
7
Knock
sensor
B84
1
2
345678
171819
20
2122
2324
2526
27282930
4546
4148
4950
5152
535455
1
5657
71727314157677781980818283
B83
B21E14
1234
5678
0
1
234
1
9
1
10
1
11
1
12
[l
B2M0559
NOTE
:
For
the
diagnostic
procedure
on
knock
sensor
circuit
mal-
function
(DTC
P0325),
refer
to
2-7
[T10Y0]*2
.
93