1996 SUBARU LEGACY Hold

2-T
[T11A0]
ON-BOARD
DIAGNOSTICS
11
SYSTEM

11
.
Diagnostics
Chart
with
Trouble
Code

11
.
Diagnostics
Chart
with
Trouble
Code
A
:
DIAGNOSTIC
TROUBLE
CODE
(DTC)
LIST

DTC

No
.

Abbreviation

(Subaru
select
monitor)Item
Page

P0100
QA
Mass
air
flow
sensor
circuit
malfunction
76

P0101
QA
-
RMass
air
flow
sensor
circuit
range/performance
problem
77

P0105
P
-
S
Pressure
sensor
circuit
malfunction
78

P0106
PS
-
R
Pressure
sensor
circuit
range/performance
problem
79

P0115
TW
Engine
coolant
temperature
sensor
circuit
malfunction
80

P0120
THV
Throttleposition
sensor
circuit
malfunction
81

P0121
TH
-
R
Throttleposition
sensor
circuit
range/performance
problem
82

P0125
TW
-
CL
Insufficient
coolant
temperature
for
closed
loop
fuel
control
83

P0130
F02
-
V
Front
oxygen
sensor
circuit
malfunction
84

P0133
F02
-
R
Front
oxygen
sensor
circuit
slowresponse
85

P0135
F02H
Front
oxygen
sensor
heater
circuit
malfunction
86

P0136
R02
-
V
Rear
oxygen
sensor
circuit
malfunction
87

P0139
R02
-
R
Rear
oxygen
sensor
circuit
slowresponse88

P0141
R02H
Rear
oxygen
sensor
heater
circuit
malfunction
89

P0170
FUEL
Fuel
trim
malfunction
90

P0201
INJ1Fuel
injector
circuit
malfunction
-
#1

P0202
INJ2Fuel
injector
circuit
malfunction
-
#2
91
P0203
INJ3Fuel
injector
circuit
malfunction
-
#3

P0204
INJ4Fuel
injector
circuit
malfunction
-
#4

P0301
MIS
-
1
Cylinder
1
misfire
detected

P0302
MIS
-
2
Cylinder
2
misfire
detected
2
P0303
MIS
-
3
Cylinder
3
misfire
detected
9

P0304
MIS
-
4
Cylinder
4
misfire
detected

P0325
KNOCK
Knock
sensor
circuit
malfunction
93

P0335
CRANK
Crankshaft
position
sensor
circuit
malfunction
94

P0340
CAM
Camshaft
position
sensor
circuit
malfunction
95

P0400
EGR
Exhaust
gas
recirculation
flow
malfunction
96

P0403
EGRSOL
Exhaust
gas
recirculation
circuit
malfunction
97

P0420
CAT
Catalyst
system
efficiency
below
threshold
98

P0441
CPC
-
F
Evaporative
emission
control
system
incorrect
purge
flow
99

P0443
CPC
Evaporative
emission
control
system
purge
control
valve
circuit
malfunction
100

P0500
VSP
Vehicle
speed
sensor
malfunction
101

P0505
ISC
Idle
control
system
malfunction
102

P0506
ISC
-
L
Idle
control
system
RPM
lower
than
expected
103

P0507
ISC
-
H
Idle
control
system
RPM
higher
than
expected
104

P0600
-
Serial
communication
link
malfunction
105

P0601
RAM
Internal
control
module
memory
check
sum
error
106

P0703
ATBRK
Brake
switch
input
malfunction
T
107
I

74

2-7
[T11AD0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

11
.
Diagnostics
Chart
with
Trouble
Code

B41

Main
rel
0
r-0
O
o

B84

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

ECM
----------
--~
I

883

B84

AD
:
DTC
P0420

-
CATALYST
SYSTEM
EFFICIENCY
BELOW

THRESHOLD(CAT)
-

WIRING
DIAGRAM
:

I'Il

818

Front
oxygen
sensor

1
46
81
.-f
-U
1
9
1
10
1
U
1112
U
1314U1516
171819
20
2122
128
2930
3132
3314
1
35
1
36
1
37
3839
404142
4344
45447
48
429
1
5L0
5125210
45556
5758
59
60b1
1
62
1
63
1
64
1
65
1
66
1
6/
1
68
1
6910
1
2
4
6
B
19
80818283485
B687
8889909192
9394
9596

O
I'
II
819
O
I`t'I
O

819
~
~
T6

!l

?
Rear
oxygen

ox
yg
en
sensor
(Ex(Except
Cal
.model)
sensor
(Ca
I
.mode
I
only)
883847B18
T6

B19

2121
~
43
1
234
56
10
V

B2M0794

NOTE
:

For
the
diagnostic
procedure
on
catalyst
system
efficiency

below
threshold
(DTC
P0420),
referto
2-7
[T10AD0J*2
.

98

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T»BGO]
2-7

11
.
Diagnostics
Chart
with
Trouble
Code

BG
:
DTC
P1500

-
RADIATOR
FANRELAY
1
CIRCUIT

MALFUNCTION
(FAN
-1)
-

WIRING
DIAGRAM
:

Ignition
switch
~-1

Sub
fanrelay
1

A/C
relay
holder

B71FTIF28
O
O
F31
a
:
F10
e
:
B52

42
C12
32
344
32
62841D
X29
0116

Fl3
F45

34
1
2
3
~
1111131
1516171819
O~~I

u
112
1
L1
1
3
1
4
1
U
56
U
78

11
15
1

82M0799

NOTE
:

For
the
diagnostic
procedure
on
radiator
fan
relay
1
cir-

cuit
malfunction
(DTC
P1500),
referto
2-7
[T10B10]*2
.

125

2-7
[T11BH0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

11
.
Diagnostics
Chart
with
Trouble
Code

BH
:
DTC
P1502

-
RADIATOR
FAN
FUNCTION
PROBLEM

(FAN
-
F)
-

Ignition
switch
C

B72

Sub
fanrelay
t

rn

a
:
F~0

b
:
F~1

e
:O

Main
fan
motor

f17

motor

f16

WIRING
DIAGRAM
:

FL1
.258

58F-4

O
No
.
t
-
FMF~
F45862
O

ECM
21

F21
J
u
l
F28
J
u
l
O
~
O

U
IJ
boW
booms
booms

20A10A
Main
fan
Main
fan
Sub
fan
relay
1
relay
2
relay
2

A/C
relay
holder

e
:
F40
b
:
f41
e
:
(@)

F
1
2
345
&N
rQ3
MZMNTM
F7281
9
110

(9)
QD
(~D
(~D(~D
(N)Q~D
0~~)
(D
1
2u34
!J
56
u
78
u

123
3
~
123
~1
4
1~12121~
0
1

82M0800

NOTE
:

Forthe
diagnostic
procedure
on
radiator
fan
function

problem
(DTC
P1502),
referto
2-7
[T10BJ0]*2
.

126

6-3
[D601]
WIRING
DIAGRAM

6
.
Wiring
Diagram

6
.
Wiring
Diagram

Batterycurrent
1
.
POWER
SUPPLY
ROUTING

Current
fromignition
switch
IG
terminal

---
Current
fromignition
switch
ACC
terminal

-------
Other
currents
Mainfuse
box
(M/B)
g27

SBF-5
45A
~
L
SBF-4
45A
,
BY
r-,
coc_
:
/CA
1
Do

BF-1
30A

BF-2
30A

N
m
m

M/B
FUSE/RELAY
LOCATION

826
-
MB-1
2
Rw
M
B-2
1
MB-3
R

-
MB-4

(

:8

~V

:

9)
,
R

F35

Headlight
No
.
22
15A
5
W
relay
LHNo
.
23
20A
Br
6
°
No
.
24
15A
RL
-----
---------
------0'
~-P--
1
---------°^----
MB-6
7
LB
7
No
.
26
15A
BY
°
~

~
_
No
.
25
15A

3
--°--°
BR
MB-8
.J
4

LR
2
MB-9

Headlight
relay
RH
F38

r~W

WC
relay
holder

mmllmm

O
~
SBFSBF
~~~
~
Head

i~25
N0
'
24
Headlight
4A
No,
relay
RH

~
SBF
~
38fSBf
N0
.
b

F/B

a

N0
.
--
2
:
0
N0
.f
o
N
.
176
N
RU7
.
R-DEF
N0
.
7
N0
.
N
.
3
0N
.
It
.4
~~
P
I
.7
LEI]

o
O
N0
.
19N0
.
12N0
.
~y~~~,~~~
ILLUrtI
.
O

N0.21
N0
.
14
N0
.7
MAIN
FAN
,

D

2

IF--

F26

F38
(B
I
ec
k)

2

B27

123

--'----
ALT-1

B26
(B
I
ac
k)

F26
(Grey)

12

F35
(B
I
ec
k)

1234
5678

BURO1-01A

s-$
[D601]
WIRING
DIAGRAM

6
.
Wiring
Diagram

No
.
Load

MB-2
Powerwindow
circuit
breaker

Engine
control
module

Fuel
pump
relay
MB-3
Main
relay

OBD-II
service
connector

MB-4A/C
relay
holder

MB-6
Headlight
LH

Diode
(Lighting)

Lighting
switch

Combination
meter
M
B_$

Headlight
RH

Combination
meter

Door
lock
timer

MB-9
Luggage
room
light

Radio

Room
light

MB-10
A/C
relay
holder

ALT-1
Combination
meter

IG
A/C
relay
holder

Cruise
control
module

ST
Engine
control
module

Inhibitor
switch

FB-2
Diode
(A/C)

Sub
fan
motor
FB-3
Sub
fan
relay-2

Engine
control
module

Fuel
pump
relay
FB-4
Ignition
coil

Transmission
control
module

Side
marker
light
LH
FB-6
Side
marker
light
RH

FB-7Door
lock
timer

FB-9Hazard
switch

AT
shift
lock
control
module
FB-10
Key
warning
switch

Power
antenna

FB-11
Radio

FB-12
Cigarette
lighter

FB-13
Remote
control
rearview
mirrorswitch

AT
shift
lock
control
module

Combination
switch
Front
washer
motor
FB-14
Front
wipermotor

Rear
washer
motor

Rear
wipermotor

Rear
wiper
relay

FB-15Transmission
control
module

Na
Load

Rear
defogger

FB-16
Rear
defogger
condenser

Reardefogger
switch

FB-17
Rear
defogger
switch

FB-18
AT
shift
lock
control
module

Inhibitor
switch

FB-19
Hazard
switch

Combination
meter
FB-20
Mode
control
panel
FB-21
Combination
meter
(Airbag)

Blower
motor
relay

Check
connector

FB-22
FRESH/RECIRC
actuator

Mode
actuator

Powerwindow
relay

Seat
belt
timer

FB-23
Airbag
.
control
module

FB-24
Airbag
control
module

FB-25
Lighting
switch

FB-26
Parking
switch

FB-27
Parking
switch

FB-28
Illumination
light

FB-29
Illumination
light

FB-30
Stop
light
switch

Stop
&
brake
switch

FB-31
Horn
relay

FB-32
Blower
motor
relay

FB-33
Parking
switch

License
plate
light
LH

License
plate
light
RH

FB-34
Rear
combination
light
LH

Rear
combination
light
RH

Rear
finisher
light
LH

Rear
finisher
light
RH

FB-35
Cruise
control
main
switch
Cruise
control
module

WIRING
DIAGRAM
[113so31
6-3

6
.
Wiring
Diagram

3
.
AIR
CONDITIONING
SYSTEM

Air
conditioningrelay
holder
F27

Compressor
Magnet
F24
clutch

Thermal
protector
F48

Pressure
switch
Q47

Engine
control
module

l
a
p

To
Power
Supply
Routing

IG
FB-22
FB-32
FB-20

IG
SW
FUSE
Na
15
FUSE
Na20FUSENa
21
FUSE
Na
15

M

11
Evaporation
thermo-
FRESH/RECIRC
switch
actuator

F48
(B
I
ue)
(j~)
(Gr
ay)

(M
FIT2-1

123
45
6
C1-
F2~
n
R3
[4151617
1
234

(~D(~D(~D
(~~D
(E)

j
F1W2-1
1
2
1
2
1
2
1
2-
-
-
MMMM
F3T
i
0
9
4
1
3
4
34
34
34

A/Crelay
holder(Black)

Mode
actuator

Ref
.
to
Lighting

Blower
motor
Blower
resistor
motor
relay

O
(B
I
ac
k)

Blower
motor

B87
(B
I
ac
k)
O
(B
I
ac
k)
B50880
(B
I
ue)
B91
1
12
1
2
123
34
345

i
ll
(B
I
ac
k)F45
1
l
(B
I
ac
k)
1
234S
I
6
1
7
1
12345
b789
125
6789(0
34
I1121314t516171819202122
1
9
1
10
1
11
1
12
1
13
1
14
1
15
1
t6
111121314t51617t81920~~

BB4
(L
t
ght
b
I
ue)

12U34
U
56
U
78
U
U
9l0
U
Ilt2
U
1314LJ1516
17
1
18
1
19
1
20
1
21
1
22
1
23
1
24
1
25
1
26
1
27
1
28
1
29
1
30
1
31323
3
34
35
3637
38
39
40
4142
43
44454647
1
48
1
49
~
0
1
51
1
52
1
53
1
54
~
5
1
56
1
57
1
M59
1
60
1
61
~
2
1
63
1
64
1
65
1
66
1
67
1
66
1
69
1
7'
7172
73
74
75
76777B7980
81
1
89
1
83
1
84
8
86878889
90
9192
93
94
996

BUR45-02

9

6-3
[oso2s]
WIRING
DIAGRAM

6
.
Wiring
Diagram

23
.
RADIATOR
FAN
SYSTEM

Diode
(A/C)

Main
fan
motor

oi3~

Subfen
motor

C
~

Flb
(B
leCk)

F43
(Orange)
Fl7
(B
I
ec
K)

(~D(~~(~D
QD

1
2
1
2
[3ql2
4
34
P34
34

A/C
relay
holder(Black)

F44

1234
5678

Engine
control
module

al
I

Air
conditioning
relay
holder

10A
F27

Main
fan
relay-1
F28

Ma
i
nfan
F30
Mr
relay-2

Sub
fan
F29
o
D
relay-2

F45

234
6789
1
1112131415161718192010

884
(L
1
ght
b
I
ue)

12
345678
9l0
lit213141516
17181920212
3242526
78
930
313233343
363738394
4142434445464748
1
49
~
1]
1
51
~
2
15
3
1
54
~
5
56
7
58
59
0
6l
62
63
4
65
66
67
68
9
70
7172
7374
7
76
77
78
79
8
8182
83
84
8
96
87
9
9
192
9394
9
96

BUR14-02

16