Subaru Legacy IV (2008 year). Service manual — part 1198
WI-44
Engine Electrical System
WIRING SYSTEM
WI-20969
E/G(H4)-09
E/G(H4)-09
REF. TO CRUISE CONTROL
SYSTEM [C/C(N4)-03]
B137
D:
B136
C:
B134
A:
B21
E2
BR
D1
BR
34
BL
BL
C6
BY
BW
D2
BW
35
BY
BL
36
BW
LR
37
BW
LR
D3
B
D6
R
D7
B
47
RB
GY
D19
GY
33
BrG
RY
D18
RY
32
GB
LB
49
RG
ECM
SB
SB
BL
BL
BL
B122
JOINT
CONNECTOR
B225
FUSE
(RELAY BLOCK)
BY
BW
BY
BW
GE
B
BL
BR
BW
E/G(H4)-04
H
E/G(H4)-03
F
E/G(H4)-04
G
E/G(H4)-06
Q
E/G(H4)-05
P
3
E12
2
RG
1
GB
4
BrG
RB
IGNITION COIL & IGNITOR ASSY
15A
L
1
LB
2
E/G(H4)-03
C
R
52
BL
(DARK GRAY)
E12
1 2 3 4
BL
A5
BL
C15
B
D26
B122
3 4
5 6
1 2
7 8
A: B134
8
5
6
10 11 12 13 14 15
7
2
1
3
4
16
30
19 20
22
28 29
9
17
18
25
21
23 24
32
31
26 27
33 34
MT
1
*
BL
1
*
1
*
1
*
1
*
1
*
1
*
E/G(H4)-08
V
E/G(H4)-05
N
E/G(H4)-05
O
C: B136
16
10 11 12 13 14 15
25
24
30
9
8
7
17 18 19 20
28
21 22 23
29
32
31
1
2
3
4
5
6
27
26
33 34 35
D: B137
8
5
6
10 11 12 13 14 15
7
2
1
3
4
16
30
19 20
22
28 29
9
17
18
25
21
23
24
31
26 27
B225
13
14
15 16
17
27
24
25
26
20
21
22
23
29
30
31
28
32
35
33
34
37
38
39
36
40
8
9
10
11 12
1
2
5
3
4
7
6
19
18
RELAY BLOCK
(BLACK)
MT
: TERMINAL No.
OPTIONAL
ARRANGEMENT
1
*
(BLACK)
B21
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22
23 24 25 26 27 28 29 30 31 32 33
34
35
42
43
36
37
38
39
48
49
50
51
52
53
54
40
41
44
45
46
47
WI-45
Engine Electrical System
WIRING SYSTEM
WI-15773
Br
B32
B136
R1
B97
R213
R15
R67
R46
C:
B135
B:
ECM
LgB
C17
R
C28
Br
BW
WL
LgB
R
YL
Br
YB
LY
LgB
R
Br
YB
LY
LgB
R
Br
YG
LY
LgB
R
YL
YL
YL
17
6
13
14
15
7
E/G(H4)-10
E/G
(H4
)-10
6
7
4
1
5
6
E/G(H4)-08
U
E/G(H4)-03
E
E/G(H4)-06
R
YG
1
Br
2
LY
3
R47
FUEL TANK
PRESSURE
SENSOR
YL
1
LgB
2
R144
DRAIN
VALVE
YL
1
R
2
R68
PRESSURE
CONTROL
SOLENOID
VALVE
R67
1
3 4 5 6
2
R213
1 2
3
4 5 6 7 8
B97
1 2 3 4
5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
R47
1 2 3
(BLACK)
R144
1 2
(GRAY)
R68
1 2
(DARK GRAY)
B136
C:
16
10 11 12 13 14 15
25
24
30
9
8
7
17 18 19 20
28
21 22 23
29
32
31
1
2
3
4
5
6
27
26
33 34 35
B: B135
5
6
7
2
1
3
4
29
10 11 12 13 14 15
25
24
16
30
9
8
17 18 19
20
28
21 22 23
32
31
26 27
33
34 35
WI-46
Engine Electrical System
WIRING SYSTEM
2. 2.5 L TURBO MODEL
WI-20970
8
9
10
13
11
12
14
M
M
1
2
3
7
4
6
5
C20
C31
C32
C30
C19
B19
B5
C8
B33
A33
ECM
C1
C21
B17
C23
A7
D27
D29
B2
BATTERY
M/B FUSE No.
11
SBF-7
SBF
SBF-5
SBF-8
SBF-6
STARTER
RELAY
IG 2
RELAY
IGNITION
SWITCH
INHIBITOR
RELAY
CLUTCH
SWITCH
OFF
B
ACC
IG1
IG2
ACC ON ST
ST
STARTER MOTOR
MAIN RELA
Y
ELECTRONIC
THROTTLE
CONTROL
RELAY
FUEL PUMP
RELAY
FUEL TEMPER-
ATURE SENSOR
FUEL PUMP
CONTROL UNIT
D11
A21
B35
B26
B18
B34
MASS AIR FLOW &
INTAKE AIR TEMPERATURE SENSOR
REAR OXYGEN SENSOR
FRONT OXYGEN (A/F) SENSOR
CAMSHAFT POSITION SENSOR LH
C2
C3
B8
B9
C4
B4
POWER STEERING
OIL PRESSURE SWITCH
C12
PURGE CONTROL SOLENOID VALVE 1
WASTEGATE CONTROL SOLENOID VALVE
A22
C17
C28
B32
B22
FUEL INJECTOR No. 1
D8
D9
D10
RADIATOR FAN CONTROL UNIT
JOINT CONNECTOR
AUTO A/C CONTROL MODULE
PRESSURE SWITCH
A/C RELAY
BODY INTEGRATED UNIT (CAN COMMUNICATION)
BODY INTEGRATED UNIT
(IMMOBILIZER)
MAIN FAN RELAY 1
C29
C24
C33
C9
C27
C35
A11
CLUTCH SWITCH
C26
C34
C18
C25
B1
M/B FUSE No.
13
F/B FUSE No.
7
F/B FUSE No.
4
F/B FUSE No.
5
F/B FUSE No.
12
F/B FUSE No.
21
FUEL INJECTOR No. 2
FUEL INJECTOR No. 3
FUEL INJECTOR No. 4
CAMSHAFT POSITION SENSOR RH
DRAIN VALVE
PRESSURE CONTROL SOLENOID VALVE
FUEL TANK PRESSURE SENSOR
AT
AT
MT
MT
SECONDARY AIR PUMP RELAY
SECONDARY AIR PUMP
SECOND
AR
Y AIR FUSE
SECOND
AR
Y AIR COMBINA
TION
V
A
L
VE RELA
Y 1
SECOND
AR
Y AIR
COMBINA
TION
V
A
L
VE RELA
Y 2
AT
MT
C7
PURGE CONTROL SOLENOID VALVE 2
FUEL PUMP ASSY
(FUEL PUMP)
WI-47
Engine Electrical System
WIRING SYSTEM
WI-20971
SECONDARY AIR COMBINATION VALVE LH
CRANKSHAFT POSITION SENSOR
SECONDARY AIR COMBINATION VALVE RH
TUMBLE GENERATOR VALVE ASSY LH
TUMBLE GENERATOR VALVE ASSY RH
KNOCK SENSOR
1
2
3
4
5
11
12
14
13
6
C16
D18
D19
D20
D21
C11
C22
B27
B31
B29
B21
C6
B23
ACCELERATOR
PEDAL
POSITION SENSOR
JOINT
CONNECTOR
JOINT
CONNECTOR
TCM
IGNITION COIL
No.
2
IGNITION COIL
No.
1
IGNITION COIL
No.
3
IGNITION COIL
No.
4
LEAK DIA
GNOSIS
CONNECT
OR
A24
ECM
D5
A18
A28
D4
A19
B30
A6
A29
D15
D14
D17
D16
A34
A27
ELECTRONIC THROTTLE CONTROL
A16
A26
D23
D22
A25
A15
MANIFOLD ABSOLUTE PRESSURE SENSOR
ENGINE COOLANT TEMPERATURE SENSOR
A13
A14
D13
D12
D1
D7
D3
A5
D2
OIL FLOW CONTROL SOLENOID VALVE LH
OIL FLOW CONTROL SOLENOID VALVE RH
DATA LINK CONNECTOR
DELIVERY (TEST)
MODE CONNECTOR
NEUTRAL POSITION
SWITCH
D6
D26
A30
C15
AT
MT
CRUISE CONTROL SWITCH
MT
7
ABS, VDC
(CAN
COMMUNICATION)
B12
B20
B28
B24
CRUISE CONTROL
SWITCH
STOP LIGHT &
BRAKE SWITCH
9
10
8
OIL
PRESSURE
SWITCH
DRIVE
CIRCUIT
LCD
FULL
DO
T
COMBINATION METER
MALFUNCTION
INDICATOR LIGHT
OIL PRESSURE
WARNING LIGHT
POWER SUPPLY
CIRCUIT
I/F
I/F
BODY
INTEGRATED
UNIT
(CAN
COMMUNICATION)
SI-DRIVE
SELECTOR
(CONSOLE)
CAN
TRANSCEIVER
& RECEIVER
TACHO-
METER
ENGINE
COOLANT
TEMPERATURE
GAUGE
ENGINE GROUND
SHIFT UP
INDICATOR
S# PROHIBITION
INDICATOR
ONE STEP
DIMMER
CIRCUIT
MT
I/F
MICR
O COMPUTER
SI-DRIVE
SWITCH
(STEERING/S#)
I/F
DRIVE CIRCUIT
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