Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 801
WI-33
Engine Electrical System
WIRING SYSTEM
1
2
3
4
5
9
10
11
7
8
6
12
WI-42470
B14
C35
A21
A22
A31
A32
B15
C34
B31
B29
B21
C4
B23
D31
A2
A18
A28
A1
A19
B30
D20
A29
A17
A16
A34
A27
D22
D9
D10
D11
A26
A25
D8
D2
D17
D25
A24
A23
A4
D3
A3
A6
D1
D12
C13
C15
C3
C12
I/F
I/F
ECM
DRIVE CIRCUIT
STOP LIGHT &
BRAKE SWITCH
OIL PRESSURE
WARNING LIGHT
ENGINE GROUND
MICRO COMPUTER
ENGINE
COOLANT
TEMP.
GAUGE
TACHOM-
ETER
JOINT
GROUND
CONNECTOR
C
A
N
T
R
A
N
S
C
E
IV
E
R
&
RECEIVER
CAN
COMMUNICATION
POWER SUPPLY
CIRCUIT
MALFUNCTION
INDICATOR LIGHT
COMBINATION METER
OIL
PRESSURE
SWITCH
CRUISE CONTROL
SWITCH
CAN
COMMUNICATION
CRUISE CONTROL SWITCH
NEUTRAL POSITION
SWITCH
DELIVERY (TEST)
MODE CONNECTOR
TEST MODE SUB
CONNECTOR
DATA LINK CONNECTOR
OIL FLOW CONTROL SOLENOID VALVE RH
OIL FLOW CONTROL SOLENOID VALVE LH
ENGINE COOLANT TEMPERATURE SENSOR
MANIFOLD ABSOLUTE PRESSURE SENSOR
ELECTRONIC THROTTLE CONTROL
LEAK DIAGNOSIS CONNECTOR 3
LEAK DIAGNOSIS CONNECTOR 2
LEAK DIAGNOSIS CONNECTOR 1
IGNITION COIL No. 4
IGNITION COIL No. 3
IGNITION COIL No. 1
IGNITION COIL No. 2
MULTI JOINT
CONNECTOR
JOINT
CONNECTOR
JOINT CONNECTOR
ACCELERATOR
PEDAL POSITION
SENSOR
KNOCK SENSOR
TUMBLE GENERATOR VALVE ASSY RH
TUMBLE GENERATOR VALVE ASSY LH
SECONDARY AIR COMBINATION VALVE RH
CRANKSHAFT POSITION SENSOR
SECONDARY AIR COMBINATION VALVE LH
WI-34
Engine Electrical System
WIRING SYSTEM
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
26
33 34
B135
B98
16
27
35
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
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
WI-37568
B136
5
6
7
2
1
3
4
29
B220
2 3 4 5
6 7 8 9
11 12 13 14
17 18 19 20
1
10
15 16
E/G-01
E/G-01
1
4
R122
1 2
3 4
5 6 7 8 9 10
C:
B:
1 2
R58
1 2
3 4 5
6 7 8 9 10 11 12
E/G-13
E/G-11
E/G-04
1 2
3 4
5 6
R82
R81
R15
R57
5
6
R58
B135
B:
B136
C:
C30
C33
B10
B3
R15
R57
1
10
8
1
R68
2
13
15
16
14
B220
10
8
9
6
7
5
7
4
5
6
10
5
11
R122
B97
R82
R57
R68
B97
R1
B98
R2
GY
GR
R
R
RB
YB
LgR
G
YL
R
YL
R
YL
YL
LgR
G
RB
R
B
GY
GR
LgR
G
RB
RB
B
GR
WG
R
YL
YL
LgR
G
GR
B
L
GR
GY
B
C
A
GR
WG
B
B
ECM
(BLACK)
(BLACK)
(DARK GRAY)
PRESSURE
CONTROL
SOLENOID VALVE
FUEL LEVEL SENSOR
FUEL PUMP
FUEL
PUMP
CU
FUEL PUMP
RELAY
FUEL PUMP ASSY
TO POWER SUPPLY CIRCUIT
FB-38
F/B FUSE NO. 12
(IG)
MB-25
M/B FUSE NO. 11
(B)
REF. TO FUEL GAUGE
SYSTEM
[F/G-01]
REF. TO GND
[GND-05]
REF. TO GND
[GND-01]
RELAY BLOCK
WI-35
Engine Electrical System
WIRING SYSTEM
B135
E/G-02
E/G-02
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
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
26
33 34
5
6
7
2
1
3
4
29
C3
C15
C13
C12
C29
C7
B35
B11
B12
B25
B24
16
27
35
B:
C: B136
WI-30389
C: B136
B: B135
ECM
LOr
BR
WL
BR
RL
YB
P
YL
W
Y
Lg
REF
. T
O IMMOBILIZER SYSTEM
[IMB-01]
REF
. T
O RADIA
TOR F
AN SYSTEM
[R/F-01]
REF
. T
O CR
UISE CONTR
OL SYSTEM
[C/C-02]
REF
. T
O AIR CONDITIONING SYSTEM
[A-A/C-01·02]
WI-36
Engine Electrical System
WIRING SYSTEM
E/G-03
E/G-03
B136
B21
5 6 7 8
2
1
9
4
3
10
24
22
23
25
27
26
28
11 12 13
14 15 16
17 18 19 20 21
B21
E2
C:
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
26
33 34
BY
i1
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 36 37 38 39 40
*
1
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
B135
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
BrW
WL
GrR
B15
R
C17
L
C2
8
i97
*
1
*
1
*
1
16
27
35
i10
1 2 3
4 5 6 7
8 9 10 11 12 13 14 15 16
2 3 4 5
1
6 7 8
i97
5
6
7
2
1
3
4
29
WI-42471
i10
BrW
GOr
GrR
BY
BY
GOr
GOr
G
12
GrR
17
WL
B36
i1
37
B136
C:
B135
B:
WL
WL
2
i102
R167
E11
G
BY
BY
BY
19
32
21
22
1
2
LgR
P
26
27
I/F
I/F
i102
B:
ECM
DRIVE CIRCUIT
(BLACK)
POWER SUPPLY
CIRCUIT
CAN TRANSCEIVER &
RECEIVER
TACHOM-
ETER
MICRO COMPUTER
MALFUNCTION
INDICATOR
LIGHT
OIL PRESSURE WARNING LIGHT
JOINT GROUND
CONNECTOR
OIL PRESSURE SWITCH
FB-17
F/B FUSE NO. 7
(B)
COMBINATION METER
FB-36
F/B FUSE NO. 5
(IG)
TO POWER SUPPLY CIRCUIT
(BLACK)
: TERMINAL No. OPTIONAL ARRANGEMENT
ENGINE
COOLANT
TEMP.
GAUGE
REF. TO CAN COMMUNICATION SYSTEM [CAN-02]
REF. TO CAN COMMUNICATION SYSTEM [CAN-01]
REF. TO GND
[GND-06]
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