Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 806

WI-53

Engine Electrical System

WIRING SYSTEM

ECM

E/G(S)-04

E/G(S)-04

B106

B220

B225

WI-33807

B135

B136

B137

B137

1
2

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

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

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

5

6

7

2

1

3

4

29

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

C1

B13

B17

B7

B106

B225

31

32

30

29

B220

B14

D:

2

1

B:

B26

C16

D7

3

4

21

B220

23

24

22

21

B220

11

12

10

9

B220

E/G(S)-06

E/G(S)-06

E/G(S)-14

C35

B:

C:

D:

15A

15A

E/G(S)-01

11

12

10

9W

B

BL

B

F

E

D

WB

Lg

WL

WL

YB

Lg

WL

WR

WL

MB-23

SBF-7

(B)

MB-24

SBF-7

(B)

MB-22

SBF-5

(B)

ST-2

IG SW

(ST)

LW

WB

WB

WL

LR

RL

YB

LR

RL

YB

Lg

YB

GB

WY

WR

WL

WL

WB

BL

WB

(BLACK)

(BLACK)

BATTERY

STARTER MOTOR

ELECTRONIC THROTTLE CONTROL RELAY

STARTER

RELAY

CLUTCH

START

SWITCH

A/F, OXYGEN

SENSOR

RELAY

MAIN

RELAY

FUSE

(RELAY BLOCK)

ST-1

F/B FUSE NO. 21

(ST)

TO POWER SUPPLY CIRCUIT

RELAY BLOCK

WI-54

Engine Electrical System

WIRING SYSTEM

ECM

E/G(S)-05

E/G(S)-05

WI-33808

B136

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

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

5

1
2

1 2

B40

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

16
27
35

5

6

7

2

1

3

4

29

B440

B442

B363

1
2

1 2 3 4

B:

B438

B441

B75

B76

B107

C: B136

B: B135

4

7

5

8

16

C34

1

1

L

B75

B76

B363

B364

B40

B14

C2

14

6

E/G(S)-14

E/G(S)-14

E/G(S)-14

B9

B107

2

1

1

1

1

5

B441

B438

B440

B442

B440

2

2

VR

VR

GY

GY

GY

RY

P

L

RY

GY

I

G

H

R

L

W

W

VR

GY

BG

W

GY

B

VR

BW

P

REF

. T

O CAN

COMMUNICA

TION SYSTEM

[CAN-02]

MULTI JOINT

CONNECTOR

MULTI

JOINT

CONNECTOR

CLUTCH SWITCH

DATA LINK CONNECTOR

TEST MODE

SUB

CONNECTOR

DELIVERY (TEST) MODE

CONNECTOR

(GREEN)

(GREEN)

(GREEN)

(ORANGE)

(BLACK)

(BLACK)

(GRAY)

(BLUE)

MB-27

M/B FUSE NO. 13

(B)

FB-32

F/B FUSE NO. 4

(IG)

TO POWER SUPPLY CIRCUIT

WI-55

Engine Electrical System

WIRING SYSTEM

ECM

3

2

1

6

4 5

E/G(S)-06

E/G(S)-06

B136

T5

WI-33809

T6

B19

B19

T5

B379

B315

B3

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

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

1

2

3

4

B138

3

5

6

7

2

1

3

4

29

16
27
35

B315

1 2 3 4 5 6

B3

1 2 3 4 5

1 2
3 4

*

1

B379

C1

8

C19

C9

B29

B22

2

2

1

4

3

4

3

1

2

6

4

3

5

1

B31

B21

B23

B:

C:

T6

B19

C11

C22

2

1

5

4

C10

C31

*

1

*

1

*

1

B138

C6

C5

C20

B6

B136

C:

B135

B:

E/G(S)-07

2

4

3

1

E/G(S)-04

E/G(S)-04

E/G(S)-08

E/G(S)-14

E/G(S)-11

E/G(S)-08

E/G(S)-08

L

K

O

M

N

D

E

J

RW

W

WR

WR

SB

RB

SB

YL

SB

BG

W

YL

YR

W

BG

W

GB

Or

WL

L

Or

GB

W

YL

RW

W

YB

WB

W

L

WR

B

W

WB

YR

WB

WL

L

RB

W

B

YB

(BLACK)

JOINT

CONNECTOR

(LIGHT GRAY)

(DARK GRAY)

(BLACK)

(DARK GRAY)

MASS AIR FLOW &

INTAKE AIR

TEMPERATURE

SENSOR

ACCELERATOR PEDAL

POSITION SENSOR

FRONT

OXYGEN (A/F)

SENSOR

REAR

OXYGEN

SENSOR

: TERMINAL No. OPTIONAL ARRANGEMENT

WI-56

Engine Electrical System

WIRING SYSTEM

ECM

B137

E2

B21

B21

E14

WI-33810

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

1 2

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

D17

D25

D

8

D16

D24

D2

D31

1

5

2

4

8

E10

1 2

E36

E35

E65

E62

1 2 3

D29

E/G(S)-07

E/G(S)-07

2

1

D30

15

D23

D:

D: B137

1

2

E10

1

E35

E14

3

14

2

13

4

2

3

1

E65

2

3

2

E36

3

1

E62

3

E/G(S)-06

26

E/G(S)-08

E/G(S)-10

E/G(S)-12

E/G(S)-08

BW

B

R

S

P

Q

J

YB

YB

GB

YB

YB

BrY

GW

BrY

YB

BW

WL

GB

B

WL

WL

B

GR

WL

GW

B

WL

GY

B

G

L

SB

W

W

W

GW

GY

GOr

B

W

GR

G

L

GOr

GW

SB

B

W

W

BL

(LIGHT GRAY)

(LIGHT GRAY)

(LIGHT GRAY)

EXHAUST

CAMSHAFT

POSITION

SENSOR RH

INTAKE

CAMSHAFT

POSITION

SENSOR RH

EXHAUST

CAMSHAFT

POSITION

SENSOR LH

(LIGHT GRAY)

(BLACK)

(LIGHT GRAY)

KNOCK

SENSOR

INTAKE

CAMSHAFT

POSITION

SENSOR LH

CRANKSHAFT

POSITION

SENSOR

(LIGHT GRAY)