Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. 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]