Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 800

WI-29

Ground Circuit

WIRING SYSTEM

i15

i6

D5

D15

D102

AD2

D84

D125

D83

i23

D5

D15

1

2

3

5

6

7

8

B:

i39

i24

4

1 2 3

6

5

1

3

4 5 6

2

WI-37566

1 2 3 4 5 6 7 8 9 10

4

2 3 4 5

1

6 7 8

1 2

4 5 6 7 8

3

1 2 3

1

2

3

4 5 6 7 8

1 2
3 4

D3

GND-07

GND-07

*

1

*

1

i99

i99

*

1

i100

*

1

4 3

6

9 8 7

2

10

1
5

1 2

5 6 7 8

2

1

9

4

3

10

24

22 23

25

11 12 13 14 15

16 17

18 19

20 21

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

GND-06

*

1

i99

i100

1 2 3 4 5

D17

1 2
4 5 6 7 8

3

1 2

*

1

1

D5

4

D17

5

D5

10

5

D15

4

D102
B:

B3

D3

5

5

2

D125

1

i15

i6

7

i39

5

i23

1

AD2

*

1

D

8

4

i101

3

D

8

3

i76

3

AD1

i24

2

D15

10

*

1

B

B

B

BB

BB

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

SI

B

B

WH

SI

OH

E

WH

WH

WH

OH

WH

OH

B

B

B

B

B

BY

GB-12

OH

OH

:

:

:

:

(DARK GRAY)

(BLACK)

(BLACK)

BLO

WER F

AN SWITCH

(MANU

AL A/C)

: WITH SI-DRIVE

: TERMINAL No. OPTIONAL ARRANGEMENT

: WITH MIRROR HEATER

: WITHOUT MIRROR HEATER

FR

ONT

A

CCESSOR

Y PO

WER

SUPPL

Y SOCKET

GLO

VE BO

X ILLUMI.

LIGHT

HEADLIGHT BEAM LEVELER SWITCH

REMO

TE CONTR

OL

MIRR

OR SWITCH

PASSENGER'S DOOR

LOCK SWITCH

PO

WER

WINDO

W

MAIN SWITCH

OUTER MIRR

OR ASSY RH

OUTER MIRR

OR

ASSY RH

FR

ONT PO

WER

WINDO

W MO

TOR LH

OUTER MIRR

OR

ASSY LH

FR

ONT PO

WER

WINDO

W

SUB-SWITCH

OUTER MIRR

OR ASSY LH

JOINT

GROUND

CONNECTOR

WI-30

Ground Circuit

WIRING SYSTEM

2. ENGINE GROUND

•

Without SI-DRIVE

ECM

B137

B21

B134

E41

E40

1

3

4 5 6

2

E41

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
3 4

E14

B21

E2

A4

40

A3

WI-33871

E10

E22

E57

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

E14

4

1

E10

E40

E88

2

2

2

2

D:

E22

1 2

B137

D3

A6

36

D1

34

35

E33

E31

E34

E32

1
2
3

GND-0

8

GND-0

8

1

2

1

3

4

6

A:

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

E33

E88

D:

B134

A:

1 2

E31

E32

E34

BR

B

B

B

B

B

LW

BW

BW

BR

BR

GE

L

G

L

L

G

WR

W

B

BR

B

BW

BW

B

BL

BL

BY

LW

LW

LW

LW

BR

BR

BR

BW

BY

BY

LEAK DIAGNOSIS

CONNECTOR 3

IGNITION

COIL No. 4

IGNITION

COIL No. 2

IGNITION

COIL No. 3

IGNITION

COIL No. 1

(DARK GRAY)

(BLACK)

(LIGHT GRAY)

KNOCK

SENSOR

ELECTRONIC

THROTTLE

CONTROL

FRONT OXYGEN

(A/F) SENSOR

CRANKSHAFT

POSITION

SENSOR

(GRAY)

(GRAY)

(GRAY)

(GRAY)

(LIGHT GRAY)

(DARK GRAY)

(BLACK)

(BLACK)

SECONDARY

AIR

COMBINATION

VALVE LH

SECONDARY

AIR

COMBINATION

VALVE RH

REF

. T

O ENGINE ELECTRICAL SYSTEM

[E/G-06]

REF

. T

O ENGINE ELECTRICAL SYSTEM

[E/G-07]

REF

. T

O ENGINE ELECTRICAL SYSTEM

[E/G-0

8]

E57

1 2 3 4 5 6

(BLACK)

WI-31

Ground Circuit

WIRING SYSTEM

•

With SI-DRIVE

B137

B134

E40

E41

B21

E14

WI-37567

E10

E57

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

E14

4

1

E10

E41

E87

1

3

4 5 6

2

E40

D:

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

2

2

2

B21

E2

A4

40

A3

E33

E31

E34

E32

1
2
3

GND-09

GND-09

1

2

4

6

A:

1

1 2

E57

1 2 3 4 5 6

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

2

E32

2

E87

B137

D3

A6

36

D1

34

35

E31

E33

E34

D:

B134

A:

BY

BR

BY

BW

BW

BY

BL

BL

BY

BW

BR

BR

B

BW

BW

W

W

BY

BY

YG

BY

BW

BW

GE

W

WR

W

G

L

BR

BW

BY

BY

B

B

BW

W

W

ECM

LEAK

DIAGNOSIS

CONNECTOR 2

IGNITION

COIL

No. 4

IGNITION

COIL

No. 3

IGNITION

COIL

No. 2

IGNITION

COIL

No. 1

(BLACK)

(BLACK)

(BLACK)

(DARK GRAY)

(BLACK)

(LIGHT GRAY)

KNOCK

SENSOR

ELECTRONIC

THROTTLE

CONTROL

CRANKSHAFT

POSITION

SENSOR

(GRAY)

(GRAY)

(GRAY)

(GRAY)

SECONDARY

AIR COMBINATION

VALVE RH

SECONDARY

AIR COMBINATION

VALVE LH

REF

. T

O ENGINE ELECTRICAL SYSTEM

[E/G(S)-07]

(LIGHT GRAY)

REF

. T

O ENGINE ELECTRICAL SYSTEM

[E/G(S)-0

8]

WI-32

Engine Electrical System

WIRING SYSTEM

5. Engine Electrical System

A: WIRING DIAGRAM

1. WITHOUT SI-DRIVE

ECM

WI-33790

6

7

8

11

9

10

1

2

3

4

5

C16

B26

B20

B8

C30

C2

B27

B10

D28

B7

B17

B13

C1

A33
D6

D7

A13
D16

C10
C22

C31

C11

C5

C6

C18

C19

B6

C20

C33

D30
B3

B4
C21

B22

A10
A11
A12

B12

C29

C7

B35

C17

C28

D24

B25

B24

B11

B9

C9

D15

12

D27

ELCM

ST

ON

ACC

OFF

SBF-6

SBF-8

SBF-5

SBF-7

M

M

FUEL PUMP ASSY

(FUEL PUMP)

A/F

, O

XYGEN

SENSOR RELA

Y

PURGE CONTROL SOLENOID VALVE 2

SECONDARY

AIR

COMBINATION VALVE RELAY 1

SECONDARY AIR COMBINATION VALVE RELAY 2

SECONDARY

AIR FUSE

SECONDARY

AIR PUMP

SECONDARY AIR PUMP RELAY

PRESSURE CONTROL SOLENOID VALVE

CAMSHAFT POSITION SENSOR RH

FUEL INJECTOR No. 4

FUEL INJECTOR No. 3

FUEL INJECTOR No. 2

F/B FUSE No. 21

F/B FUSE No. 12

F/B FUSE

No. 5

F/B FUSE No. 4

F/B FUSE No. 7

M/B FUSE No. 13

CLUTCH SWITCH

MAIN FAN RELAY 1

BODY INTEGRATED UNIT (IMMOBILIZER)

CAN COMMUNICATION

A/C RELAY

PRESSURE SWITCH

A/C CONTROL PANEL

JOINT CONNECTOR

SUB FAN RELAY

FUEL INJECTOR No. 1

WASTEGATE CONTROL SOLENOID VALVE
PURGE CONTROL SOLENOID VALVE 1

POWER STEERING

OIL PRESSURE SWITCH

CAMSHAFT POSITION SENSOR LH

FRONT OXYGEN (A/F) SENSOR

REAR OXYGEN SENSOR

MASS AIR FLOW &

INTAKE AIR TEMPERATURE SENSOR

FUEL PUMP CU

FUSE

(RELAY BLOCK)

FUEL PUMP RELAY

ELECTRONIC

THROTTLE

CONTROL

RELAY

MAIN RELAY

STARTER

MOTOR

IGNITION

SWITCH

CLUTCH

START

SWITCH

STARTER

RELAY

IG 2 RELAY

M/B FUSE No. 11

BATTERY

MAIN

SBF

MULTI

JOINT

CONNEC-

TOR