Subaru Legacy (2005 year). Service manual - part 1070

WI-73

WIRING SYSTEM

Engine Electrical System

WI-74

WIRING SYSTEM

Engine Electrical System

3. LHD 3.0 L MODEL

WI-06901

6

7

8

9

1

2

3

4

5

B32

D8

D14

D9

B19

D28

D10

A22

ECM

D6
B35
D16
B5

A14

B6

B8

B9

C31

C32

B7

A1

A34

A27

A33

A26

A2

C23

A25

A3
B3
D25

D24

B2

D31

B27

C13

C6

C5

C4

C3

A31
B30
D17
C30
B33

D18

C9

C8

C7
C11

D19
D27

D26

C2

C1

C10

B23

A10
A11
A9
A8

AT

MT

10

MASS AIR FLOW SENSOR

CAMSHAFT POSITION SENSOR LH

PURGE CONTROL SOLENOID VALVE

FUEL INJECTOR NO. 1

FUEL INJECTOR NO. 2

FUEL INJECTOR NO. 3

FUEL INJECTOR NO. 4

FUEL INJECTOR NO. 5

FUEL INJECTOR NO. 6

CAMSHAFT POSITION SENSOR RH

FRONT OXYGEN (A/F) SENSOR RH

REAR OXYGEN SENSOR RH

REAR OXYGEN SENSOR LH

FRONT OXYGEN (A/F) SENSOR LH

EGR VALVE

PWM CONTROLLER

AUTO A/C CONTROL MODULE

A/C LOCK SENSOR

A/C RELAY

BODY INTEGRATED MODULE (CAN COMMUNICATION)

BODY INTEGRATED MODULE (IMMOBILIZER)

CRUISE CONTROL SWITCH

A/C PRESSURE SWITCH

RADIATOR FAN RELAY

STOP LIGHT & BRAKE SWITCH (CRUISE CONTROL)

BATTERY

M/B FUSE NO. 11

SBF-7

SBF

SBF- 5

SBF-8

SBF-6

STARTER RELAY

IG 2 
RELAY

STARTER MOTOR

MAIN 
RELAY 1

ELECTRONIC
THROTTLE
CONTROL 
RELAY

FUEL PUMP 
RELAY

FUEL PUMP

FUEL PUMP 

CONTROL MODULE

MAIN 
RELAY 2

RELAY 
HOLDER

POWER STEERING 
OIL PRESSURE SWITCH

MAIN FUSE BOX (M/B)

GENERATOR

TCM

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

IGNITION SWITCH

OFF

+B

ACC

IG1

IG2

ACC ON ST

ST

NEUTRAL 
POSITION 
SWITCH 
(MT)

WI-75

WIRING SYSTEM

Engine Electrical System

POWER CIRCUIT

COMBINATION METER

MALFUNCTION 
INDICATOR LIGHT

OIL PRESSURE 
WARNING LIGHT

I/F

I/F

I/F

ABS CONTROL MODULE

VDC CONTROL MODULE

BODY INTEGRATED 
MODULE (CAN 
COMMUNICATION)

OIL 
PRESSURE 
SWITCH

MICRO COMPUTER

CAN TRANSCEIVER & 

RECEIVER

GROUND 
JOINT 
CONNECTOR

VDC

ABS

TACHO-

METER

SPEED-

OMETER

ENGINE 

COOLANT

 TEMPERATURE 

GAUGE

WI-06902

B1
B4

B14
B13

D20
D29
B18
B17
B16
B15

A17
A23

C17

D22

C28
C15
C34

1

2

3

4

5

6

7

8

9

B10
B22

ECM

C18
C29

D4
D5

C16

C22

C14

C35
A19
A29

A18
A28
B25
B24

B31
C25

C33

C24

B29

D7

A21
A20

B12

A4
A5
A6
A7

D2

D1

C27

B21

D3

MT

10

CRANKSHAFT POSITION SENSOR

MANIFOLD ABSOLUTE PRESSURE SENSOR

ENGINE COOLANT TEMPERATURE SENSOR

VVL DIAGNOSIS OIL PRESSURE SWITCH RH

KNOCK SENSOR 2

OIL SWITCHING SOLENOID VALVE RH

OIL TEMPERATURE SWITCH

VVL DIAGNOSIS OIL PRESSURE SWITCH LH

KNOCK SENSOR 1

OIL SWITCHING SOLENOID VALVE LH

OIL FLOW CONTROL SOLENOID VALVE RH

OIL FLOW CONTROL SOLENOID VALVE LH

: WITHOUT VDC

: WITH VDC

VDC

ABS

IGNITION COIL NO. 1

IGNITION COIL NO. 2

IGNITION COIL NO. 3

IGNITION COIL NO. 4

IGNITION COIL NO. 5

IGNITION COIL NO. 6

ACCELERATOR 

PEDAL POSITION 

SENSOR

JOINT CONNECTOR A

ENGINE GROUND

ENGINE GROUND

D15

JOINT CONNECTOR B

TEST MODE 
CONNECTOR

TEST MODE 
SUB
CONNECTOR

ELECTRONIC THROTTLE CONTROL

CHECK CONNECTOR

DATA LINK CONNECTOR

WI-76

WIRING SYSTEM

Engine Electrical System

E/G(LH6)-01

E/G(LH6)-01

WR

PW

YB

LOr

W

LR

BR

WL

YL

W

Y

BrR

GR

4

3

B

RB

2

WG

1

WG

BR

R1

B97

RB

RB

16

Lg

Lg

6

LgR

LgR

15

GR

R58

GY

5

B

B

R58

1 2
3 4
5 6

B362

1 2

7 8

3
4

5
6

B30

D17

C30

B33

B23

LgR

D28

A31

D27

D19

C11

C7

C9

C8

C10

Lg

B27

BR

A22

RB

GY

10

Lg

8

LgR

B

9

7

GR

6

GR

6

5

A:

B:

C:

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

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

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

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

R122

1 2

3 4

5 6 7 8 9 10

GR

D14

B97

1 2 3

4 5 6 7

8 9 10 11 12 13 14 15 16

WI-06903

B362

TO POWER SUPPLY CIRCUIT

FUEL 
PUMP 
RELAY

MB-25

M/B FUSE NO. 11

(B)

FB-38

F/B FUSE NO. 12

(IG)

ALT-1 

GENERATOR

FUEL PUMP

FUEL PUMP CONTROL MODULE

REF. TO RADIATOR FAN 

SYSTEM [R/F(H6)-01]

REF. TO AIR CONDITIONING 

SYSTEM [A-A/C(L)-01•02]

REF. TO IMMOBILIZER 

SYSTEM [IMB(L)-01]

REF. TO CRUISE CONTROL

SYSTEM [C/C6(L)-01]

B137

D:

B136

C:

B135

B:

B134

A:

ECM

R122

REF. TO GROUND

CIRCUIT 

[GND(L)-03]

REF. TO GROUND

CIRCUIT 

[GND(L)-04]

(BLACK)

: RY
: GY

MT
AT

:

1

*

1

*

HR

HR

HR

HR