Subaru Legacy (2005 year). Manual - part 1041

LAN(diag)-43

LAN SYSTEM (DIAGNOSTICS)

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

Step

Check

Yes

No

1

CHECK HARNESS.
1) Disconnect the body integrated module 
connector.
2) Measure the resistance between body inte-
grated module connector and chassis ground.

Connector & terminal

(B280) No. 6 — Chassis ground:

Is the resistance 10 — 30 

Ω?

Go to step 5.

Go to step 2.

2

CHECK HARNESS.
1) Disconnect the body integrated module 
connector.
2) Disconnect the shift lock solenoid connec-
tor.
3) Measure the resistance between body inte-
grated module connector and shift lock sole-
noid connector.

Connector & terminal

(B280) No. 6 — (B116) No. 3:

Is the resistance less than 10 
Ω?

Go to step 3.

Repair or replace 
the open or short 
circuit of harness.

3

CHECK SHIFT LOCK SOLENOID.
1) Disconnect the shift lock solenoid connec-
tor.
2) Measure the internal resistance of shift lock 
solenoid.

Connector & terminal

(B116) No. 3 — No. 4:

Is the resistance 10 — 30 

Ω?

Go to step 4.

Replace the shift 
lock solenoid.

4

CHECK GROUND CIRCUIT.
1) Disconnect the shift lock solenoid connec-
tor.
2) Measure the resistance between shift lock 
solenoid connector and chassis ground.

Connector & terminal

(B116) No. 4 — Chassis ground:

Is the resistance less than 10 
Ω?

Temporary poor 
contact occurs. 
Check the connec-
tion of each termi-
nals, and then 
repair them if nec-
essary.

Replace the body 
integrated mod-
ule. <Ref. to SL-
44, Body Inte-
grated Module.>

5

CHECK HARNESS.
1) Disconnect both the body integrated mod-
ule connector and shift lock solenoid connector 
(B116).
2) Measure the resistance between body inte-
grated module connector and chassis ground.

Connector & terminal

(B280) No. 6 — Chassis ground:

Is the resistance more than 1 
M

Ω?

Replace the body 
integrated mod-
ule. <Ref. to SL-
44, Body Inte-
grated Module.>

Repair or replace 
the short circuit of 
harness.

LAN(diag)-44

LAN SYSTEM (DIAGNOSTICS)

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

I:

DTC B0107 R FOG LAMP CIRCUIT FAILURE

DTC DETECTING CONDITION:
Rear fog input/output circuits are ground shorted.
TROUBLE SYMPTOM:
• Rear fog light does not come on or go off.
• Indicator in the combination meter may not go off.
WIRING DIAGRAM:

LAN00158

FB-2

F/B FUSE No.1

(B)

REF.TO POWER SUPPLY ROUTING

FB-14

F/B FUSE No.16

(B)

26

28

25

27

B13

C4

ON

OFF

E

13

16

B225

REAR FOG
LIGHT RELAY

REAR FOG LIGHT

B71

REAR FOG
LIGHT SWITCH

9

10

1

2

3

4

5

6

7

8

11 12

14

15 16

13

18

19 20

17

22

23 24

21

38

39 40

37

34

35 36

33

30

31 32

29

26

27 28

25

B225

2

3 4 5

6

7

1

8

9

10

11 12 13 14 15

16

17

B71

B280

B281

BODY 

INTEGRATED

 MODULE

B:

C:

5 6 7

8

2

1

9

4

3

10

24

22 23

25

11 12 13 14 15

26

27 28

16 17 18 19

20 21

B281

5

4

6 7

8

2

1

9

3

10

22

23

11 12 13 14 15

24 25

26 27

16 17 18

28 29

19 20

21

30

B280

B:

C:

LAN(diag)-45

LAN SYSTEM (DIAGNOSTICS)

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

Step

Check

Yes

No

1

CHECK HARNESS.
1) Disconnect the body integrated module 
connector.
2) Measure the voltage between body inte-
grated module connector and chassis ground.

Connector & terminal

(B280) No. 13 (+) — Chassis ground (

−

):

Is the voltage 10 — 13 V?

Temporary poor 
contact.

Go to step 2.

2

CHECK HARNESS.
1) Disconnect the body integrated module 
connector.
2) Disconnect the rear fog light relay.
3) Measure the resistance between body inte-
grated module connector and rear fog light 
relay connector.

Connector & terminal

(B280) No. 13 — (B225) No. 27:

Is the resistance less than 1 
Ω?

Go to step 3.

Repair the open or 
short circuit of har-
ness.

3

CHECK HARNESS.
1) Disconnect the body integrated module 
connector.
2) Disconnect the rear fog light relay.
3) Measure the resistance between body inte-
grated module connector and chassis ground.

Connector & terminal

(B280) No. 13 — Chassis ground:

Is the resistance more than 1 
M

Ω?

Replace the body 
integrated mod-
ule. <Ref. to SL-
44, Body Inte-
grated Module.>

Repair or replace 
the short circuit of 
harness.

LAN(diag)-46

LAN SYSTEM (DIAGNOSTICS)

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

J: DTC B0201 CAN-HS COUNTER ABNORMAL

DTC DETECTING CONDITION:
High speed CAN communication of body integrated module which monitor the error data and non-received
data are faulty.
TROUBLE SYMPTOM:
• “Er HC” is displayed in odo/trip meter.
• Malfunction indicator light illuminates.
WIRING DIAGRAM:

LAN00174

VDCCM & H/U

B310

B301

4 5 6 7 8 9

16 17 18 19 20

2 3

1

21 22 23 24 25 26

10 11

13

14

12

15

B20

B30

TWISTED WIRE

BODY INTEGRATED

MODULE

B280

B:

A12

A3

TCM

B54

A:

11

26

B301

ABSCM & H/U

13

29

B231

2

1

3

STEERING ANGLE
SENSOR

ABS

ABS

VDC

VDC

B231

1 2 3 4

B54

A:

1 2

7

8

9

5 6

3 4

10 11 12
19 20 21

13

14 15

16

17

18

22

23

24

B137

D:

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

B310

1 2 3 4

11 12

14 15 16 17 18 19 20 21 22 23 24 25

10

26

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

13

7

8

6

5

9

B280

B:

5

4

6 7

8

2

1

9

3

10

22

23

11 12 13 14 15

24 25

26 27

16 17 18

28 29

19 20

21

30

ECM

B137

D:

C14

C13

A3

A4

D26

D18

5AT

4AT

E

5AT

B54

1 2

7

8 9

5

6

3

4

10 11 12

19 20 21

13 14 15 16

17 18

22 23 24

4AT A:

B136

C:

*

1

*

2

B136

5

6

7 8

2

1

9

4

3

10

24

22 23

25

11 12 13 14 15

26 27

28

16

17 18 19 20 21

33 34

29

32

30

31

35

C:

1

*

: 2.0 L SOHC RHD MODEL;
  2.5 L (KA) RHD MODEL;
  2.0 L LHD MODEL;
  2.5 L (KS) LHD MODEL

2

*

: EXCEPT FOR 2.0 L SOHC 
  RHD AND 2.5 L (KA) RHD
  MODEL;
  2.5 L (EC, K4) LHD MODEL;
  3.0 L LHD MODEL