Subaru Legacy (2005 year). Manual - part 1040

LAN(diag)-39

LAN SYSTEM (DIAGNOSTICS)

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

Step

Check

Yes

No

1

CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 12).

Is the fuse blown out?

Replace the fuse 
(No. 12). If the 
replaced fuse has 
blown out easily, 
repair the short cir-
cuit of harness 
between fuse (No. 
12) and body inte-
grated module.

Go to step 2.

2

CONTINUITY CHECK OF WIRING HAR-
NESS.
1) Disconnect the connector from body inte-
grated module.
2) Turn the ignition switch to ON.
3) Measure the voltage between body inte-
grated module connector and chassis ground.

Connector & terminal

(i84) No. 1 (+) — Chassis ground (

−

):

Is the voltage more than 10 V? Go to step 3.

Repair the har-
ness for open or 
shorted circuit 
between body inte-
grated module and 
fuse.

3

CHECK POOR CONTACT IN CONNECTOR. Is there poor contact in body 

integrated module connector?

Repair the poor 
contact connector.

Go to step 4.

4

CHECK BODY INTEGRATED MODULE HAR-
NESS.
1) Connect all the connectors.
2) Perform the clear memory mode.
3) Read DTC.

Is the same DTC displayed on 
Subaru Select Monitor?

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

Temporary poor 
contact occurs.

LAN(diag)-40

LAN SYSTEM (DIAGNOSTICS)

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

G: DTC B0104 ACC POWER FAILURE

DTC DETECTING CONDITION:
ACC power supply circuit is open or shorted.
TROUBLE SYMPTOM:
Rear wiper may not operate at ACC position.
WIRING DIAGRAM:

LAN00172

A1

A24

1

8

B72

1

B

2

4

ACC

ACC

OFF

IG

ON

B52

3 4

1 2

8 9 10 11

12 13 14 15 16 17 18 19 20 21 22 23 24

5

6 7

B280

B:

B281

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

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

i84

A:

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

1 2 3 4

5 6 7 8 9

10 11 12

19 20

13 14 15 16 17 18

i5

B52

i5

E

MAIN SBF

FB-28 No.31

i84

B280

B:

A:

B281

C:

BATTERY

BODY INTEGRATED 

MODULE

A

CC PO

WER SUPPL

Y

IG PO

WER SUPPL

Y

IGNITION SWITCH

A21

C9

B22

C8

E

E

FB-37 No.12

1

3

4 5 6

2

B72

FUSE & RELAY BOX

LAN(diag)-41

LAN SYSTEM (DIAGNOSTICS)

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

Step

Check

Yes

No

1

CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 31).

Is the fuse blown out?

Replace the fuse 
(No. 31). If the 
replaced fuse has 
blown out easily, 
repair the short cir-
cuit of harness 
between fuse (No. 
31) and body inte-
grated module.

Go to step 2.

2

CONTINUITY CHECK OF WIRING HAR-
NESS.
1) Disconnect the connector from body inte-
grated module.
2) Turn the ignition switch to ACC or ON.
3) Measure the voltage between body inte-
grated module connector and chassis ground.

Connector & terminal

(i84) No. 24 (+) — Chassis ground (

−

):

Is the voltage more than 10 V? Go to step 3.

Repair the har-
ness for open or 
shorted circuit 
between body inte-
grated module and 
fuse.

3

CHECK POOR CONTACT IN CONNECTOR. Is there poor contact in body 

integrated module connector?

Repair the poor 
contact connector.

Go to step 4.

4

CHECK BODY INTEGRATED MODULE HAR-
NESS.
1) Connect all the connectors.
2) Perform the clear memory mode.
3) Read DTC.

Is DTC displayed on Subaru 
Select Monitor?

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

Temporary poor 
contact occurs.

LAN(diag)-42

LAN SYSTEM (DIAGNOSTICS)

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

H: DTC B0106 SHIFT LOCK CIRCUIT FAILURE

DTC DETECTING CONDITION:
Shift lock circuit is ground shorted.
TROUBLE SYMPTOM:
Key interlock does not unlock or lock.
WIRING DIAGRAM:

B6

FB-28

F/B FUSE No.31

(ACC)

FB-37

F/B FUSE No.12

(IG)

MB-28

M/B FUSE No.34

(B)

FB-3

F/B FUSE No.8

(B)

E

9

5

3

4

A24

C23

C1

A1

i84

A:

B280

B:

B281

C:

B159

1 2

3 4

5 6 7 8 9 10

B116

1 2

3 4

9

5 6

7

8

B159

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

C:

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:

B116

3 4

1 2

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

A:

i84

LAN00173

1 2

B65

WC

B64

OC :

:

REF.TO POWER SUPPLY ROUTING

JOINT FUSE BOX

BODY INTEGRATED MODULE

SHIFT LOCK
SOLENOID

: WITH CRUISE CONTROL

: WITHOUT CRUISE CONTROL

WC

OC

B65

WC

B64

OC :

:

STOP LIGHT
SWITCH

23

WC

OC

12

OC

WC