Subaru Legacy IV (2008 year). Manual - part 563

EN(H6DO)(diag)-225

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

ENGINE (DIAGNOSTICS)

Step

Check

Yes

No

1

CHECK CONDITION OF CRANKSHAFT PO-
SITION SENSOR.

Is the crankshaft position sen-
sor installation bolt tightened 
securely?

Go to step 2.

Tighten the crank-
shaft position sen-
sor installation bolt 
securely.

2

CHECK CRANKSHAFT POSITION SENSOR.
1) Turn the ignition switch to OFF.
2) Remove the crankshaft position sensor. 
3) Measure the resistance between connector 
terminals of crankshaft position sensor.

Terminals

No. 1 — No. 2:

Is the resistance between 1 and 
4 k

:?

Go to step 3.

Replace the crank-
shaft position sen-
sor. <Ref. to 
FU(H6DO)-21, 
Crankshaft Posi-
tion Sensor.>

3

CHECK HARNESS BETWEEN ECM AND 
CRANK SHAFT POSITION SENSOR.
1) Disconnect the connectors from ECM.
2) Measure the resistance of harness between 
ECM and crankshaft position sensor connector.

Connector & terminal

(B134) No. 13 — (E10) No. 1:
(B134) No. 14 — (E10) No. 2:

Is the resistance less than 1 

:? Repair the poor 

contact of ECM 
and crankshaft 
position sensor 
connector.

Repair the harness 
and connector.

NOTE:
In this case, repair
the following item:
• Open circuit in
harness between
ECM and crank-
shaft position sen-
sor connector
• Poor contact of
coupling connector

EN(H6DO)(diag)-226

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

ENGINE (DIAGNOSTICS)

BY:DTC P0336 CRANKSHAFT POSITION SENSOR “A” CIRCUIT RANGE/

PERFORMANCE

DTC DETECTING CONDITION:
• Two consecutive driving cycles with fault
• GENERAL DESCRIPTION <Ref. to GD(H6DO)-99, DTC P0336 CRANKSHAFT POSITION SENSOR “A”
CIRCUIT RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
• Engine stalls.
• Failure of engine to start

CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H6DO)(diag)-52,
OPERATION, Clear Memory Mode.>, and Inspection Mode <Ref. to EN(H6DO)(diag)-44, PROCEDURE,
Inspection Mode.>.
WIRING DIAGRAM:

EN-03926

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

1

2

8

7

14

24

B20

E1

E10

E10

1 2

B134

ECM

CRANKSHAFT
POSITION
SENSOR

13

E

B20

B134

1 2 3 4
5 6 7 8
9 10 11 12

13 14 15 16

EN(H6DO)(diag)-227

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

ENGINE (DIAGNOSTICS)

Step

Check

Yes

No

1

CHECK CONDITION OF CRANKSHAFT PO-
SITION SENSOR.
Turn the ignition switch to OFF.

Is the crankshaft position sen-
sor installation bolt tightened 
securely?

Go to step 2.

Tighten the crank-
shaft position sen-
sor installation bolt 
securely.

2

CHECK CRANKSHAFT PLATE.

Are the crankshaft plate teeth 
cracked or damaged?

Replace the crank-
shaft plate.

Go to step 3.

3

CHECK INSTALLATION CONDITION OF 
TIMING CHAIN.
Turn the crankshaft, and align alignment mark 
on crank sprocket with alignment mark on cylin-
der block.
ST

18252AA000

CRANKSHAFT 
SOCKET

Is the timing chain dislocated 
from its proper position?

Correct the instal-
lation condition of 
timing chain. <Ref. 
to ME(H6DO)-46, 
Timing Chain 
Assembly.>

Replace the crank-
shaft position sen-
sor. <Ref. to 
FU(H6DO)-21, 
Crankshaft Posi-
tion Sensor.>

EN(H6DO)(diag)-228

Diagnostic Procedure with Diagnostic Trouble Code (DTC)

ENGINE (DIAGNOSTICS)

BZ:DTC P0340 CAMSHAFT POSITION SENSOR “A” CIRCUIT (BANK 1 OR SINGLE 

SENSOR)

DTC DETECTING CONDITION:
• Immediately at fault recognition
• GENERAL DESCRIPTION <Ref. to GD(H6DO)-101, DTC P0340 CAMSHAFT POSITION SENSOR “A”
CIRCUIT (BANK 1 OR SINGLE SENSOR), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
• Engine stalls.
• Failure of engine to start

CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H6DO)(diag)-52,
OPERATION, Clear Memory Mode.>, and Inspection Mode <Ref. to EN(H6DO)(diag)-44, PROCEDURE,
Inspection Mode.>.
WIRING DIAGRAM:

EN-06876

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

B47

1

2

4

6

3

5

E

E2

B21

3

22

SBF-7

E74

E1

B20

E73

1

3

11

2

1

ECM

B134

1

3

4

1

2

5

6

B20

E74

B47

1 2 3

B134

E73

BATTERY

MAIN RELAY

2

21

1 2 3 4
5 6 7 8
9 10 11 12

13 14 15 16

2

6

48

B21

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

CAMSHAFT

POSITION

SENSOR LH

CAMSHAFT

POSITION

SENSOR RH