Subaru Legacy (2005 year). Manual — part 90

LU(H4SO 2.0)-5

LUBRICATION

General Description

C: CAUTION

• Wear work clothing, including a cap, protective
goggles, and protective shoes during operation.
• Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
• Keep the disassembled parts in order and pro-
tect them from dust and dirt.
• Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary re-
moval, installation, disassembly and replacement.

• Be careful not to burn yourself, because each
part on the vehicle is hot after running.
• Be sure to tighten fasteners including bolts and
nuts to specified torque.
• Place shop jacks or rigid racks at the specified
points.
• Before disconnecting connectors of sensors or
units, be sure to disconnect the ground cable from
battery.

D: PREPARATION TOOL

1. SPECIAL TOOL

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

499977400

CRANK PULLEY
WRENCH

Used for stopping rotation of crank pulley when
removing and tightening crank pulley bolt. (2.0 L
model)

499977100

CRANK PULLEY
WRENCH

Used for stopping rotation of crank pulley when
removing and tightening crank pulley bolt. (2.5 L
model)

18332AA000

OIL FILTER
WRENCH

Used for removing and installing oil filter. (Outer
diameter 68 mm (2.68 in))

ST-499977400

ST-499977100

ST18332AA000

LU(H4SO 2.0)-6

LUBRICATION

General Description

18332AA010

OIL FILTER
WRENCH

Used for removing and installing oil filter. (Outer
diameter 65 mm (2.56 in))

499587100

OIL SEAL
INSTALLER

Used for installing oil seal into oil pump.

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

ST18332AA010

ST-499587100

LU(H4SO 2.0)-7

LUBRICATION

Oil Pressure System

2. Oil Pressure System

A: WIRING DIAGRAM

LU-02155

E

i10

i3

B38

3

15

B21

E2

17

E11

No.5

SBF-6

MAIN SBF

B72

3

6

BATTERY

IGNITION
SWITCH

COMBINATION
METER

OIL PRESSURE

W

ARNING LIGHT

OIL PRESSURE
SWITCH

31

4

B21

1 2 3 4

12 13 14 15

5 6 7 8

16 17 18 19

9 10 11

20 21 22

23 24 25 26 27 28 29 30 31 32 33

35

34

37

36

39

38

41

40

43

42

44

45

47

46

49

48

51

50

53

52

54

1

3

4 5 6

2

B72

1 2 3 4

5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20

B38

i10

2

1

3 4

6 7 8 9 10

22

21

20

19

18

17

16

15

14

13

12

11

5

LU(H4SO 2.0)-8

LUBRICATION

Oil Pressure System

B: INSPECTION

Step

Check

Yes

No

1

CHECK COMBINATION METER.
1) Turn the ignition switch to ON. (engine
OFF)
2) Check the warning light of combination
meter.

Does the warning light illumi-
nate?

Go to step 2.

Repair or replace
the combination
meter. <Ref. to IDI-
3, INSPECTION,
Combination
Meter System.>

2

CHECK HARNESS CONNECTOR BETWEEN
COMBINATION METER AND OIL PRES-
SURE SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from oil pressure
switch.
3) Turn the ignition switch to ON.
4) Measure the voltage of harness between oil
pressure switch connector and chassis ground.

Connector & terminal

(E11) No. 1 (+) — Chassis ground (

−

):

Is the voltage more than 10 V? Replace the oil

pressure switch.

Go to step 3.

3

CHECK COMBINATION METER.
1) Turn the ignition switch to OFF.
2) Remove the combination meter.
3) Measure the resistance of the combination
meter.

Connector & terminal

(i10) No. 3 — (i10) No. 15:
(i10) No. 4 — (i10) No. 15:

Is the resistance less than 10
Ω?

Replace the har-
ness connector
between combina-
tion meter and oil
pressure switch.

Repair or replace
the combination
meter. <Ref. to IDI-
3, INSPECTION,
Combination
Meter System.>