Subaru Legacy (2005 year). Manual - part 415

LU(H6DO)-3

LUBRICATION

General Description

B: COMPONENT

LU-02150

(4)

(3)

T8

(8)

(16)

(20)

(2)

(17)

(13)

(7)

(9)

(6)

(7)

(14)

(18)

(1)

(21)

(19)

(25)

(24)

(23)

T1

T4

T4

T1

T4

T7

T6

T4

T5 

T3

T8

T10

(8)

(8)

(11)

(10)

T9

(12)

T2

(15)

(8)

(22)

(6)

(7)

(7)

(7)

(7)

(6)

(5)

T1

LU(H6DO)-4

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 the 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 

(1)

Oil pan lower

(14)

Outer rotor

Tightening torque: N

⋅

m (kgf-m, ft-lb)

(2)

Magnet

(15)

Crank sprocket

T1: 6.4 (0.65, 4.7)

(3)

Drain plug

(16)

Oil pan upper

T2: <Ref. to LU(H6DO)-8, 

INSTALLATION, Oil Pump.>

(4)

Gasket

(17)

Plug

(5)

Oil cooler pipe

(18)

Plug

T3: 16 (1.6, 12)

(6)

Hose

(19)

Plug

T4: 18 (1.8, 13)

(7)

Clamp

(20)

Oil pressure switch

T5: 23 (2.3, 17)

(8)

O-ring

(21)

Plug

T6: 25 (2.5, 18.4)

(9)

Oil cooler

(22)

Oil strainer

T7: 37 (3.8, 27)

(10)

Oil cooler connector

(23)

Plug

T8: 44 (4.5, 32.5)

(11)

Oil filter

(24)

Relief valve spring

T9: 54 (5.5, 40)

(12)

Oil pump cover

(25)

Relief valve

T10: 90 (9.2, 66)

(13)

Inner rotor

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

499977100

CRANK PULLEY 
WRENCH

Used for stopping rotation of crank pulley when 
removing and tightening crank pulley bolt.

498547000

OIL FILTER 
WRENCH

Used for removing and installing oil filter.

ST-499977100

ST-498547000

LU(H6DO)-5

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(H6DO)-6

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 in 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 combination 
meter.

Terminals

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