Subaru Legacy III (2000-2003 year). Manual - part 361

EN(H6DO)-246

ENGINE (DIAGNOSTICS)

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

6

CHECK FUEL TANK CORD.
1) Disconnect connector from fuel level sen-

sor.

2) Measure resistance between fuel level sen-

sor and coupling connector.

Connector & terminal

(R57) No. 6 — (R58) No. 3:

Is the measured value less than the speci-
fied value?

10 

Ω

Go to step 7.

Repair open circuit 
between coupling 
connector and fuel 
level sensor.

7

CHECK FUEL TANK CORD.
1) Disconnect connector from fuel sub level 

sensor.

2) Measure resistance between fuel level sen-

sor and fuel sub level sensor.

Connector & terminal

(R58) No. 6 — (R59) No. 2:

Is the measured value less than the speci-
fied value?

10 

Ω

Go to step 8.

Repair open circuit 
between fuel level 
sensor and fuel 
sub level sensor.

8

CHECK FUEL TANK CORD.
Measure resistance between fuel sub level 
sensor and coupling connector.

Connector & terminal

(R57) No. 2 — (R59) No. 1:

Is the measured value less than the specified 
value?

10 

Ω

Go to step 9.

Repair open circuit 
between coupling 
connector and fuel 
sub level sensor.

9

CHECK FUEL LEVEL SENSOR.

Warning:

During work procedures, if fuel tank is more
than 3/4 full, be careful because fuel may
spill.

1) Remove fuel pump assembly. <Ref. to 

FU(H6DO)-65, Fuel Pump.>

2) While moving fuel level sensor float up and 

down, measure resistance between fuel 
level sensor terminals.

Terminals

No. 3 — No. 6:

Does the measured value exceed the spec-
ified value?

54.5 

Ω

Replace fuel level 
sensor. <Ref. to 
FU(H6DO)-67, 
Fuel Level Sen-
sor.>

Go to step 10.

10

CHECK FUEL SUB LEVEL SENSOR.

Warning:

During work procedures, if fuel tank is more
than 3/4 full, be careful because fuel may
spill.

1) Remove fuel sub level sensor. <Ref. to 

FU(H6DO)-68, Fuel Sub Level Sensor.>

2) While moving fuel sub level sensor float up 

and down, measure resistance between 
fuel sub level sensor terminals.

Terminals

No. 1 — No. 2:

Does the measured value exceed the spec-
ified value?

41.5 

Ω

Replace fuel sub 
level sensor. <Ref. 
to FU(H6DO)-68, 
Fuel Sub Level 
Sensor.>

Replace combina-
tion meter. <Ref. 
to IDI-14, Combi-
nation Meter 
Assembly.>

Step

Value

Yes

No

EN(H6DO)-247

ENGINE (DIAGNOSTICS)

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

MEMO:

EN(H6DO)-248

ENGINE (DIAGNOSTICS)

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

BE:DTC P0483 — COOLING FAN RATIONALITY CHECK —

• DTC DETECTING CONDITION:

• Two consecutive driving cycles with fault

• TROUBLE SYMPTOM:

• Occurrence of noise
• Overheating

CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H6DO)-54, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H6DO)-47, OPERATION, Inspec-
tion Mode.>.

NOTE:
If the vehicle, with the engine idling, is placed very close to a wall or another vehicle, preventing normal cool-
ing function, the OBD system may detect malfunction.

EN(H6DO)-249

ENGINE (DIAGNOSTICS)

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)

• WIRING DIAGRAM:

CO-00167

2

1

4

3

28

27

25

29

8

7

5

9

31

32

34

30

21

22

24

20

30A

30A

SUB FAN

RELAY-1

AIR CONDITIONING RELAY HOLDER

SUB FAN

MOTOR

MAIN FAN

MOTOR

MAIN FAN

RELAY-1

F28

F16

F66

SUB FAN

RELAY-2

MAIN FAN

RELAY-2

F29

F30

F27

F17

B100

F2

B72

NO. 18

NO. 17

SBF-4

SBF-1

IGNITION 
SWITCH

RELAY HOLDER (BLACK)

B72

F16

B253

F17

F46

3 4

1 2

B137

BATTERY

17

24

28

B137

ENG

IN

E C

O

NTR

O

L

M

O

DULE

B253

FAN RELAY

5
1
3
4

3

3

4

4

1

1

2

2

1

2

7

8

9

5

6

3

4

10 11 12

19 20 21
29 30 31

13 14 15 16 17

27 28

18

22 23 24 25 26

3 4

1 2

1

3

4

5

2

1

F46

B108

1

F44

B61

LHD

LHD

RHD

RHD

1

*

2

*

1

*

2

*

LHD : 7

LHD : 6

RHD : 5

RHD : 6

1 2 3 4
5 6 7 8

F44

F2

3 4

1 2

8 9 10 11

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

5 6

7

1

2

5 6

8
9

7

3

4

25 26 27

28
29

30
31

32 33 34

10
11

12 13 14

15 16 17

18
19

20
21

22 23 24

35

36

F30

F28

F29

F66

F27