Subaru Legacy (2005 year). Manual - part 1026

IM(diag)-9

IMMOBILIZER (DIAGNOSTICS)

Read Diagnostic Trouble Code (DTC)

6. Read Diagnostic Trouble 

Code (DTC)

A: OPERATION

1. ENGINE ECM

1) On the “Main Menu” display screen, select the
{Each System Check} and press the [YES] key.
2) On the “System Selection Menu” display screen,
select the {Engine Control System} and press the
[YES] key.
3) Press the [YES] key after the information of en-
gine type is displayed.
4) On the “Engine Diagnosis” display screen, select
the {Diagnostic Code(s) Display}, and then press
the [YES] key.
5) On the “Diagnostic Code(s) Display” display
screen, select the {Current Diagnostic Code(s)} or
{History Diagnostic Code(s)}, and then press the
[YES] key.

NOTE:
• For detailed operation procedure, refer to the
SUBARU SELECT MONITOR OPERATION MAN-
UAL.
• For detailed concerning DTC, refer to the List of
DTC. <Ref. to IM(diag)-15, LIST, List of Diagnostic
Trouble Code (DTC).>

2. BODY INTEGRATED MODULE

1) On the “Main Menu” display screen, select the
{Each System Check} and press the [YES] key.
2) On the “System Selection Menu” display screen,
select the {Integ. unit mode} and press the [YES]
key.
3) Press the [YES] key after the {Integ. unit mode}
is displayed.
4) On the “Integ. unit mode failure diag” display
screen, select the {Diagnostic Code(s) Display}
and press the [YES] key.

NOTE:
• For detailed operation procedure, refer to the
SUBARU SELECT MONITOR OPERATION MAN-
UAL.
• For detailed concerning DTC, refer to the List of
DTC. <Ref. to IM(diag)-15, LIST, List of Diagnostic
Trouble Code (DTC).>

IM(diag)-10

IMMOBILIZER (DIAGNOSTICS)

Clear Memory Mode

7. Clear Memory Mode

A: OPERATION

1. ENGINE ECM

1) On the “Main Menu” display screen, select the
{Each System Check} and press the [YES] key.
2) On the “System Selection Menu” display screen,
select the {Engine Control System} and press the
[YES] key.
3) Press the [YES] key after the information of en-
gine type is displayed.
4) On the “Engine Diagnosis” display screen, select
the {Clear Memory} and press the [YES] key.
5) When the “Done” are shown on the display
screen, turn the Subaru Select Monitor and ignition
switch to OFF.

NOTE:
• After the memory has been cleared, the idle air
control solenoid valve must be initialized. To exe-
cute this procedure, turn the ignition switch to ON.
Wait for 3 seconds before starting the engine.
• For detailed operation procedure, refer to the
SUBARU SELECT MONITOR OPERATION MAN-
UAL.

2. BODY INTEGRATED MODULE

1) On the “Main Menu” display screen, select the
{Each System Check} and press the [YES] key.
2) On the “System Selection Menu” display screen,
select the {Integ. unit mode} and press the [YES]
key.
3) Press the [YES] key after the {Integ. unit mode}
is displayed.
4) On the “Integ. unit mode failure diag” display
screen, select the {Clear Memory} and press the
[YES] key.
5) When the “Done” are shown on the display
screen, turn the Subaru Select Monitor and ignition
switch to OFF.

NOTE:
For detailed operation procedure, refer to the SUB-
ARU SELECT MONITOR OPERATION MANUAL.

IM(diag)-11

IMMOBILIZER (DIAGNOSTICS)

Diagnostics Chart for Immobilizer Indicator Light

8. Diagnostics Chart for Immobilizer Indicator Light

A: INSPECTION

1. CHECK IMMOBILIZER INDICATOR CIRCUIT

WIRING DIAGRAM:

IM-00138

MAIN SBF

SBF-3

BATTERY

COMBINATION METER

BODY INTEGRATED MODULE

i10

R98

i53

F/B No.7

F/B No.12

IGNITION

SWITCH

A33

C2

B7

C9

C8

A17

A2

E

A:

A1

13

A1

M/B No.8

SBF-8

B22

i84

A:

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

B281

i84

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

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

i10

2

1

3 4

6 7 8 9 10

22

21

20

19

18

17

16

15

14

13

12

11

5

1 2 3

8

9 10

4

11 12 13 14 15 16

5 6 7

17 18

i53

A:

C:

B:

A:

RHD

LHD

11

R167

i102

 : LHD MODEL 

: RHD MODEL 

LHD

RHD

i102

LHD

RHD

IMMOBILIZER
INDICATOR
LIGHT

IM(diag)-12

IMMOBILIZER (DIAGNOSTICS)

Diagnostics Chart for Immobilizer Indicator Light

Step

Check

Yes

No

1

CHECK IMMOBILIZER INDICATOR LIGHT.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from 
body integrated module.
3) Connect the resistor (100 

Ω) between body 

integrated module harness connector terminal 
(i84) No. 33 and chassis ground.

Does the immobilizer indicator 
light illuminate?

Go to step 2.

Go to step 5.

2

CHECK BODY INTEGRATED MODULE 
GROUND CIRCUIT.
Measure the resistance between body inte-
grated module harness connector terminal and 
chassis ground.

Connector & terminal

(B280) No. 22 — Chassis ground:
(B281) No. 8, No. 9 — Chassis ground:

Is the resistance less than 10 
Ω?

Go to step 3.

Repair the open 
circuit of body inte-
grated module 
ground circuit. 

3

CHECK BODY INTEGRATED MODULE IGNI-
TION CIRCUIT.
1) Turn the ignition switch to ON. (engine 
OFF)
2) Measure the voltage between body inte-
grated module harness connector terminal and 
chassis ground.

Connector & terminal

(i84) No. 1 (+) — Chassis ground (

−

):

Is the voltage more than 10 V? Go to step 4.

Check the harness 
for open or short 
circuit between 
body integrated 
module and igni-
tion switch.

4

CHECK BODY INTEGRATED MODULE 
POWER SUPPLY CIRCUIT.
1) Turn the ignition switch to OFF.
2) Measure the voltage between body inte-
grated module harness connector terminal and 
chassis ground.

Connector & terminal

(B280) No. 7 (+) — Chassis ground (

−

):

(B281) No. 2 (+) — Chassis ground (

−

):

Is the voltage more than 10 V? Replace the body 

integrated module 
<Ref. to SL-44, 
Body Integrated 
Module.> and 
replace all the igni-
tion keys (includ-
ing transponder). 
Execute the regis-
tration procedure 
next. Refer to 
“IMMOBILIZER 
TEACHING 
OPERATION 
MANUAL”.

Check the harness 
for open or short 
circuit between 
body integrated 
module and fuse.

5

CHECK COMBINATION METER CIRCUIT.
1) Remove the combination meter. <Ref. to 
IDI-15, Combination Meter.>
2) Measure the voltage between the combina-
tion meter harness connector terminal and 
chassis ground.

Connector & terminal

(i10) No. 1, No. 2 (+) — Chassis ground (

−

):

Is the voltage more than 10 V? Go to step 6.

Check the harness 
for open or short 
circuit between 
combination meter 
and fuse.

6

CHECK COMBINATION METER CIRCUIT.
Measure the resistance between body inte-
grated module harness connector terminal and 
combination meter harness connector termi-
nal.

Connector & terminal

(i84) No. 33 — (i10) No. 17:

Is the resistance less than 10 
Ω?

LED bulb malfunc-
tion. Replace the 
combination meter 
case assembly. 
<Ref. to IDI-16, 
DISASSEMBLY, 
Combination 
Meter.>

Repair the har-
ness or connector.