Subaru Legacy IV (2008 year). Manual - part 1173

LAN(diag)-26

Subaru Select Monitor

LAN SYSTEM (DIAGNOSTICS)

CAUTION:
When replacing body integrated unit on the model with immobilizer system, refer to the “PC applica-
tion help for Subaru Select Monitor”

2. WITHOUT DTC

DETECTING CONDITION:
Defective combination meter
TROUBLE SYMPTOM:
• Communication error display in odo/trip meter is not cleared. (Except for meter with MID)
• “No diagnostic Code Present” will be displayed on the Subaru Select Monitor. is displayed on Subaru Se-
lect Monitor.

NOTE:
If DTC is not displayed on Subaru Select Monitor, LAN communication System should be OK.

11

CHECK HARNESS CONNECTOR BETWEEN 
BODY INTEGRATED UNIT AND CHASSIS 
GROUND.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from body inte-
grated unit.
3) Measure the resistance of harness between 
the body integrated unit and chassis ground.

Connector & terminal

(B280) No. 19 — Chassis ground:

Is the resistance 1 M

: or 

more?

Go to step 12.

Repair the poor 
contact of harness 
between body inte-
grated unit and 
ground.

12

CHECK POOR CONTACT OF CONNEC-
TORS.

Is there poor contact at control 
unit ground and Subaru Select 
Monitor?

Repair the poor 
contact of connec-
tor.

Replace the body 
integrated unit. 
<Ref. to SL-56, 
Body Integrated 
Unit.>

Step

Check

Yes

No

1

CHECK DTC.
Read the DTC of body integrated unit using 
Subaru Select Monitor.

Is DTC displayed?

Perform the diag-
nosis according to 
DTC.

Go to step 2.

2

CHECK COMBINATION METER.
Perform the self-diagnosis of combination 
meter.

Is combination meter OK?

Go to step 3.

Replace the com-
bination meter. 
<Ref. to IDI-22, 
Combination 
Meter.>

3

CHECK BODY INTEGRATED UNIT.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of “Body Int. Unit Data”.

Is “ON” displayed?

Go to step 4.

Replace the body 
integrated unit. 
<Ref. to SL-56, 
Body Integrated 
Unit.>

4

CHECK BODY INTEGRATED UNIT.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of “Body Int. Unit Count”.

Is “ON” displayed?

Repair the poor 
contact of connec-
tor.

Replace the body 
integrated unit. 
<Ref. to SL-56, 
Body Integrated 
Unit.>

Step

Check

Yes

No

LAN(diag)-27

Read Diagnostic Trouble Code (DTC)

LAN SYSTEM (DIAGNOSTICS)

7. Read Diagnostic Trouble Code 

(DTC)

A: OPERATION

For details concerning DTC reading procedure, re-
fer to “Subaru Select Monitor”. <Ref. to LAN(diag)-
12, READ DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>

LAN(diag)-28

Clear Memory Mode

LAN SYSTEM (DIAGNOSTICS)

8. Clear Memory Mode

A: OPERATION

For details concerning DTC clear operation, refer to
“Subaru Select Monitor”. <Ref. to LAN(diag)-20,
CLEAR MEMORY MODE, OPERATION, Subaru
Select Monitor.>

LAN(diag)-29

Read Current Data

LAN SYSTEM (DIAGNOSTICS)

9. Read Current Data

A: OPERATION

1) On the «Main Menu» display, select the {Each
System Check}.
2) On the «System Selection Menu» display, select
the {Integ. unit mode}.
3) On the «Integ. unit mode failure diag» display,
select the {Current Data Display & Save}.
4) On the «Data Display Menu» display, select the
{Data Display}.
5) Using the scroll key, scroll the display screen up
or down until the desired data is shown.
<Ref. to LAN(diag)-13, DISPLAY OF ANALOG DA-
TA, OPERATION, Subaru Select Monitor.> <Ref.
to LAN(diag)-14, DISPLAY OF ON/OFF DATA,
OPERATION, Subaru Select Monitor.> <Ref. to
LAN(diag)-17, CONFIRMATION OF CURRENT
SETTING, OPERATION, Subaru Select Monitor.>