Subaru Legacy 2002 Service Manual page 2463

VDC (Diagnostics)
2. WITH SUBARU SELECT MONITOR
No.
1 CHECK PRE-INSPECTION.
1) Ask the customer when and how the
trouble occurred using interview checklist.
<Ref. to VDC-5, Check List for Interview.>
2) Before performing diagnosis, inspect unit
which might influence the VDC problem. <Ref.
to VDC-8, INSPECTION, General Descrip-
tion.>
2 CHECK INDICATION OF TROUBLE CODE
DISPLAY.
1) Turn ignition switch to OFF.
2) Connect the SUBARU SELECT MONITOR
to data link connector.
3) Turn ignition switch to ON and SUBARU
SELECT MONITOR to ON.
4) Calling up the diagnostic trouble code
(DTC). <Ref. to VDC-22, WITH SUBARU
SELECT MONITOR, OPERATION, Read
Diagnostic Trouble Code (DTC).>
5) Record all diagnostic trouble codes (DTCs)
and frame data.
3 PERFORM THE GENERAL DIAGNOSTICS.
1) Inspect using "General Diagnostics Table".
<Ref. to VDC-271, INSPECTION, General
Diagnostic Table.>
2) Perform the clear memory mode. <Ref. to
VDC-24, WITH SUBARU SELECT MONITOR,
OPERATION, Clear Memory Mode.>
3) Perform the inspection mode. <Ref. to
VDC-23, OPERATION, Inspection Mode.>
4) Calling up the diagnostic trouble code
(DTC). <Ref. to VDC-22, WITH SUBARU
SELECT MONITOR, OPERATION, Read
Diagnostic Trouble Code (DTC).>
4 PERFORM THE DIAGNOSIS.
1) Inspect using "Diagnostics Chart with
Subaru Select Monitor". <Ref. to VDC-134,
Diagnostics Chart with Select Monitor.>
NOTE:
For diagnostic trouble code (DTC) list, refer to
"List of Diagnostic Trouble Code (DTC)".
<Ref. to VDC-29, WITH SUBARU SELECT
MONITOR, LIST, List of Diagnostic Trouble
Code (DTC).>
2) Repair trouble cause.
3) Perform the clear memory mode. <Ref. to
VDC-24, WITH SUBARU SELECT MONITOR,
OPERATION, Clear Memory Mode.>
4) Perform the inspection mode. <Ref. to
VDC-23, OPERATION, Inspection Mode.>
5) Calling up the diagnostic trouble code
(DTC). <Ref. to ABS-16, READ DIAGNOSTIC
TROUBLE CODE, OPERATION, Subaru
Select Monitor.>
NOTE:
¼ To check harness for broken wires or short circuits, shake it while holding it or the connector.
¼ Check list for interview. <Ref. to VDC-5, Check List for Interview.>
BASIC DIAGNOSTIC PROCEDURE
S005501E4502
Step
Is unit that might influence
the VDC problem normal?
Is the corresponding
trouble encoding?
Is no diagnostic trouble
code (DTC) designated or
do VDC and ABS warning
lights constantly remain
on?
Is no diagnostic trouble
code (DTC) designated or
do VDC and ABS warning
lights constantly remain
on?
VDC-4
Check Yes
Go to step 2.
Go to step 3.
Complete the
diagnosis.
Complete the
diagnosis.
No
Repair or replace
each unit.
Go to step 4.
Go to step 4.
Inspect using
"Diagnostics Chart
with Subaru
Select Monitor".
<Ref. to VDC-134,
Diagnostics Chart
with Select Moni-
tor.>