Subaru Legacy 2005 Service Manual page 1698

ENGINE (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
1. ENGINE
Step
1 CHECK ENGINE START FAILURE.
1) Ask the customer when and how the trou-
ble occurred using the interview check list.
<Ref. to EN(H6DO)(diag)-3, CHECK, Check
List for Interview.>
2) Start the engine.
2 CHECK ILLUMINATION OF MALFUNCTION
INDICATOR LIGHT.
3 CHECK INDICATION OF DTC ON DISPLAY.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor or gen-
eral scan tool to data link connector.
3) Turn the ignition switch to ON.
4) Read DTC using Subaru Select Monitor or
general scan tool.
NOTE:
• Subaru Select Monitor
For detailed operation procedure, refer to
"Read Diagnostic Trouble Code (DTC)". <Ref.
to EN(H6DO)(diag)-33, Read Diagnostic Trou-
ble Code (DTC).>
• General scan tool
For detailed operation procedure, refer to the
general scan tool operation manual.
4 PERFORM DIAGNOSIS.
1) Perform the clear memory mode. <Ref. to
EN(H6DO)(diag)-41, Clear Memory Mode.>
2) Perform the inspection mode. <Ref. to
EN(H6DO)(diag)-34, Inspection Mode.>
Basic Diagnostic Procedure
Does the engine start?
Does the malfunction indicator
light illuminate?
Is DTC displayed on the Sub-
aru Select Monitor or general
scan tool?
Is DTC displayed on the Sub-
aru Select Monitor or general
scan tool?
EN(H6DO)(diag)-2
Check
Go to step 2.
Go to step 3.
Record the DTC.
Repair the trouble
cause. <Ref. to
EN(H6DO)(diag)-
66, List of Diag-
nostic Trouble
Code (DTC).> Go
to step 4.
Check on "Diag-
nostic Procedure
with Diagnostic
Trouble Code
(DTC)".
<Ref. to
EN(H6DO)(diag)-
72, Diagnostic
Procedure with
Diagnostic Trou-
ble Code (DTC).>
Yes No
Inspection using
"Diagnostics for
Engine Starting
Failure" <Ref. to
EN(H6DO)(diag)-
53, Diagnostics for
Engine Starting
Failure.>
Inspection using
"General Diagnos-
tic Table". <Ref. to
EN(H6DO)(diag)-
269, INSPEC-
TION, General
Diagnostic Table.>
Repair the related
parts.
NOTE:
If DTC is
shown on display
although the mal-
function indicator
light illuminates,
perform the diag-
nostics of malfunc-
tion indicator light
circuit or combina-
tion meter. <Ref. to
EN(H6DO)(diag)-
44, Malfunction In-
dicator Light.>
Finish the diagno-
sis.
not