Subaru LEGACY 2003 Service Manual page 29

• If trouble still remains in the memory, the corre-
sponding diagnostic trouble code (DTC) appears
on the display screen.
NOTE:
• For detailed operation procedure, refer to the
SUBARU SELECT MONITOR OPERATION MAN-
UAL.
• For detailed concerning diagnostic trouble
codes, refer to the DIAGNOSTIC TROUBLE CODE
3. WITHOUT SUBARU SELECT MONITOR
1 CHECK STATUS OF CHECK ENGINE MAL-
FUNCTION INDICATOR LAMP (MIL).
1) Start and warm-up the engine.
2) Turn ignition switch to OFF.
3) Set shift lever to neutral position (MT vehi-
cles), or set selector lever to "P" position
(AT vehicles).
4) Connect test mode connector (green).
5) Turn ignition switch to ON.
Does the MIL come on?
2 CHECK DIAGNOSTIC TROUBLE CODE
(DTC).
1) Set selector lever to "N" position, and then
set selector lever to "P" position again (AT
vehicles only).
2) Start the engine.
Does the MIL indicate diagnostic trouble
code (DTC)?
3 CHECK DIAGNOSTIC TROUBLE CODE
(DTC).
1) Drive vehicle at speed greater than 11 km/h
(7 MPH) for at least one minute.
2) Warm-up engine above 2,000 rpm.
Does the MIL indicate diagnostic trouble
code (DTC)?
INSPECTION MODE
Step
EN(H4SOw/oOBD)-27
(DTC) LIST. <Ref. to EN(H4SOw/oOBD)-57, LIST,
List of Diagnostic Trouble Code (DTC).>
• Release the parking brake.
• The speed difference between front and rear
wheels may light either the ABS warning light, but
this indicates no malfunctions. When engine con-
trol diagnosis is finished, perform the ABS memory
clearance procedure of self-diagnosis system.
Value
MIL illuminates.
DTC is displayed.
DTC is displayed.
ENGINE (DIAGNOSTICS)
Yes
Go to step 2. Check the follow-
ing and repair if
necessary.
NOTE:
• Open or short
circuit in engine
control module
power supply or
ground line
• Open or short
circuit in CHECK
ENGINE malfunc-
tion indicator lamp
Record diagnostic Go to step 3.
trouble code
(DTC) and inspect
using DTC. <Ref.
to EN(H4SOw/
oOBD)-59, Diag-
nostic Procedure
with Diagnostic
Trouble Code
(DTC).>
Record diagnostic Turn ignition
trouble code switch to OFF.
(DTC) and inspect Disconnect test
using DTC. <Ref. mode connector.
to EN(H4SOw/ Complete inspec-
oOBD)-59, Diag- tion mode.
nostic Procedure
NOTE:
with Diagnostic
When on-board di-
Trouble Code
agnosis system in-
(DTC).>
dicates no trouble,
the trouble is in a
different symptom.
No