Subaru Impreza 2003 Service Manual page 800

ENGINE (DIAGNOSTICS)
7. Read Diagnostic Trouble Code (DTC)
A: OPERATION
1. WITH SUBARU SELECT MONITOR
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 engine type is displayed.
4) On the «Engine Diagnosis» display screen, select the {DTC Display} and press the [YES] key.
5) On the «DTC Display» display screen, select the {Current DTC} or {History DTC} and press the [YES] key.
NOTE:
• For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
• For detailed concerning DTCs, refer to the List of DTC. <Ref. to EN(H4SOw/oOBD)-55, LIST, List of Di-
agnostic Trouble Code (DTC).>
2. WITHOUT SUBARU SELECT MONITOR
Step
1 CHECK STATUS OF CHECK MALFUNCTION
INDICATOR LIGHT.
1)Turn the ignition switch to OFF.
2)Connect the read memory connector. <Ref.
to EN(H4SOw/oOBD)-9, LOCATION, Electri-
cal Components Location.>
3)Turn the ignition switch to ON.
2 CHECK DTC.
READ DIAGNOSTIC TROUBLE CODE (DTC)
EN(H4SOw/oOBD)-24
Check
Does the malfunction indicator
light come on?
Does the malfunction indicator
light indicate DTC?
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 malfunc-
tion indicator light
Record the DTC. Complete the read
Then turn the igni- DTC. Turn the
tion switch to OFF, ignition switch to
disconnect read OFF and discon-
memory connec- nect read memory
tor. connector.
No