Subaru Legacy 2003 Service Manual page 1989

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
5 CHECK POWER SUPPLY TO PURGE CON-
TROL SOLENOID VALVE.
1) Turn the ignition switch to ON.
2) Measure the voltage between purge control
solenoid valve and engine ground.
Connector & terminal
(E4) No. 1 (+) — Engine ground ( − − − − ):
Does the measured value exceed the spec-
ified value?
6 CHECK POOR CONTACT.
Check poor contact in purge control solenoid
valve connector.
Is there poor contact in purge control solenoid
valve connector?
Step
EN(H4DOSTC)-150
Value
10 V
There is poor contact.
Yes
Go to step 6. Repair the open
circuit in harness
between main
relay and purge
control solenoid
valve connector.
Repair the poor Contact SUBARU
contact in purge distributor service.
control solenoid
NOTE:
valve connector.
Inspection by DTM
is required,
cause
cause is deteriora-
tion of
parts.
No
be-
probable
multiple