Subaru 2002 IMPREZA Service Manual page 280

ENGINE MALFUNCTION INDICATOR LAMP (MIL)
ENGINE (DIAGNOSTICS)
~
D: CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) DOES NOT GO
OFF.
DIAGNOSIS:
TROUBLE SYMPTOM:
The CHECK ENGINE malfunction indicator lamp (MIL) circuit is shorted.
Although MIL comes on when the engine runs, trouble code is not shown on the Subaru select monitor
or OBD-ll general scan
tool
display.
WIRING DIAGRAM:
IGNITION
q l
1
OMBINATION
ETER
A : @
C : @
BATTERY
@
ECM
U
I
EN1137
Step
1 CHECK HARNESS BETWEEN COMBINA-
TlON METER AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Turn the ignition switch to ON.
Check
Does the MIL come on?
t
in harness <Ref. to FU(D0HC
EN(D0HC TURBO)-56