Subaru Legacy 2002 Service Manual page 570

ENGINE MALFUNCTION INDICATOR LAMP (MIL)
D: CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) DOES NOT GO
OFF.
S078653E91
¼ DIAGNOSIS:
¼ The CHECK ENGINE malfunction indicator lamp (MIL) circuit is shorted.
¼ TROUBLE SYMPTOM:
¼ Although MIL comes on when engine runs, trouble code is not shown on Subaru select monitor or
OBD-II general scan tool display.
¼ WIRING DIAGRAM:
No.
1 CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM CONNECTOR.
1) Turn ignition switch to OFF.
2) Disconnect connector from ECM.
3) Turn ignition switch to ON.
Step
Does the MIL come on?
EN-53
Check Yes
Repair short cir-
cuit in harness
between combina-
tion meter and
ECM connector.
Engine (Diagnostics)
B2M4705
No
Replace ECM.
<Ref. to FU-51,
Engine Control
Module.>