Subaru Legacy 2003 Service Manual page 1888

ENGINE MALFUNCTION INDICATOR LAMP (MI)
Step
1 CHECK TEST MODE CONNECTOR.
1) Disconnect the test mode connector.
2) Turn the ignition switch to ON.
Does the MI flash on and off?
2 CHECK HARNESS BETWEEN ECM CON-
NECTOR AND ENGINE GROUNDING TER-
MINAL.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM.
3) Measure the resistance of harness
between ECM connector and chassis
ground.
Connector & terminal
(B134) No. 5 — Chassis ground:
Does the measured value exceed the spec-
ified value?
Value
MI flashes.
1 MΩ
EN(H4DOSTC)-49
ENGINE (DIAGNOSTICS)
Yes
Go to step 2. System is in good
order.
NOTE:
MI blinks at a cycle
of 3 Hz when test
mode connector is
connected.
Replace the ECM. Repair the short
<Ref. to circuit in harness
FU(H4DOSTC)- between ECM and
40, Engine Con- test mode connec-
trol Module.> tor.
No