Subaru Legacy 2003 Service Manual page 868

DIAGNOSTICS FOR ENGINE STARTING FAILURE
Step
11 CHECK HARNESS BETWEEN ECM AND IG-
NITION COIL & IGNITOR ASSEMBLY CON-
NECTOR.
Measure resistance of harness between ECM
and chassis ground.
Connector & terminal
(B134) No. 25 — Chassis ground:
Does the measured value exceed the specified
value?
12 CHECK POOR CONTACT.
Check poor contact in ECM connector.
Is there poor contact in ECM connector?
Value
1 MΩ
There is poor contact.
EN(H4SOw/oOBD)-49
ENGINE (DIAGNOSTICS)
Yes
Go to step 12. Repair ground
short circuit in har-
ness between
ECM and ignition
coil & ignitor
assembly connec-
tor.
Repair poor con- Check spark plug
tact in ECM con- and spark plug
nector. cord. <Ref. to
IG(H4SOw/
oOBD)-5, Spark
Plug.> <Ref. to
IG(H4SOw/
oOBD)-10, Spark
Plug Cord.>
No