Subaru Legacy 2001 Service Manual page 89

DIAGNOSTICS FOR ENGINE STARTING FAILURE
No.
13 CHECK HARNESS BETWEEN ECM AND
FUEL INJECTOR CONNECTOR.
Measure resistance of harness between ECM
and fuel injector connector.
Connector & terminal
(B136) No. 1 — (B137) No. 3:
14 CHECK HARNESS BETWEEN ECM AND
FUEL INJECTOR CONNECTOR.
Measure resistance of harness between ECM
and fuel injector connector.
Connector & terminal
(B136) No. 1 — Chassis ground:
15 CHECK EACH FUEL INJECTOR.
1) Turn ignition switch to OFF.
2) Measure resistance between each fuel
injector terminals.
Terminals
No. 1 — No. 2:
16 CHECK POOR CONTACT.
Check poor contact in ECM connector.
Step
Is the resistance between 5
and 20 Ω?
Is the resistance less than
1 Ω?
Is the resistance between 5
and 20 Ω?
Is there poor contact in
ECM connector?
EN(H6)-87
Check Yes
Go to step 14.
Repair ground
short circuit in
harness between
ECM and fuel
injector connector.
Go to step 16.
Repair poor con-
tact in ECM con-
nector.
Engine (DIAGNOSTICS)
No
Repair harness
and connector.
NOTE:
In this case,
repair the follow-
ing:
¼ Open circuit in
harness between
ECM and fuel
injector connector
¼ Poor contact in
coupling connec-
tor
Go to step 15.
Replace faulty
fuel injector.
Check crankshaft
position sensor
circuit. <Ref. to
EN(H6)-89
CRANKSHAFT
POSITION SEN-
SOR CIRCUIT,
Diagnostics for
Engine Starting
Failure.>