Subaru Legacy 2002 Service Manual page 871

DIAGNOSTICS FOR ENGINE STARTING FAILURE
Engine (Diagnostics)
No.
6 CHECK FUEL PUMP RELAY.
1) Disconnect connector from fuel pump relay.
2) Remove fuel pump relay from bracket.
3) Connect battery to fuel pump relay connec-
tor terminals No. 1 and No. 3.
4) Measure resistance between connector
terminals of fuel pump relay.
Terminals
No. 2 — No. 4:
7 CHECK HARNESS BETWEEN ECM AND
FUEL PUMP RELAY CONNECTOR.
1) Disconnect connectors from ECM.
2) Measure resistance of harness between
ECM and fuel pump relay connector.
Connector & terminal
(B134) No. 29 — (B46) No. 3:
(B134) No. 16 — (B46) No. 3:
8 CHECK POOR CONTACT.
Check poor contact in ECM connector.
Step
Is the resistance less than
10 Ω?
Is the resistance less than
1 Ω?
Is there poor contact in
ECM connector?
EN(w/oOBD)-60
Check Yes
Go to step 7.
Go to step 8.
Repair poor con-
tact in ECM con-
nector.
No
Replace fuel
pump relay.
Repair open cir-
cuit in harness
between ECM
and fuel pump
relay connector.
Check fuel injec-
tor circuit. <Ref. to
EN(w/oOBD)-62,
FUEL INJECTOR
CIRCUIT, Diag-
nostics for Engine
Starting Failure.>