Subaru LEGACY 2006 Manual page 957

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ENGINE (DIAGNOSTICS)
Step
3 CHECK ECM CONNECTOR.
Check the connection of ECM connector.
4 CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Remove the combination meter. <Ref. to
IDI-14, Combination Meter.>
3) Disconnect the connector from ECM and
combination meter.
4) Measure the resistance of harness
between ECM and combination meter connec-
tor.
Connector & terminal
(B136) No. 11 — (i10) No. 16:
5 CHECK POOR CONTACT.
Check poor contact of combination meter con-
nector.
6 CHECK HARNESS BETWEEN COMBINA-
TION METER AND IGNITION SWITCH CON-
NECTOR.
1) Turn the ignition switch to ON.
2) Measure the voltage between combination
meter connector and chassis ground.
Connector & terminal
(i10) No. 3 (+) — Chassis ground (–):
(i10) No. 4 (+) — Chassis ground (–):
Malfunction Indicator Light
Check
Is the ECM connector correctly
connected?
Is the resistance less than 1
Ω?
Is there poor contact in combi-
nation meter connector?
Is the voltage more than 10 V? Replace the com-
EN(H4SO U5)(diag)-52
Yes No
Replace the ECM. Repair the con-
<Ref. to nection of ECM
FU(H4SO)-36, connector.
Engine Control
Module (ECM).>
Go to step 5.
Repair the har-
ness and connec-
tor.
NOTE:
In this case, repair
the following item:
• Open circuit of
harness between
ECM and combi-
nation meter con-
nector
• Poor contact of
coupling connector
Go to step 6.
Repair the poor
contact of combi-
nation meter con-
nector.
Check the follow-
bination meter ing item and repair
board. <Ref. to if necessary.
IDI-14, Combina-
NOTE:
tion Meter.>
• Blown out
fuse (No. 5)
• Open or short
circuit of harness
between fuse (No.
5) and battery ter-
minal
• Poor contact of
ignition switch con-
nector
of