Subaru Legacy 2003 Service Manual page 1996

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
Step
1 CHECK SPEEDOMETER OPERATION IN
COMBINATION METER.
Does the speedometer operate normally?
2 CHECK HARNESS BETWEEN ECM AND
COMBINATION METER CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from combination
meter.
3) Measure the resistance between ECM and
combination meter.
Connector & terminal
(B134) No. 1 — (i10) No. 11:
Is the measured value less than the speci-
fied value?
Value
Operates normally.
10 Ω
EN(H4DOSTC)-157
ENGINE (DIAGNOSTICS)
Yes
Go to step 2. Check the speed-
ometer and vehi-
cle speed sensor.
<Ref. to IDI-19,
Speedometer.>
Repair the poor Repair the har-
contact in ECM ness and connec-
connector. tor.
NOTE:
In this case, repair
the following:
• Open circuit in
harness between
ECM and combi-
nation meter con-
nector
• Poor contact in
ECM connector
• Poor contact in
combination meter
connector
• Poor contact in
coupling connector
No