Subaru 2006 Legacy, Manual

Page: 305 / 4302

EN(H4SO)(diag)-26 8
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
1 CHECK ANY OTHER DTC ON DISPLAY.
Is any other DTC displayed? Check DTC using
“List of Diagnostic
Trouble Code
(DTC)”. <Ref. to
EN(H4SO)(diag)-
70, List of Diag-
nostic Trouble
Code (DTC).> Go to step
2
.
2 CHECK HARNESS BETWEEN ECM AND
EGR VALVE CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from EGR valve.
3) Turn the ignition switch to ON.
4) Measure the voltage between ECM con-
nector and chassis ground.
Connector & terminal
DTC P1493;
(B134) No. 8 (+) — Chassis ground (–):
DTC P1495;
(B134) No. 9 (+) — Chassis ground (–):
DTC P1497;
(B134) No. 10 (+) — Chassis ground (–):
DTC P1499;
(B134) No. 20 (+) — Chassis ground (–):
Is the voltage more than 10 V? Repair the battery
short in harness
between ECM and
EGR valve con-
nector. After
repair, replace the
ECM. <Ref. to
FU(H4SO)-36,
Engine Control
Module (ECM).>
Replace the ECM.
<Ref. to
FU(H4SO)-36,
Engine Control
Module (ECM).>
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