Subaru Legacy 2005 Service Manual page 1964

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
1 CHECK HARNESS BETWEEN GENERATOR
AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from generator
and ECM.
3) Measure the resistance of harness
between generator connector and engine
ground.
Connector & terminal
(F26) No. 3 — Engine ground:
2 CHECK HARNESS BETWEEN GENERATOR
AND ECM CONNECTOR.
Measure the resistance of harness between
ECM and generator.
Connector & terminal
(B136) No. 22 — (F26) No. 3:
Check
Is the resistance more than 1
MΩ?
Is the resistance less than 1
Ω?
EN(H6DO)(diag)-268
Yes
Go to step 2. Repair the ground
short circuit of har-
ness between
ECM and genera-
tor connector.
Repair the poor Repair the open
contact in connec- circuit of harness
tor. between ECM and
generator connec-
tor.
NOTE:
In this case, repair
the following:
• Open circuit of
harness between
ECM and genera-
tor connector
• Poor contact in
coupling connector
No