Subaru LEGACY 2006 Manual page 147

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
8 CHECK HARNESS BETWEEN ECM AND
MANIFOLD ABSOLUTE PRESSURE SEN-
SOR CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM.
3) Measure the resistance of harness
between ECM and manifold absolute pressure
sensor connector.
Connector & terminal
(B134) No. 29 — (E21) No. 2:
9 CHECK POOR CONTACT.
Check poor contact of manifold absolute pres-
sure sensor connector.
Check
Is the resistance less than 1
Ω?
Is there poor contact in mani-
fold absolute pressure sensor
connector?
EN(H4SO)(diag)-110
Yes No
Go to step 9. Repair the open
circuit of harness
between ECM and
manifold absolute
pressure sensor
connector.
Repair the poor Replace the mani-
contact of manifold fold absolute pres-
absolute pressure sure sensor. <Ref.
sensor connector. to FU(H4SO)-24,
Manifold Absolute
Pressure Sensor.>