Subaru IMPREZA GD 2007 Series Manual page 414

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
6 CHECK HARNESS BETWEEN ECM AND
ELECTRONIC THROTTLE CONTROL.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from the ECM.
3) Measure the resistance between ECM con-
nectors.
Connector & terminal
(B134) No. 19 — (B134) No. 18:
(B134) No. 19 — (B134) No. 28:
Check
Is the resistance 1 MΩ or
more?
EN(H4SO)(diag)-305
ENGINE (DIAGNOSTICS)
Yes No
Repair poor con- Repair the short
tact of the elec- circuit of harness
tronic throttle between ECM and
control connector. electronic throttle
Replace the elec- control connector.
tronic throttle con-
trol if defective.
<Ref. to
FU(H4SO)-12,
Throttle Body.>