Subaru IMPREZA GD 2007 Series Manual page 1673

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
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? Repair poor con-
EN(STI)(diag)-342
Yes No
Repair the short
tact of the elec- circuit to power in
tronic throttle the harness
control connector. between ECM and
Replace the elec- electronic throttle
tronic throttle con- control connector.
trol if defective.
<Ref. to
FU(H4DOTC)-16,
Throttle Body.>