Subaru Forester 2004 Service Manual page 258

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
19 CHECK HARNESS BETWEEN ECM AND AC-
CELERATOR PEDAL POSITION SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM.
3) Disconnect the connector from the acceler-
ator pedal position sensor.
4) Measure the resistance between connector
terminals of accelerator pedal position sensor.
Connector & terminal
(B315) No. 5 — (B315) No. 2:
Check
Is the resistance more than 1
MΩ?
EN(H4DOTC 2.5)-257
ENGINE (DIAGNOSTIC)
Yes
Repair the poor Repair short circuit
contact in ECM con- in harness between
nector. Replace the ECM connector and
ECM if defective. accelerator pedal
position sensor con-
nector.
No