Model With Push Button Start

Immediately at fault recognition

Trouble symptom: 

Failure of engine to start

Wiring diagram: 

Engine Electrical System TURBO MODEL (WITH PUSH BUTTON START) Ref. to WIRING SYSTEM>Engine Electrical System>WIRING DIAGRAM>TURBO MODEL (WITH PUSH BUTTON START) .

Fig 1: Starter Relay A Circuit Low - Wiring Diagram (Model With Push Button Start)

Courtesy of SUBARU OF AMERICA, INC.

1. CHECK HARNESS BETWEEN ECM AND STARTER RELAY CONNECTOR. 
   1. Turn the ignition to OFF.
   2. Disconnect the connector from ECM.
   3. Remove the starter relay.
   4. Measure the resistance of harness between ECM and starter relay connector.
      NOTE: Place the select lever in "P" range or "N" range.

      Connector & terminal 

      (B134) No. 8 - (B225) No. 1:

   Is the resistance less than 1 Ω?

   • Yes: Go to  2.
   • No: repair the harness and connector.
     NOTE: In this case, repair the following item:

     • Open circuit of harness between ECM and starter relay connector
     • Poor contact of coupling connector
2. CHECK HARNESS BETWEEN ECM AND STARTER RELAY CONNECTOR. 
   1. Disconnect the connector from starter motor.
   2. Measure the resistance between ECM and engine ground.

      Connector & terminal 

      (B134) No. 8 - Engine ground:

   Is the resistance 1 MΩ or more?

   • Yes: Repair the poor contact of ECM connector.
   • No: Repair the short circuit to ground in harness between ECM and starter relay connector.