Model With Push Button Start

DTC detecting condition: 

Immediately at fault recognition

Trouble symptom: 

Failure of engine to start

Wiring diagram: 

Engine Electrical System Ref. to WIRING SYSTEM>ENGINE ELECTRICAL SYSTEM>WIRING DIAGRAM .

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 connector and starter relay connector.
      NOTE: Place the select lever in "P" range or "N" range.

      Connector & terminal 

      (B134) No. 58 - (B159) No. 4:

   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 connector 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 connector and chassis ground.

      Connector & terminal 

      (B134) No. 58 - Chassis 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 connector and starter relay connector.