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Model With Push Button Start: Wiring Diagram

Engine Electrical System ENGINE TYPE EJ (WITH PUSH BUTTON START) <Ref. to 2.5L TURBO (WITH PUSH BUTTON START), WIRING DIAGRAM, Engine Electrical System.>

Fig 1: Starter Relay (Low) - Wiring Diagram (Model With Push Button Start)
G10265799Courtesy of SUBARU OF AMERICA, INC.
DIAGNOSTIC PROCEDURE

Step Check Yes No
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.

    Connector & terminal 

    (B136) No. 27 - (B225) No. 1: 

 Is the resistance less than 1 Ω? Go to step 2  . Repair the harness and connector.
NOTE: In this case, repair the following item:

  • Open circuit of harness between ECM connector and starter relay connector
  • Blown out of fuse
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 

    (B136) No. 27 - Chassis ground: 

 Is the resistance 1 MΩ or more? Repair the poor contact of ECM connector. Repair the short circuit to ground in harness between ECM connector and starter relay connector.
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