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Home >> Subaru >> 2018 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) (STI) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0617: Starter Relay "A" Circuit High >> Model Without Push Button Start
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Model Without Push Button Start

DTC detecting condition: 

Immediately at fault recognition

Trouble symptom: 

Failure of engine to start

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode Ref. to ENGINE (DIAGNOSTICS) (STI)>Clear Memory Mode>OPERATION , and inspection mode Ref. to ENGINE (DIAGNOSTICS) (STI)>Inspection Mode>PROCEDURE .

Wiring diagram: 

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

G11574200Courtesy of SUBARU OF AMERICA, INC.
  1. CHECK DTC  .

    Read the engine DTC using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (STI)>Read Diagnostic Trouble Code (DTC) .

    Is DTC other than P0617 displayed? (Current malfunction)

    Yes:  Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (STI)>List of Diagnostic Trouble Code (DTC) .

    No:  Go to  2

  2. CHECK HARNESS BETWEEN ECM AND STARTER RELAY CONNECTOR  .
    1. Turn the ignition switch to OFF.
    2. Disconnect the connector from ECM.
    3. Turn the ignition switch to ON.
    4. Measure the voltage between ECM connector and chassis ground.

      Connector & terminal 

      (B136) No. 16 (+) - Chassis ground (-):

    Is the voltage 10 V or more?

    Yes:  Repair the short circuit to power in harness between ECM connector and starter relay connector.

    No:  Repair the poor contact of ECM connector.