DTC P0616: Starter Relay "A" Circuit Low: Notes

1. - 

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 .

• Model without push button start

  Courtesy of SUBARU OF AMERICA, INC.

  Courtesy of SUBARU OF AMERICA, INC.

• Model with push button start

  Courtesy of SUBARU OF AMERICA, INC.

  Courtesy of SUBARU OF AMERICA, INC.

  CAUTION: Use the check board when measuring the ECM terminal voltage and resistance. Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>General Description>PREPARATION TOOL>HOW TO USE CHECK BOARD .
  NOTE: After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>Basic Diagnostic Procedure>PROCEDURE .

1. CHECK HARNESS BETWEEN ECM AND STARTER RELAY (OPEN)  .
   1. Turn the ignition switch to OFF.
   2. Disconnect the connector from ECM.
   3. Remove the starter relay.
   4. Measure the resistance of harness between ECM connector and M/B (starter relay) terminal.

      Connector & terminal 

      (B134) No. 19 - No. 3:

      Is the resistance less than 1 Ω?

      Yes  : Go to  2.

      No  : Repair the open circuit of harness between ECM connector and M/B (starter relay).

2. CHECK HARNESS BETWEEN ECM AND STARTER RELAY (SHORT TO GROUND)  .
   1. Disconnect the connector from starter motor.
   2. Measure the resistance between the ECM connector and engine ground.

      Connector & terminal 

      (B134) No. 19 - 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 connector and M/B (starter relay).