DTC P0616 Starter Relay Circuit Low: Wiring Diagram

Engine electrical system, 2.5 L model (without push button start). See appropriate SYSTEM WIRING DIAGRAM article.

Fig 1: Starter Relay - Circuit Diagram

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK FOR ANY OTHER DTC ON DISPLAY.	Is any other DTC displayed?	Check DTC using "List of Diagnostic Trouble Code (DTC)". Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .	Go to step 2 .
2 CHECK HARNESS BETWEEN ECM AND STARTER RELAY CONNECTOR. Turn the ignition switch to OFF. Remove the starter relay. Disconnect the connectors from ECM and starter motor. Measure the resistance of harness between ECM and starter relay connector. Connector & terminal (B137) No. 17 - (B493) No. 3: NOTE: For CVT model, place the select lever in "P" range or "N" range.	Is the resistance less than 1 Ω?	Go to step 3 .	NOTE: Check the following item and repair or replace if necessary. Open circuit of harness between ECM and starter relay connector Poor contact of coupling connector
3 CHECK HARNESS BETWEEN ECM AND STARTER RELAY CONNECTOR. Measure the resistance between ECM and chassis ground. Connector & terminal (B137) No. 17 - 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 and starter relay connector.

Engine electrical system, 2.5 L model (with push button start). See appropriate SYSTEM WIRING DIAGRAM article.

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

Courtesy of SUBARU OF AMERICA, INC.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK HARNESS BETWEEN ECM AND STARTER RELAY CONNECTOR. Turn the ignition to OFF. Disconnect the connector from ECM. Remove the starter relay. Measure the resistance of harness between ECM and starter relay connector. NOTE: Place the select lever in "P" range or "N" range. Connector & terminal (B137) No. 14 - (B225) No. 43:	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 and starter relay connector Poor contact of coupling connector
2 CHECK HARNESS BETWEEN ECM AND STARTER RELAY CONNECTOR. Disconnect the connector from starter motor. Measure the resistance between ECM and chassis ground. Connector & terminal (B137) No. 14 - 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 and starter relay connector.