Model With Push Button Start

WARNING: This page is about a different variant/trim than selected.

DTC detecting condition:

Immediately at fault recognition

Trouble symptom:

Failure of engine to start

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Clear Memory Mode . and Inspection Mode Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Inspection Mode .
Use the check board when measuring the ECM terminal voltage and resistance.

Wiring diagram:

Engine Electrical System NON-TURBO MODEL (WITH PUSH BUTTON START) Ref. to WIRING SYSTEM>Engine Electrical System>WIRING DIAGRAM>NON-TURBO MODEL (WITH PUSH BUTTON START) .

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

Courtesy of SUBARU OF AMERICA, INC.

CHECK STARTER MOTOR .
1. Turn the ignition to ON.
2. Check the starter motor condition.
Is the starter motor rotating?
- Yes: Go to 2 .
- No: Repair the short circuit to power supply in harness.
  NOTE:
  In this case, repair the following harnesses:
  - Short circuit to power supply in harness between ECM connector and starter relay connector
  - Short circuit to power supply in harness between ECM connector and starter motor
  - Short circuit to power supply in harness between starter relay connector and starter motor
CHECK HARNESS BETWEEN STARTER CUT RELAY CONNECTOR AND STARTER RELAY CONNECTOR .
1. Turn the ignition to OFF.
2. Disconnect the connector from starter motor.
3. Remove the inhibitor relay.
4. Remove the starter relay.
5. Remove the starter cut relay.
6. Turn the ignition to ON.
7. Measure the voltage between starter relay connector and chassis ground.
Connector & terminal

(B225) No. 3 (+) - Chassis ground (-):

Is the voltage 10 V or more?
- Yes: Repair the short circuit to power supply in harness between starter cut relay connector and starter relay connector.
- No: Go to 3 .
CHECK STARTER CUT RELAY .
1. Connect the battery to starter cut relay terminals No. 40 and No. 42.
2. Measure the resistance between starter cut relay terminals.
Terminals

No. 41 -No. 44:

Is the resistance 1 MΩ or more?
- Yes: Go to 6.
- No: Replace the starter cut relay. Ref. to SECURITY AND LOCKS>Starter Cut Relay .
  Go to 4 .
CHECK HARNESS BETWEEN ECM AND STARTER RELAY CONNECTOR .
1. Disconnect the connector from ECM.
2. Measure the resistance between ECM connector and chassis ground.
Connector & terminal

(B134) No. 62 - Chassis ground:

Is the resistance 1 MΩ or more?
- Yes: Go to 5 .
- No: Repair the short circuit to ground in harness between ECM connector and starter relay connector.
CHECK STARTER RELAY .
Measure the resistance between starter relay terminals.

Terminals

No. 1 -No. 2:

Is the resistance 1 MΩ or more?
- Yes: Go to 6 .
- No: Replace the starter relay. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Electrical Component Location>LOCATION .
CHECK HARNESS BETWEEN ECM, STARTER RELAY CONNECTOR AND STARTER MOTOR .
1. Disconnect the connector from ECM.
2. Turn the ignition to ON.
3. Measure the voltage between ECM connector and chassis ground.
Connector & terminal

(B134) No. 5 (+) - Chassis ground (-):

Is the voltage 10 V or more?
- Yes: Repair the short circuit to power supply in harness.
  NOTE:
  In this case, repair the following harnesses:
  - Short circuit to power supply in harness between ECM connector and starter relay connector
  - Short circuit to power supply in harness between ECM connector and starter motor
  - Short circuit to power supply in harness between starter relay connector and starter motor
- No: Repair the poor contact of ECM connector.