Check Hood Switch

Display the [Hood Switch Close-side] data using Subaru Select Monitor. Refer to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .

Does the display switch between [OFF] ←→ [ON] when the front hood is opened ←→ closed?

Yes

The hood switch is OK.

No

Go to  2.

Display the [Hood Switch Open-side] data using Subaru Select Monitor. Refer to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .

Does the display switch between [ON] ←→ [OFF] when the front hood is opened ←→ closed?

Yes

The hood switch is OK.

No

Go to  3.

1. Disconnect the connector of body integrated unit.
2. Disconnect the connector of hood switch.
3. Measure the resistance of harness between body integrated unit and hood switch.

Connector & terminal 

(B281) No. 3 - (B329) No. 1:

(i81) No. 7 - (B329) No. 3:

Is the resistance less than 10 Ω?

Yes

Go to  4.

No

Repair or replace the harness.

Measure the resistance between the hood switch and chassis ground.

Connector & terminal 

(B329) No. 2 - Chassis ground (-):

Is the resistance less than 10 Ω?

Yes

Go to  5.

No

Repair or replace the harness.

Measure the resistance between hood switch terminals.

Terminals 

No. 3 - No. 2

Is the resistance less than 1 Ω when the front hood is closed?

Yes

Replace the lock assembly front hood. Refer to SECURITY AND LOCKS>FRONT HOOD LOCK ASSEMBLY .

No

Replace the body integrated unit. Refer to SECURITY AND LOCKS>BODY INTEGRATED UNIT .

Measure the resistance between hood switch terminals.

Terminals 

No. 1 - No. 2

Is the resistance less than 1 Ω when the front hood is closed?

Yes

Replace the body integrated unit. Refer to SECURITY AND LOCKS>BODY INTEGRATED UNIT .

No

Replace the lock assembly front hood. Refer to SECURITY AND LOCKS>FRONT HOOD LOCK ASSEMBLY .