Check Hood Switch

WARNING: This page is about a different car, the 2019 Subaru Ascent. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DATA MONITOR.
Display the [Hood Switch] data using Subaru Select Monitor.

NOTE: For detailed operation procedures, refer to "Help" of application.

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

Yes: The hood switch is OK.

No: Go to 2.
CHECK HARNESS.
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 and terminal.
  
  (B281) No. 3 - (B329) No. 1:
Is the resistance less than 10 Ω?

Yes: Go to 3.

No: Repair or replace the harness.
CHECK HARNESS.
Measure the resistance between the hood switch and chassis ground.

Connector and terminal.

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

Is the resistance less than 10 Ω?

Yes: Go to 4.

No: Repair or replace the harness.
CHECK HOOD SWITCH.
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. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .

No: Replace the lock assembly front hood. Ref. to SECURITY AND LOCKS>FRONT HOOD LOCK ASSEMBLY .