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Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft System - Security And Locks >> Door Lock Control System >> Inspection >> Check Trunk Opener Switch Circuit

Check Trunk Opener Switch Circuit

  1. CHECK DATA MONITOR. 

    Using the Subaru Select Monitor, display the data of «R Gate Release SW input».

    NOTE: For detailed operation procedures, refer to "Application help".

    Does the display switch between OFF ←→ ON when the trunk opener switch is operated?

    Yes:  The trunk opener switch is normal.

    No:  Go to  2.

  2. CHECK HARNESS. 
    1. Disconnect the connectors of body integrated unit and trunk opener switch.
    2. Check the harness between the body integrated unit and trunk opener switch.

      Connector & terminal 

      (i84) No. 10 - (il3) No. 1:

    Is harness normal?

    Yes:  Go to  3.

    No:  Repair or replace the harness.

  3. CHECK HARNESS. 

    Measure the resistance between the trunk opener switch connector and chassis ground.

    Connector & terminal 

    (il3) No. 2 - Chassis ground:

    Is the resistance less than 10 Ω?

    Yes:  Go to  4.

    No:  Repair or replace the harness.

  4. CHECK TRUNK OPENER SWITCH. 

    Measure the resistance between terminals both when trunk opener switch is pressed and when not pressed.

    Terminals 

    No. 2 - No. 3:

    Is the resistance less than 10 Ω when the switch is pressed and 1 MΩ or more when not pressed?

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

    No:  Replace the trunk opener switch.