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Check Trunk Opener Switch Circuit

  1. CHECK DATA MONITOR  .

    Display the [R Gate Release SW input] data using Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR>OPERATION .

    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 body integrated unit and trunk opener switch.

    Connector and terminal 

    (i82) No. 6 - (i140) No. 1:

    Is harness normal?

    Yes: Go to  3 .

    No: Repair or replace the harness.

  3. CHECK HARNESS  .

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

    Connector and terminal 

    (i140) No. 4 - 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. 1 - No. 4:

    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. Ref. to BODY CONTROL/COMMUNICATION SYSTEM>BODY INTEGRATED UNIT .

    No: Replace the trunk opener switch. Ref. to SECURITY AND LOCKS>TRUNK OPENER SWITCH .

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