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Inspection steps

WARNING: This page is about a different car, the 2018 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.
  1. Reading of SSM4 data monitor
    1. On the SSM4, navigate to the [Data monitor] display, and check the computer data. (Refer to DATA MONITOR/ACTIVE TEST )

    SSM4 screen: [Each System] →[Body Control] →[Data monitor]

    Item name Description/display range Normal value Remarks
    [Luggage Courtesy SW] Status of the trunk lock ASSY
    Display range: [Close]-[Open]    		 Closed: The trunk door is closed.
    Open: The trunk door is open.    		 -

    Criteria: The normal value on the data monitor is displayed properly.

    NG: Go to step  2.

    OK: Go to next step

    See the next circuit for inspection shown on the symptom table. (Refer to SYMPTOM TABLE )

  2. Inspection of the trunk lock ASSY
    1. Remove the trunk lock ASSY. (Refer to TRUNK PANEL LOCK ASSY )
    2. Check the resistance between the connector terminals.

    Resistance

    Inspection terminals Inspection conditions Standard value
    3 (D+) - 2 (E) Open Less than 1 Ω
    3 (D+) - 2 (E) Locked 10 kΩ or more
    G12589486Courtesy of SUBARU OF AMERICA, INC.

    NG: Replacement of the trunk lock ASSY (Refer to TRUNK PANEL LOCK ASSY )

    OK: Go to next step

  3. Inspection of the wiring harness and the connector (trunk lock ASSY - instrument panel junction block ASSY and chassis ground)
    NOTE: For inspection procedures and precautions, refer to SYMPTOM TABLE .
    1. Disconnect the connector 3D of the instrument panel junction block ASSY.
    2. Disconnect the connector J3 of the trunk lock ASSY.
    3. Measure the resistance between the connector terminals on the vehicle wiring harness side.

    Resistance

    Inspection terminals Inspection conditions Standard value
    J3-3 (D+) - 3D-26 Always Less than 1 Ω
    J3-3 (D+) - chassis ground Always 10 kΩ or more
    J3-2 (E) - chassis ground Always Less than 1 Ω

    NG: Repair or replacement of wiring harness or connector

    OK: Go to next step

  4. Inspection of the instrument panel junction block ASSY.
    NOTE: For inspection procedures and precautions, refer to SYMPTOM TABLE .
    1. Remove the instrument panel junction block ASSY from the vehicle. (Refer to REMOVAL )
    2. Remove the main body ECM (multiplex network body computer) from the instrument panel junction block ASSY.
    3. Measure the resistance between the terminals.
    G12589487Courtesy of SUBARU OF AMERICA, INC.

    Resistance

    Inspection terminals (Terminal symbol) Inspection conditions Standard value
    3D-26 - MB-12 Always Less than 1 Ω

    NG: Replacement of the instrument panel junction block ASSY (Refer to REMOVAL )

    OK: Go to next step

    Replacement of the main body ECM (multiplex network body computer) (Refer to REMOVAL )

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