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How To Troubleshoot

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. Bring in the car
  2. Interview and phenomenon check
    NOTE: Refer to CHECK LIST FOR INTERVIEW .
  3. Inspection of CAN communication system
    1. Check all diagnostic codes to confirm that no diagnostic code is recorded.

    Result

    Result Go to
    No diagnostic code recorded A
    Diagnostic code recorded B

    B: Go to "CAN communication system". NW-30

    A: Go to next step

  4. Symptom table
    NOTE: Refer to SYMPTOM TABLE .

    Result

    Result Go to
    Not applicable to the symptom table. A
    Applicable to the symptom table. B

    B: Go to step  6.

    A: Go to next step

  5. Based on the trouble phenomenon, perform troubleshooting following the steps below.
    1. Function inspection (Refer to LIGHTING SYSTEM )
    2. ECM terminal arrangement (Refer to ECM TERMINAL ARRANGEMENT )
    3. Data monitor/active test (Refer to DATA MONITOR/ACTIVE TEST )
    4. On-vehicle inspection
    5. Unit inspection
  6. Adjustment, repair, or replacement
  7. Confirmation test

    Complete

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