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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. Phenomenon check
  3. Checking the diagnostic codes (Refer to CHECKING/CLEARING DIAGNOSTIC CODES )
    1. DTC check
    2. Clearing diagnostic code
    3. Rechecking the diagnostic codes
    RESULT DESCRIPTION

    Result Go to
    Code output present A
    No code output B

    B: Go to Step  5

    A: Go to next step

  4. List of diagnostic codes (main inspection parts) or troubleshooting for each code
    RESULT DESCRIPTION

    Result Go to
    Fault location confirmed A
    Fault location not confirmed B

    A: Go to Step  7

    B: Go to Step  6

  5. Inspection with SSM4 (Refer to DATA MONITOR/ACTIVE TEST )
    1. Perform the ECM data monitor and the active test.
    RESULT DESCRIPTION

    Result Go to
    Fault location not confirmed A
       
    Fault location confirmed B

    B: Go to Step  7

    A: Go to next step

  6. Inspection of the ECM terminal voltage and circuit (Refer to ECM TERMINAL ARRANGEMENT )
  7. Repair faulty parts
  8. Checking the diagnostic codes (Refer to CHECKING/CLEARING DIAGNOSTIC CODES )

    Completed