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Home › Subaru › 2017 › BRZ Series.Yellow › Repair and Diagnosis › Body & Frame › Door Locks › Key Warning System › Key warning system › How to troubleshoot

How to troubleshoot

NOTE:
  • Using the following procedures, perform the key warning system troubleshooting.
  • * : Use the SSM4.
  1. Bring in the car

    Next

  2. Check battery voltage
    1. Inspect the battery voltage.

      Standard voltage: 11 to 14V

      NOTE: If the voltage is 11 V or less, charge or replace the battery before proceeding to a next step.

      Next

  3. CAN communication system check
    1. Check CAN communication system. (Refer to How to troubleshoot )
      RESULT SPECIFICATION

      Result Go to
      Functioning properly A
      Not functioning properly B

      B: Go to "CAN communication system (How to troubleshoot)" (Refer to How to troubleshoot ).

      A: Go to Next Step.

  4. Symptom table
    RESULT SPECIFICATION

    Result Go to
    No trouble is indicated in check list for interview A
    A trouble is indicated in check list for interview B

    B: Go to Step  6.

    A: Go to Next Step.

  5. General analysis and troubleshooting *
    1. ECM terminals (Refer to ECM terminal arrangement )
    2. Data monitor/active test (Refer to Data monitor/active test )

      Next

  6. Repair or replace

    Next

  7. Confirmation test

    Next: Complete

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