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How to troubleshoot: Notes

  1. Bring in the car

    Next

  2. Interview and phenomenon check

    Next

  3. Battery voltage check
    1. Check for loose battery terminals and damage.
    2. Check the battery voltage.
    3. Refer to parts location drawings and circuit figures and inspect any parts that can be checked visually such as blown fuses in the system, wiring harness open circuit, short circuits, or poor connector contacts.
      NOTE: If the battery voltage is less than 11 V, please recharge or replace the battery before commencing the diagnostic procedure.
    4. Use the SSM4 to check the [Battery Voltage Lo Record]. (Refer to Data monitor )

      Next

  4. Check of diagnosis codes and freeze frame data
    1. Check of diagnosis codes and freeze frame data
      1. Record diagnosis codes and freeze frame data. (Refer to Check list for interview )
    2. Deletion of diagnosis codes and freeze frame data (Refer to Check list for interview )
    3. Diagnosis codes recheck (Refer to Check list for interview )
      1. Based on the recorded diagnosis codes and freeze frame data, recreate the trouble phenomenon and recheck for the presence of the diagnosis code output.
        NOTE:
        • If an error code for CAN communication system is output, first troubleshoot CAN communication and repair it. (Refer to How to troubleshoot )
        • If communication with the power steering computer ASSY cannot be established by the SSM4, check the CAN communication between the DLC3 and the power steering computer ASSY, as well as the power steering computer ASSY IG circuit.

    Result

    RESULT REFERENCE

    Result Go to
    Diagnosis code normal A:
    Error code output B
    Diagnosis code normal, unable to check or recreate the phenomenon C

    B: Refer to "List of diagnostic codes  " and perform troubleshooting for each code. Then go to step  7.

    C: Go to "Malfunction simulation ".

    A: Go to Next Step.

  5. Symptom table (Refer to Symptom table )

    Result

    RESULT REFERENCE

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

    B: Perform troubleshooting for each applicable symptom and progress to step 7.

    A: Go to Next Step.

  6. Based on the trouble phenomenon, use the following methods to perform troubleshooting
    1. Data monitor (Refer to Data monitor )
    2. ECM terminal arrangement (Refer to Circuit figure )

      Next

  7. Adjustment, repair, or replacement

    Next

  8. Confirmation test

    Next: Complete

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