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How To Troubleshoot

  1. Bring in the car
  2. Interview and phenomenon check
  3. Read DTC
    1. Check the DTC(s) related to engine and CAN communication system and the freeze frame data.
    2. When DTC is output or freeze frame data is displayed, store it.
      CAUTION: When clearing the DTC and/or freeze frame data, be sure to store the data before clearing it.
    RESULT DESCRIPTION

    Result Go to
    When DTC not related to CAN communication system is output. A
    When no DTC is output. B
    When DTC related to CAN communication system is output. C

    B: Go to Step  12.

    C: Go to CAN communication information. (Refer to HOW TO TROUBLESHOOT )

    A: Go to the next step

  4. Check repeatability of malfunction
    1. Perform repeatability test, referring to the result of the interview.
    RESULT DESCRIPTION

    Result Go to
    When malfunction is repeated A
    When malfunction is not repeated B

    B: Go to Step  9.

    A: Go to the next step

  5. List of diagnostic codes (main inspection parts) or troubleshooting for DTC
    1. Refer to list of diagnostic codes, and perform troubleshooting for DTC. (Refer to DTC TABLE )
    RESULT DESCRIPTION

    Result Go to
    When faulty points are not determined. A
    When faulty points are determined. B

    B: Go to Step  7.

    A: Go to the next step

  6. System circuit inspection
    1. If the faulty parts are not specified after the diagnosis according to the inspection procedure, refer to the inspection method of the electrical circuit, and perform the circuit inspection again. (For system circuit figure, refer to CIRCUIT FIGURE .)
  7. Repair faulty points
  8. Read DTC (Refer to CHECKING/CLEARING DTC )

    Complete

  9. Inspection for problems that do not normally occur (Refer to CHECKING/CLEARING DTC )
  10. Repair faulty points
  11. Read DTC (Refer to CHECKING/CLEARING DTC )

    Complete

  12. Check repeatability of malfunction
    1. Perform repeatability test, referring to the result of the interview.
    RESULT DESCRIPTION

    Result Go to
    When malfunction is repeated A
    When malfunction is not repeated B

    B: Go to Step  19.

    A: Go to the next step

  13. Symptom table
    1. Estimate the location of the faulty points from the result of the interview, and perform necessary inspection. (Refer to SYMPTOM TABLE )
    RESULT DESCRIPTION

    Result Go to
    Faulty points are not determined. A
    Faulty points are determined. B

    B: Go to Step  17.

    A: Go to the next step

  14. Basic inspection
    1. Estimate the location of the faulty points from the result of the interview, and perform necessary inspection. (Refer to SYMPTOM TABLE )
    RESULT DESCRIPTION

    Result Go to
    Faulty points are not determined. A
    Faulty points are determined. B

    B: Go to Step  17.

    A: Go to the next step

  15. Inspection with SSM4
    1. Check the data monitor and perform the active test. (Refer to DATA MONITOR/ACTIVE TEST )
    RESULT DESCRIPTION

    Result Go to
    Faulty points are not determined. A
    Faulty points are determined. B

    B: Go to Step  17.

    A: Go to the next step

  16. System circuit inspection
    1. If any defective point is not located in the areas outside of the engine control computer after diagnosis according to the inspection procedure, refer to the inspection method of the electrical circuit, and perform the circuit inspection again. (For system circuit figure, refer to CIRCUIT FIGURE .)
  17. Repair faulty points
  18. Check trouble phenomenon
    1. Perform driving test referring to the result of the interview, and check that the malfunction does not recur.

    Complete

  19. Symptom table
    1. Estimate the location of the faulty points from the result of the interview, and perform necessary inspection. (Refer to SYMPTOM TABLE )
    RESULT DESCRIPTION

    Result Go to
    Faulty points are not determined. A
    Faulty points are determined. B

    B: Go to Step  24.

    A: Go to the next step

  20. Basic inspection
    1. Estimate the location of the faulty points from the result of the interview, and perform necessary inspection. (Refer to EFI SYSTEM (FA20) )
    RESULT DESCRIPTION

    Result Go to
    When faulty points are not determined. A
    When faulty points are determined. B

    B: Go to Step  24.

    A: Go to the next step

  21. Inspection with SSM4
    1. Check the data monitor and perform the active test. (Refer to DATA MONITOR/ACTIVE TEST )
    RESULT DESCRIPTION

    Result Go to
    Faulty points are not determined. A
    Faulty points are determined. B

    B: Go to Step  24.

    A: Go to the next step

  22. System circuit inspection
    1. If any defective point is not located in the areas outside of the engine control computer after diagnosis according to the inspection procedure, refer to the inspection method of the electrical circuit, and perform the circuit inspection again. (For system circuit figure, refer to CIRCUIT FIGURE .)
  23. Inspection for problems that do not normally occur (Refer to CHECKING/CLEARING DTC )
  24. Repair faulty points
  25. Check trouble phenomenon
    1. Perform driving test referring to the result of the interview, and check that the malfunction does not recur.

    Complete

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