SFI SYSTEM(w/o EGR System) HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips

*: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT
  2. CUSTOMER PROBLEM ANALYSIS

    Result
    Proceed to
    NEXT

    NEXT
  3. CONNECT GTS TO DLC3*

    Tech Tips

    If the display indicates a communication fault in the GTS, inspect the DLC3.

    When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.

    Result
    Proceed to
    NEXT

    NEXT
  4. CHECK DTC AND FREEZE FRAME DATA*


    1. Check for DTCs.

      Click here

    2. Check for freeze frame data.

      Click here

      Tech Tips

      Record or print DTCs and freeze frame data if necessary.

      Result
      Proceed to
      NEXT

    NEXT
  5. CLEAR DTC AND FREEZE FRAME DATA*


    1. Clear the DTCs and freeze frame data.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  6. CONDUCT VISUAL INSPECTION

    Result
    Proceed to
    NEXT

    NEXT
  7. SELECT CHECK MODE DIAGNOSIS*


    1. Switch the ECM from normal mode to check mode.

      Tech Tips

      Refer to Check Mode Procedure.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  8. CONFIRM PROBLEM SYMPTOMS


    1. Confirm problem symptoms.

      Tech Tips

      If the engine does not start, first perform the "Check DTC" procedure and "Conduct Basic Inspection" procedure below.

      Result
      Result Proceed to
      Malfunction does not occur A
      Malfunction occurs B

    B
    A
  9. SIMULATE SYMPTOMS

    Tech Tips

    Refer to Symptom Simulation.

    Click here

    Result
    Proceed to
    NEXT

    NEXT
  10. CHECK DTC*


    1. Check for DTCs.

      Tech Tips

      Refer to DTC Check / Clear.

      Click here

      Result
      Result Proceed to
      DTC are output A
      DTCs are not output B

    B
    A
  11. REFER TO DTC CHART

    Tech Tips

    Refer to Diagnostic Trouble Code Chart.

    Click here

    Result
    Proceed to
    NEXT

    NEXT
  12. CONDUCT BASIC INSPECTION


    1. Conduct basic inspection.

      Tech Tips

      Refer to Basic Inspection.

      Click here

      Result
      Result Proceed to
      Malfunctioning parts not confirmed A
      Malfunctioning parts confirmed B

    B
    A
  13. REFER TO PROBLEM SYMPTOMS TABLE

    Tech Tips

    Refer to Problem Symptoms Table.

    Click here

    Result
    Result Proceed to
    Malfunctioning circuit confirmed A
    Malfunctioning parts confirmed B

    B
    A
  14. CHECK ECM POWER SOURCE CIRCUIT


    1. Check the ECM power source circuit.

      Tech Tips

      Refer to ECM Power Source Circuit.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  15. CONDUCT CIRCUIT INSPECTION

    Result
    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    B
    A
  16. CHECK FOR INTERMITTENT PROBLEMS


    1. Check for intermittent problems.

      Tech Tips

      Refer to Check for Intermittent Problems.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  17. CONDUCT PARTS INSPECTION

    Result
    Proceed to
    NEXT

    NEXT
  18. IDENTIFY PROBLEM

    Result
    Proceed to
    NEXT

    NEXT
  19. ADJUST AND/OR REPAIR

    Result
    Proceed to
    NEXT

    NEXT
  20. CONDUCT CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT