Click here

SFI SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

Click here
Click here Click here
Tip:

*: Use the intelligent tester.


  1. Click here

    VEHICLE BROUGHT TO WORKSHOP


    • NEXT
  2. Click here

    CUSTOMER PROBLEM ANALYSIS


    • NEXT
  3. Click here

    CONNECT INTELLIGENT TESTER TO DLC3*

    Tip:

    If the display indicates a communication fault with the tester, inspect the DLC3. When any CAN communication system DTCs are output, perform troubleshooting on the CAN communication system first.


    • NEXT
  4. Click here

    CHECK DTC AND FREEZE FRAME DATA*


    1. Check for DTCs (Click here) and freeze frame data (Click here).

      Tip:

      Record or print DTCs and freeze frame data if necessary.


      • NEXT
  5. Click here

    CLEAR DTC AND FREEZE FRAME DATA*


    1. Clear the DTCs and freeze frame data (Click here).


      • NEXT
  6. Click here

    CONDUCT VISUAL INSPECTION


    • NEXT
  7. Click here

    SELECT CHECK MODE DIAGNOSIS*


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

      Tip:

      Refer to Check Mode Procedure (Click here).


      • NEXT
  8. Click here

    CONFIRM PROBLEM SYMPTOMS


    1. Confirm problem symptoms.

      Tip:

      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
      • GO TO STEP 10
      • A
  9. Click here

    SIMULATE SYMPTOMS

    Tip:

    Refer to Symptom Simulation (Click here).


    • NEXT
  10. Click here

    CHECK DTC*


    1. Check for DTCs.

      Tip:

      Refer to DTC Check / Clear (Click here).

      Result
      Result Proceed to
      DTC is output A
      DTC is not output B

      • B
      • GO TO STEP 12
      • A
  11. Click here

    REFER TO DTC CHART

    Tip:

    Refer to Diagnostic Trouble Code Chart (Click here).


    • NEXT
  12. Click here

    CONDUCT BASIC INSPECTION


    1. Conduct basic inspection.

      Tip:

      Refer to Basic Inspection (Click here).

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

      • B
      • GO TO STEP 17
      • A
  13. Click here

    REFER TO PROBLEM SYMPTOMS TABLE

    Tip:

    Refer to Problem Symptoms Table (Click here).

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

    • B
    • GO TO STEP 17
    • A
  14. Click here

    CHECK ECM POWER SOURCE CIRCUIT


    1. Check the ECM power source circuit.

      Tip:

      Refer to ECM Power Source Circuit (Click here).


      • NEXT
  15. Click here

    CONDUCT CIRCUIT INSPECTION

    Result
    Result Proceed to
    Malfunction not confirmed A
    Malfunction confirmed B

    • B
    • GO TO STEP 18
    • A
  16. Click here

    CHECK FOR INTERMITTENT PROBLEMS


    1. Check for intermittent problems.

      Tip:

      Refer to Check for Intermittent Problems (Click here).


      • NEXT
  17. Click here

    CONDUCT PARTS INSPECTION


    • NEXT
  18. Click here

    IDENTIFY PROBLEM


    • NEXT
  19. Click here

    ADJUST AND/OR REPAIR


    • NEXT
  20. Click here

    CONDUCT CONFIRMATION TEST


    • NEXT
    • END